public async Task Create_NoErrors_ReturnsTrue()
        {
            var triangles = new List <Triangle>();

            _triangleRepsitoryMock.Setup(s => s.IntializeAsync(It.IsAny <IEnumerable <Triangle> >()))
            .Callback <IEnumerable <Triangle> >(c => triangles.AddRange(c))
            .ReturnsAsync(true);

            var actual = await _triangleService.CreateAsync();

            Assert.IsTrue(actual);

            var a1 = triangles.FirstOrDefault(f => f.Row == Row.A && f.Column == 1);

            Assert.IsNotNull(a1);
            Assert.IsTrue(a1.Vertices.Contains(new Vertex {
                X = 0, Y = 0
            }));
            Assert.IsTrue(a1.Vertices.Contains(new Vertex {
                X = 0, Y = 10
            }));
            Assert.IsTrue(a1.Vertices.Contains(new Vertex {
                X = 10, Y = 10
            }));

            var d5 = triangles.FirstOrDefault(f => f.Row == Row.D && f.Column == 5);

            Assert.IsNotNull(d5);
            Assert.IsTrue(d5.Vertices.Contains(new Vertex {
                X = 20, Y = 30
            }));
            Assert.IsTrue(d5.Vertices.Contains(new Vertex {
                X = 20, Y = 40
            }));
            Assert.IsTrue(d5.Vertices.Contains(new Vertex {
                X = 30, Y = 40
            }));

            var d6 = triangles.FirstOrDefault(f => f.Row == Row.D && f.Column == 6);

            Assert.IsNotNull(d6);
            Assert.IsTrue(d6.Vertices.Contains(new Vertex {
                X = 20, Y = 30
            }));
            Assert.IsTrue(d6.Vertices.Contains(new Vertex {
                X = 30, Y = 30
            }));
            Assert.IsTrue(d6.Vertices.Contains(new Vertex {
                X = 30, Y = 40
            }));

            var f12 = triangles.FirstOrDefault(f => f.Row == Row.F && f.Column == 12);

            Assert.IsNotNull(f12);
            Assert.IsTrue(f12.Vertices.Contains(new Vertex {
                X = 50, Y = 50
            }));
            Assert.IsTrue(f12.Vertices.Contains(new Vertex {
                X = 60, Y = 50
            }));
            Assert.IsTrue(f12.Vertices.Contains(new Vertex {
                X = 60, Y = 60
            }));
        }