public void DocumentTypeService_GetAsync_ReturnsDocumentTypesByIds() { //Arrange var mockDbContextScopeFac = new Mock<IDbContextScopeFactory>(); var mockDbContextScope = new Mock<IDbContextReadOnlyScope>(); var mockEfDbContext = new Mock<EFDbContext>(); mockDbContextScopeFac.Setup(x => x.CreateReadOnly(DbContextScopeOption.JoinExisting)).Returns(mockDbContextScope.Object); mockDbContextScope.Setup(x => x.DbContexts.Get<EFDbContext>()).Returns(mockEfDbContext.Object); var dbEntry1 = new DocumentType { Id = "dummyEntryId1", DocTypeName = "Name1", DocTypeAltName = "NameAlt1", IsActive_bl = false }; var dbEntry2 = new DocumentType { Id = "dummyEntryId2", DocTypeName = "Name2", DocTypeAltName = "NameAlt2", IsActive_bl = true }; var dbEntry3 = new DocumentType { Id = "dummyEntryId3", DocTypeName = "Name3", DocTypeAltName = "NameAlt3", IsActive_bl = true }; var dbEntries = (new List<DocumentType> { dbEntry1, dbEntry2, dbEntry3 }).AsQueryable(); var mockDbSet = new Mock<DbSet<DocumentType>>(); mockDbSet.As<IDbAsyncEnumerable<DocumentType>>().Setup(m => m.GetAsyncEnumerator()).Returns(new MockDbAsyncEnumerator<DocumentType>(dbEntries.GetEnumerator())); mockDbSet.As<IQueryable<DocumentType>>().Setup(m => m.Provider).Returns(new MockDbAsyncQueryProvider<DocumentType>(dbEntries.Provider)); mockDbSet.As<IQueryable<DocumentType>>().Setup(m => m.Expression).Returns(dbEntries.Expression); mockDbSet.As<IQueryable<DocumentType>>().Setup(m => m.ElementType).Returns(dbEntries.ElementType); mockDbSet.As<IQueryable<DocumentType>>().Setup(m => m.GetEnumerator()).Returns(dbEntries.GetEnumerator()); mockDbSet.Setup(x => x.Include(It.IsAny<string>())).Returns(mockDbSet.Object); mockEfDbContext.Setup(x => x.DocumentTypes).Returns(mockDbSet.Object); var docTypeService = new DocumentTypeService(mockDbContextScopeFac.Object, "dummyUserId"); //Act var serviceResult = docTypeService.GetAsync(new string[] { "dummyEntryId3" }).Result; //Assert Assert.IsTrue(serviceResult.Count == 1); Assert.IsTrue(serviceResult[0].DocTypeAltName.Contains("NameAlt3")); }