public static async ValueTask NoTypes()
{
var discoverer = TestableTestFrameworkDiscoverer.Create();
await discoverer.Find();
Assert.Empty(discoverer.FindTestsForType_TestClasses);
}
public static async ValueTask RequestsPublicTypesFromAssembly()
{
var framework = TestableTestFrameworkDiscoverer.Create();
await framework.Find();
framework.AssemblyInfo.Received(1).GetTypes(includePrivateTypes: false);
}
public static async ValueTask GuardClauses()
{
var framework = TestableTestFrameworkDiscoverer.Create();
await Assert.ThrowsAsync <ArgumentNullException>("callback", () => framework.Find(callback: null !, discoveryOptions: _TestFrameworkOptions.ForDiscovery()));
await Assert.ThrowsAsync <ArgumentNullException>("discoveryOptions", () => framework.Find(callback: _ => new(true), discoveryOptions: null !));
}
public static async ValueTask ExcludesAbstractTypes()
{
var discoverer = TestableTestFrameworkDiscoverer.Create();
await discoverer.Find(types : new[] { typeof(AbstractClass) });
Assert.Empty(discoverer.FindTestsForType_TestClasses);
}
public static async ValueTask ExcludesAbstractTypes()
{
var abstractClassTypeInfo = Reflector.Wrap(typeof(AbstractClass));
var discoverer = TestableTestFrameworkDiscoverer.Create(abstractClassTypeInfo);
await discoverer.Find();
Assert.Empty(discoverer.FindTestsForType_TestClasses);
}
public static async ValueTask IncludesNonAbstractTypes()
{
var discoverer = TestableTestFrameworkDiscoverer.Create();
await discoverer.Find(types : new[] { typeof(object) });
var testClass = Assert.Single(discoverer.FindTestsForType_TestClasses);
Assert.Equal(typeof(object).FullName, testClass.Class.Name);
}
public async ValueTask CustomCultureViaDiscoveryOptions()
{
CultureInfo.CurrentCulture = CultureInfo.GetCultureInfo("en-US");
var discoverer = TestableTestFrameworkDiscoverer.Create(mockType);
var discoveryOptions = _TestFrameworkOptions.ForDiscovery(culture: "en-GB");
await discoverer.Find(discoveryOptions);
Assert.NotNull(discoverer.FindTestsForType_CurrentCulture);
Assert.Equal("en-GB", discoverer.FindTestsForType_CurrentCulture.Name);
}
public async ValueTask EmptyStringIsInvariantCulture()
{
CultureInfo.CurrentCulture = CultureInfo.GetCultureInfo("en-US");
var discoverer = TestableTestFrameworkDiscoverer.Create(mockType);
var discoveryOptions = _TestFrameworkOptions.ForDiscovery(culture: string.Empty);
await discoverer.Find(discoveryOptions);
Assert.NotNull(discoverer.FindTestsForType_CurrentCulture);
Assert.Equal(string.Empty, discoverer.FindTestsForType_CurrentCulture.Name);
}
public async void TestContextVisibility()
{
var mockType = Mocks.TypeInfo("MockType");
var discoverer = TestableTestFrameworkDiscoverer.Create(mockType);
await discoverer.Find();
var context = discoverer.FindTestsForType_Context;
Assert.NotNull(context);
Assert.Equal(TestEngineStatus.Discovering, context.TestAssemblyStatus);
Assert.Equal(TestPipelineStage.Discovery, context.PipelineStage);
}
public static async ValueTask IncludesNonAbstractTypes()
{
var objectTypeInfo = Reflector.Wrap(typeof(object));
var intTypeInfo = Reflector.Wrap(typeof(int));
var discoverer = TestableTestFrameworkDiscoverer.Create(objectTypeInfo, intTypeInfo);
await discoverer.Find();
Assert.Collection(
discoverer.FindTestsForType_TestClasses.Select(c => c.Class.Name).OrderBy(x => x),
typeName => Assert.Equal(typeof(int).FullName, typeName), // System.Int32
typeName => Assert.Equal(typeof(object).FullName, typeName) // System.Object
);
}
public async ValueTask ExceptionDuringFindTestsForType_ReportsExceptionAsDiagnosticMessage()
{
var spy = SpyMessageSink.Capture();
TestContext.Current !.DiagnosticMessageSink = spy;
var mockType = Mocks.TypeInfo("MockType");
var discoverer = TestableTestFrameworkDiscoverer.Create(mockType);
discoverer.FindTestsForType_Exception = new DivideByZeroException();
await discoverer.Find();
var message = Assert.Single(spy.Messages.OfType <_DiagnosticMessage>());
Assert.StartsWith($"Exception during discovery:{Environment.NewLine}System.DivideByZeroException: Attempted to divide by zero.", message.Message);
}