public void CreateContest_HappyPath()
{
// Create a fake Contest entity to simulate one being created in the UI
Contest fakeContest = this.GetFakeContest();
// Arrange for the mocks to return no existing contests in the database
DbSet <Contest> mockSet = CustomTestUtils.FakeDbSet <Contest>(this.emptyContestList);
this.dbContext.Contests.Returns(mockSet);
// Call the method being tested
Contest contest = this.service.CreateContest(fakeContest);
// Assert that calls were made against the mock dbContext and that we have a result
this.dbContext.Received(1).Add(Arg.Is <Contest>(x => x.Name == fakeContest.Name));
this.dbContext.Received(1).SaveChanges();
Assert.That(contest, Is.Not.Null);
}
public void CreateContest_DuplicateContest_Throws()
{
// This test ensures that the user will be prevented from saving a duplicate test as determined by
// the same Name and ContestDate
Contest fakeContest = this.GetFakeContest();
// Arrange for the mocks to return an existing Contest that matches with the fake being saved
Contest oneExisting = new Contest {
Name = fakeContest.Name, ContestDate = fakeContest.ContestDate
};
DbSet <Contest> mockSet = CustomTestUtils.FakeDbSet <Contest>(new List <Contest> {
oneExisting
});
this.dbContext.Contests.Returns(mockSet);
Assert.Throws <InvalidOperationException>(() => this.service.CreateContest(fakeContest));
this.dbContext.DidNotReceiveWithAnyArgs().SaveChanges();
}