private void TestPointsCount(Vector2[] vertices, int expectedTrianglesCount)
{
//Arrange
var expectedTrianglePointsCount = expectedTrianglesCount * PointsPerTriangle;
var builder = new DelaunayTriangulationBuilder();
//Act
var actualTriangulation = builder.Build(vertices).ToList();
//Assert
Assert.AreEqual(expectedTrianglePointsCount, actualTriangulation.Count,
$"Expected points count: {expectedTrianglePointsCount}, but was \n {string.Join("\n ", actualTriangulation)}");
}