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Diffstat (limited to 'tests/test_texturecache.c')
| -rw-r--r-- | tests/test_texturecache.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/tests/test_texturecache.c b/tests/test_texturecache.c new file mode 100644 index 0000000..3ad24f8 --- /dev/null +++ b/tests/test_texturecache.c @@ -0,0 +1,108 @@ +/*:* + * ggaze — texture cache unit test + * + * Exercises the bounded LRU: capacity cap + eviction, MRU ordering on get, + * replace, and miss. Uses 1x1 GdkMemoryTextures (no display needed). + * + * Copyright (c) 2026 ggaze contributors + * SPDX-License-Identifier: GPL-3.0-or-later + *:*/ + +#include "texturecache.h" + +#include <gdk/gdk.h> +#include <gio/gio.h> +#include <glib.h> + +static GdkTexture * +mk_tex(void) { + static const guint8 u_px[4] = {0, 0, 0, 255}; + GBytes *p_b = g_bytes_new_static(u_px, 4); + GdkTexture *p_t = gdk_memory_texture_new(1, 1, GDK_MEMORY_R8G8B8A8, p_b, 4); + g_bytes_unref(p_b); + return (p_t); +} + +static GFile * +mk_file(const char *c_name) { + return (g_file_new_for_path(c_name)); +} + +static void +test_cap_and_evict(void) { + TextureCache *p_c = texturecache_new(4); + const char *names[5] = {"a.jpg", "b.jpg", "c.jpg", "d.jpg", "e.jpg"}; + GFile *f[5]; + GdkTexture *t[5]; + for (gint i = 0; i < 5; i++) { + f[i] = g_file_new_for_path(names[i]); + t[i] = mk_tex(); + texturecache_put(p_c, f[i], t[i]); + } + g_assert_cmpint(texturecache_get_size(p_c), ==, 4); /* cap 4, 5 put */ + g_assert_null(texturecache_get(p_c, f[0])); /* LRU evicted */ + g_assert_nonnull(texturecache_get(p_c, f[4])); /* newest kept */ + + for (gint i = 0; i < 5; i++) { + g_object_unref(f[i]); + g_object_unref(t[i]); + } + texturecache_delete(p_c); +} + +static void +test_lru_order(void) { + TextureCache *p_c = texturecache_new(2); + GFile *f1 = g_file_new_for_path("1.jpg"); + GFile *f2 = g_file_new_for_path("2.jpg"); + GFile *f3 = g_file_new_for_path("3.jpg"); + GdkTexture *t1 = mk_tex(), *t2 = mk_tex(), *t3 = mk_tex(); + + texturecache_put(p_c, f1, t1); + texturecache_put(p_c, f2, t2); + /* Touch f1 -> f2 becomes LRU. */ + g_assert_nonnull(texturecache_get(p_c, f1)); + texturecache_put(p_c, f3, t3); /* evicts LRU = f2 */ + g_assert_null(texturecache_get(p_c, f2)); + g_assert_nonnull(texturecache_get(p_c, f1)); + g_assert_nonnull(texturecache_get(p_c, f3)); + + g_object_unref(f1); + g_object_unref(f2); + g_object_unref(f3); + g_object_unref(t1); + g_object_unref(t2); + g_object_unref(t3); + texturecache_delete(p_c); +} + +static void +test_replace_and_miss(void) { + TextureCache *p_c = texturecache_new(4); + GFile *f = g_file_new_for_path("x.jpg"); + GdkTexture *t1 = mk_tex(), *t2 = mk_tex(); + + texturecache_put(p_c, f, t1); + g_assert_cmpint(texturecache_get_size(p_c), ==, 1); + texturecache_put(p_c, f, t2); /* replace, no size growth */ + g_assert_cmpint(texturecache_get_size(p_c), ==, 1); + g_assert_true(texturecache_get(p_c, f) == t2); + + GFile *f_other = g_file_new_for_path("other.jpg"); + g_assert_null(texturecache_get(p_c, f_other)); /* miss */ + + g_object_unref(f); + g_object_unref(f_other); + g_object_unref(t1); + g_object_unref(t2); + texturecache_delete(p_c); +} + +int +main(int i_argc, char **c_argv) { + g_test_init(&i_argc, &c_argv, NULL); + g_test_add_func("/texturecache/cap_and_evict", test_cap_and_evict); + g_test_add_func("/texturecache/lru_order", test_lru_order); + g_test_add_func("/texturecache/replace_and_miss", test_replace_and_miss); + return (g_test_run()); +}
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