//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test void freeze()
internal virtual void Freeze()
{
_set.addAll(1, 2, 3, 100, 200, 300);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final org.eclipse.collections.api.set.primitive.LongSet frozen = set.freeze();
LongSet frozen = _set.freeze();
assertEquals(_set, frozen);
assertEquals(6, _set.size());
assertEquals(6, frozen.size());
_set.removeAll(1, 100);
assertNotEquals(_set, frozen);
assertEquals(4, _set.size());
assertEquals(6, frozen.size());
}