1 files changed, 57 insertions, 0 deletions
diff --git a/source/blender/blenlib/tests/BLI_bounds_test.cc b/source/blender/blenlib/tests/BLI_bounds_test.cc
new file mode 100644
index 00000000000..9c123d4705c
--- /dev/null
+++ b/source/blender/blenlib/tests/BLI_bounds_test.cc
@@ -0,0 +1,57 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+
+#include "testing/testing.h"
+
+#include "BLI_math_base.hh"
+
+#include "BLI_array.hh"
+#include "BLI_bounds.hh"
+
+namespace blender::tests {
+
+TEST(bounds, Empty)
+{
+  Span<float2> empty_span{};
+  EXPECT_TRUE(empty_span.is_empty());
+  auto result = bounds::min_max(empty_span);
+  EXPECT_EQ(result, std::nullopt);
+}
+
+TEST(bounds, MinMax)
+{
+  Array<float2> data = {float2(0, 1), float2(3, -1), float2(0, -2), float2(-1, 1)};
+  auto result = bounds::min_max(data.as_span());
+  EXPECT_EQ(result->min, float2(-1, -2));
+  EXPECT_EQ(result->max, float2(3, 1));
+}
+
+TEST(bounds, MinMaxFloat)
+{
+  Array<float> data = {1.0f, 3.0f, 0.0f, -1.0f};
+  auto result = bounds::min_max(data.as_span());
+  EXPECT_EQ(result->min, -1.0f);
+  EXPECT_EQ(result->max, 3.0f);
+}
+
+TEST(bounds, MinMaxRadii)
+{
+  Array<int2> data = {int2(0, 1), int2(3, -1), int2(0, -2), int2(-1, 1)};
+  Array<int> radii = {5, 1, 1, 4};
+  auto result = bounds::min_max_with_radii(data.as_span(), radii.as_span());
+  EXPECT_EQ(result->min, int2(-5, -4));
+  EXPECT_EQ(result->max, int2(5, 6));
+}
+
+TEST(bounds, Large)
+{
+  Array<int2> data(10000);
+  for (const int64_t i : data.index_range()) {
+    data[i] = int2(i, i);
+  }
+
+  auto result = bounds::min_max(data.as_span());
+  EXPECT_EQ(result->min, int2(0, 0));
+  EXPECT_EQ(result->max, int2(9999, 9999));
+}
+
+}  // namespace blender::tests