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]));
}
}
