public async Task Given_invalid_character_id_during_delete_should_throw_an_exception()
{
//arrange
var invalidCharacterId = 0;
var repository = new CharacterRepository(DbContext, new UnitOfWork(DbContext));
//act, assert
await Assert.ThrowsAsync <NotFoundException>(() => repository.DeleteAsync(invalidCharacterId));
}
public async Task DeleteAsync_given_non_existing_characterId_returns_false()
{
using (var connection = await CreateConnectionAsync())
using (var context = await CreateContextAsync(connection))
{
var repository = new CharacterRepository(context);
var deleted = await repository.DeleteAsync(0);
Assert.False(deleted);
}
}
public async Task DeleteAsync_given_id_exists_context_SaveChanges()
{
var entity = new Character();
var mock = new Mock <IFuturamaContext>();
mock.Setup(s => s.Characters.FindAsync(42)).ReturnsAsync(entity);
var repository = new CharacterRepository(mock.Object);
await repository.DeleteAsync(42);
mock.Verify(s => s.SaveChangesAsync(default));
public async Task DeleteAsync_given_id_not_exists_return_false()
{
var mock = new Mock <IFuturamaContext>();
mock.Setup(s => s.Characters.FindAsync(42)).ReturnsAsync(default(Character));
var repository = new CharacterRepository(mock.Object);
var deleted = await repository.DeleteAsync(42);
Assert.False(deleted);
}
public async Task DeleteAsync_given_id_exists_character_is_removed_from_context()
{
var entity = new Character();
var mock = new Mock <IFuturamaContext>();
mock.Setup(s => s.Characters.FindAsync(42)).ReturnsAsync(entity);
var repository = new CharacterRepository(mock.Object);
await repository.DeleteAsync(42);
mock.Verify(s => s.Characters.Remove(entity));
}
public async Task Delete_given_non_existing_character_does_not_call_SaveChangesAsync()
{
var character = new Character();
var mock = new Mock <IFuturamaContext>();
mock.Setup(m => m.Characters.FindAsync(42)).ReturnsAsync(default(Character));
using (var repository = new CharacterRepository(mock.Object))
{
await repository.DeleteAsync(42);
}
mock.Verify(m => m.SaveChangesAsync(default(CancellationToken)), Times.Never);
}
public async Task Delete_given_existing_character_removes_it()
{
var character = new Character();
var mock = new Mock <IFuturamaContext>();
mock.Setup(m => m.Characters.FindAsync(42)).ReturnsAsync(character);
using (var repository = new CharacterRepository(mock.Object))
{
await repository.DeleteAsync(42);
}
mock.Verify(m => m.Characters.Remove(character));
}
public async Task Delete_given_42_deletes_character_and_SaveChanges()
{
var character = new Character();
var mock = new Mock <IFuturamaContext>();
mock.Setup(m => m.Characters.FindAsync(42)).ReturnsAsync(character);
mock.Setup(m => m.Characters.Remove(character));
using (var repository = new CharacterRepository(mock.Object))
{
await repository.DeleteAsync(42);
}
mock.Verify(m => m.SaveChangesAsync(default(CancellationToken)));
}
public async Task After_deleted_character_should_not_give_deleted_character()
{
//arrange
var newCharacter = new Character()
{
CharacterId = 100,
Name = "Yoda"
};
var repository = new CharacterRepository(DbContext, new UnitOfWork(DbContext));
//act
await repository.CreateAsync(newCharacter);
await repository.DeleteAsync(newCharacter.CharacterId);
//assert
DbContext.Characters.Find(newCharacter.CharacterId).Should().BeNull();
}
public async Task DeleteAsync_given_existing_characterId_deletes_and_returns_true()
{
using (var connection = await CreateConnectionAsync())
using (var context = await CreateContextAsync(connection))
{
var entity = new Character {
Name = "Fry", Species = "Human", Planet = "Earth"
};
context.Characters.Add(entity);
await context.SaveChangesAsync();
var id = entity.Id;
var repository = new CharacterRepository(context);
var deleted = await repository.DeleteAsync(id);
Assert.True(deleted);
}
}
public async Task DeleteAsync_sends_delete()
{
var handler = new Mock <HttpMessageHandler>();
handler.Protected()
.Setup <Task <HttpResponseMessage> >(
"SendAsync",
ItExpr.IsAny <HttpRequestMessage>(),
ItExpr.IsAny <CancellationToken>()
)
.ReturnsAsync(new HttpResponseMessage
{
StatusCode = HttpStatusCode.NoContent
});
var client = new HttpClient(handler.Object)
{
BaseAddress = new Uri("https://futurama.com/"),
};
var repository = new CharacterRepository(client);
var result = await repository.DeleteAsync(42);
Assert.True(result);
handler.Protected().Verify(
"SendAsync",
Times.Once(),
ItExpr.Is <HttpRequestMessage>(req =>
req.Method == HttpMethod.Delete &&
req.RequestUri == new Uri("https://futurama.com/api/characters/42")
),
ItExpr.IsAny <CancellationToken>()
);
}
