public void ShouldntTriggerOnOperatorEquals()
{
var hint = new EnumerableEqualsHint();
var x = new[] { 3 };
var y = new[] { 3 };
Expression <Func <bool> > assertion = () => x == y;
var p = new ExpressionParser(assertion.Body);
string message;
Assert.IsFalse(hint.TryGetHint(p, assertion.Body, out message));
Assert.IsNull(message);
}
public void DoesntExplodeIfOneIsNull()
{
var hint = new EnumerableEqualsHint();
var x = new[] { 3 };
object y = null;
Expression <Func <bool> > assertion = () => x.Equals(y);
var p = new ExpressionParser(assertion.Body);
string message;
Assert.IsFalse(hint.TryGetHint(p, assertion.Body, out message));
Assert.IsNull(message);
}
public void ShouldTriggerOnSequenceEqualEnumerables()
{
var hint = new EnumerableEqualsHint();
var x = new[] { 3 };
var y = new[] { 3 };
Expression <Func <bool> > assertion = () => x.Equals(y);
var p = new ExpressionParser(assertion.Body);
string message;
Assert.IsTrue(hint.TryGetHint(p, assertion.Body, out message));
Assert.IsNotNull(message);
}
public void ShouldntTriggerForRandomMethodCalledEqualsEvenIfItSequenceEquals()
{
var hint = new EnumerableEqualsHint();
var x = new StupidClass();
var y = new[] { 3 };
Expression <Func <bool> > assertion = () => x.Equals(y);
var p = new ExpressionParser(assertion.Body);
string message;
Assert.IsFalse(hint.TryGetHint(p, assertion.Body, out message));
Assert.IsNull(message);
}