public void when_null_assemblies()
{
var result = TypeInstantiator.ExportedInstancesFromAssemblies <IInterface>(null);
Assert.AreEqual(0, result.Instances.Count());
Assert.AreEqual(0, result.Exceptions.Count());
}
public void when_no_assemblies()
{
var assemblies = new Assembly[] {};
var result = TypeInstantiator.ExportedInstancesFromAssemblies <IInterface>(assemblies);
Assert.AreEqual(0, result.Instances.Count());
Assert.AreEqual(0, result.Exceptions.Count());
}
public void when_multiple_interfaces()
{
var assembly = GenerateAssembly(@"public class Foo : IInterface, IInterface2 {}");
var assemblies = new[] { assembly };
var result = TypeInstantiator.ExportedInstancesFromAssemblies <IInterface>(assemblies);
Assert.AreEqual(1, result.Instances.Count());
Assert.AreEqual(0, result.Exceptions.Count());
}
public void when_empty_assembly()
{
var assembly = GenerateAssembly(@"");
var assemblies = new[] { assembly };
var result = TypeInstantiator.ExportedInstancesFromAssemblies <IInterface>(assemblies);
Assert.AreEqual(0, result.Instances.Count());
Assert.AreEqual(0, result.Exceptions.Count());
}
public void when_constructor_throws_an_exception()
{
var assembly = GenerateAssembly(@"public class Foo : IInterface { public Foo() { throw new System.Exception(); } }");
var assemblies = new[] { assembly };
var result = TypeInstantiator.ExportedInstancesFromAssemblies <IInterface>(assemblies);
Assert.AreEqual(0, result.Instances.Count());
Assert.AreEqual(1, result.Exceptions.Count());
}
public void when_is_derived()
{
var assembly = GenerateAssembly(
@"public class Foo : IInterface {}
public class Bar : Foo {}");
var assemblies = new[] { assembly };
var result = TypeInstantiator.ExportedInstancesFromAssemblies <IInterface>(assemblies);
Assert.AreEqual(2, result.Instances.Count());
Assert.AreEqual(0, result.Exceptions.Count());
}
public void ShouldNotLoadPrivateNestedClass()
{
var assemblies = new[]
{
GenerateAssembly(@"public class Foo : IInterface {}"),
GenerateAssembly(@"public class Foo { private class Bar : IInterface {} }"),
};
var result = TypeInstantiator.ExportedInstancesFromAssemblies <IInterface>(assemblies);
Assert.AreEqual(1, result.Instances.Count());
Assert.AreEqual(0, result.Exceptions.Count());
}
public void when_nested_class()
{
var assemblies = new[]
{
GenerateAssembly(@"public class Foo : IInterface {}"),
GenerateAssembly(@"public class Foo { public class Bar : IInterface {} }"),
};
var result = TypeInstantiator.ExportedInstancesFromAssemblies <IInterface>(assemblies);
Assert.AreEqual(2, result.Instances.Count());
Assert.AreEqual(0, result.Exceptions.Count());
}
