public void DeleteArticleAsync_ArticleNameDoesNotExist_ReturnsError(string articleName) { //Arrange articlesAccessMock.Setup(x => x.DeleteArticleAsync(It.IsAny <string>())).ReturnsAsync(false); var expectedError = errorListProvider.GetError(ErrorCode.IE0002); //Act var messageResponse = articlesProvider.DeleteArticleAsync(articleName).Result; //Assert IsMessageFail(messageResponse, expectedError); }