Port dart:io Path tests to package:path.

pkg/path/test/windows_test.dart

 // 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.windows_test;
 
 import 'package:unittest/unittest.dart';
 import 'package:path/path.dart' as path;
 
 main() {
   var builder = new path.Builder(style: path.Style.windows,
                                  root: r'C:\root\path');
 
   if (new path.Builder().style == path.Style.windows) {
     group('absolute', () {
       expect(path.absolute(r'a\b.txt'), path.join(path.current, r'a\b.txt'));
       expect(path.absolute(r'C:\a\b.txt'), r'C:\a\b.txt');
       expect(path.absolute(r'\\a\b.txt'), r'\\a\b.txt');
     });
   }
 
   group('separator', () {
     expect(builder.separator, '\\');
   });
 
   test('extension', () {
     expect(builder.extension(''), '');
+    expect(builder.extension('.'), '');
+    expect(builder.extension('..'), '');
+    expect(builder.extension('a/..'), '');
     expect(builder.extension('foo.dart'), '.dart');
     expect(builder.extension('foo.dart.js'), '.js');
+    expect(builder.extension('foo bar\gule fisk.dart.js'), '.js');
     expect(builder.extension(r'a.b\c'), '');
     expect(builder.extension('a.b/c.d'), '.d');
     expect(builder.extension(r'~\.bashrc'), '');
     expect(builder.extension(r'a.b/c'), r'');
   });
 
   test('rootPrefix', () {
     expect(builder.rootPrefix(''), '');
     expect(builder.rootPrefix('a'), '');
     expect(builder.rootPrefix(r'a\b'), '');
@@ skipping 17 matching lines @@
     expect(builder.dirname(r'a\b/c'), r'a\b');
     expect(builder.dirname(r'C:\a'), r'C:\');
     expect(builder.dirname(r'C:\\\a'), r'C:\');
     expect(builder.dirname(r'C:\'), r'C:\');
     expect(builder.dirname(r'C:\\\'), r'C:\');
     expect(builder.dirname(r'a\b\'), r'a');
     expect(builder.dirname(r'a/b\c'), 'a/b');
     expect(builder.dirname(r'a\\'), r'.');
     expect(builder.dirname(r'a\b\\'), 'a');
     expect(builder.dirname(r'a\\b'), 'a');
+    expect(builder.dirname(r'foo bar\gule fisk'), 'foo bar');
   });
 
   test('basename', () {
     expect(builder.basename(r''), '');
+    expect(builder.basename(r'.'), '.');
+    expect(builder.basename(r'..'), '..');
+    expect(builder.basename(r'.hest'), '.hest');
     expect(builder.basename(r'a'), 'a');
     expect(builder.basename(r'a\b'), 'b');
     expect(builder.basename(r'a\b\c'), 'c');
     expect(builder.basename(r'a\b.c'), 'b.c');
     expect(builder.basename(r'a\'), 'a');
     expect(builder.basename(r'a/'), 'a');
     expect(builder.basename(r'a\.'), '.');
     expect(builder.basename(r'a\b/c'), r'c');
     expect(builder.basename(r'C:\a'), 'a');
     expect(builder.basename(r'C:\'), r'C:\');
     expect(builder.basename(r'a\b\'), 'b');
     expect(builder.basename(r'a/b\c'), 'c');
     expect(builder.basename(r'a\\'), 'a');
     expect(builder.basename(r'a\b\\'), 'b');
     expect(builder.basename(r'a\\b'), 'b');
+    expect(builder.basename(r'a\\b'), 'b');
+    expect(builder.basename(r'a\fisk hest.ma pa'), 'fisk hest.ma pa');
   });
 
   test('basenameWithoutExtension', () {
     expect(builder.basenameWithoutExtension(''), '');
+    expect(builder.basenameWithoutExtension('.'), '.');
+    expect(builder.basenameWithoutExtension('..'), '..');
+    expect(builder.basenameWithoutExtension('.hest'), '.hest');
     expect(builder.basenameWithoutExtension('a'), 'a');
     expect(builder.basenameWithoutExtension(r'a\b'), 'b');
     expect(builder.basenameWithoutExtension(r'a\b\c'), 'c');
     expect(builder.basenameWithoutExtension(r'a\b.c'), 'b');
     expect(builder.basenameWithoutExtension(r'a\'), 'a');
     expect(builder.basenameWithoutExtension(r'a\.'), '.');
     expect(builder.basenameWithoutExtension(r'a\b/c'), r'c');
     expect(builder.basenameWithoutExtension(r'a\.bashrc'), '.bashrc');
     expect(builder.basenameWithoutExtension(r'a\b\c.d.e'), 'c.d');
     expect(builder.basenameWithoutExtension(r'a\\'), 'a');
     expect(builder.basenameWithoutExtension(r'a\b\\'), 'b');
     expect(builder.basenameWithoutExtension(r'a\\b'), 'b');
     expect(builder.basenameWithoutExtension(r'a\b.c\'), 'b');
     expect(builder.basenameWithoutExtension(r'a\b.c\\'), 'b');
+    expect(builder.basenameWithoutExtension(r'C:\f h.ma pa.f s'), 'f h.ma pa');
   });
 
   test('isAbsolute', () {
     expect(builder.isAbsolute(''), false);
+    expect(builder.isAbsolute('.'), false);
+    expect(builder.isAbsolute('..'), false);
     expect(builder.isAbsolute('a'), false);
     expect(builder.isAbsolute(r'a\b'), false);
     expect(builder.isAbsolute(r'\a'), false);
     expect(builder.isAbsolute(r'\a\b'), false);
     expect(builder.isAbsolute('~'), false);
     expect(builder.isAbsolute('.'), false);
     expect(builder.isAbsolute(r'..\a'), false);
     expect(builder.isAbsolute(r'a:/a\b'), true);
     expect(builder.isAbsolute(r'D:/a/b'), true);
     expect(builder.isAbsolute(r'c:\'), true);
     expect(builder.isAbsolute(r'B:\'), true);
     expect(builder.isAbsolute(r'c:\a'), true);
     expect(builder.isAbsolute(r'C:\a'), true);
     expect(builder.isAbsolute(r'\\a'), true);
     expect(builder.isAbsolute(r'\\'), true);
   });
 
   test('isRelative', () {
     expect(builder.isRelative(''), true);
+    expect(builder.isRelative('.'), true);
+    expect(builder.isRelative('..'), true);
     expect(builder.isRelative('a'), true);
     expect(builder.isRelative(r'a\b'), true);
     expect(builder.isRelative(r'\a'), true);
     expect(builder.isRelative(r'\a\b'), true);
     expect(builder.isRelative('~'), true);
     expect(builder.isRelative('.'), true);
     expect(builder.isRelative(r'..\a'), true);
     expect(builder.isRelative(r'a:/a\b'), false);
     expect(builder.isRelative(r'D:/a/b'), false);
     expect(builder.isRelative(r'c:\'), false);
@@ skipping 40 matching lines @@
       expect(builder.join('', ''), '');
       expect(builder.join('', 'a'), 'a');
       expect(builder.join('a', '', 'b', '', '', '', 'c'), r'a\b\c');
       expect(builder.join('a', 'b', ''), r'a\b');
     });
 
     test('disallows intermediate nulls', () {
       expect(() => builder.join('a', null, 'b'), throwsArgumentError);
       expect(() => builder.join(null, 'a'), throwsArgumentError);
     });
+
+    test('join does not modify internal ., .., or trailing separators', () {
+      expect(builder.join('a/', 'b/c/'), 'a/b/c/');
+      expect(builder.join(r'a\b\./c\..\\', r'd\..\.\..\\e\f\\'),
+             r'a\b\./c\..\\d\..\.\..\\e\f\\');
+      expect(builder.join(r'a\b', r'c\..\..\..\..'), r'a\b\c\..\..\..\..');
+      expect(builder.join(r'a', 'b${builder.separator}'), r'a\b\');
+    });
   });
 
   group('joinAll', () {
     test('allows more than eight parts', () {
       expect(builder.joinAll(['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i']),
           r'a\b\c\d\e\f\g\h\i');
     });
 
     test('does not add separator if a part ends or begins in one', () {
       expect(builder.joinAll([r'a\', 'b', r'c\', 'd']), r'a\b\c\d');
@@ skipping 34 matching lines @@
 
       // TODO(nweiz): enable these once issue 7323 is fixed.
       // expect(builder.split(r'\\server\foo\bar\baz'),
       //     equals([r'\\server\', 'foo', 'bar', 'baz']));
       // expect(builder.split(r'\\server\'), equals([r'\\server\']));
     });
   });
 
   group('normalize', () {
     test('simple cases', () {
-      expect(builder.normalize(''), '');
+      expect(builder.normalize(''), '.');
       expect(builder.normalize('.'), '.');
       expect(builder.normalize('..'), '..');
       expect(builder.normalize('a'), 'a');
+      expect(builder.normalize(r'\'), '.');
+      expect(builder.normalize('/'), r'.');
       expect(builder.normalize('C:/'), r'C:\');
       expect(builder.normalize(r'C:\'), r'C:\');
       expect(builder.normalize(r'\\'), r'\\');
+      expect(builder.normalize('a\\.\\\xc5\u0bf8-;\u{1f085}\u{00}\\c\\d\\..\\'),
+             'a\\\xc5\u0bf8-;\u{1f085}\u{00}\x5cc');
     });
 
     test('collapses redundant separators', () {
       expect(builder.normalize(r'a\b\c'), r'a\b\c');
       expect(builder.normalize(r'a\\b\\\c\\\\d'), r'a\b\c\d');
     });
 
     test('eliminates "." parts', () {
       expect(builder.normalize(r'.\'), '.');
       expect(builder.normalize(r'c:\.'), r'c:\');
@@ skipping 13 matching lines @@
       expect(builder.normalize(r'..\'), '..');
       expect(builder.normalize(r'..\..\..'), r'..\..\..');
       expect(builder.normalize(r'../..\..\'), r'..\..\..');
       // TODO(rnystrom): Is this how Python handles absolute paths on Windows?
       expect(builder.normalize(r'\\..'), r'\\');
       expect(builder.normalize(r'\\..\..\..'), r'\\');
       expect(builder.normalize(r'\\..\../..\a'), r'\\a');
       expect(builder.normalize(r'c:\..'), r'c:\');
       expect(builder.normalize(r'A:/..\..\..'), r'A:\');
       expect(builder.normalize(r'b:\..\..\..\a'), r'b:\a');
+      expect(builder.normalize(r'b:\r\..\..\..\a\c\.\..'), r'b:\a');
       expect(builder.normalize(r'a\..'), '.');
+      expect(builder.normalize(r'..\a'), r'..\a');
+      expect(builder.normalize(r'c:\..\a'), r'c:\a');
+      // A path starting with '\' is not an absolute path on Windows.
+      expect(builder.normalize(r'\..\a'), r'..\a');
       expect(builder.normalize(r'a\b\..'), 'a');
+      expect(builder.normalize(r'..\a\b\..'), r'..\a');
       expect(builder.normalize(r'a\..\b'), 'b');
       expect(builder.normalize(r'a\.\..\b'), 'b');
       expect(builder.normalize(r'a\b\c\..\..\d\e\..'), r'a\d');
       expect(builder.normalize(r'a\b\..\..\..\..\c'), r'..\..\c');
+      expect(builder.normalize(r'a/b/c/../../..d/./.e/f././'), r'a\..d\.e\f.');
     });
 
     test('removes trailing separators', () {
       expect(builder.normalize(r'.\'), '.');
       expect(builder.normalize(r'.\\'), '.');
       expect(builder.normalize(r'a/'), 'a');
       expect(builder.normalize(r'a\b\'), r'a\b');
       expect(builder.normalize(r'a\b\\\'), r'a\b');
     });
 
@@ skipping 180 matching lines @@
         Uri.parse('file:///C:/path/to/foo/'));
     expect(builder.toUri(r'C:\'), Uri.parse('file:///C:/'));
     expect(builder.toUri(r'\\hostname\'), Uri.parse('file://hostname/'));
     expect(builder.toUri(r'foo\bar'), Uri.parse('foo/bar'));
     expect(builder.toUri(r'C:\path\to\foo#bar'),
         Uri.parse('file:///C:/path/to/foo%23bar'));
     expect(builder.toUri(r'\\hostname\path\to\foo#bar'),
         Uri.parse('file://hostname/path/to/foo%23bar'));
   });
 }