public async Task ThrowArgumentNullException_WhenPassedNullAccessToken()
        {
            // Arrange
            Mock <IPandaScoreClient> pandaScoreClientMock = new Mock <IPandaScoreClient>();
            Mock <DataContext>       dataContextMock      = new Mock <DataContext>();

            // Act
            SpellService SUT = new SpellService(
                pandaScoreClientMock.Object,
                dataContextMock.Object);

            // Assert
            await Assert.ThrowsExceptionAsync <ArgumentNullException>(async() =>
                                                                      await SUT.RebaseSpellsAsync(null));
        }
        public async Task RebaseSpellsAsync_ShouldRepopulateSpellTable_WhenPassedValidParameters()
        {
            // Arrange
            var contextOptions = new DbContextOptionsBuilder <DataContext>()
                                 .UseInMemoryDatabase(databaseName: "RebaseSpellsAsync_ShouldRepopulateSpellTable_WhenPassedValidParameters")
                                 .Options;

            string validAccessToken    = string.Empty;
            string validCollectionName = "spells";
            int    validPageSize       = 100;

            Spell validSpell = new Spell
            {
                Id        = Guid.NewGuid(),
                Name      = "testTeam",
                DeletedOn = DateTime.UtcNow.AddHours(2),
                IsDeleted = true
            };

            IEnumerable <Spell> validSpellList = new List <Spell>()
            {
                validSpell
            };

            // Act
            using (DataContext actContext = new DataContext(contextOptions))
            {
                Mock <IPandaScoreClient> pandaScoreClientMock = new Mock <IPandaScoreClient>();

                pandaScoreClientMock
                .Setup(mock => mock.GetEntitiesParallel <Spell>(validAccessToken, validCollectionName, validPageSize))
                .Returns(Task.FromResult(validSpellList));

                SpellService SUT = new SpellService(
                    pandaScoreClientMock.Object,
                    actContext);

                await SUT.RebaseSpellsAsync(validAccessToken);
            }

            // Assert
            using (DataContext assertContext = new DataContext(contextOptions))
            {
                Assert.IsTrue(assertContext.Spells.Count() == 1);
                Assert.IsTrue(assertContext.Spells.Contains(validSpell));
            }
        }