public async void ShouldGetQuestionnaireViewModel()
{
//Arrange
var expectedTitle = "My expected quesitons";
Mock <IGetApiClient> mockGetApiClient = new Mock <IGetApiClient>();
var questionnaire = new QuestionnaireViewModel
{
QuestionnaireTitle = expectedTitle
};
mockGetApiClient.Setup(m => m.Get <QuestionnaireViewModel>(It.IsAny <string>()))
.ReturnsAsync(questionnaire);
var questionnaireService = new Questionnaire(mockGetApiClient.Object);
//Act
var result = (QuestionnaireViewModel)await questionnaireService.GetAsync();
//Assert
Assert.That(result.QuestionnaireTitle, Is.EqualTo(expectedTitle));
}