public async Task AddForbiddenWordAsync_UnderMinLengthWord_ThrowsArgumentException()
{
// Arrange
var service = new ChatService(new EmptyChatDbContextFactory());
// Assert
await Assert.ThrowsAsync <ArgumentException>(async() =>
await service.AddForbiddenWordAsync(ChatId, "bob")
);
}
public async Task AddForbiddenWordAsync_DuplicateWord_ThrowsAddingDuplicateRecordException()
{
// Arrange
var service = new ChatService(new FilledChatDbContextFactory());
// Act & Assert
await Assert.ThrowsAsync <AddingDuplicateRecord>(async() =>
await service.AddForbiddenWordAsync(ChatId, "abcd")
);
}
public async Task AddForbiddenWordAsync_EmptyString_ThrowsArgumentNullException()
{
// Arrange
var service = new ChatService(new EmptyChatDbContextFactory());
// Act & Assert
await Assert.ThrowsAsync <ArgumentNullException>(async() =>
await service.AddForbiddenWordAsync(ChatId, string.Empty)
);
}
public async Task AddForbiddenWordAsync_CorrectWordAndNonExistChat_ReturnsChatWithForbiddenWord()
{
// Arrange
var service = new ChatService(new EmptyDbContextFactory());
// Act
var chatWithForbiddenWord = await service.AddForbiddenWordAsync(ChatId, "java");
// Assert
Assert.Collection(chatWithForbiddenWord.ForbiddenWords,
item => Assert.Equal("java", item.Word));
}
