public void SelectsContains()
{
var spec = new Contains("value");
Assert.That(spec.IsSatisfiedBy("value"), Is.True);
Assert.That(spec.IsSatisfiedBy("ValuE"), Is.True);
Assert.That(spec.IsSatisfiedBy("avalue"), Is.True);
Assert.That(spec.IsSatisfiedBy("valuea"), Is.True);
Assert.That(spec.IsSatisfiedBy("val"), Is.False);
Assert.That(spec.IsSatisfiedBy(String.Empty), Is.False);
//Assert.That(spec.IsSatisfiedBy(null), Is.False);
}
public void ContainsCriteria()
{
var spec = new Contains("value", StringComparison.Ordinal);
var criteria = spec.Criteria;
Assert.That(criteria.Body, Is.AssignableTo<BinaryExpression>());
var binary = (BinaryExpression)criteria.Body;
Assert.That(binary.NodeType, Is.EqualTo(ExpressionType.GreaterThanOrEqual));
Assert.That(binary.Conversion, Is.Null);
Assert.That(binary.Method, Is.Null);
Assert.That(binary.IsLifted, Is.False);
Assert.That(binary.IsLiftedToNull, Is.False);
Assert.That(binary.Left, Is.AssignableTo<MethodCallExpression>());
Assert.That(binary.Right, Is.TypeOf<ConstantExpression>());
var left = (MethodCallExpression)binary.Left;
Assert.That(left.Arguments, Has.Count.EqualTo(2));
Assert.That(left.Arguments[0], Is.TypeOf<ConstantExpression>());
Assert.That(left.Arguments[1], Is.TypeOf<ConstantExpression>());
Assert.That(left.Method, Is.EqualTo(typeof(String).GetMethod("IndexOf", new[] { typeof(string), typeof(StringComparison) })));
Assert.That(left.Object, Is.AssignableTo<ParameterExpression>());
var arg0 = (ConstantExpression)left.Arguments[0];
Assert.That(arg0.Value, Is.EqualTo("value"));
var arg1 = (ConstantExpression)left.Arguments[1];
Assert.That(arg1.Value, Is.EqualTo(StringComparison.Ordinal));
var right = (ConstantExpression)binary.Right;
Assert.That(right.Value, Is.EqualTo(0));
ExpressionWriter.Write(criteria);
}
