public void testBiConditionalTransformation()
{
Sentence bic = (Sentence)parser.parse("(A <=> B)");
Sentence expected = (Sentence)parser
.parse("(((NOT A) OR B) AND ((NOT B) OR A)) ");
Sentence transformedBic = transformer.transform(bic);
Assert.AreEqual(expected.ToString(), transformedBic.ToString());
}