public async Task GetRecipeIdsByAllergenIdsAsync_WithNonExistentAllergenIds_ShouldReturnEmptyCollection()
{
var errorMessagePrefix = "RecipeAllergenService GetRecipeIdsByAllergenIdsAsync() method does not work properly.";
// Arrange
MapperInitializer.InitializeMapper();
var context = ApplicationDbContextInMemoryFactory.InitializeContext();
var recipeAllergenRepository = new EfRepository <RecipeAllergen>(context);
var recipeAllergenService = new RecipeAllergenService(recipeAllergenRepository);
await this.SeedDataAsync(context);
var nonExistentAllergenIds = new List <int>()
{
10000, 10001
};
// Act
var actualResult = (await recipeAllergenService
.GetRecipeIdsByAllergenIdsAsync(nonExistentAllergenIds))
.Count;
var expectedResult = 0;
// Assert
Assert.True(expectedResult == actualResult, errorMessagePrefix + " " + "Collections is not empty.");
}
public async Task GetRecipeIdsByAllergenIdsAsync_WithExistentAllergenIds_ShouldReturnCorrectResult()
{
var errorMessagePrefix = "RecipeAllergenService GetRecipeIdsByAllergenIdsAsync() method does not work properly.";
// Arrange
MapperInitializer.InitializeMapper();
var context = ApplicationDbContextInMemoryFactory.InitializeContext();
var recipeAllergenRepository = new EfRepository <RecipeAllergen>(context);
var recipeAllergenService = new RecipeAllergenService(recipeAllergenRepository);
await this.SeedDataAsync(context);
var allergenIds = await context.Allergens.Select(x => x.Id).ToListAsync();
// Act
var actualResult = (await recipeAllergenService
.GetRecipeIdsByAllergenIdsAsync(allergenIds))
.ToList();
var expectedResult = await context.RecipeAllergens
.Where(x => allergenIds.Contains(x.AllergenId))
.Select(x => x.RecipeId)
.ToListAsync();
// Assert
Assert.True(expectedResult.Count == actualResult.Count, errorMessagePrefix + " " + "Collections count mismatch.");
for (int i = 0; i < actualResult.Count; i++)
{
Assert.True(expectedResult[i] == actualResult[i], errorMessagePrefix + " " + "RecipeId is not returned properly.");
}
}