public async Task Save_ShouldThrowArgumentNullException_WhenInputIsNull()
{
Mock <IDynamoDBContext> mock = new Mock <IDynamoDBContext>();
ITokenUserRepository sut = new TokenUserRepository(mock.Object);
await Assert.ThrowsAsync <ArgumentNullException>(() => sut.Save(null));
}
public async Task Save_ShouldComplete_WhenInputIsValid()
{
TokenUser user = new TokenUser()
{
Id = "abc123"
};
Mock <IDynamoDBContext> mock = new Mock <IDynamoDBContext>();
mock.Setup(x => x.SaveAsync <TokenUser>(It.IsAny <TokenUser>(), It.IsAny <CancellationToken>())).Returns(Task.FromResult(true));
ITokenUserRepository repository = new TokenUserRepository(mock.Object);
await repository.Save(user);
mock.Verify(x => x.SaveAsync <TokenUser>(It.IsAny <TokenUser>(), It.IsAny <CancellationToken>()), Times.Once());
}