Tests: move remaining gtests into their own module folders

And make them part of the blender_test runner. The one exception is blenlib
performance tests, which we don't want to run by default. They remain in their
own executable.

Differential Revision: https://developer.blender.org/D8498

1 files changed, 76 insertions, 0 deletions

diff --git a/source/blender/blenlib/tests/BLI_math_color_test.cc b/source/blender/blenlib/tests/BLI_math_color_test.cc
new file mode 100644
index 00000000000..7df47e74eb0
--- /dev/null
+++ b/source/blender/blenlib/tests/BLI_math_color_test.cc
@@ -0,0 +1,76 @@
+/* Apache License, Version 2.0 */
+
+#include "testing/testing.h"
+
+#include "BLI_math.h"
+
+TEST(math_color, RGBToHSVRoundtrip)
+{
+  float orig_rgb[3] = {0.1f, 0.2f, 0.3f};
+  float hsv[3], rgb[3];
+  rgb_to_hsv_v(orig_rgb, hsv);
+  hsv_to_rgb_v(hsv, rgb);
+  EXPECT_V3_NEAR(orig_rgb, rgb, 1e-5);
+}
+
+TEST(math_color, RGBToHSLRoundtrip)
+{
+  float orig_rgb[3] = {0.1f, 0.2f, 0.3f};
+  float hsl[3], rgb[3];
+  rgb_to_hsl_v(orig_rgb, hsl);
+  hsl_to_rgb_v(hsl, rgb);
+  EXPECT_V3_NEAR(orig_rgb, rgb, 1e-5);
+}
+
+TEST(math_color, RGBToYUVRoundtrip)
+{
+  float orig_rgb[3] = {0.1f, 0.2f, 0.3f};
+  float yuv[3], rgb[3];
+  rgb_to_yuv(orig_rgb[0], orig_rgb[1], orig_rgb[2], &yuv[0], &yuv[1], &yuv[2], BLI_YUV_ITU_BT709);
+  yuv_to_rgb(yuv[0], yuv[1], yuv[2], &rgb[0], &rgb[1], &rgb[2], BLI_YUV_ITU_BT709);
+  EXPECT_V3_NEAR(orig_rgb, rgb, 1e-4);
+}
+
+TEST(math_color, RGBToYCCRoundtrip)
+{
+  float orig_rgb[3] = {0.1f, 0.2f, 0.3f};
+  float ycc[3], rgb[3];
+
+  rgb_to_ycc(orig_rgb[0], orig_rgb[1], orig_rgb[2], &ycc[0], &ycc[1], &ycc[2], BLI_YCC_ITU_BT601);
+  ycc_to_rgb(ycc[0], ycc[1], ycc[2], &rgb[0], &rgb[1], &rgb[2], BLI_YCC_ITU_BT601);
+  EXPECT_V3_NEAR(orig_rgb, rgb, 1e-3);
+
+  rgb_to_ycc(orig_rgb[0], orig_rgb[1], orig_rgb[2], &ycc[0], &ycc[1], &ycc[2], BLI_YCC_ITU_BT709);
+  ycc_to_rgb(ycc[0], ycc[1], ycc[2], &rgb[0], &rgb[1], &rgb[2], BLI_YCC_ITU_BT709);
+  EXPECT_V3_NEAR(orig_rgb, rgb, 1e-3);
+
+  rgb_to_ycc(orig_rgb[0], orig_rgb[1], orig_rgb[2], &ycc[0], &ycc[1], &ycc[2], BLI_YCC_JFIF_0_255);
+  ycc_to_rgb(ycc[0], ycc[1], ycc[2], &rgb[0], &rgb[1], &rgb[2], BLI_YCC_JFIF_0_255);
+  EXPECT_V3_NEAR(orig_rgb, rgb, 1e-3);
+}
+
+TEST(math_color, LinearRGBTosRGBNearZero)
+{
+  float linear_color = 0.002f;
+  float srgb_color = linearrgb_to_srgb(linear_color);
+  EXPECT_NEAR(0.02584f, srgb_color, 1e-5);
+}
+
+TEST(math_color, LinearRGBTosRGB)
+{
+  float linear_color = 0.75f;
+  float srgb_color = linearrgb_to_srgb(linear_color);
+  EXPECT_NEAR(0.880824f, srgb_color, 1e-5);
+}
+
+TEST(math_color, LinearRGBTosRGBRoundtrip)
+{
+  const int N = 50;
+  int i;
+  for (i = 0; i < N; ++i) {
+    float orig_linear_color = (float)i / N;
+    float srgb_color = linearrgb_to_srgb(orig_linear_color);
+    float linear_color = srgb_to_linearrgb(srgb_color);
+    EXPECT_NEAR(orig_linear_color, linear_color, 1e-5);
+  }
+}