public virtual void TestCoreLabelSetWordBehavior()
{
CoreLabel foo = new CoreLabel();
foo.Set(typeof(CoreAnnotations.TextAnnotation), "foo");
foo.Set(typeof(CoreAnnotations.PartOfSpeechAnnotation), "B");
foo.Set(typeof(CoreAnnotations.LemmaAnnotation), "fool");
// Lemma gets removed with word
ArrayCoreMap copy = new ArrayCoreMap(foo);
NUnit.Framework.Assert.AreEqual(copy, foo);
foo.SetWord("foo");
NUnit.Framework.Assert.AreEqual(copy, foo);
// same word set
foo.SetWord("bar");
NUnit.Framework.Assert.IsFalse(copy.Equals(foo));
// lemma removed
foo.SetWord("foo");
NUnit.Framework.Assert.IsFalse(copy.Equals(foo));
// still removed
foo.Set(typeof(CoreAnnotations.LemmaAnnotation), "fool");
NUnit.Framework.Assert.AreEqual(copy, foo);
// back to normal
// Hash code is consistent
int hashCode = foo.GetHashCode();
NUnit.Framework.Assert.AreEqual(copy.GetHashCode(), hashCode);
foo.SetWord("bar");
NUnit.Framework.Assert.IsFalse(hashCode == foo.GetHashCode());
foo.SetWord("foo");
NUnit.Framework.Assert.IsFalse(hashCode == foo.GetHashCode());
// Hash code doesn't care between a value of null and the key not existing
NUnit.Framework.Assert.IsTrue(foo.Lemma() == null);
int lemmalessHashCode = foo.GetHashCode();
foo.Remove(typeof(CoreAnnotations.LemmaAnnotation));
NUnit.Framework.Assert.AreEqual(lemmalessHashCode, foo.GetHashCode());
foo.SetLemma(null);
NUnit.Framework.Assert.AreEqual(lemmalessHashCode, foo.GetHashCode());
foo.SetLemma("fool");
NUnit.Framework.Assert.AreEqual(hashCode, foo.GetHashCode());
// Check equals
foo.SetWord("bar");
foo.SetWord("foo");
ArrayCoreMap nulledCopy = new ArrayCoreMap(foo);
NUnit.Framework.Assert.AreEqual(nulledCopy, foo);
foo.Remove(typeof(CoreAnnotations.LemmaAnnotation));
NUnit.Framework.Assert.AreEqual(nulledCopy, foo);
}