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sdk/pkg/path/test/posix_test.dart
T
nweiz@google.com bcdb64e20e Refactor pkg/path. 
This CL does several things:

* Splits lib/path.dart into multiple libraries.

* Renames "Builder" to "Context".

* Makes the Context API match the top-level functions ("root" was
  renamed to "current" and "resolve" was renamed to "absolute").

* The top-level "absolute" function now takes multiple parts, to match
  [Context.absolute].

R=rnystrom@google.com
BUG=14981

Review URL: https://codereview.chromium.org//62753005

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@30423 260f80e4-7a28-3924-810f-c04153c831b5
2013-11-19 20:48:45 +00:00

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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.
library path.test.posix_test;
import 'package:unittest/unittest.dart';
import 'package:path/path.dart' as path;
import 'utils.dart';
main() {
var context = new path.Context(
style: path.Style.posix, current: '/root/path');
test('separator', () {
expect(context.separator, '/');
});
test('extension', () {
expect(context.extension(''), '');
expect(context.extension('.'), '');
expect(context.extension('..'), '');
expect(context.extension('foo.dart'), '.dart');
expect(context.extension('foo.dart.js'), '.js');
expect(context.extension('a.b/c'), '');
expect(context.extension('a.b/c.d'), '.d');
expect(context.extension('~/.bashrc'), '');
expect(context.extension(r'a.b\c'), r'.b\c');
expect(context.extension('foo.dart/'), '.dart');
expect(context.extension('foo.dart//'), '.dart');
});
test('rootPrefix', () {
expect(context.rootPrefix(''), '');
expect(context.rootPrefix('a'), '');
expect(context.rootPrefix('a/b'), '');
expect(context.rootPrefix('/a/c'), '/');
expect(context.rootPrefix('/'), '/');
});
test('dirname', () {
expect(context.dirname(''), '.');
expect(context.dirname('.'), '.');
expect(context.dirname('..'), '.');
expect(context.dirname('../..'), '..');
expect(context.dirname('a'), '.');
expect(context.dirname('a/b'), 'a');
expect(context.dirname('a/b/c'), 'a/b');
expect(context.dirname('a/b.c'), 'a');
expect(context.dirname('a/'), '.');
expect(context.dirname('a/.'), 'a');
expect(context.dirname('a/..'), 'a');
expect(context.dirname(r'a\b/c'), r'a\b');
expect(context.dirname('/a'), '/');
expect(context.dirname('///a'), '/');
expect(context.dirname('/'), '/');
expect(context.dirname('///'), '/');
expect(context.dirname('a/b/'), 'a');
expect(context.dirname(r'a/b\c'), 'a');
expect(context.dirname('a//'), '.');
expect(context.dirname('a/b//'), 'a');
expect(context.dirname('a//b'), 'a');
});
test('basename', () {
expect(context.basename(''), '');
expect(context.basename('.'), '.');
expect(context.basename('..'), '..');
expect(context.basename('.foo'), '.foo');
expect(context.basename('a'), 'a');
expect(context.basename('a/b'), 'b');
expect(context.basename('a/b/c'), 'c');
expect(context.basename('a/b.c'), 'b.c');
expect(context.basename('a/'), 'a');
expect(context.basename('a/.'), '.');
expect(context.basename('a/..'), '..');
expect(context.basename(r'a\b/c'), 'c');
expect(context.basename('/a'), 'a');
expect(context.basename('/'), '/');
expect(context.basename('a/b/'), 'b');
expect(context.basename(r'a/b\c'), r'b\c');
expect(context.basename('a//'), 'a');
expect(context.basename('a/b//'), 'b');
expect(context.basename('a//b'), 'b');
});
test('basenameWithoutExtension', () {
expect(context.basenameWithoutExtension(''), '');
expect(context.basenameWithoutExtension('.'), '.');
expect(context.basenameWithoutExtension('..'), '..');
expect(context.basenameWithoutExtension('a'), 'a');
expect(context.basenameWithoutExtension('a/b'), 'b');
expect(context.basenameWithoutExtension('a/b/c'), 'c');
expect(context.basenameWithoutExtension('a/b.c'), 'b');
expect(context.basenameWithoutExtension('a/'), 'a');
expect(context.basenameWithoutExtension('a/.'), '.');
expect(context.basenameWithoutExtension(r'a/b\c'), r'b\c');
expect(context.basenameWithoutExtension('a/.bashrc'), '.bashrc');
expect(context.basenameWithoutExtension('a/b/c.d.e'), 'c.d');
expect(context.basenameWithoutExtension('a//'), 'a');
expect(context.basenameWithoutExtension('a/b//'), 'b');
expect(context.basenameWithoutExtension('a//b'), 'b');
expect(context.basenameWithoutExtension('a/b.c/'), 'b');
expect(context.basenameWithoutExtension('a/b.c//'), 'b');
expect(context.basenameWithoutExtension('a/b c.d e'), 'b c');
});
test('isAbsolute', () {
expect(context.isAbsolute(''), false);
expect(context.isAbsolute('a'), false);
expect(context.isAbsolute('a/b'), false);
expect(context.isAbsolute('/a'), true);
expect(context.isAbsolute('/a/b'), true);
expect(context.isAbsolute('~'), false);
expect(context.isAbsolute('.'), false);
expect(context.isAbsolute('..'), false);
expect(context.isAbsolute('.foo'), false);
expect(context.isAbsolute('../a'), false);
expect(context.isAbsolute('C:/a'), false);
expect(context.isAbsolute(r'C:\a'), false);
expect(context.isAbsolute(r'\\a'), false);
});
test('isRelative', () {
expect(context.isRelative(''), true);
expect(context.isRelative('a'), true);
expect(context.isRelative('a/b'), true);
expect(context.isRelative('/a'), false);
expect(context.isRelative('/a/b'), false);
expect(context.isRelative('~'), true);
expect(context.isRelative('.'), true);
expect(context.isRelative('..'), true);
expect(context.isRelative('.foo'), true);
expect(context.isRelative('../a'), true);
expect(context.isRelative('C:/a'), true);
expect(context.isRelative(r'C:\a'), true);
expect(context.isRelative(r'\\a'), true);
});
group('join', () {
test('allows up to eight parts', () {
expect(context.join('a'), 'a');
expect(context.join('a', 'b'), 'a/b');
expect(context.join('a', 'b', 'c'), 'a/b/c');
expect(context.join('a', 'b', 'c', 'd'), 'a/b/c/d');
expect(context.join('a', 'b', 'c', 'd', 'e'), 'a/b/c/d/e');
expect(context.join('a', 'b', 'c', 'd', 'e', 'f'), 'a/b/c/d/e/f');
expect(context.join('a', 'b', 'c', 'd', 'e', 'f', 'g'), 'a/b/c/d/e/f/g');
expect(context.join('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'),
'a/b/c/d/e/f/g/h');
});
test('does not add separator if a part ends in one', () {
expect(context.join('a/', 'b', 'c/', 'd'), 'a/b/c/d');
expect(context.join('a\\', 'b'), r'a\/b');
});
test('ignores parts before an absolute path', () {
expect(context.join('a', '/', 'b', 'c'), '/b/c');
expect(context.join('a', '/b', '/c', 'd'), '/c/d');
expect(context.join('a', r'c:\b', 'c', 'd'), r'a/c:\b/c/d');
expect(context.join('a', r'\\b', 'c', 'd'), r'a/\\b/c/d');
});
test('ignores trailing nulls', () {
expect(context.join('a', null), equals('a'));
expect(context.join('a', 'b', 'c', null, null), equals('a/b/c'));
});
test('ignores empty strings', () {
expect(context.join(''), '');
expect(context.join('', ''), '');
expect(context.join('', 'a'), 'a');
expect(context.join('a', '', 'b', '', '', '', 'c'), 'a/b/c');
expect(context.join('a', 'b', ''), 'a/b');
});
test('disallows intermediate nulls', () {
expect(() => context.join('a', null, 'b'), throwsArgumentError);
expect(() => context.join(null, 'a'), throwsArgumentError);
});
test('join does not modify internal ., .., or trailing separators', () {
expect(context.join('a/', 'b/c/'), 'a/b/c/');
expect(context.join('a/b/./c/..//', 'd/.././..//e/f//'),
'a/b/./c/..//d/.././..//e/f//');
expect(context.join('a/b', 'c/../../../..'), 'a/b/c/../../../..');
expect(context.join('a', 'b${context.separator}'), 'a/b/');
});
});
group('joinAll', () {
test('allows more than eight parts', () {
expect(context.joinAll(['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i']),
'a/b/c/d/e/f/g/h/i');
});
test('does not add separator if a part ends in one', () {
expect(context.joinAll(['a/', 'b', 'c/', 'd']), 'a/b/c/d');
expect(context.joinAll(['a\\', 'b']), r'a\/b');
});
test('ignores parts before an absolute path', () {
expect(context.joinAll(['a', '/', 'b', 'c']), '/b/c');
expect(context.joinAll(['a', '/b', '/c', 'd']), '/c/d');
expect(context.joinAll(['a', r'c:\b', 'c', 'd']), r'a/c:\b/c/d');
expect(context.joinAll(['a', r'\\b', 'c', 'd']), r'a/\\b/c/d');
});
});
group('split', () {
test('simple cases', () {
expect(context.split(''), []);
expect(context.split('.'), ['.']);
expect(context.split('..'), ['..']);
expect(context.split('foo'), equals(['foo']));
expect(context.split('foo/bar.txt'), equals(['foo', 'bar.txt']));
expect(context.split('foo/bar/baz'), equals(['foo', 'bar', 'baz']));
expect(context.split('foo/../bar/./baz'),
equals(['foo', '..', 'bar', '.', 'baz']));
expect(context.split('foo//bar///baz'), equals(['foo', 'bar', 'baz']));
expect(context.split('foo/\\/baz'), equals(['foo', '\\', 'baz']));
expect(context.split('.'), equals(['.']));
expect(context.split(''), equals([]));
expect(context.split('foo/'), equals(['foo']));
expect(context.split('//'), equals(['/']));
});
test('includes the root for absolute paths', () {
expect(context.split('/foo/bar/baz'), equals(['/', 'foo', 'bar', 'baz']));
expect(context.split('/'), equals(['/']));
});
});
group('normalize', () {
test('simple cases', () {
expect(context.normalize(''), '.');
expect(context.normalize('.'), '.');
expect(context.normalize('..'), '..');
expect(context.normalize('a'), 'a');
expect(context.normalize('/'), '/');
expect(context.normalize(r'\'), r'\');
expect(context.normalize('C:/'), 'C:');
expect(context.normalize(r'C:\'), r'C:\');
expect(context.normalize(r'\\'), r'\\');
expect(context.normalize('a/./\xc5\u0bf8-;\u{1f085}\u{00}/c/d/../'),
'a/\xc5\u0bf8-;\u{1f085}\u{00}/c');
});
test('collapses redundant separators', () {
expect(context.normalize(r'a/b/c'), r'a/b/c');
expect(context.normalize(r'a//b///c////d'), r'a/b/c/d');
});
test('does not collapse separators for other platform', () {
expect(context.normalize(r'a\\b\\\c'), r'a\\b\\\c');
});
test('eliminates "." parts', () {
expect(context.normalize('./'), '.');
expect(context.normalize('/.'), '/');
expect(context.normalize('/./'), '/');
expect(context.normalize('./.'), '.');
expect(context.normalize('a/./b'), 'a/b');
expect(context.normalize('a/.b/c'), 'a/.b/c');
expect(context.normalize('a/././b/./c'), 'a/b/c');
expect(context.normalize('././a'), 'a');
expect(context.normalize('a/./.'), 'a');
});
test('eliminates ".." parts', () {
expect(context.normalize('..'), '..');
expect(context.normalize('../'), '..');
expect(context.normalize('../../..'), '../../..');
expect(context.normalize('../../../'), '../../..');
expect(context.normalize('/..'), '/');
expect(context.normalize('/../../..'), '/');
expect(context.normalize('/../../../a'), '/a');
expect(context.normalize('c:/..'), '.');
expect(context.normalize('A:/../../..'), '../..');
expect(context.normalize('a/..'), '.');
expect(context.normalize('a/b/..'), 'a');
expect(context.normalize('a/../b'), 'b');
expect(context.normalize('a/./../b'), 'b');
expect(context.normalize('a/b/c/../../d/e/..'), 'a/d');
expect(context.normalize('a/b/../../../../c'), '../../c');
expect(context.normalize(r'z/a/b/../../..\../c'), r'z/..\../c');
expect(context.normalize(r'a/b\c/../d'), 'a/d');
});
test('does not walk before root on absolute paths', () {
expect(context.normalize('..'), '..');
expect(context.normalize('../'), '..');
expect(context.normalize('http://dartlang.org/..'), 'http:');
expect(context.normalize('http://dartlang.org/../../a'), 'a');
expect(context.normalize('file:///..'), '.');
expect(context.normalize('file:///../../a'), '../a');
expect(context.normalize('/..'), '/');
expect(context.normalize('a/..'), '.');
expect(context.normalize('../a'), '../a');
expect(context.normalize('/../a'), '/a');
expect(context.normalize('c:/../a'), 'a');
expect(context.normalize('/../a'), '/a');
expect(context.normalize('a/b/..'), 'a');
expect(context.normalize('../a/b/..'), '../a');
expect(context.normalize('a/../b'), 'b');
expect(context.normalize('a/./../b'), 'b');
expect(context.normalize('a/b/c/../../d/e/..'), 'a/d');
expect(context.normalize('a/b/../../../../c'), '../../c');
expect(context.normalize('a/b/c/../../..d/./.e/f././'), 'a/..d/.e/f.');
});
test('removes trailing separators', () {
expect(context.normalize('./'), '.');
expect(context.normalize('.//'), '.');
expect(context.normalize('a/'), 'a');
expect(context.normalize('a/b/'), 'a/b');
expect(context.normalize(r'a/b\'), r'a/b\');
expect(context.normalize('a/b///'), 'a/b');
});
});
group('relative', () {
group('from absolute root', () {
test('given absolute path in root', () {
expect(context.relative('/'), '../..');
expect(context.relative('/root'), '..');
expect(context.relative('/root/path'), '.');
expect(context.relative('/root/path/a'), 'a');
expect(context.relative('/root/path/a/b.txt'), 'a/b.txt');
expect(context.relative('/root/a/b.txt'), '../a/b.txt');
});
test('given absolute path outside of root', () {
expect(context.relative('/a/b'), '../../a/b');
expect(context.relative('/root/path/a'), 'a');
expect(context.relative('/root/path/a/b.txt'), 'a/b.txt');
expect(context.relative('/root/a/b.txt'), '../a/b.txt');
});
test('given relative path', () {
// The path is considered relative to the root, so it basically just
// normalizes.
expect(context.relative(''), '.');
expect(context.relative('.'), '.');
expect(context.relative('a'), 'a');
expect(context.relative('a/b.txt'), 'a/b.txt');
expect(context.relative('../a/b.txt'), '../a/b.txt');
expect(context.relative('a/./b/../c.txt'), 'a/c.txt');
});
// Regression
test('from root-only path', () {
expect(context.relative('/', from: '/'), '.');
expect(context.relative('/root/path', from: '/'), 'root/path');
});
});
group('from relative root', () {
var r = new path.Context(style: path.Style.posix, current: 'foo/bar');
test('given absolute path', () {
expect(r.relative('/'), equals('/'));
expect(r.relative('/a/b'), equals('/a/b'));
});
test('given relative path', () {
// The path is considered relative to the root, so it basically just
// normalizes.
expect(r.relative(''), '.');
expect(r.relative('.'), '.');
expect(r.relative('..'), '..');
expect(r.relative('a'), 'a');
expect(r.relative('a/b.txt'), 'a/b.txt');
expect(r.relative('../a/b.txt'), '../a/b.txt');
expect(r.relative('a/./b/../c.txt'), 'a/c.txt');
});
});
test('from a root with extension', () {
var r = new path.Context(style: path.Style.posix, current: '/dir.ext');
expect(r.relative('/dir.ext/file'), 'file');
});
test('with a root parameter', () {
expect(context.relative('/foo/bar/baz', from: '/foo/bar'), equals('baz'));
expect(context.relative('..', from: '/foo/bar'), equals('../../root'));
expect(context.relative('/foo/bar/baz', from: 'foo/bar'),
equals('../../../../foo/bar/baz'));
expect(context.relative('..', from: 'foo/bar'), equals('../../..'));
});
test('with a root parameter and a relative root', () {
var r = new path.Context(
style: path.Style.posix, current: 'relative/root');
expect(r.relative('/foo/bar/baz', from: '/foo/bar'), equals('baz'));
expect(() => r.relative('..', from: '/foo/bar'), throwsPathException);
expect(r.relative('/foo/bar/baz', from: 'foo/bar'),
equals('/foo/bar/baz'));
expect(r.relative('..', from: 'foo/bar'), equals('../../..'));
});
test('from a . root', () {
var r = new path.Context(style: path.Style.posix, current: '.');
expect(r.relative('/foo/bar/baz'), equals('/foo/bar/baz'));
expect(r.relative('foo/bar/baz'), equals('foo/bar/baz'));
});
});
group('isWithin', () {
test('simple cases', () {
expect(context.isWithin('foo/bar', 'foo/bar'), isFalse);
expect(context.isWithin('foo/bar', 'foo/bar/baz'), isTrue);
expect(context.isWithin('foo/bar', 'foo/baz'), isFalse);
expect(context.isWithin('foo/bar', '../path/foo/bar/baz'), isTrue);
expect(context.isWithin('/', '/foo/bar'), isTrue);
expect(context.isWithin('baz', '/root/path/baz/bang'), isTrue);
expect(context.isWithin('baz', '/root/path/bang/baz'), isFalse);
});
test('from a relative root', () {
var r = new path.Context(style: path.Style.posix, current: 'foo/bar');
expect(context.isWithin('.', 'a/b/c'), isTrue);
expect(context.isWithin('.', '../a/b/c'), isFalse);
expect(context.isWithin('.', '../../a/foo/b/c'), isFalse);
expect(context.isWithin('/', '/baz/bang'), isTrue);
expect(context.isWithin('.', '/baz/bang'), isFalse);
});
});
group('absolute', () {
test('allows up to seven parts', () {
expect(context.absolute('a'), '/root/path/a');
expect(context.absolute('a', 'b'), '/root/path/a/b');
expect(context.absolute('a', 'b', 'c'), '/root/path/a/b/c');
expect(context.absolute('a', 'b', 'c', 'd'), '/root/path/a/b/c/d');
expect(context.absolute('a', 'b', 'c', 'd', 'e'), '/root/path/a/b/c/d/e');
expect(context.absolute('a', 'b', 'c', 'd', 'e', 'f'),
'/root/path/a/b/c/d/e/f');
expect(context.absolute('a', 'b', 'c', 'd', 'e', 'f', 'g'),
'/root/path/a/b/c/d/e/f/g');
});
test('does not add separator if a part ends in one', () {
expect(context.absolute('a/', 'b', 'c/', 'd'), '/root/path/a/b/c/d');
expect(context.absolute(r'a\', 'b'), r'/root/path/a\/b');
});
test('ignores parts before an absolute path', () {
expect(context.absolute('a', '/b', '/c', 'd'), '/c/d');
expect(context.absolute('a', r'c:\b', 'c', 'd'),
r'/root/path/a/c:\b/c/d');
expect(context.absolute('a', r'\\b', 'c', 'd'), r'/root/path/a/\\b/c/d');
});
});
test('withoutExtension', () {
expect(context.withoutExtension(''), '');
expect(context.withoutExtension('a'), 'a');
expect(context.withoutExtension('.a'), '.a');
expect(context.withoutExtension('a.b'), 'a');
expect(context.withoutExtension('a/b.c'), 'a/b');
expect(context.withoutExtension('a/b.c.d'), 'a/b.c');
expect(context.withoutExtension('a/'), 'a/');
expect(context.withoutExtension('a/b/'), 'a/b/');
expect(context.withoutExtension('a/.'), 'a/.');
expect(context.withoutExtension('a/.b'), 'a/.b');
expect(context.withoutExtension('a.b/c'), 'a.b/c');
expect(context.withoutExtension(r'a.b\c'), r'a');
expect(context.withoutExtension(r'a/b\c'), r'a/b\c');
expect(context.withoutExtension(r'a/b\c.d'), r'a/b\c');
expect(context.withoutExtension('a/b.c/'), 'a/b/');
expect(context.withoutExtension('a/b.c//'), 'a/b//');
});
test('fromUri', () {
expect(context.fromUri(Uri.parse('file:///path/to/foo')), '/path/to/foo');
expect(context.fromUri(Uri.parse('file:///path/to/foo/')), '/path/to/foo/');
expect(context.fromUri(Uri.parse('file:///')), '/');
expect(context.fromUri(Uri.parse('foo/bar')), 'foo/bar');
expect(context.fromUri(Uri.parse('/path/to/foo')), '/path/to/foo');
expect(context.fromUri(Uri.parse('///path/to/foo')), '/path/to/foo');
expect(context.fromUri(Uri.parse('file:///path/to/foo%23bar')),
'/path/to/foo#bar');
expect(context.fromUri(Uri.parse('_%7B_%7D_%60_%5E_%20_%22_%25_')),
r'_{_}_`_^_ _"_%_');
expect(() => context.fromUri(Uri.parse('http://dartlang.org')),
throwsArgumentError);
});
test('toUri', () {
expect(context.toUri('/path/to/foo'), Uri.parse('file:///path/to/foo'));
expect(context.toUri('/path/to/foo/'), Uri.parse('file:///path/to/foo/'));
expect(context.toUri('/'), Uri.parse('file:///'));
expect(context.toUri('foo/bar'), Uri.parse('foo/bar'));
expect(context.toUri('/path/to/foo#bar'),
Uri.parse('file:///path/to/foo%23bar'));
expect(context.toUri(r'/_{_}_`_^_ _"_%_'),
Uri.parse('file:///_%7B_%7D_%60_%5E_%20_%22_%25_'));
expect(context.toUri(r'_{_}_`_^_ _"_%_'),
Uri.parse('_%7B_%7D_%60_%5E_%20_%22_%25_'));
});
}
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