public void ProductionGetHashCodeShouldProduceSameValueForSameObject()
{
var production = new Production(new NonTerminal("Z"),
new CharacterTerminal('a'),
new NonTerminal("B"),
new SetTerminal('a','z'));
var hashCode = production.GetHashCode();
Assert.AreEqual(hashCode, production.GetHashCode());
}
public void ProductionGetHashCodeShouldProduceSameValueForSameRightHandSides()
{
var production1 = new Production(new NonTerminal("A"), new CharacterTerminal('a'), new NonTerminal("B"));
var production2 = new Production(new NonTerminal("A"), new CharacterTerminal('a'), new NonTerminal("B"));
Assert.AreEqual(production1.GetHashCode(), production2.GetHashCode());
}
public void ProductionGetHashCodeShouldProduceSameValueForEmptyProductionWithSameLeftHandSide()
{
var production1 = new Production(new NonTerminal("A"));
var production2 = new Production(new NonTerminal("A"));
Assert.AreEqual(production1.GetHashCode(), production2.GetHashCode());
}
public void ProductionGetHashCodeShouldNotProduceSameValueForDifferentLeftHandSides()
{
var production1 = new Production(new NonTerminal("A"));
var production2 = new Production(new NonTerminal("B"));
Assert.AreNotEqual(production1.GetHashCode(), production2.GetHashCode());
}