public async Task GetGroupByName_Test() { // Arrange var teamsService = new TeamsService(this.dbContext); this.dbContext.Groups.Add(new Group { Name = "B" }); this.dbContext.Groups.Add(new Group { Name = "C" }); await this.dbContext.SaveChangesAsync(); // Act var group = teamsService.GetGroupByName("B"); // Assert Assert.AreNotEqual(null, group); }