public void does_not_throw_exception_when_same_command_is_added_multiple_times()
{
var sut = new DefaultCommandRegistry();
sut.Register(typeof(FooCommand));
sut.Register(typeof(FooCommand));
}
public void throws_exception_if_commands_with_same_name_are_added()
{
var firstCommand = typeof(FooCommand);
var secondCommand = typeof(BarCommand);
var sut = new DefaultCommandRegistry();
sut.Register("foo", firstCommand);
Assert.Throws <Exception>(() => sut.Register("foo", secondCommand));
}
public void throws_exception_if_command_is_not_a_real_command()
{
var invalidCommandType = typeof(string);
var sut = new DefaultCommandRegistry();
Assert.Throws <NotSupportedException>(() => sut.Register(invalidCommandType));
}
public void GetAll_returns_expected_when_multiple_commands_are_added()
{
var sut = new DefaultCommandRegistry();
sut.Register(typeof(FooCommand));
sut.Register(typeof(BarCommand));
var result = sut
.GetAll()
.Select(x => x.ImplementationType)
.ToArray();
Assert.Equal(new[]
{
typeof(FooCommand),
typeof(BarCommand),
}, result);
}
public void registers_with_expected_command_name(Type commandType, string expectedCommandName)
{
var sut = new DefaultCommandRegistry();
sut.Register(commandType);
var result = sut.GetAll().Single();
Assert.Equal(expectedCommandName, result.CommandName);
}
public void favor_command_name_from_class_annotation()
{
var sut = new DefaultCommandRegistry();
sut.Register(typeof(NamedByClassAnnotationCommand));
var result = sut.GetAll().Single();
Assert.Equal("foo", result.CommandName);
}
public void Find_returns_expected_command_when_direct_match()
{
var expected = typeof(FooCommand);
var sut = new DefaultCommandRegistry();
sut.Register(expected);
var result = sut.Find("Foo");
Assert.Equal(expected, result);
}
public void Find_is_case_insensitive()
{
var expected = typeof(FooCommand);
var sut = new DefaultCommandRegistry();
sut.Register(expected);
var result = sut.Find("foo");
Assert.Equal(expected, result);
}
public void can_use_specific_command_name()
{
var expected = new CommandRegistration(
commandName: "anoterCommandName",
commandType: typeof(ICommand <EmptyArgument>),
argumentType: typeof(EmptyArgument),
implementationType: typeof(FooCommand)
);
var sut = new DefaultCommandRegistry();
var result = sut.Register(expected.CommandName, expected.ImplementationType);
Assert.Equal(expected, result);
}
public void can_use_custom_command_name_convention()
{
// arrange
var expectedCommandName = "another command name";
var sut = new DefaultCommandRegistry();
sut.ChangeCommandNameConvention(new StubCommandNameConvention(expectedCommandName));
// act
var result = sut.Register(typeof(FooCommand));
// assert
Assert.Equal(expectedCommandName, result.CommandName);
}
public void Register_returns_expected_command_registration()
{
var dummyCommand = typeof(FooCommand);
var sut = new DefaultCommandRegistry();
var result = sut.Register(dummyCommand);
var expected = new CommandRegistration(
commandName: "foo",
commandType: typeof(ICommand <EmptyArgument>),
argumentType: typeof(EmptyArgument),
implementationType: typeof(FooCommand)
);
Assert.Equal(expected, result);
}
public void can_add_multiple_commands_at_once()
{
var sut = new DefaultCommandRegistry();
sut.Register(new[]
{
typeof(FooCommand),
typeof(BarCommand),
});
var result = sut
.GetAll()
.Select(x => x.ImplementationType)
.ToArray();
Assert.Equal(new[]
{
typeof(FooCommand),
typeof(BarCommand),
}, result);
}
public void throws_exception_if_registering_a_type_with_multiple_command_implementations_3()
{
var sut = new DefaultCommandRegistry();
Assert.Throws <NotSupportedException>(() => sut.Register("dummyName", typeof(MultiArgumentCommand)));
}