From 14c9f64def7439aa4b6b74d57ba9bc2b82177dd6 Mon Sep 17 00:00:00 2001
From: Tiago Chaves <laurelkeys>
Date: Wed, 4 Mar 2020 10:24:21 +1100
Subject: BLI_math: add clamp_v# and clamp_v#_v#v# utility functions

---
 tests/gtests/blenlib/BLI_math_vector_test.cc | 47 ++++++++++++++++++++++++++++
 tests/gtests/blenlib/CMakeLists.txt          |  1 +
 2 files changed, 48 insertions(+)
 create mode 100644 tests/gtests/blenlib/BLI_math_vector_test.cc

(limited to 'tests/gtests')

diff --git a/tests/gtests/blenlib/BLI_math_vector_test.cc b/tests/gtests/blenlib/BLI_math_vector_test.cc
new file mode 100644
index 00000000000..7e75a521d4c
--- /dev/null
+++ b/tests/gtests/blenlib/BLI_math_vector_test.cc
@@ -0,0 +1,47 @@
+/* Apache License, Version 2.0 */
+
+#include "testing/testing.h"
+
+#include "BLI_math.h"
+
+TEST(math_vector, ClampVecWithFloats)
+{
+  const float min = 0.0f;
+  const float max = 1.0f;
+
+  float a[2] = {-1.0f, -1.0f};
+  clamp_v2(a, min, max);
+  EXPECT_FLOAT_EQ(0.0f, a[0]);
+  EXPECT_FLOAT_EQ(0.0f, a[1]);
+
+  float b[2] = {0.5f, 0.5f};
+  clamp_v2(b, min, max);
+  EXPECT_FLOAT_EQ(0.5f, b[0]);
+  EXPECT_FLOAT_EQ(0.5f, b[1]);
+
+  float c[2] = {2.0f, 2.0f};
+  clamp_v2(c, min, max);
+  EXPECT_FLOAT_EQ(1.0f, c[0]);
+  EXPECT_FLOAT_EQ(1.0f, c[1]);
+}
+
+TEST(math_vector, ClampVecWithVecs)
+{
+  const float min[2] = {0.0f, 2.0f};
+  const float max[2] = {1.0f, 3.0f};
+
+  float a[2] = {-1.0f, -1.0f};
+  clamp_v2_v2v2(a, min, max);
+  EXPECT_FLOAT_EQ(0.0f, a[0]);
+  EXPECT_FLOAT_EQ(2.0f, a[1]);
+
+  float b[2] = {0.5f, 2.5f};
+  clamp_v2_v2v2(b, min, max);
+  EXPECT_FLOAT_EQ(0.5f, b[0]);
+  EXPECT_FLOAT_EQ(2.5f, b[1]);
+
+  float c[2] = {2.0f, 4.0f};
+  clamp_v2_v2v2(c, min, max);
+  EXPECT_FLOAT_EQ(1.0f, c[0]);
+  EXPECT_FLOAT_EQ(3.0f, c[1]);
+}
diff --git a/tests/gtests/blenlib/CMakeLists.txt b/tests/gtests/blenlib/CMakeLists.txt
index 1a104fcb746..119b54fa0d4 100644
--- a/tests/gtests/blenlib/CMakeLists.txt
+++ b/tests/gtests/blenlib/CMakeLists.txt
@@ -58,6 +58,7 @@ BLENDER_TEST(BLI_map "bf_blenlib")
 BLENDER_TEST(BLI_math_base "bf_blenlib")
 BLENDER_TEST(BLI_math_color "bf_blenlib")
 BLENDER_TEST(BLI_math_geom "bf_blenlib")
+BLENDER_TEST(BLI_math_vector "bf_blenlib")
 BLENDER_TEST(BLI_memiter "bf_blenlib")
 BLENDER_TEST(BLI_optional "bf_blenlib")
 BLENDER_TEST(BLI_path_util "${BLI_path_util_extra_libs}")
-- 
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