unittest: testCases back to being UnmodifiableListView

pkg/unittest/lib/unittest.dart

 // 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.
 
 /**
  * A library for writing dart unit tests.
  *
  * To import this library, install the
  * [unittest package](http://pub.dartlang.org/packages/unittest) via the pub
  * package manager. See the [Getting Started](http://pub.dartlang.org/doc)
@@ skipping 183 matching lines @@
 
 /**
  * Description text of the current test group. If multiple groups are nested,
  * this will contain all of their text concatenated.
  */
 String _currentGroup = '';
 
 /** Separator used between group names and test names. */
 String groupSep = ' ';
 
-// TODO(nweiz): present an unmodifiable view of this once issue 8321 is fixed.
+final List<TestCase> _testCases = new List<TestCase>();
+
 /** Tests executed in this suite. */
-final List<TestCase> testCases = new List<TestCase>();
+final List<TestCase> testCases = new UnmodifiableListView<TestCase>(_testCases);
 
 /** Setup function called before each test in a group */
 Function _testSetup;
 
 /** Teardown function called after each test in a group */
 Function _testTeardown;
 
 int _currentTestCaseIndex = 0;
 
 /** [TestCase] currently being executed. */
@@ skipping 28 matching lines @@
  */
 Map testState = {};
 
 /**
  * Creates a new test case with the given description and body. The
  * description will include the descriptions of any surrounding group()
  * calls.
  */
 void test(String spec, TestFunction body) {
   ensureInitialized();
-  testCases.add(new TestCase._internal(testCases.length + 1, _fullSpec(spec),
-                                       body));
+  _testCases.add(new TestCase._internal(testCases.length + 1, _fullSpec(spec),
+                                        body));
 }
 
 /**
  * Creates a new test case with the given description and body. The
  * description will include the descriptions of any surrounding group()
  * calls.
  *
  * "solo_" means that this will be the only test that is run. All other tests
  * will be skipped. This is a convenience function to let you quickly isolate
  * a single test by adding "solo_" before it to temporarily disable all other
  * tests.
  */
 void solo_test(String spec, TestFunction body) {
   // TODO(rnystrom): Support multiple solos. If more than one test is solo-ed,
   // all of the solo-ed tests and none of the non-solo-ed ones should run.
   if (_soloTest != null) {
     throw new Exception('Only one test can be soloed right now.');
   }
 
   ensureInitialized();
 
-  _soloTest = new TestCase._internal(testCases.length + 1, _fullSpec(spec), body);
-  testCases.add(_soloTest);
+  _soloTest = new TestCase._internal(testCases.length + 1, _fullSpec(spec),
+                                     body);
+  _testCases.add(_soloTest);
 }
 
 /** Sentinel value for [_SpreadArgsHelper]. */
 class _Sentinel {
   const _Sentinel();
 }
 
 /** Simulates spread arguments using named arguments. */
 // TODO(sigmund): remove this class and simply use a closure with named
 // arguments (if still applicable).
@@ skipping 393 matching lines @@
 void filterTests(testFilter) {
   var filterFunction;
   if (testFilter is String) {
     RegExp re = new RegExp(testFilter);
     filterFunction = (t) => re.hasMatch(t.description);
   } else if (testFilter is RegExp) {
     filterFunction = (t) => testFilter.hasMatch(t.description);
   } else if (testFilter is Function) {
     filterFunction = testFilter;
   }
-  testCases.retainWhere(filterFunction);
+  _testCases.retainWhere(filterFunction);
 }
 
 /** Runs all queued tests, one at a time. */
 void runTests() {
   _ensureInitialized(false);
   _currentTestCaseIndex = 0;
   _currentGroup = '';
 
   // If we are soloing a test, remove all the others.
   if (_soloTest != null) {
@@ skipping 151 matching lines @@
 }
 
 /** Enable a test by ID. */
 void enableTest(int testId) => _setTestEnabledState(testId, true);
 
 /** Disable a test by ID. */
 void disableTest(int testId) => _setTestEnabledState(testId, false);
 
 /** Signature for a test function. */
 typedef dynamic TestFunction();