public void CreateInstanceReturnsNullWhenInstanceDoesNotImplementExpectedInterface()
{
TelemetryConfiguration configuration = new TelemetryConfiguration();
Type invalidType = typeof(object);
Assert.Null(TestableTelemetryConfigurationFactory.CreateInstance(typeof(ITelemetryInitializer), invalidType.AssemblyQualifiedName));
}
public void CreateInstanceReturnsInstanceOfTypeSpecifiedByTypeName()
{
Type type = typeof(StubTelemetryInitializer);
object instance = TestableTelemetryConfigurationFactory.CreateInstance(typeof(ITelemetryInitializer), type.AssemblyQualifiedName);
Assert.Equal(type, instance.GetType());
}
public void CreateInstanceThrowsInvalidOperationExceptionWhenTypeNameIsInvalidToHelpDeveloperIdentifyAndFixTheProblem()
{
var configuration = new TelemetryConfiguration();
var exception = Assert.Throws <InvalidOperationException>(
() => TestableTelemetryConfigurationFactory.CreateInstance(typeof(ITelemetryInitializer), "Invalid Type Name"));
Assert.Contains("Invalid Type Name", exception.Message, StringComparison.OrdinalIgnoreCase);
}
public void CreateInstanceThrowsInvalidOperationExceptionWhenInstanceDoesNotImplementExpectedInterfaceToHelpDeveloperIdentifyAndFixTheProblem()
{
var configuration = new TelemetryConfiguration();
Type invalidType = typeof(object);
var exception = Assert.Throws <InvalidOperationException>(
() => TestableTelemetryConfigurationFactory.CreateInstance(typeof(ITelemetryInitializer), invalidType.AssemblyQualifiedName));
Assert.Contains(invalidType.AssemblyQualifiedName, exception.Message, StringComparison.OrdinalIgnoreCase);
Assert.Contains(typeof(ITelemetryInitializer).Name, exception.Message, StringComparison.OrdinalIgnoreCase);
}
public void CreateInstanceThrowsInvalidOperationExceptionWhenTypeNameIsInvalidToHelpDeveloperIdentifyAndFixTheProblem()
{
Assert.Null(TestableTelemetryConfigurationFactory.CreateInstance(typeof(ITelemetryInitializer), "Invalid Type Name"));
}
public void CreateInstanceReturnsNullWhenTypeCannotBeFound()
{
Assert.Null(TestableTelemetryConfigurationFactory.CreateInstance(typeof(ITelemetryInitializer), "MissingType, MissingAssembly"));
}
