add more tests

This commit is contained in:
2026-08-02 23:50:37 -07:00
parent 209e774230
commit 248e57d3f0
5 changed files with 259 additions and 0 deletions
+46
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@@ -0,0 +1,46 @@
package main
import "core:testing"
@(test)
opaque_bounds_inset :: proc(t: ^testing.T) {
// 4x4, opaque 2x2 at (1,1)
pixels := make([]u8, 4 * 4 * 4)
defer delete(pixels)
for y in 1 ..= 2 {
for x in 1 ..= 2 {
i := (y * 4 + x) * 4
pixels[i + 3] = 255
}
}
x, y, w, h := opaque_bounds_rgba(pixels, 4, 4)
testing.expect_value(t, x, 1)
testing.expect_value(t, y, 1)
testing.expect_value(t, w, 2)
testing.expect_value(t, h, 2)
}
@(test)
opaque_bounds_full :: proc(t: ^testing.T) {
pixels := make([]u8, 2 * 2 * 4)
defer delete(pixels)
for i := 3; i < len(pixels); i += 4 {
pixels[i] = 255
}
x, y, w, h := opaque_bounds_rgba(pixels, 2, 2)
testing.expect_value(t, x, 0)
testing.expect_value(t, y, 0)
testing.expect_value(t, w, 2)
testing.expect_value(t, h, 2)
}
@(test)
opaque_bounds_empty :: proc(t: ^testing.T) {
pixels := make([]u8, 3 * 3 * 4)
defer delete(pixels)
x, y, w, h := opaque_bounds_rgba(pixels, 3, 3)
testing.expect_value(t, x, 0)
testing.expect_value(t, y, 0)
testing.expect_value(t, w, 1)
testing.expect_value(t, h, 1)
}
+64
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@@ -0,0 +1,64 @@
package engine
import "core:testing"
import sdl "vendor:sdl3"
fake_tex :: proc(id: uintptr) -> ^sdl.GPUTexture {
return cast(^sdl.GPUTexture)id
}
@(test)
texture_run_len_empty_or_oob :: proc(t: ^testing.T) {
testing.expect_value(t, texture_run_len(nil, 0), 0)
list := []Queued_Sprite{}
testing.expect_value(t, texture_run_len(list, 0), 0)
list = make([]Queued_Sprite, 1)
defer delete(list)
list[0] = {texture = fake_tex(1)}
testing.expect_value(t, texture_run_len(list, -1), 0)
testing.expect_value(t, texture_run_len(list, 1), 0)
}
@(test)
texture_run_len_single :: proc(t: ^testing.T) {
list := make([]Queued_Sprite, 1)
defer delete(list)
list[0] = {texture = fake_tex(1)}
testing.expect_value(t, texture_run_len(list, 0), 1)
}
@(test)
texture_run_len_same_texture :: proc(t: ^testing.T) {
tex := fake_tex(1)
list := make([]Queued_Sprite, 3)
defer delete(list)
list[0] = {texture = tex}
list[1] = {texture = tex}
list[2] = {texture = tex}
testing.expect_value(t, texture_run_len(list, 0), 3)
}
@(test)
texture_run_len_breaks_on_change :: proc(t: ^testing.T) {
a := fake_tex(1)
b := fake_tex(2)
list := make([]Queued_Sprite, 3)
defer delete(list)
list[0] = {texture = a}
list[1] = {texture = a}
list[2] = {texture = b}
testing.expect_value(t, texture_run_len(list, 0), 2)
testing.expect_value(t, texture_run_len(list, 2), 1)
}
@(test)
texture_run_len_all_different :: proc(t: ^testing.T) {
list := make([]Queued_Sprite, 3)
defer delete(list)
list[0] = {texture = fake_tex(1)}
list[1] = {texture = fake_tex(2)}
list[2] = {texture = fake_tex(3)}
testing.expect_value(t, texture_run_len(list, 0), 1)
testing.expect_value(t, texture_run_len(list, 1), 1)
testing.expect_value(t, texture_run_len(list, 2), 1)
}
+44
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@@ -0,0 +1,44 @@
package engine
import "core:testing"
@(test)
camera_default_values :: proc(t: ^testing.T) {
cam := camera_default()
testing.expect_value(t, cam.position, Vec2{0, 0})
testing.expect_value(t, cam.anchor, Vec2{0.5, 0.5})
}
@(test)
world_to_screen_centered_identity :: proc(t: ^testing.T) {
cam := Camera {
position = {400, 500},
anchor = {0.5, 0.5},
}
viewport := Vec2{800, 600}
screen := world_to_screen(cam, cam.position, viewport)
testing.expect_value(t, screen.x, f32(400))
testing.expect_value(t, screen.y, f32(300))
}
@(test)
world_to_screen_origin_cam :: proc(t: ^testing.T) {
cam := Camera {
position = {0, 0},
anchor = {0.5, 0.5},
}
screen := world_to_screen(cam, {10, 20}, {200, 100})
testing.expect_value(t, screen.x, f32(110))
testing.expect_value(t, screen.y, f32(70))
}
@(test)
world_to_screen_top_left_anchor :: proc(t: ^testing.T) {
cam := Camera {
position = {5, 7},
anchor = {0, 0},
}
screen := world_to_screen(cam, {15, 27}, {800, 600})
testing.expect_value(t, screen.x, f32(10))
testing.expect_value(t, screen.y, f32(20))
}
+49
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@@ -64,6 +64,55 @@ character_frame_rect_hit_and_miss :: proc(t: ^testing.T) {
testing.expect(t, !ok)
}
@(test)
character_frame_returns_full_def :: proc(t: ^testing.T) {
data: Character_Data
data.def.clips = make(map[string]Clip_Def)
defer delete(data.def.clips)
frames := make([]Frame_Def, 1)
frames[0] = Frame_Def {
rect = {10, 20, 30, 40},
source_size = {100, 200},
trim_offset = {5, 7},
}
defer delete(frames)
data.def.clips["idle"] = Clip_Def {
loop = true,
fps = 10,
frames = frames,
}
frame, ok := character_frame(&data, "idle", 0)
testing.expect(t, ok)
testing.expect_value(t, frame.rect, [4]int{10, 20, 30, 40})
testing.expect_value(t, frame.source_size, [2]int{100, 200})
testing.expect_value(t, frame.trim_offset, [2]int{5, 7})
}
@(test)
character_frame_nil_and_bad_index :: proc(t: ^testing.T) {
_, ok := character_frame(nil, "idle", 0)
testing.expect(t, !ok)
data: Character_Data
data.def.clips = make(map[string]Clip_Def)
defer delete(data.def.clips)
frames := make([]Frame_Def, 1)
frames[0] = {rect = {1, 2, 3, 4}}
defer delete(frames)
data.def.clips["idle"] = Clip_Def{frames = frames}
_, ok = character_frame(&data, "idle", -1)
testing.expect(t, !ok)
_, ok = character_frame(&data, "idle", 1)
testing.expect(t, !ok)
_, ok = character_frame(&data, "missing", 0)
testing.expect(t, !ok)
}
destroy_char_def :: proc(def: ^Char_Def) {
if def == nil do return
+56
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@@ -33,3 +33,59 @@ sprite_quad_origin_center :: proc(t: ^testing.T) {
testing.expect_value(t, o.x, f32(350))
testing.expect_value(t, o.y, f32(400))
}
@(test)
frame_uvs_unflipped :: proc(t: ^testing.T) {
u0, v0, u1, v1 := frame_uvs({10, 20, 30, 40}, 100, 200, false)
testing.expect_value(t, u0, f32(0.1))
testing.expect_value(t, v0, f32(0.1))
testing.expect_value(t, u1, f32(0.4))
testing.expect_value(t, v1, f32(0.3))
testing.expect(t, u0 < u1)
}
@(test)
frame_uvs_flipped :: proc(t: ^testing.T) {
a0, _, a1, _ := frame_uvs({10, 20, 30, 40}, 100, 200, false)
b0, v0, b1, v1 := frame_uvs({10, 20, 30, 40}, 100, 200, true)
testing.expect_value(t, b0, a1)
testing.expect_value(t, b1, a0)
testing.expect_value(t, v0, f32(0.1))
testing.expect_value(t, v1, f32(0.3))
}
@(test)
sprite_feet_quad_no_flip :: proc(t: ^testing.T) {
// feet (400,500), source 100x200, pivot feet, trim (10,20), packed 80x160
x0, y0, x1, y1 := sprite_feet_quad(
{400, 500},
100,
200,
{10, 20},
{80, 160},
{0.5, 1.0},
false,
)
testing.expect_value(t, x0, f32(360)) // 400 - 50 + 10
testing.expect_value(t, y0, f32(320)) // 500 - 200 + 20
testing.expect_value(t, x1, f32(440))
testing.expect_value(t, y1, f32(480))
}
@(test)
sprite_feet_quad_flip_x :: proc(t: ^testing.T) {
x0, y0, x1, y1 := sprite_feet_quad(
{400, 500},
100,
200,
{5, 20},
{80, 160},
{0.5, 1.0},
true,
)
// canvas_left = 350; trim_x_draw = 100 - 5 - 80 = 15 → x0 = 365
testing.expect_value(t, x0, f32(365))
testing.expect_value(t, y0, f32(320))
testing.expect_value(t, x1, f32(445))
testing.expect_value(t, y1, f32(480))
}