public async Task QueryAsync_WhenCalled_AssertGetLetterHeadsAsyncWasCalledOnCommonRepository()
{
QueryHandler sut = CreateSut();
await sut.QueryAsync(new EmptyQuery());
_commonRepositoryMock.Verify(m => m.GetLetterHeadsAsync(), Times.Once);
}
public async Task QueryAsync_WhenCalled_ReturnsLetterHeadCollectionFromCommonRepository()
{
IEnumerable <ILetterHead> letterHeadCollection = _fixture.CreateMany <ILetterHead>(_random.Next(5, 10)).ToList();
QueryHandler sut = CreateSut(letterHeadCollection);
IEnumerable <ILetterHead> result = await sut.QueryAsync(new EmptyQuery());
Assert.That(result, Is.EqualTo(letterHeadCollection));
}
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"));
}