public void TestRandomDataLength()
{
Random rd = new Random();
Int32 width = rd.Next();
Int32 height = rd.Next();
width %= 2160;
height %= 3840;
ColorGridData cgd = new ColorGridData(width, height);
cgd.generate_random_color_grid();
Assert.AreEqual(width * height * 4, cgd.random_data.Length);
}
public void TestRandomDataValue()
{
Random rd = new Random();
Int32 width = rd.Next();
Int32 height = rd.Next();
width %= 2160;
height %= 3840;
ColorGridData cgd1 = new ColorGridData(width, height);
ColorGridData cgd2 = new ColorGridData(width, height);
cgd1.generate_random_color_grid();
cgd2.generate_random_color_grid();
Assert.AreNotEqual(cgd1.random_data, cgd2.random_data);
}
public void TestHUESorting()
{
Int32 width = 600;
Int32 height = 600;
Byte[] bgr = new Byte[3], sorted_data;
Stopwatch stopwatch = new Stopwatch();
long max_time_elapse = 2 * 1000;
Int32 x = 0, y = 0, pixel_index = 0;
float previous_hue = 0, this_hue = 0;
ColorGridData.color_align align = ColorGridData.color_align.left;
ColorGridData cgd = new ColorGridData(width, height);
cgd.generate_random_color_grid();
stopwatch.Start();
cgd.color_sort_by_hue(align, 360);
stopwatch.Stop();
if (max_time_elapse < stopwatch.ElapsedMilliseconds)
{
Assert.Fail("Spent " + stopwatch.ElapsedMilliseconds + " ms on sorting," + " beyond max [" + max_time_elapse + "] ms");
}
sorted_data = cgd.sorted_data;
Assert.AreEqual(cgd.random_data.Length, cgd.sorted_data.Length);
switch (align)
{
case ColorGridData.color_align.top:
case ColorGridData.color_align.left:
x = 0;
y = 0;
break;
case ColorGridData.color_align.right:
x = width - 1;
y = 0;
break;
case ColorGridData.color_align.buttom:
x = 0;
y = height - 1;
break;
default:
return;
}
while ((x >= 0) && (x < width) && (y >= 0) && (y < height))
{
pixel_index = y * width + x;
this_hue = this.TestCalculateHUE(sorted_data[pixel_index * 4], sorted_data[pixel_index * 4 + 1], sorted_data[pixel_index * 4 + 2]);
if (this_hue < previous_hue)
{
Assert.Fail("wrong sorting by HUE at point [" + x + "," + y + "]");
}
previous_hue = this_hue;
switch (align)
{
case ColorGridData.color_align.left:
y++;
if (y == height)
{
x++;
y = 0;
}
break;
case ColorGridData.color_align.top:
x++;
if (x == width)
{
y++;
x = 0;
}
break;
case ColorGridData.color_align.right:
y++;
if (y == height)
{
x--;
y = 0;
}
break;
case ColorGridData.color_align.buttom:
x++;
if (x == width)
{
y--;
x = 0;
}
break;
default:
return;
}
}
}