[Test]
public void DrawGradientGraph()
{
    var colors = new List<Color>(new[]
    {
        Color.DarkGreen, Color.Red, Color.Orange, Color.Green, Color.Black, Color.Gold,
        Color.PaleGreen
    });
    var colorRanges = new RangeGraph<Color>(colors);
    new GradientGraph(new Rectangle(0.1f, 0.4f, 0.8f, 0.2f), colorRanges);
}

[Test]
public void DrawGradientGraph()
{
    var colors = new List<Color>(new[]
    {
        Color.DarkGreen, Color.Red, Color.Orange, Color.Green, Color.Black, Color.Gold,
        Color.PaleGreen
    });
    var colorRanges = new RangeGraph<Color>(colors);
    new GradientGraph(new Rectangle(0.1f, 0.4f, 0.8f, 0.2f), colorRanges);
}

[Test]
public void DrawGraphByAddingNewValues()
{
    var graph = new GradientGraph(new Rectangle(0.1f, 0.4f, 0.8f, 0.2f));
    graph.AddValueBefore(0, Color.Cyan);
    graph.AddValueAfter(0, Color.Purple);
    graph.SetValue(2, Color.Gold);
    Assert.AreEqual(3, graph.Values.Length);
    Assert.AreEqual(Color.Cyan, graph.Values[0]);
    Assert.AreEqual(Color.Purple, graph.Values[1]);
    Assert.AreEqual(Color.Gold, graph.Values[2]);
}

[Test]
public void DrawGraphByAddingNewValues()
{
    var graph = new GradientGraph(new Rectangle(0.1f, 0.4f, 0.8f, 0.2f));
    graph.AddValueBefore(0, Color.Cyan);
    graph.AddValueAfter(0, Color.Purple);
    graph.SetValue(2, Color.Gold);
    Assert.AreEqual(3, graph.Values.Length);
    Assert.AreEqual(Color.Cyan, graph.Values[0]);
    Assert.AreEqual(Color.Purple, graph.Values[1]);
    Assert.AreEqual(Color.Gold, graph.Values[2]);
}

[Test, CloseAfterFirstFrame]
public void AddColorsToGradient()
{
    var colors = new List<Color>(new[] { Color.DarkGreen, Color.Red, Color.Orange, Color.Green});

[Test, CloseAfterFirstFrame]
public void AddColorsToGradient()
{
    var colors = new List<Color>(new[] { Color.DarkGreen, Color.Red, Color.Orange, Color.Green});