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// Copyright (c) 2013, 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.
//
// Test "relative" on all styles of path.Context, on all platforms.
import 'package:path/path.dart' as path;
import 'package:test/test.dart';
import 'utils.dart';
void main() {
relativeTest(path.Context(style: path.Style.posix, current: '.'), '/');
relativeTest(path.Context(style: path.Style.posix, current: '/'), '/');
relativeTest(
path.Context(style: path.Style.windows, current: r'd:\'),
r'c:\',
);
relativeTest(path.Context(style: path.Style.windows, current: '.'), r'c:\');
relativeTest(
path.Context(style: path.Style.url, current: 'file:///'),
'http://myserver/',
);
relativeTest(
path.Context(style: path.Style.url, current: '.'),
'http://myserver/',
);
relativeTest(path.Context(style: path.Style.url, current: 'file:///'), '/');
relativeTest(path.Context(style: path.Style.url, current: '.'), '/');
}
void relativeTest(path.Context context, String prefix) {
// Cases where the arguments are absolute paths.
void expectRelative(String result, String pathArg, String fromArg) {
test('relative $pathArg from $fromArg', () {
expect(
context.relative(pathArg, from: fromArg),
context.normalize(result),
);
});
}
group('${context.style}', () {
expectRelative('c/d', '${prefix}a/b/c/d', '${prefix}a/b');
expectRelative('c/d', '${prefix}a/b/c/d', '${prefix}a/b/');
expectRelative('.', '${prefix}a', '${prefix}a');
// Trailing slashes in the inputs have no effect.
expectRelative('../../z/x/y', '${prefix}a/b/z/x/y', '${prefix}a/b/c/d/');
expectRelative('../../z/x/y', '${prefix}a/b/z/x/y', '${prefix}a/b/c/d');
expectRelative('../../z/x/y', '${prefix}a/b/z/x/y/', '${prefix}a/b/c/d');
expectRelative('../../../z/x/y', '${prefix}z/x/y', '${prefix}a/b/c');
expectRelative('../../../z/x/y', '${prefix}z/x/y', '${prefix}a/b/c/');
// Cases where the arguments are relative paths.
expectRelative('c/d', 'a/b/c/d', 'a/b');
expectRelative('.', 'a/b/c', 'a/b/c');
expectRelative('.', 'a/d/../b/c', 'a/b/c/');
expectRelative('.', '', '');
expectRelative('.', '.', '');
expectRelative('.', '', '.');
expectRelative('.', '.', '.');
expectRelative('.', '..', '..');
expectRelative('a', 'a', '');
expectRelative('a', 'a', '.');
expectRelative('..', '.', 'a');
expectRelative('.', 'a/b/f/../c', 'a/e/../b/c');
expectRelative('d', 'a/b/f/../c/d', 'a/e/../b/c');
expectRelative('..', 'a/b/f/../c', 'a/e/../b/c/e/');
expectRelative('../..', '', 'a/b/');
expectRelative('../b/c/d', 'b/c/d/', 'a/');
expectRelative('../a/b/c', 'x/y/a//b/./f/../c', 'x//y/z');
// Case where from is an exact substring of path.
expectRelative('a/b', '${prefix}x/y//a/b', '${prefix}x/y/');
expectRelative('a/b', 'x/y//a/b', 'x/y/');
expectRelative('../ya/b', '${prefix}x/ya/b', '${prefix}x/y');
expectRelative('../ya/b', 'x/ya/b', 'x/y');
expectRelative('../b', 'x/y/../b', 'x/y/.');
expectRelative('a/b/c', 'x/y/a//b/./f/../c', 'x/y');
expectRelative('.', '${prefix}x/y//', '${prefix}x/y/');
expectRelative('.', '${prefix}x/y/', '${prefix}x/y');
if (context.current == '.') {
group('current directory', () {
// Should always throw - no relative path can be constructed.
test('throws', () {
expect(() => context.relative('.', from: '..'), throwsPathException);
expect(
() => context.relative('a/b', from: '../../d'),
throwsPathException,
);
expect(
() => context.relative('a/b', from: '${prefix}a/b'),
throwsPathException,
);
});
expectRelative('..', '..', '.');
expectRelative('../../..', '..', 'a/b/');
// absolute path relative from a relative path returns the absolute path
expectRelative('${prefix}a/b', '${prefix}a/b', 'c/d');
});
}
});
}