C# 6–Using static

So far I’ve never used the ‘using static’ directive introduced in C# 6. To simplify the assertions of my tests I created a static TestHelper:

	public static class TestHelper
	{
	public static Assembly ApplicationAssembly = typeof(ApplicationModule).Assembly;
	public static Assembly DomainAssembly = typeof(Order).Assembly;
	public static Assembly InfrastructureAssembly = typeof(InfrastructureModule).Assembly;
	public static void AssertFailingTypes(IEnumerable<Type> types)
	{
	Assert.True(types == null || types.Count() == 0);
	}
	public static void AssertArchTestResult(TestResult result)
	{
	AssertFailingTypes(result.FailingTypes);
	}
	}

view raw TestHelper.cs hosted with ❤ by GitHub

I’m using this TestHelper to simplify my NetArchTests(but more about that in another blog post).

Inside my tests I can now do the following:

	using Xunit;
	using static eShopExample.ArchitectureTests.TestHelper;
	namespace eShopExample.ArchitectureTests
	{
	public class LayersTests
	{
	[Fact]
	public void DomainLayer_DoesNotHaveDependency_ToApplicationLayer()
	{
	var result = Types.InAssembly(DomainAssembly)
	.Should()
	.NotHaveDependencyOn(ApplicationAssembly.GetName().Name)
	.GetResult();
	AssertArchTestResult(result);
	}
	}
	}

view raw LayersTests.cs hosted with ❤ by GitHub

Neat!