public void testKeySet()
{
FastMap <String, String> map = buildTestFastMap();
IEnumerable <String> expected = Sets.newHashSetWithExpectedSize(3);
expected.add("foo");
expected.add("baz");
expected.add("alpha");
Set <String> actual = map.keySet();
Assert.True(expected.containsAll(actual));
Assert.True(actual.containsAll(expected));
IEnumerable <String> it = actual.iterator();
while (it.hasNext())
{
String value = it.next();
if (!"baz".Equals(value))
{
it.remove();
}
}
Assert.True(map.containsKey("baz"));
Assert.False(map.containsKey("foo"));
Assert.False(map.containsKey("alpha"));
}