public void DefaultValues()
{
var sut = new CastExpression();
Assert.AreEqual(new VariableReference(), sut.Reference);
Assert.AreEqual(Names.UnknownType, sut.TargetType);
Assert.AreEqual(CastOperator.Unknown, sut.Operator);
Assert.AreNotEqual(0, sut.GetHashCode());
Assert.AreNotEqual(1, sut.GetHashCode());
}
public void TestCastExpressionEquals()
{
CastExpression first = new CastExpression()
{
ScalarExpression = new StringLiteral()
{
Value = "test"
},
ToType = "t"
};
CastExpression firstClone = new CastExpression()
{
ScalarExpression = new StringLiteral()
{
Value = "test"
},
ToType = "t"
};
CastExpression second = new CastExpression()
{
ScalarExpression = new StringLiteral()
{
Value = "test2"
},
ToType = "t"
};
CastExpression third = new CastExpression()
{
ScalarExpression = new StringLiteral()
{
Value = "test"
},
ToType = "t2"
};
//Equals
Assert.IsTrue(Equals(first, firstClone));
Assert.IsFalse(Equals(first, null));
Assert.IsFalse(Equals(first, second));
Assert.IsFalse(Equals(first, third));
Assert.IsFalse(Equals(first, "other type"));
//Hash code
Assert.AreEqual(first.GetHashCode(), firstClone.GetHashCode());
Assert.AreNotEqual(first.GetHashCode(), second.GetHashCode());
Assert.AreNotEqual(first.GetHashCode(), third.GetHashCode());
}
public void Equality_Default()
{
var a = new CastExpression();
var b = new CastExpression();
Assert.AreEqual(a, b);
Assert.AreEqual(a.GetHashCode(), b.GetHashCode());
}
public void Equality_DifferentTargetType()
{
var a = new CastExpression
{
TargetType = Names.Type("T,P")
};
var b = new CastExpression();
Assert.AreNotEqual(a, b);
Assert.AreNotEqual(a.GetHashCode(), b.GetHashCode());
}
public void Equality_DifferentOperation()
{
var a = new CastExpression
{
Operator = CastOperator.SafeCast
};
var b = new CastExpression();
Assert.AreNotEqual(a, b);
Assert.AreNotEqual(a.GetHashCode(), b.GetHashCode());
}
public void Equality_DifferentVarRef()
{
var a = new CastExpression
{
Reference = SomeVarRef("i")
};
var b = new CastExpression();
Assert.AreNotEqual(a, b);
Assert.AreNotEqual(a.GetHashCode(), b.GetHashCode());
}
public void Equality_ReallyTheSame()
{
var a = new CastExpression
{
TargetType = Names.Type("T,P"),
Reference = SomeVarRef(),
Operator = CastOperator.SafeCast
};
var b = new CastExpression
{
TargetType = Names.Type("T,P"),
Reference = SomeVarRef(),
Operator = CastOperator.SafeCast
};
Assert.AreEqual(a, b);
Assert.AreEqual(a.GetHashCode(), b.GetHashCode());
}
