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packages/dart_style/test/io_test.dart

Index: packages/dart_style/test/io_test.dart
diff --git a/packages/dart_style/test/io_test.dart b/packages/dart_style/test/io_test.dart
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+++ b/packages/dart_style/test/io_test.dart
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+// 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 dart_style.test.io;
+
+import 'dart:async';
+import 'dart:io';
+
+import 'package:dart_style/src/io.dart';
+import 'package:path/path.dart' as p;
+import 'package:scheduled_test/descriptor.dart' as d;
+import 'package:scheduled_test/scheduled_test.dart';
+
+import 'package:dart_style/src/formatter_options.dart';
+
+import 'utils.dart';
+
+void main() {
+  setUpTestSuite();
+
+  var overwriteOptions = new FormatterOptions(OutputReporter.overwrite);
+
+  var followOptions =
+      new FormatterOptions(OutputReporter.overwrite, followLinks: true);
+
+  test('handles directory ending in ".dart"', () {
+    d.dir('code.dart', [d.file('a.dart', unformattedSource),]).create();
+
+    schedule(() {
+      var dir = new Directory(d.defaultRoot);
+      processDirectory(overwriteOptions, dir);
+    }, 'Run formatter.');
+
+    d.dir('code.dart', [d.file('a.dart', formattedSource)]).validate();
+  });
+
+  test("doesn't touch unchanged files", () {
+    d.dir('code', [
+      d.file('bad.dart', unformattedSource),
+      d.file('good.dart', formattedSource),
+    ]).create();
+
+    modTime(String file) {
+      return new File(p.join(d.defaultRoot, 'code', file)).statSync().modified;
+    }
+
+    var badBefore;
+    var goodBefore;
+
+    schedule(() {
+      badBefore = modTime('bad.dart');
+      goodBefore = modTime('good.dart');
+
+      // Wait a bit so the mod time of a formatted file will be different.
+      return new Future.delayed(new Duration(seconds: 1));
+    });
+
+    schedule(() {
+      var dir = new Directory(p.join(d.defaultRoot, 'code'));
+      processDirectory(overwriteOptions, dir);
+
+      // Should be touched.
+      var badAfter = modTime('bad.dart');
+      expect(badAfter, isNot(equals(badBefore)));
+
+      // Should not be touched.
+      var goodAfter = modTime('good.dart');
+      expect(goodAfter, equals(goodBefore));
+    });
+  });
+
+  test("skips subdirectories whose name starts with '.'", () {
+    d.dir('code', [
+      d.dir('.skip', [d.file('a.dart', unformattedSource)])
+    ]).create();
+
+    schedule(() {
+      var dir = new Directory(d.defaultRoot);
+      processDirectory(overwriteOptions, dir);
+    }, 'Run formatter.');
+
+    d.dir('code', [
+      d.dir('.skip', [d.file('a.dart', unformattedSource)])
+    ]).validate();
+  });
+
+  test("traverses the given directory even if its name starts with '.'", () {
+    d.dir('.code', [d.file('a.dart', unformattedSource)]).create();
+
+    schedule(() {
+      var dir = new Directory(p.join(d.defaultRoot, '.code'));
+      processDirectory(overwriteOptions, dir);
+    }, 'Run formatter.');
+
+    d.dir('.code', [d.file('a.dart', formattedSource)]).validate();
+  });
+
+  test("doesn't follow directory symlinks by default", () {
+    d.dir('code', [d.file('a.dart', unformattedSource),]).create();
+
+    d.dir('target_dir', [d.file('b.dart', unformattedSource),]).create();
+
+    schedule(() {
+      // Create a link to the target directory in the code directory.
+      new Link(p.join(d.defaultRoot, 'code', 'linked_dir'))
+          .createSync(p.join(d.defaultRoot, 'target_dir'));
+    }, 'Create symlinks.');
+
+    schedule(() {
+      var dir = new Directory(p.join(d.defaultRoot, 'code'));
+      processDirectory(overwriteOptions, dir);
+    }, 'Run formatter.');
+
+    d.dir('code', [
+      d.file('a.dart', formattedSource),
+      d.dir('linked_dir', [d.file('b.dart', unformattedSource),])
+    ]).validate();
+  });
+
+  test("follows directory symlinks when 'followLinks' is true", () {
+    d.dir('code', [d.file('a.dart', unformattedSource),]).create();
+
+    d.dir('target_dir', [d.file('b.dart', unformattedSource),]).create();
+
+    schedule(() {
+      // Create a link to the target directory in the code directory.
+      new Link(p.join(d.defaultRoot, 'code', 'linked_dir'))
+          .createSync(p.join(d.defaultRoot, 'target_dir'));
+    });
+
+    schedule(() {
+      var dir = new Directory(p.join(d.defaultRoot, 'code'));
+      processDirectory(followOptions, dir);
+    }, 'running formatter');
+
+    d.dir('code', [
+      d.file('a.dart', formattedSource),
+      d.dir('linked_dir', [d.file('b.dart', formattedSource),])
+    ]).validate();
+  });
+
+  if (!Platform.isWindows) {
+    test("doesn't follow file symlinks by default", () {
+      d.dir('code').create();
+      d.file('target_file.dart', unformattedSource).create();
+
+      schedule(() {
+        // Create a link to the target file in the code directory.
+        new Link(p.join(d.defaultRoot, 'code', 'linked_file.dart'))
+            .createSync(p.join(d.defaultRoot, 'target_file.dart'));
+      }, 'Create symlinks.');
+
+      schedule(() {
+        var dir = new Directory(p.join(d.defaultRoot, 'code'));
+        processDirectory(overwriteOptions, dir);
+      }, 'Run formatter.');
+
+      d.dir('code', [d.file('linked_file.dart', unformattedSource),])
+          .validate();
+    });
+
+    test("follows file symlinks when 'followLinks' is true", () {
+      d.dir('code').create();
+      d.file('target_file.dart', unformattedSource).create();
+
+      schedule(() {
+        // Create a link to the target file in the code directory.
+        new Link(p.join(d.defaultRoot, 'code', 'linked_file.dart'))
+            .createSync(p.join(d.defaultRoot, 'target_file.dart'));
+      });
+
+      schedule(() {
+        var dir = new Directory(p.join(d.defaultRoot, 'code'));
+        processDirectory(followOptions, dir);
+      }, 'running formatter');
+
+      d.dir('code', [d.file('linked_file.dart', formattedSource),]).validate();
+    });
+  }
+}