Lingo is an expressive and simple assertion library for your test code. It can be used alongside any testing framework you are already using.

var foo = "foobar";
Expect(foo).To.Contain("bar");

If you are using a test framework that allows you to inherit in your test classes, you can get a very clean syntax by extending the Lingo.Expectation class:

using Lingo;

[TestClass]
public class StringTest : Expectation
{
    [Test]
    public void ShouldOverloadPlus()
    {
        var concat = "foo" + "bar";
        Expect(concat).To.Equal("foobar");
    }
}

If you're using a test framework that doesn't like your test classes inheriting things (such as Visual Studio's built-in unit test project type) or if you prefer not to inherit for some reason, simply prefix your expectations with I.

using Lingo;

[TestClass]
public class StringTest
{
    [TestMethod]
    public void ShouldOverloadPlus()
    {
        var concat = "foo" + "bar";
        I.Expect(concat).To.Equal("foobar");
    }
}

Lingo has built-in support for:

• ints
• strings
• bools
• collections
• objects

Expect(new[] { "test" }).To.Contain("test");

All tests inherit the test methods of object tests like you would expect.

var meat = "ham";
var meatRef = meat;
Expect(meatRef).To.EqualRef(meat);

You can negate the expectation of any test by using the Not property.

var seattleWeather = "rainy";
Expect(seattleWeather).Not.To.Equal("sunny");

For full documentation, please visit the website.