public void QueryAsync_WhenQueryIsNull_ThrowsArgumentNullException()
{
QueryHandler sut = CreateSut();
ArgumentNullException result = Assert.ThrowsAsync <ArgumentNullException>(async() => await sut.QueryAsync(null));
Assert.That(result.ParamName, Is.EqualTo("query"));
}
public async Task QueryAsync_WhenCalled_AssertNumberWasCalledOnGetLetterHeadQuery()
{
QueryHandler sut = CreateSut();
Mock <IGetLetterHeadQuery> query = CreateQueryMock();
await sut.QueryAsync(query.Object);
query.Verify(m => m.Number, Times.Once);
}
public async Task QueryAsync_WhenCalled_ReturnsLetterHeadFromCommonRepository()
{
ILetterHead letterHead = _fixture.BuildLetterHeadMock().Object;
QueryHandler sut = CreateSut(letterHead);
IGetLetterHeadQuery query = CreateQueryMock().Object;
ILetterHead result = await sut.QueryAsync(query);
Assert.That(result, Is.EqualTo(letterHead));
}
public async Task QueryAsync_WhenCalled_AssertGetLetterHeadAsyncWasCalledOnCommonRepository()
{
QueryHandler sut = CreateSut();
int number = _fixture.Create <int>();
IGetLetterHeadQuery query = CreateQueryMock(number).Object;
await sut.QueryAsync(query);
_commonRepositoryMock.Verify(m => m.GetLetterHeadAsync(It.Is <int>(value => value == number)), Times.Once);
}
public async Task QueryAsync_WhenCalled_AssertValidateWasCalledOnGetLetterHeadQuery()
{
QueryHandler sut = CreateSut();
Mock <IGetLetterHeadQuery> queryMock = CreateQueryMock();
await sut.QueryAsync(queryMock.Object);
queryMock.Verify(m => m.Validate(
It.Is <IValidator>(value => value == _validatorMock.Object),
It.Is <ICommonRepository>(value => value == _commonRepositoryMock.Object)),
Times.Once);
}
