sdk/lib/_internal/pub/test/transformers_needed_by_transformers/no_dependencies_test.dart

// Copyright (c) 2014, 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.

library pub_tests;

import 'package:scheduled_test/scheduled_test.dart';

import '../descriptor.dart' as d;
import '../test_pub.dart';
import 'utils.dart';

void main() {
  initConfig();

  integration("reports no dependencies if no transformers are used", () {
    d.dir(appPath, [
      d.pubspec({
        "name": "myapp",
        "dependencies": {"foo": {"path": "../foo"}}
      })
    ]).create();

    d.dir("foo", [d.libPubspec("foo", "1.0.0")]).create();

    expectDependencies({});
  });

  integration("reports no dependencies if a transformer is used in a "
      "package that doesn't expose a transformer", () {
    d.dir(appPath, [
      d.pubspec({
        "name": "myapp",
        "dependencies": {"foo": {"path": "../foo"}},
        "transformers": ["foo"]
      })
    ]).create();

    d.dir("foo", [
      d.libPubspec("foo", "1.0.0"),
      d.dir("lib", [d.file("foo.dart", transformer())])
    ]).create();

    expectDependencies({"foo": []});
  });

  integration("reports no dependencies for non-file/package imports", () {
    d.dir(appPath, [
      d.pubspec({
        "name": "myapp",
        "dependencies": {"foo": {"path": "../foo"}},
        "transformers": ["myapp"]
      }),
      d.dir("lib", [
        d.file("myapp.dart", transformer([
          "dart:async",
          "http://dartlang.org/nonexistent.dart"
        ]))
      ])
    ]).create();

    d.dir("foo", [
      d.libPubspec("foo", "1.0.0"),
      d.dir("lib", [d.file("foo.dart", transformer())])
    ]).create();

    expectDependencies({"myapp": []});
  });

  integration("reports no dependencies for a single self transformer", () {
    d.dir(appPath, [
      d.pubspec({
        "name": "myapp",
        "transformers": ["myapp"]
      }),
      d.dir("lib", [d.file("myapp.dart", transformer())])
    ]).create();

    expectDependencies({"myapp": []});
  });

  integration("reports no dependencies if a transformer applies to files that "
      "aren't used by the exposed transformer", () {
    d.dir(appPath, [
      d.pubspec({
        "name": "myapp",
        "dependencies": {"foo": {"path": "../foo"}},
        "transformers": [
          {"foo": {"\$include": "lib/myapp.dart"}},
          {"foo": {"\$exclude": "lib/transformer.dart"}},
          "myapp"
        ]
      }),
      d.dir("lib", [
        d.file("myapp.dart", ""),
        d.file("transformer.dart", transformer())
      ])
    ]).create();

    d.dir("foo", [
      d.libPubspec("foo", "1.0.0"),
      d.dir("lib", [d.file("foo.dart", transformer())])
    ]).create();

    expectDependencies({"myapp": [], "foo": []});
  });

  integration("reports no dependencies if a transformer applies to a "
      "dependency's files that aren't used by the exposed transformer", () {
    d.dir(appPath, [
      d.pubspec({
        "name": "myapp",
        "dependencies": {"foo": {"path": "../foo"}},
        "transformers": ["myapp"]
      }),
      d.dir("lib", [
        d.file("myapp.dart", ""),
        d.file("transformer.dart", transformer(["package:foo/foo.dart"]))
      ])
    ]).create();

    d.dir("foo", [
      d.pubspec({
        "name": "foo",
        "version": "1.0.0",
        "transformers": [{"foo": {"\$exclude": "lib/foo.dart"}}]
      }),
      d.dir("lib", [
        d.file("foo.dart", ""),
        d.file("transformer.dart", transformer())
      ])
    ]).create();

    expectDependencies({'myapp': [], 'foo': []});
  });

  test("reports no dependencies on transformers in future phases", () {
    d.dir(appPath, [
      d.pubspec({
        "name": "myapp",
        "transformers": [
          {"myapp/first": {"\$include": "lib/myapp.dart"}},
          {"myapp/second": {"\$include": "lib/first.dart"}},
          {"myapp/third": {"\$include": "lib/second.dart"}}
        ]
      }),
      d.dir("lib", [
        d.file("myapp.dart", ""),
        d.file("first.dart", transformer()),
        d.file("second.dart", transformer()),
        d.file("third.dart", transformer())
      ])
    ]).create();

    expectDependencies({
      'myapp/first': [],
      'myapp/second': [],
      'myapp/third': []
    });
  });
}