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dart / pub / refs/tags/SDK-2.0.0-dev.15.0 / . / test / version_solver_test.dart
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// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
import 'dart:async';
import 'package:path/path.dart' as p;
import 'package:test/test.dart';
import 'package:pub/src/lock_file.dart';
import 'package:pub/src/pubspec.dart';
import 'package:pub/src/source/hosted.dart';
import 'package:pub/src/source_registry.dart';
import 'descriptor.dart' as d;
import 'test_pub.dart';
main() {
group('basic graph', basicGraph);
group('with lockfile', withLockFile);
group('root dependency', rootDependency);
group('dev dependency', devDependency);
group('unsolvable', unsolvable);
group('bad source', badSource);
group('backtracking', backtracking);
group('Dart SDK constraint', dartSdkConstraint);
group('Flutter SDK constraint', flutterSdkConstraint);
group('pre-release', prerelease);
group('override', override);
group('downgrade', downgrade);
group('features', features);
}
void basicGraph() {
test('no dependencies', () async {
await d.appDir().create();
await expectResolves(result: {});
});
test('simple dependency tree', () async {
await servePackages((builder) {
builder.serve('a', '1.0.0', deps: {'aa': '1.0.0', 'ab': '1.0.0'});
builder.serve('aa', '1.0.0');
builder.serve('ab', '1.0.0');
builder.serve('b', '1.0.0', deps: {'ba': '1.0.0', 'bb': '1.0.0'});
builder.serve('ba', '1.0.0');
builder.serve('bb', '1.0.0');
});
await d.appDir({'a': '1.0.0', 'b': '1.0.0'}).create();
await expectResolves(result: {
'a': '1.0.0',
'aa': '1.0.0',
'ab': '1.0.0',
'b': '1.0.0',
'ba': '1.0.0',
'bb': '1.0.0'
});
});
test('shared dependency with overlapping constraints', () async {
await servePackages((builder) {
builder.serve('a', '1.0.0', deps: {'shared': '>=2.0.0 <4.0.0'});
builder.serve('b', '1.0.0', deps: {'shared': '>=3.0.0 <5.0.0'});
builder.serve('shared', '2.0.0');
builder.serve('shared', '3.0.0');
builder.serve('shared', '3.6.9');
builder.serve('shared', '4.0.0');
builder.serve('shared', '5.0.0');
});
await d.appDir({'a': '1.0.0', 'b': '1.0.0'}).create();
await expectResolves(
result: {'a': '1.0.0', 'b': '1.0.0', 'shared': '3.6.9'});
});
test(
'shared dependency where dependent version in turn affects other '
'dependencies', () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0');
builder.serve('foo', '1.0.1', deps: {'bang': '1.0.0'});
builder.serve('foo', '1.0.2', deps: {'whoop': '1.0.0'});
builder.serve('foo', '1.0.3', deps: {'zoop': '1.0.0'});
builder.serve('bar', '1.0.0', deps: {'foo': '<=1.0.1'});
builder.serve('bang', '1.0.0');
builder.serve('whoop', '1.0.0');
builder.serve('zoop', '1.0.0');
});
await d.appDir({'foo': '<=1.0.2', 'bar': '1.0.0'}).create();
await expectResolves(
result: {'foo': '1.0.1', 'bar': '1.0.0', 'bang': '1.0.0'});
});
test('circular dependency', () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', deps: {'bar': '1.0.0'});
builder.serve('bar', '1.0.0', deps: {'foo': '1.0.0'});
});
await d.appDir({'foo': '1.0.0'}).create();
await expectResolves(result: {'foo': '1.0.0', 'bar': '1.0.0'});
});
test('removed dependency', () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0');
builder.serve('foo', '2.0.0');
builder.serve('bar', '1.0.0');
builder.serve('bar', '2.0.0', deps: {'baz': '1.0.0'});
builder.serve('baz', '1.0.0', deps: {'foo': '2.0.0'});
});
await d.appDir({'foo': '1.0.0', 'bar': 'any'}).create();
await expectResolves(result: {'foo': '1.0.0', 'bar': '1.0.0'}, tries: 2);
});
}
void withLockFile() {
test('with compatible locked dependency', () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', deps: {'bar': '1.0.0'});
builder.serve('foo', '1.0.1', deps: {'bar': '1.0.1'});
builder.serve('foo', '1.0.2', deps: {'bar': '1.0.2'});
builder.serve('bar', '1.0.0');
builder.serve('bar', '1.0.1');
builder.serve('bar', '1.0.2');
});
await d.appDir({'foo': '1.0.1'}).create();
await expectResolves(result: {'foo': '1.0.1', 'bar': '1.0.1'});
await d.appDir({'foo': 'any'}).create();
await expectResolves(result: {'foo': '1.0.1', 'bar': '1.0.1'});
});
test('with incompatible locked dependency', () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', deps: {'bar': '1.0.0'});
builder.serve('foo', '1.0.1', deps: {'bar': '1.0.1'});
builder.serve('foo', '1.0.2', deps: {'bar': '1.0.2'});
builder.serve('bar', '1.0.0');
builder.serve('bar', '1.0.1');
builder.serve('bar', '1.0.2');
});
await d.appDir({'foo': '1.0.1'}).create();
await expectResolves(result: {'foo': '1.0.1', 'bar': '1.0.1'});
await d.appDir({'foo': '>1.0.1'}).create();
await expectResolves(result: {'foo': '1.0.2', 'bar': '1.0.2'});
});
test('with unrelated locked dependency', () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', deps: {'bar': '1.0.0'});
builder.serve('foo', '1.0.1', deps: {'bar': '1.0.1'});
builder.serve('foo', '1.0.2', deps: {'bar': '1.0.2'});
builder.serve('bar', '1.0.0');
builder.serve('bar', '1.0.1');
builder.serve('bar', '1.0.2');
builder.serve('baz', '1.0.0');
});
await d.appDir({'baz': '1.0.0'}).create();
await expectResolves(result: {'baz': '1.0.0'});
await d.appDir({'foo': 'any'}).create();
await expectResolves(result: {'foo': '1.0.2', 'bar': '1.0.2'});
});
test(
'unlocks dependencies if necessary to ensure that a new '
'dependency is satisfied', () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', deps: {'bar': '<2.0.0'});
builder.serve('bar', '1.0.0', deps: {'baz': '<2.0.0'});
builder.serve('baz', '1.0.0', deps: {'qux': '<2.0.0'});
builder.serve('qux', '1.0.0');
builder.serve('foo', '2.0.0', deps: {'bar': '<3.0.0'});
builder.serve('bar', '2.0.0', deps: {'baz': '<3.0.0'});
builder.serve('baz', '2.0.0', deps: {'qux': '<3.0.0'});
builder.serve('qux', '2.0.0');
builder.serve('newdep', '2.0.0', deps: {'baz': '>=1.5.0'});
});
await d.appDir({'foo': '1.0.0'}).create();
await expectResolves(result: {
'foo': '1.0.0',
'bar': '1.0.0',
'baz': '1.0.0',
'qux': '1.0.0'
});
await d.appDir({'foo': 'any', 'newdep': '2.0.0'}).create();
await expectResolves(result: {
'foo': '2.0.0',
'bar': '2.0.0',
'baz': '2.0.0',
'qux': '1.0.0',
'newdep': '2.0.0'
}, tries: 4);
});
}
void rootDependency() {
test('with root source', () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', deps: {'myapp': 'any'});
});
await d.appDir({'foo': '1.0.0'}).create();
await expectResolves(result: {'foo': '1.0.0'});
});
test('with mismatched sources', () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', deps: {'myapp': 'any'});
builder.serve('bar', '1.0.0', deps: {
'myapp': {'git': 'nowhere'}
});
});
await d.appDir({'foo': '1.0.0', 'bar': '1.0.0'}).create();
await expectResolves(
error: "Incompatible dependencies on myapp:\n"
"- bar 1.0.0 depends on it from source git\n"
"- foo 1.0.0 depends on it from source hosted");
});
test('with wrong version', () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', deps: {'myapp': '>0.0.0'});
});
await d.appDir({'foo': '1.0.0'}).create();
await expectResolves(
error: "Package myapp has no versions that match >0.0.0 derived from:\n"
"- foo 1.0.0 depends on version >0.0.0");
});
}
void devDependency() {
test("includes root package's dev dependencies", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0');
builder.serve('bar', '1.0.0');
});
await d.dir(appPath, [
d.pubspec({
'name': 'myapp',
'dev_dependencies': {'foo': '1.0.0', 'bar': '1.0.0'}
})
]).create();
await expectResolves(result: {'foo': '1.0.0', 'bar': '1.0.0'});
});
test("includes dev dependency's transitive dependencies", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', deps: {'bar': '1.0.0'});
builder.serve('bar', '1.0.0');
});
await d.dir(appPath, [
d.pubspec({
'name': 'myapp',
'dev_dependencies': {'foo': '1.0.0'}
})
]).create();
await expectResolves(result: {'foo': '1.0.0', 'bar': '1.0.0'});
});
test("ignores transitive dependency's dev dependencies", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
'dev_dependencies': {'bar': '1.0.0'}
});
});
await d.appDir({'foo': '1.0.0'}).create();
await expectResolves(result: {'foo': '1.0.0'});
});
group("with both a dev and regular dependency", () {
test("succeeds when both are satisfied", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0');
builder.serve('foo', '2.0.0');
builder.serve('foo', '3.0.0');
});
await d.dir(appPath, [
d.pubspec({
'name': 'myapp',
'dependencies': {'foo': '>=1.0.0 <3.0.0'},
'dev_dependencies': {'foo': '>=2.0.0 <4.0.0'}
})
]).create();
await expectResolves(result: {'foo': '2.0.0'});
});
test("fails when main dependency isn't satisfied", () async {
await servePackages((builder) {
builder.serve('foo', '3.0.0');
});
await d.dir(appPath, [
d.pubspec({
'name': 'myapp',
'dependencies': {'foo': '>=1.0.0 <3.0.0'},
'dev_dependencies': {'foo': '>=2.0.0 <4.0.0'}
})
]).create();
await expectResolves(
error: "Package foo has no versions that match >=2.0.0 <3.0.0 "
"derived from:\n"
"- myapp depends on version >=1.0.0 <3.0.0\n"
"- myapp depends on version >=2.0.0 <4.0.0");
});
test("fails when dev dependency isn't satisfied", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0');
});
await d.dir(appPath, [
d.pubspec({
'name': 'myapp',
'dependencies': {'foo': '>=1.0.0 <3.0.0'},
'dev_dependencies': {'foo': '>=2.0.0 <4.0.0'}
})
]).create();
await expectResolves(
error: "Package foo has no versions that match >=2.0.0 <3.0.0 "
"derived from:\n"
"- myapp depends on version >=1.0.0 <3.0.0\n"
"- myapp depends on version >=2.0.0 <4.0.0");
});
test("fails when dev and main constraints are incompatible", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0');
});
await d.dir(appPath, [
d.pubspec({
'name': 'myapp',
'dependencies': {'foo': '>=1.0.0 <2.0.0'},
'dev_dependencies': {'foo': '>=2.0.0 <3.0.0'}
})
]).create();
await expectResolves(
error:
"Package foo has no versions that match <empty> derived from:\n"
"- myapp depends on version >=1.0.0 <2.0.0\n"
"- myapp depends on version >=2.0.0 <3.0.0");
});
test("fails when dev and main sources are incompatible", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0');
});
await d.dir(appPath, [
d.pubspec({
'name': 'myapp',
'dependencies': {'foo': '>=1.0.0 <2.0.0'},
'dev_dependencies': {
'foo': {'path': '../foo'}
}
})
]).create();
await expectResolves(
error: "Incompatible dependencies on foo:\n"
"- myapp depends on it from source hosted\n"
"- myapp depends on it from source path");
});
test("fails when dev and main descriptions are incompatible", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0');
});
await d.dir(appPath, [
d.pubspec({
'name': 'myapp',
'dependencies': {
'foo': {'path': 'foo'}
},
'dev_dependencies': {
'foo': {'path': '../foo'}
}
})
]).create();
await expectResolves(
error: 'Incompatible dependencies on foo:\n'
'- myapp depends on it with description '
'{"path":"foo","relative":true}\n'
'- myapp depends on it with description '
'{"path":"../foo","relative":true}');
});
});
}
void unsolvable() {
test('no version that matches constraint', () async {
await servePackages((builder) {
builder.serve('foo', '2.0.0');
builder.serve('foo', '2.1.3');
});
await d.appDir({'foo': '>=1.0.0 <2.0.0'}).create();
await expectResolves(
error: 'Package foo has no versions that match >=1.0.0 <2.0.0 derived '
'from:\n'
'- myapp depends on version >=1.0.0 <2.0.0');
});
test('no version that matches combined constraint', () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', deps: {'shared': '>=2.0.0 <3.0.0'});
builder.serve('bar', '1.0.0', deps: {'shared': '>=2.9.0 <4.0.0'});
builder.serve('shared', '2.5.0');
builder.serve('shared', '3.5.0');
});
await d.appDir({'foo': '1.0.0', 'bar': '1.0.0'}).create();
await expectResolves(
error: 'Package shared has no versions that match >=2.9.0 <3.0.0 '
'derived from:\n'
'- bar 1.0.0 depends on version >=2.9.0 <4.0.0\n'
'- foo 1.0.0 depends on version >=2.0.0 <3.0.0');
});
test('disjoint constraints', () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', deps: {'shared': '<=2.0.0'});
builder.serve('bar', '1.0.0', deps: {'shared': '>3.0.0'});
builder.serve('shared', '2.0.0');
builder.serve('shared', '4.0.0');
});
await d.appDir({'foo': '1.0.0', 'bar': '1.0.0'}).create();
await expectResolves(
error: 'Incompatible version constraints on shared:\n'
'- bar 1.0.0 depends on version >3.0.0\n'
'- foo 1.0.0 depends on version <=2.0.0');
});
test('mismatched descriptions', () async {
var otherServer = await PackageServer.start((builder) {
builder.serve('shared', '1.0.0');
});
await servePackages((builder) {
builder.serve('foo', '1.0.0', deps: {'shared': '1.0.0'});
builder.serve('bar', '1.0.0', deps: {
'shared': {
'hosted': {'name': 'shared', 'url': otherServer.url},
'version': '1.0.0'
}
});
builder.serve('shared', '1.0.0');
});
await d.appDir({'foo': '1.0.0', 'bar': '1.0.0'}).create();
await expectResolves(
error: allOf([
contains('Incompatible dependencies on shared:'),
contains('- bar 1.0.0 depends on it with description'),
contains('- foo 1.0.0 depends on it with description "shared"')
]));
});
test('mismatched sources', () async {
await d.dir('shared', [d.libPubspec('shared', '1.0.0')]).create();
await servePackages((builder) {
builder.serve('foo', '1.0.0', deps: {'shared': '1.0.0'});
builder.serve('bar', '1.0.0', deps: {
'shared': {'path': p.join(d.sandbox, 'shared')}
});
builder.serve('shared', '1.0.0');
});
await d.appDir({'foo': '1.0.0', 'bar': '1.0.0'}).create();
await expectResolves(
error: 'Incompatible dependencies on shared:\n'
'- bar 1.0.0 depends on it from source path\n'
'- foo 1.0.0 depends on it from source hosted');
});
test('no valid solution', () async {
await servePackages((builder) {
builder.serve('a', '1.0.0', deps: {'b': '1.0.0'});
builder.serve('a', '2.0.0', deps: {'b': '2.0.0'});
builder.serve('b', '1.0.0', deps: {'a': '2.0.0'});
builder.serve('b', '2.0.0', deps: {'a': '1.0.0'});
});
await d.appDir({'a': 'any', 'b': 'any'}).create();
await expectResolves(
error: 'Package a has no versions that match 2.0.0 derived from:\n'
'- b 1.0.0 depends on version 2.0.0\n'
'- myapp depends on version any',
tries: 2);
});
// This is a regression test for #15550.
test('no version that matches while backtracking', () async {
await servePackages((builder) {
builder.serve('a', '1.0.0');
builder.serve('b', '1.0.0');
});
await d.appDir({'a': 'any', 'b': '>1.0.0'}).create();
await expectResolves(
error: 'Package b has no versions that match >1.0.0 derived from:\n'
'- myapp depends on version >1.0.0');
});
// This is a regression test for #18300.
test('issue 18300', () async {
await servePackages((builder) {
builder.serve('analyzer', '0.12.2');
builder.serve('angular', '0.10.0',
deps: {'di': '>=0.0.32 <0.1.0', 'collection': '>=0.9.1 <1.0.0'});
builder.serve('angular', '0.9.11',
deps: {'di': '>=0.0.32 <0.1.0', 'collection': '>=0.9.1 <1.0.0'});
builder.serve('angular', '0.9.10',
deps: {'di': '>=0.0.32 <0.1.0', 'collection': '>=0.9.1 <1.0.0'});
builder.serve('collection', '0.9.0');
builder.serve('collection', '0.9.1');
builder.serve('di', '0.0.37', deps: {'analyzer': '>=0.13.0 <0.14.0'});
builder.serve('di', '0.0.36', deps: {'analyzer': '>=0.13.0 <0.14.0'});
});
await d.appDir({'angular': 'any', 'collection': 'any'}).create();
await expectResolves(
error: 'Package analyzer has no versions that match >=0.13.0 <0.14.0 '
'derived from:\n'
'- di 0.0.36 depends on version >=0.13.0 <0.14.0',
tries: 2);
});
}
void badSource() {
test('fail if the root package has a bad source in dep', () async {
await d.appDir({
'foo': {'bad': 'any'}
}).create();
await expectResolves(
error: 'Package myapp depends on foo from unknown source "bad".');
});
test('fail if the root package has a bad source in dev dep', () async {
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'dev_dependencies': {
'foo': {'bad': 'any'}
}
})
]).create();
await expectResolves(
error: 'Package myapp depends on foo from unknown source "bad".');
});
test('fail if all versions have bad source in dep', () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', deps: {
'bar': {'bad': 'any'}
});
builder.serve('foo', '1.0.1', deps: {
'baz': {'bad': 'any'}
});
builder.serve('foo', '1.0.2', deps: {
'bang': {'bad': 'any'}
});
});
await d.appDir({'foo': 'any'}).create();
await expectResolves(
error: 'Package foo depends on bar from unknown source "bad".');
});
test('ignore versions with bad source in dep', () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', deps: {'bar': 'any'});
builder.serve('foo', '1.0.1', deps: {
'bar': {'bad': 'any'}
});
builder.serve('foo', '1.0.2', deps: {
'bar': {'bad': 'any'}
});
builder.serve('bar', '1.0.0');
});
await d.appDir({'foo': 'any'}).create();
await expectResolves(result: {'foo': '1.0.0', 'bar': '1.0.0'});
});
}
void backtracking() {
test('circular dependency on older version', () async {
await servePackages((builder) {
builder.serve('a', '1.0.0');
builder.serve('a', '2.0.0', deps: {'b': '1.0.0'});
builder.serve('b', '1.0.0', deps: {'a': '1.0.0'});
});
await d.appDir({'a': '>=1.0.0'}).create();
await expectResolves(result: {'a': '1.0.0'}, tries: 2);
});
// The latest versions of a and b disagree on c. An older version of either
// will resolve the problem. This test validates that b, which is farther
// in the dependency graph from myapp is downgraded first.
test('rolls back leaf versions first', () async {
await servePackages((builder) {
builder.serve('a', '1.0.0', deps: {'b': 'any'});
builder.serve('a', '2.0.0', deps: {'b': 'any', 'c': '2.0.0'});
builder.serve('b', '1.0.0');
builder.serve('b', '2.0.0', deps: {'c': '1.0.0'});
builder.serve('c', '1.0.0');
builder.serve('c', '2.0.0');
});
await d.appDir({'a': 'any'}).create();
await expectResolves(result: {'a': '2.0.0', 'b': '1.0.0', 'c': '2.0.0'});
});
// Only one version of baz, so foo and bar will have to downgrade until they
// reach it.
test('simple transitive', () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', deps: {'bar': '1.0.0'});
builder.serve('foo', '2.0.0', deps: {'bar': '2.0.0'});
builder.serve('foo', '3.0.0', deps: {'bar': '3.0.0'});
builder.serve('bar', '1.0.0', deps: {'baz': 'any'});
builder.serve('bar', '2.0.0', deps: {'baz': '2.0.0'});
builder.serve('bar', '3.0.0', deps: {'baz': '3.0.0'});
builder.serve('baz', '1.0.0');
});
await d.appDir({'foo': 'any'}).create();
await expectResolves(
result: {'foo': '1.0.0', 'bar': '1.0.0', 'baz': '1.0.0'}, tries: 3);
});
// This ensures it doesn't exhaustively search all versions of b when it's
// a-2.0.0 whose dependency on c-2.0.0-nonexistent led to the problem. We
// make sure b has more versions than a so that the solver tries a first
// since it sorts sibling dependencies by number of versions.
test('backjump to nearer unsatisfied package', () async {
await servePackages((builder) {
builder.serve('a', '1.0.0', deps: {'c': '1.0.0'});
builder.serve('a', '2.0.0', deps: {'c': '2.0.0-nonexistent'});
builder.serve('b', '1.0.0');
builder.serve('b', '2.0.0');
builder.serve('b', '3.0.0');
builder.serve('c', '1.0.0');
});
await d.appDir({'a': 'any', 'b': 'any'}).create();
await expectResolves(
result: {'a': '1.0.0', 'b': '3.0.0', 'c': '1.0.0'}, tries: 2);
});
// Tests that the backjumper will jump past unrelated selections when a
// source conflict occurs. This test selects, in order:
// - myapp -> a
// - myapp -> b
// - myapp -> c (1 of 5)
// - b -> a
// It selects a and b first because they have fewer versions than c. It
// traverses b's dependency on a after selecting a version of c because
// dependencies are traversed breadth-first (all of myapps's immediate deps
// before any other their deps).
//
// This means it doesn't discover the source conflict until after selecting
// c. When that happens, it should backjump past c instead of trying older
// versions of it since they aren't related to the conflict.
test('successful backjump to conflicting source', () async {
await d.dir('a', [d.libPubspec('a', '1.0.0')]).create();
await servePackages((builder) {
builder.serve('a', '1.0.0');
builder.serve('b', '1.0.0', deps: {'a': 'any'});
builder.serve('b', '2.0.0', deps: {
'a': {'path': p.join(d.sandbox, 'a')}
});
builder.serve('c', '1.0.0');
builder.serve('c', '2.0.0');
builder.serve('c', '3.0.0');
builder.serve('c', '4.0.0');
builder.serve('c', '5.0.0');
});
await d.appDir({'a': 'any', 'b': 'any', 'c': 'any'}).create();
await expectResolves(result: {'a': '1.0.0', 'b': '1.0.0', 'c': '5.0.0'});
});
// Like the above test, but for a conflicting description.
test('successful backjump to conflicting description', () async {
var otherServer = await PackageServer.start((builder) {
builder.serve('a', '1.0.0');
});
await servePackages((builder) {
builder.serve('a', '1.0.0');
builder.serve('b', '1.0.0', deps: {'a': 'any'});
builder.serve('b', '2.0.0', deps: {
'a': {
'hosted': {'name': 'a', 'url': otherServer.url}
}
});
builder.serve('c', '1.0.0');
builder.serve('c', '2.0.0');
builder.serve('c', '3.0.0');
builder.serve('c', '4.0.0');
builder.serve('c', '5.0.0');
});
await d.appDir({'a': 'any', 'b': 'any', 'c': 'any'}).create();
await expectResolves(result: {'a': '1.0.0', 'b': '1.0.0', 'c': '5.0.0'});
});
// Similar to the above two tests but where there is no solution. It should
// fail in this case with no backtracking.
test('failing backjump to conflicting source', () async {
await d.dir('a', [d.libPubspec('a', '1.0.0')]).create();
await servePackages((builder) {
builder.serve('a', '1.0.0');
builder.serve('b', '1.0.0', deps: {
'a': {'path': p.join(d.sandbox, 'shared')}
});
builder.serve('c', '1.0.0');
builder.serve('c', '2.0.0');
builder.serve('c', '3.0.0');
builder.serve('c', '4.0.0');
builder.serve('c', '5.0.0');
});
await d.appDir({'a': 'any', 'b': 'any', 'c': 'any'}).create();
await expectResolves(
error: 'Incompatible dependencies on a:\n'
'- b 1.0.0 depends on it from source path\n'
'- myapp depends on it from source hosted');
});
test('failing backjump to conflicting description', () async {
var otherServer = await PackageServer.start((builder) {
builder.serve('a', '1.0.0');
});
await servePackages((builder) {
builder.serve('a', '1.0.0');
builder.serve('b', '1.0.0', deps: {
'a': {
'hosted': {'name': 'a', 'url': otherServer.url}
}
});
builder.serve('c', '1.0.0');
builder.serve('c', '2.0.0');
builder.serve('c', '3.0.0');
builder.serve('c', '4.0.0');
builder.serve('c', '5.0.0');
});
await d.appDir({'a': 'any', 'b': 'any', 'c': 'any'}).create();
await expectResolves(
error: allOf([
contains('Incompatible dependencies on a:'),
contains('- b 1.0.0 depends on it with description'),
contains('- myapp depends on it with description "a"')
]));
});
// Dependencies are ordered so that packages with fewer versions are tried
// first. Here, there are two valid solutions (either a or b must be
// downgraded once). The chosen one depends on which dep is traversed first.
// Since b has fewer versions, it will be traversed first, which means a will
// come later. Since later selections are revised first, a gets downgraded.
test('traverse into package with fewer versions first', () async {
await servePackages((builder) {
builder.serve('a', '1.0.0', deps: {'c': 'any'});
builder.serve('a', '2.0.0', deps: {'c': 'any'});
builder.serve('a', '3.0.0', deps: {'c': 'any'});
builder.serve('a', '4.0.0', deps: {'c': 'any'});
builder.serve('a', '5.0.0', deps: {'c': '1.0.0'});
builder.serve('b', '1.0.0', deps: {'c': 'any'});
builder.serve('b', '2.0.0', deps: {'c': 'any'});
builder.serve('b', '3.0.0', deps: {'c': 'any'});
builder.serve('b', '4.0.0', deps: {'c': '2.0.0'});
builder.serve('c', '1.0.0');
builder.serve('c', '2.0.0');
});
await d.appDir({'a': 'any', 'b': 'any'}).create();
await expectResolves(result: {'a': '4.0.0', 'b': '4.0.0', 'c': '2.0.0'});
});
// This is similar to the above test. When getting the number of versions of
// a package to determine which to traverse first, versions that are
// disallowed by the root package's constraints should not be considered.
// Here, foo has more versions of bar in total (4), but fewer that meet
// myapp's constraints (only 2). There is no solution, but we will do less
// backtracking if foo is tested first.
test('take root package constraints into counting versions', () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', deps: {'none': '2.0.0'});
builder.serve('foo', '2.0.0', deps: {'none': '2.0.0'});
builder.serve('foo', '3.0.0', deps: {'none': '2.0.0'});
builder.serve('foo', '4.0.0', deps: {'none': '2.0.0'});
builder.serve('bar', '1.0.0');
builder.serve('bar', '2.0.0');
builder.serve('bar', '3.0.0');
builder.serve('none', '1.0.0');
});
await d.appDir({"foo": ">2.0.0", "bar": "any"}).create();
await expectResolves(
error: 'Package none has no versions that match 2.0.0 derived from:\n'
'- foo 3.0.0 depends on version 2.0.0',
tries: 2);
});
test('complex backtrack', () async {
await servePackages((builder) {
// This sets up a hundred versions of foo and bar, 0.0.0 through 9.9.0. Each
// version of foo depends on a baz with the same major version. Each version
// of bar depends on a baz with the same minor version. There is only one
// version of baz, 0.0.0, so only older versions of foo and bar will
// satisfy it.
builder.serve('baz', '0.0.0');
for (var i = 0; i < 10; i++) {
for (var j = 0; j < 10; j++) {
builder.serve('foo', '$i.$j.0', deps: {'baz': '$i.0.0'});
builder.serve('bar', '$i.$j.0', deps: {'baz': '0.$j.0'});
}
}
});
await d.appDir({'foo': 'any', 'bar': 'any'}).create();
await expectResolves(
result: {'foo': '0.9.0', 'bar': '9.0.0', 'baz': '0.0.0'}, tries: 10);
});
// If there's a disjoint constraint on a package, then selecting other
// versions of it is a waste of time: no possible versions can match. We need
// to jump past it to the most recent package that affected the constraint.
test('backjump past failed package on disjoint constraint', () async {
await servePackages((builder) {
builder.serve('a', '1.0.0', deps: {
'foo': 'any' // ok
});
builder.serve('a', '2.0.0', deps: {
'foo': '<1.0.0' // disjoint with myapp's constraint on foo
});
builder.serve('foo', '2.0.0');
builder.serve('foo', '2.0.1');
builder.serve('foo', '2.0.2');
builder.serve('foo', '2.0.3');
builder.serve('foo', '2.0.4');
});
await d.appDir({'a': 'any', 'foo': '>2.0.0'}).create();
await expectResolves(result: {'a': '1.0.0', 'foo': '2.0.4'});
});
// This is a regression test for #18666. It was possible for the solver to
// "forget" that a package had previously led to an error. In that case, it
// would backtrack over the failed package instead of trying different
// versions of it.
test("finds solution with less strict constraint", () async {
await servePackages((builder) {
builder.serve('a', '2.0.0');
builder.serve('a', '1.0.0');
builder.serve('b', '1.0.0', deps: {'a': '1.0.0'});
builder.serve('c', '1.0.0', deps: {'b': 'any'});
builder.serve('d', '2.0.0', deps: {'myapp': 'any'});
builder.serve('d', '1.0.0', deps: {'myapp': '<1.0.0'});
});
await d.appDir({"a": "any", "c": "any", "d": "any"}).create();
await expectResolves(
result: {'a': '1.0.0', 'b': '1.0.0', 'c': '1.0.0', 'd': '2.0.0'});
});
}
void dartSdkConstraint() {
test('root matches SDK', () async {
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'environment': {'sdk': '0.1.2+3'}
})
]).create();
await expectResolves(result: {});
});
test('root does not match SDK', () async {
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'environment': {'sdk': '0.0.0'}
})
]).create();
await expectResolves(
error: 'Package myapp requires SDK version 0.0.0 but the '
'current SDK is 0.1.2+3.');
});
test('dependency does not match SDK', () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
'environment': {'sdk': '0.0.0'}
});
});
await d.appDir({'foo': 'any'}).create();
await expectResolves(
error: 'Package foo requires SDK version 0.0.0 but the '
'current SDK is 0.1.2+3.');
});
test('transitive dependency does not match SDK', () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', deps: {'bar': 'any'});
builder.serve('bar', '1.0.0', pubspec: {
'environment': {'sdk': '0.0.0'}
});
});
await d.appDir({'foo': 'any'}).create();
await expectResolves(
error: 'Package bar requires SDK version 0.0.0 but the '
'current SDK is 0.1.2+3.');
});
test('selects a dependency version that allows the SDK', () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
'environment': {'sdk': '0.1.2+3'}
});
builder.serve('foo', '2.0.0', pubspec: {
'environment': {'sdk': '0.1.2+3'}
});
builder.serve('foo', '3.0.0', pubspec: {
'environment': {'sdk': '0.0.0'}
});
builder.serve('foo', '4.0.0', pubspec: {
'environment': {'sdk': '0.0.0'}
});
});
await d.appDir({'foo': 'any'}).create();
await expectResolves(result: {'foo': '2.0.0'});
});
test('selects a transitive dependency version that allows the SDK', () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', deps: {'bar': 'any'});
builder.serve('bar', '1.0.0', pubspec: {
'environment': {'sdk': '0.1.2+3'}
});
builder.serve('bar', '2.0.0', pubspec: {
'environment': {'sdk': '0.1.2+3'}
});
builder.serve('bar', '3.0.0', pubspec: {
'environment': {'sdk': '0.0.0'}
});
builder.serve('bar', '4.0.0', pubspec: {
'environment': {'sdk': '0.0.0'}
});
});
await d.appDir({'foo': 'any'}).create();
await expectResolves(result: {'foo': '1.0.0', 'bar': '2.0.0'});
});
test(
'selects a dependency version that allows a transitive '
'dependency that allows the SDK', () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', deps: {'bar': '1.0.0'});
builder.serve('foo', '2.0.0', deps: {'bar': '2.0.0'});
builder.serve('foo', '3.0.0', deps: {'bar': '3.0.0'});
builder.serve('foo', '4.0.0', deps: {'bar': '4.0.0'});
builder.serve('bar', '1.0.0', pubspec: {
'environment': {'sdk': '0.1.2+3'}
});
builder.serve('bar', '2.0.0', pubspec: {
'environment': {'sdk': '0.1.2+3'}
});
builder.serve('bar', '3.0.0', pubspec: {
'environment': {'sdk': '0.0.0'}
});
builder.serve('bar', '4.0.0', pubspec: {
'environment': {'sdk': '0.0.0'}
});
});
await d.appDir({'foo': 'any'}).create();
await expectResolves(result: {'foo': '2.0.0', 'bar': '2.0.0'}, tries: 3);
});
test('root package allows 2.0.0-dev by default', () async {
await d.dir(appPath, [
await d.pubspec({'name': 'myapp'})
]).create();
await expectResolves(
environment: {'_PUB_TEST_SDK_VERSION': '2.0.0-dev.99'});
});
test('root package allows 2.0.0 by default', () async {
await d.dir(appPath, [
await d.pubspec({'name': 'myapp'})
]).create();
await expectResolves(environment: {'_PUB_TEST_SDK_VERSION': '2.0.0'});
});
test('package deps allow 2.0.0-dev by default', () async {
await d.dir('foo', [
await d.pubspec({'name': 'foo'})
]).create();
await d.dir('bar', [
await d.pubspec({'name': 'bar'})
]).create();
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'dependencies': {
'foo': {'path': '../foo'},
'bar': {'path': '../bar'},
}
})
]).create();
await expectResolves(
environment: {'_PUB_TEST_SDK_VERSION': '2.0.0-dev.99'},
// Log output should mention the PUB_ALLOW_RELEASE_SDK environment
// variable and mention the foo and bar packages specifically.
output: allOf(
contains('PUB_ALLOW_PRERELEASE_SDK'), anyOf(contains('bar, foo'))),
);
});
test(
"pub doesn't log about pre-release SDK overrides if "
"PUB_ALLOW_PRERELEASE_SDK=quiet", () async {
await d.dir('foo', [
await d.pubspec({'name': 'foo'})
]).create();
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'dependencies': {
'foo': {'path': '../foo'},
}
})
]).create();
await expectResolves(
environment: {
'_PUB_TEST_SDK_VERSION': '2.0.0-dev.99',
'PUB_ALLOW_PRERELEASE_SDK': 'quiet'
},
// Log output should not mention the PUB_ALLOW_RELEASE_SDK environment
// variable.
output: isNot(contains('PUB_ALLOW_PRERELEASE_SDK')),
);
});
test('package deps disallow 2.0.0-dev if PUB_ALLOW_PRERELEASE_SDK is false',
() async {
await d.dir('foo', [
await d.pubspec({'name': 'foo'})
]).create();
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'dependencies': {
'foo': {'path': '../foo'}
}
})
]).create();
await expectResolves(
environment: {
'_PUB_TEST_SDK_VERSION': '2.0.0-dev.99',
'PUB_ALLOW_PRERELEASE_SDK': 'false'
},
error: 'Package foo requires SDK version <2.0.0 but the '
'current SDK is 2.0.0-dev.99.');
});
test('package deps disallow 2.0.0 by default', () async {
await d.dir('foo', [
await d.pubspec({'name': 'foo'})
]).create();
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'dependencies': {
'foo': {'path': '../foo'}
}
})
]).create();
await expectResolves(
environment: {'_PUB_TEST_SDK_VERSION': '2.0.0'},
error: 'Package foo requires SDK version <2.0.0 but the '
'current SDK is 2.0.0.');
});
test("pre-release override requires major SDK versions to match", () async {
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'environment': {'sdk': '<2.2.3'}
})
]).create();
await expectResolves(
environment: {'_PUB_TEST_SDK_VERSION': '1.2.3-dev.1.0'},
output: isNot(contains('PUB_ALLOW_PRERELEASE_SDK')));
});
test("pre-release override requires minor SDK versions to match", () async {
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'environment': {'sdk': '<1.3.3'}
})
]).create();
await expectResolves(
environment: {'_PUB_TEST_SDK_VERSION': '1.2.3-dev.1.0'},
output: isNot(contains('PUB_ALLOW_PRERELEASE_SDK')));
});
test("pre-release override requires patch SDK versions to match", () async {
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'environment': {'sdk': '<1.2.4'}
})
]).create();
await expectResolves(
environment: {'_PUB_TEST_SDK_VERSION': '1.2.3-dev.1.0'},
output: isNot(contains('PUB_ALLOW_PRERELEASE_SDK')));
});
test("pre-release override requires exclusive max", () async {
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'environment': {'sdk': '<=1.2.3'}
})
]).create();
await expectResolves(
environment: {'_PUB_TEST_SDK_VERSION': '1.2.3-dev.1.0'},
output: isNot(contains('PUB_ALLOW_PRERELEASE_SDK')));
});
test("pre-release override requires pre-release SDK", () async {
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'environment': {'sdk': '<1.2.3'}
})
]).create();
await expectResolves(
environment: {'_PUB_TEST_SDK_VERSION': '1.2.3'},
error: 'Package myapp requires SDK version <1.2.3 but the current '
'SDK is 1.2.3.');
});
test("pre-release override requires no existing pre-release constraints",
() async {
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'environment': {'sdk': '<1.2.3-dev.2.0'}
})
]).create();
await expectResolves(
environment: {'_PUB_TEST_SDK_VERSION': '1.2.3-dev.1.0'},
output: isNot(contains('PUB_ALLOW_PRERELEASE_SDK')));
});
test("pre-release override requires no build release constraints", () async {
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'environment': {'sdk': '<1.2.3+1'}
})
]).create();
await expectResolves(
environment: {'_PUB_TEST_SDK_VERSION': '1.2.3'},
output: isNot(contains('PUB_ALLOW_PRERELEASE_SDK')));
});
test("pre-release override works generally", () async {
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'environment': {'sdk': '<1.2.3'}
})
]).create();
await expectResolves(
environment: {'_PUB_TEST_SDK_VERSION': '1.2.3-dev.1.0'},
output: allOf(contains('PUB_ALLOW_PRERELEASE_SDK'),
contains('<=1.2.3-dev.1.0'), contains('myapp')));
});
}
void flutterSdkConstraint() {
group('without a Flutter SDK', () {
test('fails for the root package', () async {
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'environment': {'flutter': '1.2.3'}
})
]).create();
await expectResolves(
error: 'Package myapp requires the Flutter SDK, which is not '
'available.');
});
test('fails for a dependency', () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
'environment': {'flutter': '0.0.0'}
});
});
await d.appDir({'foo': 'any'}).create();
await expectResolves(
error: 'Package foo requires the Flutter SDK, which is not '
'available.');
});
test("chooses a version that doesn't need Flutter", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0');
builder.serve('foo', '2.0.0');
builder.serve('foo', '3.0.0', pubspec: {
'environment': {'flutter': '0.0.0'}
});
});
await d.appDir({'foo': 'any'}).create();
await expectResolves(result: {'foo': '2.0.0'});
});
test('fails even with a matching Dart SDK constraint', () async {
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'environment': {'dart': '0.1.2+3', 'flutter': '1.2.3'}
})
]).create();
await expectResolves(
error: 'Package myapp requires the Flutter SDK, which is not '
'available.');
});
});
group('with a Flutter SDK', () {
setUp(() {
return d.dir('flutter', [d.file('version', '1.2.3')]).create();
});
test('succeeds with a matching constraint', () async {
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'environment': {'flutter': 'any'}
})
]).create();
await expectResolves(
environment: {'FLUTTER_ROOT': p.join(d.sandbox, 'flutter')},
result: {});
});
test('fails with a non-matching constraint', () async {
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'environment': {'flutter': '>1.2.3'}
})
]).create();
await expectResolves(
environment: {'FLUTTER_ROOT': p.join(d.sandbox, 'flutter')},
error: 'Package myapp requires Flutter SDK version >1.2.3 but the '
'current SDK is 1.2.3.');
});
test('succeeds if both Flutter and Dart SDKs match', () async {
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'environment': {'sdk': '0.1.2+3', 'flutter': '1.2.3'}
})
]).create();
await expectResolves(
environment: {'FLUTTER_ROOT': p.join(d.sandbox, 'flutter')},
result: {});
});
test("fails if Flutter SDK doesn't match but Dart does", () async {
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'environment': {'sdk': '0.1.2+3', 'flutter': '>1.2.3'}
})
]).create();
await expectResolves(
environment: {'FLUTTER_ROOT': p.join(d.sandbox, 'flutter')},
error: 'Package myapp requires Flutter SDK version >1.2.3 but the '
'current SDK is 1.2.3.');
});
test("fails if Dart SDK doesn't match but Flutter does", () async {
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'environment': {'sdk': '>0.1.2+3', 'flutter': '1.2.3'}
})
]).create();
await expectResolves(
environment: {'FLUTTER_ROOT': p.join(d.sandbox, 'flutter')},
error: 'Package myapp requires SDK version >0.1.2+3 but the '
'current SDK is 0.1.2+3.');
});
test('selects the latest dependency with a matching constraint', () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
'environment': {'flutter': '^0.0.0'}
});
builder.serve('foo', '2.0.0', pubspec: {
'environment': {'flutter': '^1.0.0'}
});
builder.serve('foo', '3.0.0', pubspec: {
'environment': {'flutter': '^2.0.0'}
});
});
await d.appDir({'foo': 'any'}).create();
await expectResolves(
environment: {'FLUTTER_ROOT': p.join(d.sandbox, 'flutter')},
result: {'foo': '2.0.0'});
});
});
}
void prerelease() {
test('prefer stable versions over unstable', () async {
await servePackages((builder) {
builder.serve('a', '1.0.0');
builder.serve('a', '1.1.0-dev');
builder.serve('a', '2.0.0-dev');
builder.serve('a', '3.0.0-dev');
});
await d.appDir({'a': 'any'}).create();
await expectResolves(result: {'a': '1.0.0'});
});
test('use latest allowed prerelease if no stable versions match', () async {
await servePackages((builder) {
builder.serve('a', '1.0.0-dev');
builder.serve('a', '1.1.0-dev');
builder.serve('a', '1.9.0-dev');
builder.serve('a', '3.0.0');
});
await d.appDir({'a': '<2.0.0'}).create();
await expectResolves(result: {'a': '1.9.0-dev'});
});
test('use an earlier stable version on a < constraint', () async {
await servePackages((builder) {
builder.serve('a', '1.0.0');
builder.serve('a', '1.1.0');
builder.serve('a', '2.0.0-dev');
builder.serve('a', '2.0.0');
});
await d.appDir({'a': '<2.0.0'}).create();
await expectResolves(result: {'a': '1.1.0'});
});
test('prefer a stable version even if constraint mentions unstable',
() async {
await servePackages((builder) {
builder.serve('a', '1.0.0');
builder.serve('a', '1.1.0');
builder.serve('a', '2.0.0-dev');
builder.serve('a', '2.0.0');
});
await d.appDir({'a': '<=2.0.0-dev'}).create();
await expectResolves(result: {'a': '1.1.0'});
});
}
void override() {
test('chooses best version matching override constraint', () async {
await servePackages((builder) {
builder.serve('a', '1.0.0');
builder.serve('a', '2.0.0');
builder.serve('a', '3.0.0');
});
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'dependencies': {'a': 'any'},
'dependency_overrides': {'a': '<3.0.0'}
})
]).create();
await expectResolves(result: {'a': '2.0.0'});
});
test('uses override as dependency', () async {
await servePackages((builder) {
builder.serve('a', '1.0.0');
builder.serve('a', '2.0.0');
builder.serve('a', '3.0.0');
});
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'dependency_overrides': {'a': '<3.0.0'}
})
]).create();
await expectResolves(result: {'a': '2.0.0'});
});
test('ignores other constraints on overridden package', () async {
await servePackages((builder) {
builder.serve('a', '1.0.0');
builder.serve('a', '2.0.0');
builder.serve('a', '3.0.0');
builder.serve('b', '1.0.0', deps: {'a': '1.0.0'});
builder.serve('c', '1.0.0', deps: {'a': '3.0.0'});
});
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'dependencies': {'b': 'any', 'c': 'any'},
'dependency_overrides': {'a': '2.0.0'}
})
]).create();
await expectResolves(result: {'a': '2.0.0', 'b': '1.0.0', 'c': '1.0.0'});
});
test('backtracks on overidden package for its constraints', () async {
await servePackages((builder) {
builder.serve('a', '1.0.0', deps: {'shared': 'any'});
builder.serve('a', '2.0.0', deps: {'shared': '1.0.0'});
builder.serve('shared', '1.0.0');
builder.serve('shared', '2.0.0');
});
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'dependencies': {'shared': '2.0.0'},
'dependency_overrides': {'a': '<3.0.0'}
})
]).create();
await expectResolves(result: {'a': '1.0.0', 'shared': '2.0.0'});
});
test('override compatible with locked dependency', () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', deps: {'bar': '1.0.0'});
builder.serve('foo', '1.0.1', deps: {'bar': '1.0.1'});
builder.serve('foo', '1.0.2', deps: {'bar': '1.0.2'});
builder.serve('bar', '1.0.0');
builder.serve('bar', '1.0.1');
builder.serve('bar', '1.0.2');
});
await d.appDir({'foo': '1.0.1'}).create();
await expectResolves(result: {'foo': '1.0.1', 'bar': '1.0.1'});
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'dependency_overrides': {'foo': '<1.0.2'}
})
]).create();
await expectResolves(result: {'foo': '1.0.1', 'bar': '1.0.1'});
});
test('override incompatible with locked dependency', () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', deps: {'bar': '1.0.0'});
builder.serve('foo', '1.0.1', deps: {'bar': '1.0.1'});
builder.serve('foo', '1.0.2', deps: {'bar': '1.0.2'});
builder.serve('bar', '1.0.0');
builder.serve('bar', '1.0.1');
builder.serve('bar', '1.0.2');
});
await d.appDir({'foo': '1.0.1'}).create();
await expectResolves(result: {'foo': '1.0.1', 'bar': '1.0.1'});
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'dependency_overrides': {'foo': '>1.0.1'}
})
]).create();
await expectResolves(result: {'foo': '1.0.2', 'bar': '1.0.2'});
});
test('no version that matches override', () async {
await servePackages((builder) {
builder.serve('foo', '2.0.0');
builder.serve('foo', '2.1.3');
});
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'dependency_overrides': {'foo': '>=1.0.0 <2.0.0'}
})
]).create();
await expectResolves(
error: 'Package foo has no versions that match >=1.0.0 <2.0.0 derived '
'from:\n'
'- myapp depends on version >=1.0.0 <2.0.0');
});
test('overrides a bad source without error', () async {
await servePackages((builder) {
builder.serve('foo', '0.0.0');
});
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'dependencies': {
'foo': {'bad': 'any'}
},
'dependency_overrides': {'foo': 'any'}
})
]).create();
await expectResolves(result: {'foo': '0.0.0'});
});
test('overrides an unmatched root dependency', () async {
await servePackages((builder) {
builder.serve('foo', '0.0.0', deps: {'myapp': '1.0.0'});
});
await d.dir(appPath, [
await d.pubspec({
'name': 'myapp',
'version': '2.0.0',
'dependency_overrides': {'foo': 'any'}
})
]).create();
await expectResolves(result: {'foo': '0.0.0'});
});
}
void downgrade() {
test("downgrades a dependency to the lowest matching version", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0');
builder.serve('foo', '2.0.0-dev');
builder.serve('foo', '2.0.0');
builder.serve('foo', '2.1.0');
});
await d.appDir({'foo': '2.1.0'}).create();
await expectResolves(result: {'foo': '2.1.0'});
await d.appDir({'foo': '>=2.0.0 <3.0.0'}).create();
await expectResolves(result: {'foo': '2.0.0'}, downgrade: true);
});
test(
'use earliest allowed prerelease if no stable versions match '
'while downgrading', () async {
await servePackages((builder) {
builder.serve('a', '1.0.0');
builder.serve('a', '2.0.0-dev.1');
builder.serve('a', '2.0.0-dev.2');
builder.serve('a', '2.0.0-dev.3');
});
await d.appDir({'a': '>=2.0.0-dev.1 <3.0.0'}).create();
await expectResolves(result: {'a': '2.0.0-dev.1'}, downgrade: true);
});
}
void features() {
test("doesn't enable an opt-in feature by default", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
"features": {
"stuff": {
"default": false,
"dependencies": {'bar': '1.0.0'}
}
}
});
builder.serve('bar', '1.0.0');
});
await d.appDir({'foo': '1.0.0'}).create();
await expectResolves(result: {'foo': '1.0.0'});
});
test("enables an opt-out feature by default", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
"features": {
"stuff": {
"default": true,
"dependencies": {'bar': '1.0.0'}
}
}
});
builder.serve('bar', '1.0.0');
});
await d.appDir({'foo': '1.0.0'}).create();
await expectResolves(result: {'foo': '1.0.0', 'bar': '1.0.0'});
});
test("features are opt-out by default", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
"features": {
"stuff": {
"dependencies": {'bar': '1.0.0'}
}
}
});
builder.serve('bar', '1.0.0');
});
await d.appDir({'foo': '1.0.0'}).create();
await expectResolves(result: {'foo': '1.0.0', 'bar': '1.0.0'});
});
test("enables an opt-in feature if it's required", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
"features": {
"stuff": {
"default": false,
"dependencies": {'bar': '1.0.0'}
}
}
});
builder.serve('bar', '1.0.0');
});
await d.appDir({
'foo': {
'version': '1.0.0',
'features': {'stuff': true}
}
}).create();
await expectResolves(result: {'foo': '1.0.0', 'bar': '1.0.0'});
});
test("doesn't enable an opt-out feature if it's disabled", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
"features": {
"stuff": {
"dependencies": {'bar': '1.0.0'}
}
}
});
builder.serve('bar', '1.0.0');
});
await d.appDir({
'foo': {
'version': '1.0.0',
'features': {'stuff': false}
}
}).create();
await expectResolves(result: {'foo': '1.0.0'});
});
test("opting in takes precedence over opting out", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
"features": {
"stuff": {
"dependencies": {'bar': '1.0.0'}
}
}
});
builder.serve('bar', '1.0.0');
builder.serve('baz', '1.0.0', deps: {
'foo': {
'version': '1.0.0',
'features': {'stuff': true}
}
});
});
await d.appDir({
'foo': {
'version': '1.0.0',
'features': {'stuff': false}
},
'baz': '1.0.0'
}).create();
await expectResolves(
result: {'foo': '1.0.0', 'bar': '1.0.0', 'baz': '1.0.0'});
});
test("implicitly opting in takes precedence over opting out", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
"features": {
"stuff": {
"dependencies": {'bar': '1.0.0'}
}
}
});
builder.serve('bar', '1.0.0');
builder.serve('baz', '1.0.0', deps: {
'foo': {
'version': '1.0.0',
}
});
});
await d.appDir({
'foo': {
'version': '1.0.0',
'features': {'stuff': false}
},
'baz': '1.0.0'
}).create();
await expectResolves(
result: {'foo': '1.0.0', 'bar': '1.0.0', 'baz': '1.0.0'});
});
test("doesn't select a version with an unavailable feature", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
"features": {
"stuff": {
"default": false,
"dependencies": {'bar': '1.0.0'}
}
}
});
builder.serve('foo', '1.1.0');
builder.serve('bar', '1.0.0');
});
await d.appDir({
'foo': {
'version': '1.0.0',
'features': {'stuff': true}
}
}).create();
await expectResolves(result: {'foo': '1.0.0', 'bar': '1.0.0'});
});
test("doesn't select a version with an incompatible feature", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
"features": {
"stuff": {
"default": false,
"dependencies": {'bar': '1.0.0'}
}
}
});
builder.serve('foo', '1.1.0', pubspec: {
"features": {
"stuff": {
"default": false,
"dependencies": {'bar': '2.0.0'}
}
}
});
builder.serve('bar', '1.0.0');
builder.serve('bar', '2.0.0');
});
await d.appDir({
'foo': {
'version': '^1.0.0',
'features': {'stuff': true}
},
'bar': '1.0.0'
}).create();
await expectResolves(result: {'foo': '1.0.0', 'bar': '1.0.0'});
});
test(
"backtracks if a feature is transitively incompatible with another "
"feature", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
'features': {
'stuff': {
'default': false,
'dependencies': {
'bar': {
'version': '1.0.0',
'features': {'stuff': false}
}
}
}
}
});
builder.serve('foo', '1.1.0', pubspec: {
'features': {
'stuff': {
'default': false,
'dependencies': {'bar': '1.0.0'}
}
}
});
builder.serve('bar', '1.0.0', pubspec: {
'features': {
'stuff': {
'dependencies': {'baz': '1.0.0'}
}
}
});
builder.serve('baz', '1.0.0');
builder.serve('baz', '2.0.0');
});
await d.appDir({
'foo': {
'version': '^1.0.0',
'features': {'stuff': true}
},
'baz': '2.0.0'
}).create();
await expectResolves(
result: {'foo': '1.0.0', 'bar': '1.0.0', 'baz': '2.0.0'}, tries: 2);
});
test("backtracks if a feature's dependencies are transitively incompatible",
() async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
"features": {
"stuff": {
"default": false,
"dependencies": {'bar': '1.0.0'}
}
}
});
builder.serve('foo', '1.1.0', pubspec: {
"features": {
"stuff": {
"default": false,
"dependencies": {'bar': '2.0.0'}
}
}
});
builder.serve('bar', '1.0.0', deps: {'baz': '1.0.0'});
builder.serve('bar', '2.0.0', deps: {'baz': '2.0.0'});
builder.serve('baz', '1.0.0');
builder.serve('baz', '2.0.0');
});
await d.appDir({
'foo': {
'version': '^1.0.0',
'features': {'stuff': true}
},
'baz': '1.0.0'
}).create();
await expectResolves(
result: {'foo': '1.0.0', 'bar': '1.0.0', 'baz': '1.0.0'}, tries: 2);
});
test("disables a feature when it backtracks", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', deps: {'myapp': '0.0.0'});
builder.serve('foo', '1.1.0', deps: {
// This is a transitively incompatible dependency with myapp, which will
// force the solver to backtrack and unselect foo 1.1.0.
'bar': '1.0.0',
'myapp': {
'version': '0.0.0',
'features': {'stuff': true}
}
});
builder.serve('bar', '1.0.0', deps: {'baz': '2.0.0'});
builder.serve('baz', '1.0.0');
builder.serve('baz', '2.0.0');
builder.serve('qux', '1.0.0');
});
await d.dir(appPath, [
d.pubspec({
'name': 'myapp',
'dependencies': {'foo': '^1.0.0', 'baz': '^1.0.0'},
'features': {
'stuff': {
'default': false,
'dependencies': {'qux': '1.0.0'}
}
}
})
]).create();
await expectResolves(result: {'foo': '1.0.0', 'baz': '1.0.0'}, tries: 2);
});
test("the root package's features are opt-out by default", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0');
builder.serve('bar', '1.0.0');
});
await d.dir(appPath, [
d.pubspec({
'name': 'myapp',
'dependencies': {'foo': '^1.0.0'},
'features': {
'stuff': {
'dependencies': {'bar': '1.0.0'}
}
}
})
]).create();
await expectResolves(result: {'foo': '1.0.0', 'bar': '1.0.0'});
});
test("the root package's features can be made opt-in", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0');
builder.serve('bar', '1.0.0');
});
await d.dir(appPath, [
d.pubspec({
'name': 'myapp',
'dependencies': {'foo': '^1.0.0'},
'features': {
'stuff': {
'default': false,
'dependencies': {'bar': '1.0.0'}
}
}
})
]).create();
await expectResolves(result: {'foo': '1.0.0'});
});
// We have to enable the root dependency's default-on features during the
// initial solve. If a dependency could later disable that feature, that would
// break the solver's guarantee that each new selected package monotonically
// increases the total number of dependencies.
test("the root package's features can't be disabled by dependencies",
() async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', deps: {
'myapp': {
'features': {'stuff': false}
}
});
builder.serve('bar', '1.0.0');
});
await d.dir(appPath, [
d.pubspec({
'name': 'myapp',
'dependencies': {'foo': '^1.0.0'},
'features': {
'stuff': {
'dependencies': {'bar': '1.0.0'}
}
}
})
]).create();
await expectResolves(result: {'foo': '1.0.0', 'bar': '1.0.0'});
});
test("the root package's features can be enabled by dependencies", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', deps: {
'myapp': {
'features': {'stuff': true}
}
});
builder.serve('bar', '1.0.0');
});
await d.dir(appPath, [
d.pubspec({
'name': 'myapp',
'dependencies': {'foo': '^1.0.0'},
'features': {
'stuff': {
'default': false,
'dependencies': {'bar': '1.0.0'}
}
}
})
]).create();
await expectResolves(result: {'foo': '1.0.0', 'bar': '1.0.0'});
});
test("resolution fails because a feature doesn't exist", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0');
});
await d.dir(appPath, [
d.pubspec({
'name': 'myapp',
'dependencies': {
'foo': {
'version': '^1.0.0',
'features': {'stuff': true}
}
}
})
]).create();
await expectResolves(
error: "foo 1.0.0 doesn't have a feature named stuff:\n"
"- myapp depends on version ^1.0.0 with stuff");
});
group('an "if available" dependency', () {
test("enables an opt-in feature", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
"features": {
"stuff": {
"default": false,
"dependencies": {'bar': '1.0.0'}
}
}
});
builder.serve('bar', '1.0.0');
});
await d.appDir({
'foo': {
'version': '1.0.0',
'features': {'stuff': 'if available'}
}
}).create();
await expectResolves(result: {'foo': '1.0.0', 'bar': '1.0.0'});
});
test("is compatible with a feature that doesn't exist", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0');
});
await d.appDir({
'foo': {
'version': '1.0.0',
'features': {'stuff': 'if available'}
}
}).create();
await expectResolves(result: {'foo': '1.0.0'});
});
});
group('with SDK constraints:', () {
setUp(() {
return d.dir('flutter', [d.file('version', '1.2.3')]).create();
});
group("succeeds when", () {
test("a Dart SDK constraint is matched", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
'features': {
'stuff': {
'environment': {'sdk': '^0.1.0'}
}
}
});
});
await d.dir(appPath, [
d.pubspec({
'name': 'myapp',
'dependencies': {'foo': '^1.0.0'}
})
]).create();
await expectResolves(result: {'foo': '1.0.0'});
});
test("a Flutter SDK constraint is matched", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
'features': {
'stuff': {
'environment': {'flutter': '^1.0.0'}
}
}
});
});
await d.dir(appPath, [
d.pubspec({
'name': 'myapp',
'dependencies': {'foo': '^1.0.0'}
})
]).create();
await expectResolves(
environment: {'FLUTTER_ROOT': p.join(d.sandbox, 'flutter')},
result: {'foo': '1.0.0'});
});
});
group("doesn't choose a version because", () {
test("a Dart SDK constraint isn't matched", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0');
builder.serve('foo', '1.1.0', pubspec: {
'features': {
'stuff': {
'environment': {'sdk': '0.0.1'}
}
}
});
});
await d.dir(appPath, [
d.pubspec({
'name': 'myapp',
'dependencies': {'foo': '^1.0.0'}
})
]).create();
await expectResolves(result: {'foo': '1.0.0'});
});
test("Flutter isn't available", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0');
builder.serve('foo', '1.1.0', pubspec: {
'features': {
'stuff': {
'environment': {'flutter': '1.0.0'}
}
}
});
});
await d.dir(appPath, [
d.pubspec({
'name': 'myapp',
'dependencies': {'foo': '^1.0.0'}
})
]).create();
await expectResolves(result: {'foo': '1.0.0'});
});
test("a Flutter SDK constraint isn't matched", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0');
builder.serve('foo', '1.1.0', pubspec: {
'features': {
'stuff': {
'environment': {'flutter': '^2.0.0'}
}
}
});
});
await d.dir(appPath, [
d.pubspec({
'name': 'myapp',
'dependencies': {'foo': '^1.0.0'}
})
]).create();
await expectResolves(
environment: {'FLUTTER_ROOT': p.join(d.sandbox, 'flutter')},
result: {'foo': '1.0.0'});
});
});
group("resolution fails because", () {
test("a Dart SDK constraint isn't matched", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
'features': {
'stuff': {
'environment': {'sdk': '0.0.1'}
}
}
});
});
await d.dir(appPath, [
d.pubspec({
'name': 'myapp',
'dependencies': {'foo': '^1.0.0'}
})
]).create();
await expectResolves(
error:
"Package foo feature stuff requires SDK version 0.0.1 but the "
"current SDK is 0.1.2+3.");
});
test("Flutter isn't available", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
'features': {
'stuff': {
'environment': {'flutter': '1.0.0'}
}
}
});
});
await d.dir(appPath, [
d.pubspec({
'name': 'myapp',
'dependencies': {'foo': '^1.0.0'}
})
]).create();
await expectResolves(
error: "Package foo feature stuff requires the Flutter SDK, which "
"is not available.");
});
test("a Flutter SDK constraint isn't matched", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
'features': {
'stuff': {
'environment': {'flutter': '^2.0.0'}
}
}
});
});
await d.dir(appPath, [
d.pubspec({
'name': 'myapp',
'dependencies': {'foo': '^1.0.0'}
})
]).create();
await expectResolves(
environment: {'FLUTTER_ROOT': p.join(d.sandbox, 'flutter')},
error: "Package foo feature stuff requires Flutter SDK version "
"^2.0.0 but the current SDK is 1.2.3.");
});
});
});
group("with overlapping dependencies", () {
test("can enable extra features", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
"dependencies": {'bar': '1.0.0'},
"features": {
"stuff": {
"default": false,
"dependencies": {
'bar': {
'features': {'stuff': true}
}
}
}
}
});
builder.serve('bar', '1.0.0', pubspec: {
"features": {
"stuff": {
"default": false,
"dependencies": {'baz': '1.0.0'}
}
}
});
builder.serve('baz', '1.0.0');
});
await d.appDir({
'foo': {'version': '1.0.0'}
}).create();
await expectResolves(result: {'foo': '1.0.0', 'bar': '1.0.0'});
await d.appDir({
'foo': {
'version': '1.0.0',
'features': {'stuff': true}
}
}).create();
await expectResolves(
result: {'foo': '1.0.0', 'bar': '1.0.0', 'baz': '1.0.0'});
});
test("can't disable features", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
"dependencies": {
'bar': {
'version': '1.0.0',
'features': {'stuff': false}
},
},
"features": {
"stuff": {
"default": false,
"dependencies": {
'bar': {
'features': {'stuff': true}
}
}
}
}
});
builder.serve('bar', '1.0.0', pubspec: {
"features": {
"stuff": {
"default": true,
"dependencies": {'baz': '1.0.0'}
}
}
});
builder.serve('baz', '1.0.0');
});
await d.appDir({
'foo': {
'version': '1.0.0',
'features': {'stuff': true}
}
}).create();
await expectResolves(
result: {'foo': '1.0.0', 'bar': '1.0.0', 'baz': '1.0.0'});
});
});
group("with required features", () {
test("enables those features", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
"features": {
"main": {
"default": false,
"requires": ["required1", "required2"]
},
"required1": {
"default": false,
"dependencies": {'bar': '1.0.0'}
},
"required2": {
"default": true,
"dependencies": {'baz': '1.0.0'}
}
}
});
builder.serve('bar', '1.0.0');
builder.serve('baz', '1.0.0');
});
await d.appDir({
'foo': {
'version': '1.0.0',
'features': {'main': true}
}
}).create();
await expectResolves(
result: {'foo': '1.0.0', 'bar': '1.0.0', 'baz': '1.0.0'});
});
test("enables those features by default", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
"features": {
"main": {
"requires": ["required1", "required2"]
},
"required1": {
"default": false,
"dependencies": {'bar': '1.0.0'}
},
"required2": {
"default": true,
"dependencies": {'baz': '1.0.0'}
}
}
});
builder.serve('bar', '1.0.0');
builder.serve('baz', '1.0.0');
});
await d.appDir({'foo': '1.0.0'}).create();
await expectResolves(
result: {'foo': '1.0.0', 'bar': '1.0.0', 'baz': '1.0.0'});
});
test("doesn't enable those features if it's disabled", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
"features": {
"main": {
"requires": ["required"]
},
"required": {
"default": false,
"dependencies": {'bar': '1.0.0'}
}
}
});
builder.serve('bar', '1.0.0');
});
await d.appDir({
'foo': {
'version': '1.0.0',
'features': {'main': false}
}
}).create();
await expectResolves(result: {'foo': '1.0.0'});
});
test("enables those features even if they'd otherwise be disabled",
() async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
"features": {
"main": {
"requires": ["required"]
},
"required": {
"default": false,
"dependencies": {'bar': '1.0.0'}
}
}
});
builder.serve('bar', '1.0.0');
});
await d.appDir({
'foo': {
'version': '1.0.0',
'features': {'main': true, 'required': false}
}
}).create();
await expectResolves(result: {'foo': '1.0.0', 'bar': '1.0.0'});
});
test("enables features transitively", () async {
await servePackages((builder) {
builder.serve('foo', '1.0.0', pubspec: {
"features": {
"main": {
"requires": ["required1"]
},
"required1": {
"default": false,
"requires": ["required2"]
},
"required2": {
"default": false,
"dependencies": {'bar': '1.0.0'}
}
}
});
builder.serve('bar', '1.0.0');
});
await d.appDir({
'foo': {
'version': '1.0.0',
'features': {'main': true}
}
}).create();
await expectResolves(result: {'foo': '1.0.0', 'bar': '1.0.0'});
});
});
}
/// Runs "pub get" and makes assertions about its results.
///
/// If [result] is passed, it's parsed as a pubspec-style dependency map, and
/// this asserts that the resulting lockfile matches those dependencies, and
/// that it contains only packages listed in [result].
///
/// If [error] is passed, this asserts that pub's error output matches the
/// value. It may be a String, a [RegExp], or a [Matcher].
///
/// If [output] is passed, this asserts that the results match. It may be a
/// [String], a [RegExp], or a [Matcher].
///
/// Asserts that version solving looks at exactly [tries] solutions. It defaults
/// to allowing only a single solution.
///
/// If [environment] is passed, it's added to the OS environment when running
/// pub.
///
/// If [downgrade] is `true`, this runs "pub downgrade" instead of "pub get".
Future expectResolves(
{Map result,
error,
output,
int tries,
Map<String, String> environment,
bool downgrade: false}) async {
await runPub(
args: [downgrade ? 'downgrade' : 'get'],
environment: environment,
output: output ??
(error == null
? anyOf(contains('Got dependencies!'),
matches(new RegExp(r'Changed \d+ dependenc(ies|y)!')))
: null),
error: error,
silent: contains('Tried ${tries ?? 1} solutions'),
exitCode: error == null ? 0 : 1);
if (result == null) return;
var registry = new SourceRegistry();
var lockFile =
new LockFile.load(p.join(d.sandbox, appPath, 'pubspec.lock'), registry);
var resultPubspec = new Pubspec.fromMap({"dependencies": result}, registry);
var ids = new Map.from(lockFile.packages);
for (var dep in resultPubspec.dependencies) {
expect(ids, contains(dep.name));
var id = ids.remove(dep.name);
if (dep.source is HostedSource && dep.description is String) {
// If the dep uses the default hosted source, grab it from the test
// package server rather than pub.dartlang.org.
dep = registry.hosted
.refFor(dep.name, url: globalPackageServer.url)
.withConstraint(dep.constraint);
}
expect(dep.allows(id), isTrue, reason: "Expected $id to match $dep.");
}
expect(ids, isEmpty, reason: "Expected no additional packages.");
}