add unit tests

2026-08-01 00:59:18 -07:00
parent 06ade6a4b7
commit fca6bd0945
6 changed files with 191 additions and 27 deletions
@@ -0,0 +1,21 @@
+package engine
+
+import "core:testing"
+
+@(test)
+to_clip_corners :: proc(t: ^testing.T) {
+	// top-left pixel (0,0) -> clip (-1, 1) with y-flip
+	p := to_clip(0, 0, 800, 600)
+	testing.expect_value(t, p[0], f32(-1))
+	testing.expect_value(t, p[1], f32(1))
+
+	// bottom-right pixel (sw, sh) -> clip (1, -1)
+	p = to_clip(800, 600, 800, 600)
+	testing.expect_value(t, p[0], f32(1))
+	testing.expect_value(t, p[1], f32(-1))
+
+	// center
+	p = to_clip(400, 300, 800, 600)
+	testing.expect_value(t, p[0], f32(0))
+	testing.expect_value(t, p[1], f32(0))
+}