public void OnNavigatedTo_WithoutParameters_ShouldCreateNewRecipe()
{
// Arrange
var expectedRecipe = new Recipe();
DatabaseServiceMock.Setup(databaseService => databaseService.GetRecipeAsync(Guid.Empty)).Verifiable();
// Act
EditRecipePageViewModel.OnNavigatedTo(null);
// Assert
DatabaseServiceMock.Verify(databaseService => databaseService.GetRecipeAsync(Guid.Empty), Times.Never, "Function IDatabaseService.GetRecipeASync for selected recipe called atleast once.");
Assert.AreEqual(expectedRecipe, EditRecipePageViewModel.Recipe, "Attribute EditRecipePageViewModel.Recipe is not the expected value.");
Assert.IsTrue(EditRecipePageViewModel.CreateMode, "Attribute EditRecipePageViewModel.CreateMode is false, but should be true.");
}
public void OnNavigatedTo_WithCorrectParameters_ShouldSetSelectedRecipe()
{
// Arrange
var parameters = new NavigationParameters
{
{ "SelectedRecipe", SelectedRecipe.Id }
};
DatabaseServiceMock.Setup(databaseService => databaseService.GetRecipeAsync(SelectedRecipe.Id)).Returns(Task.Run(() => SelectedRecipe));
// Act
EditRecipePageViewModel.OnNavigatedTo(parameters);
// Assert
DatabaseServiceMock.Verify(databaseService => databaseService.GetRecipeAsync(SelectedRecipe.Id), Times.Once, "Function IDatabaseService.GetRecipeAsync for selected recipe not called exactly once.");
Assert.AreEqual(SelectedRecipe, EditRecipePageViewModel.Recipe, "Attribute EditRecipePageViewModel.Recipe is not the expected value.");
Assert.IsFalse(EditRecipePageViewModel.CreateMode, "Attribute EditRecipePageViewModel.CreateMode is true, but should be false.");
}
public void OnNavigatedTo_WithIncorrectParameterName_ShouldCreateNewRecipe()
{
// Arrange
var expectedRecipe = new Recipe();
var parameters = new NavigationParameters
{
{ "SelectedRecipeId", SelectedRecipe.Id }
};
DatabaseServiceMock.Setup(databaseService => databaseService.GetRecipeAsync(SelectedRecipe.Id)).Returns(Task.Run(() => SelectedRecipe));
// Act
EditRecipePageViewModel.OnNavigatedTo(parameters);
// Assert
DatabaseServiceMock.Verify(databaseService => databaseService.GetRecipeAsync(SelectedRecipe.Id), Times.Never, "Function IDatabaseService.GetRecipeASync for selected recipe called atleast once.");
Assert.AreEqual(expectedRecipe, EditRecipePageViewModel.Recipe, "Attribute EditRecipePageViewModel.Recipe is not the expected value.");
Assert.IsTrue(EditRecipePageViewModel.CreateMode, "Attribute EditRecipePageViewModel.CreateMode is false, but should be true.");
}
public void OnNavigatedTo_WithInvalidDataTypeParameters_ShouldCreateNewRecipe()
{
// Arrange
var expectedRecipe = new Recipe();
var id = Fixture.Create <double>();
var parameters = new NavigationParameters
{
{ "SelectedRecipe", id }
};
DatabaseServiceMock.Setup(databaseService => databaseService.GetRecipeAsync(Guid.Empty)).Returns(() => null);
// Act
EditRecipePageViewModel.OnNavigatedTo(parameters);
// Assert
DatabaseServiceMock.Verify(databaseService => databaseService.GetRecipeAsync(Guid.Empty), Times.Never, "Function IDatabaseService.GetRecipeASync for selected recipe called atleast once.");
Assert.AreEqual(expectedRecipe, EditRecipePageViewModel.Recipe, "Attribute EditRecipePageViewModel.Recipe is not the expected value.");
Assert.IsTrue(EditRecipePageViewModel.CreateMode, "Attribute EditRecipePageViewModel.CreateMode is false, but should be true.");
}
