public virtual void TestModifyOnUnmodifiable() { CharArraySet set = new CharArraySet(TEST_VERSION_CURRENT, 10, true); set.AddAll(TEST_STOP_WORDS); int size = set.size(); set = CharArraySet.UnmodifiableSet(set); assertEquals("Set size changed due to unmodifiableSet call", size, set.size()); string NOT_IN_SET = "SirGallahad"; assertFalse("Test String already exists in set", set.Contains(NOT_IN_SET)); try { set.add(NOT_IN_SET.ToCharArray()); fail("Modified unmodifiable set"); } catch (System.NotSupportedException) { // expected assertFalse("Test String has been added to unmodifiable set", set.contains(NOT_IN_SET)); assertEquals("Size of unmodifiable set has changed", size, set.size()); } try { set.add(NOT_IN_SET); fail("Modified unmodifiable set"); } catch (System.NotSupportedException) { // expected assertFalse("Test String has been added to unmodifiable set", set.contains(NOT_IN_SET)); assertEquals("Size of unmodifiable set has changed", size, set.size()); } try { set.add(new StringBuilder(NOT_IN_SET)); fail("Modified unmodifiable set"); } catch (System.NotSupportedException) { // expected assertFalse("Test String has been added to unmodifiable set", set.contains(NOT_IN_SET)); assertEquals("Size of unmodifiable set has changed", size, set.size()); } try { set.clear(); fail("Modified unmodifiable set"); } catch (System.NotSupportedException) { // expected assertFalse("Changed unmodifiable set", set.contains(NOT_IN_SET)); assertEquals("Size of unmodifiable set has changed", size, set.size()); } try { set.add(NOT_IN_SET); fail("Modified unmodifiable set"); } catch (System.NotSupportedException) { // expected assertFalse("Test String has been added to unmodifiable set", set.contains(NOT_IN_SET)); assertEquals("Size of unmodifiable set has changed", size, set.size()); } // NOTE: This results in a StackOverflow exception. Since this is not a public member of CharArraySet, // but an extension method for the test fixture (which apparently has a bug), this test is non-critical //// This test was changed in 3.1, as a contains() call on the given Collection using the "correct" iterator's //// current key (now a char[]) on a Set<String> would not hit any element of the CAS and therefor never call //// remove() on the iterator //try //{ // set.removeAll(new CharArraySet(TEST_VERSION_CURRENT, TEST_STOP_WORDS, true)); // fail("Modified unmodifiable set"); //} //catch (System.NotSupportedException) //{ // // expected // assertEquals("Size of unmodifiable set has changed", size, set.size()); //} #region Added for better .NET support // This test was added for .NET to check the Remove method, since the extension method // above fails to execute. try { set.Remove(new CharArraySet(TEST_VERSION_CURRENT, TEST_STOP_WORDS, true)); fail("Modified unmodifiable set"); } catch (System.NotSupportedException) { // expected assertEquals("Size of unmodifiable set has changed", size, set.size()); } #endregion try { set.retainAll(new CharArraySet(TEST_VERSION_CURRENT, new [] { NOT_IN_SET }, true)); fail("Modified unmodifiable set"); } catch (System.NotSupportedException) { // expected assertEquals("Size of unmodifiable set has changed", size, set.size()); } try { set.addAll(new[] { NOT_IN_SET }); fail("Modified unmodifiable set"); } catch (System.NotSupportedException) { // expected assertFalse("Test String has been added to unmodifiable set", set.contains(NOT_IN_SET)); } for (int i = 0; i < TEST_STOP_WORDS.Length; i++) { assertTrue(set.contains(TEST_STOP_WORDS[i])); } }