[mutter] cogl/pipeline/vertend/glsl: Move out unit test to its own file

[Marge Bot <marge-bot src gnome org>]

commit 30daad4da584cd178f435acf371f053744953db0
Author: Jonas Ådahl <jadahl gmail com>
Date:   Fri Aug 5 11:48:18 2022 +0200

    cogl/pipeline/vertend/glsl: Move out unit test to its own file
    
    Fix a memory leak while at it.
    
    Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2555>

 .../driver/gl/cogl-pipeline-vertend-glsl-private.h |  5 ++
 cogl/cogl/driver/gl/cogl-pipeline-vertend-glsl.c   | 67 +++------------------
 src/tests/cogl/unit/meson.build                    |  1 +
 src/tests/cogl/unit/test-pipeline-vertend-glsl.c   | 70 ++++++++++++++++++++++
 4 files changed, 84 insertions(+), 59 deletions(-)
---
diff --git a/cogl/cogl/driver/gl/cogl-pipeline-vertend-glsl-private.h 
b/cogl/cogl/driver/gl/cogl-pipeline-vertend-glsl-private.h
index 4bd3823d02..8260311caa 100644
--- a/cogl/cogl/driver/gl/cogl-pipeline-vertend-glsl-private.h
+++ b/cogl/cogl/driver/gl/cogl-pipeline-vertend-glsl-private.h
@@ -36,10 +36,15 @@
 
 #include "cogl-pipeline-private.h"
 
+typedef struct _CoglPipelineVertendShaderState CoglPipelineVertendShaderState;
+
 extern const CoglPipelineVertend _cogl_pipeline_glsl_vertend;
 
 GLuint
 _cogl_pipeline_vertend_glsl_get_shader (CoglPipeline *pipeline);
 
+COGL_EXPORT_TEST
+CoglPipelineVertendShaderState * cogl_pipeline_vertend_glsl_get_shader_state (CoglPipeline *pipeline);
+
 #endif /* __COGL_PIPELINE_VERTEND_GLSL_PRIVATE_H */
 
diff --git a/cogl/cogl/driver/gl/cogl-pipeline-vertend-glsl.c 
b/cogl/cogl/driver/gl/cogl-pipeline-vertend-glsl.c
index efc3dfaeac..527eadeb36 100644
--- a/cogl/cogl/driver/gl/cogl-pipeline-vertend-glsl.c
+++ b/cogl/cogl/driver/gl/cogl-pipeline-vertend-glsl.c
@@ -35,8 +35,6 @@
 
 #include <string.h>
 
-#include <test-fixtures/test-unit.h>
-
 #include "cogl-context-private.h"
 #include "cogl-pipeline-private.h"
 #include "driver/gl/cogl-util-gl-private.h"
@@ -51,7 +49,7 @@
 
 const CoglPipelineVertend _cogl_pipeline_glsl_vertend;
 
-typedef struct
+struct _CoglPipelineVertendShaderState
 {
   unsigned int ref_count;
 
@@ -59,7 +57,7 @@ typedef struct
   GString *header, *source;
 
   CoglPipelineCacheEntry *cache_entry;
-} CoglPipelineVertendShaderState;
+};
 
 static CoglUserDataKey shader_state_key;
 
@@ -81,6 +79,12 @@ get_shader_state (CoglPipeline *pipeline)
   return cogl_object_get_user_data (COGL_OBJECT (pipeline), &shader_state_key);
 }
 
+CoglPipelineVertendShaderState *
+cogl_pipeline_vertend_glsl_get_shader_state (CoglPipeline *pipeline)
+{
+  return get_shader_state (pipeline);
+}
+
 static void
 destroy_shader_state (void *user_data,
                       void *instance)
@@ -737,58 +741,3 @@ const CoglPipelineVertend _cogl_pipeline_glsl_vertend =
     _cogl_pipeline_vertend_glsl_pre_change_notify,
     _cogl_pipeline_vertend_glsl_layer_pre_change_notify
   };
-
-UNIT_TEST (check_point_size_shader,
-           0 /* no requirements */,
-           0 /* no failure cases */)
-{
-  CoglPipeline *pipelines[4];
-  CoglPipelineVertendShaderState *shader_states[G_N_ELEMENTS (pipelines)];
-  int i;
-
-  /* Default pipeline with zero point size */
-  pipelines[0] = cogl_pipeline_new (test_ctx);
-
-  /* Point size 1 */
-  pipelines[1] = cogl_pipeline_new (test_ctx);
-  cogl_pipeline_set_point_size (pipelines[1], 1.0f);
-
-  /* Point size 2 */
-  pipelines[2] = cogl_pipeline_new (test_ctx);
-  cogl_pipeline_set_point_size (pipelines[2], 2.0f);
-
-  /* Same as the first pipeline, but reached by restoring the old
-   * state from a copy */
-  pipelines[3] = cogl_pipeline_copy (pipelines[1]);
-  cogl_pipeline_set_point_size (pipelines[3], 0.0f);
-
-  /* Draw something with all of the pipelines to make sure their state
-   * is flushed */
-  for (i = 0; i < G_N_ELEMENTS (pipelines); i++)
-    cogl_framebuffer_draw_rectangle (test_fb,
-                                     pipelines[i],
-                                     0.0f, 0.0f,
-                                     10.0f, 10.0f);
-  cogl_framebuffer_finish (test_fb);
-
-  /* Get all of the shader states. These might be NULL if the driver
-   * is not using GLSL */
-  for (i = 0; i < G_N_ELEMENTS (pipelines); i++)
-    shader_states[i] = get_shader_state (pipelines[i]);
-
-  /* If the first two pipelines are using GLSL then they should have
-   * the same shader unless there is no builtin uniform for the point
-   * size */
-  if (shader_states[0])
-    {
-      g_assert (shader_states[0] != shader_states[1]);
-    }
-
-  /* The second and third pipelines should always have the same shader
-   * state because only toggling between zero and non-zero should
-   * change the shader */
-  g_assert (shader_states[1] == shader_states[2]);
-
-  /* The fourth pipeline should be exactly the same as the first */
-  g_assert (shader_states[0] == shader_states[3]);
-}
diff --git a/src/tests/cogl/unit/meson.build b/src/tests/cogl/unit/meson.build
index 2a3216bee1..d17346ee1c 100644
--- a/src/tests/cogl/unit/meson.build
+++ b/src/tests/cogl/unit/meson.build
@@ -7,6 +7,7 @@ cogl_unit_tests = [
   ['test-pipeline-state-known-failure', false, all_variants],
   ['test-pipeline-state', true, all_variants],
   ['test-pipeline-glsl', true, all_variants],
+  ['test-pipeline-vertend-glsl', true, all_variants],
 ]
 
 test_env = environment()
diff --git a/src/tests/cogl/unit/test-pipeline-vertend-glsl.c 
b/src/tests/cogl/unit/test-pipeline-vertend-glsl.c
new file mode 100644
index 0000000000..7f0ff59b2e
--- /dev/null
+++ b/src/tests/cogl/unit/test-pipeline-vertend-glsl.c
@@ -0,0 +1,70 @@
+#include "cogl-config.h"
+
+#include "cogl/cogl.h"
+#include "cogl/driver/gl/cogl-pipeline-vertend-glsl-private.h"
+#include "tests/cogl-test-utils.h"
+
+static void
+test_pipeline_vertend_glsl_point_size_shader (void)
+{
+  CoglPipeline *pipelines[4];
+  CoglPipelineVertendShaderState *shader_states[G_N_ELEMENTS (pipelines)];
+  int i;
+
+  /* Default pipeline with zero point size */
+  pipelines[0] = cogl_pipeline_new (test_ctx);
+
+  /* Point size 1 */
+  pipelines[1] = cogl_pipeline_new (test_ctx);
+  cogl_pipeline_set_point_size (pipelines[1], 1.0f);
+
+  /* Point size 2 */
+  pipelines[2] = cogl_pipeline_new (test_ctx);
+  cogl_pipeline_set_point_size (pipelines[2], 2.0f);
+
+  /* Same as the first pipeline, but reached by restoring the old
+   * state from a copy */
+  pipelines[3] = cogl_pipeline_copy (pipelines[1]);
+  cogl_pipeline_set_point_size (pipelines[3], 0.0f);
+
+  /* Draw something with all of the pipelines to make sure their state
+   * is flushed */
+  for (i = 0; i < G_N_ELEMENTS (pipelines); i++)
+    {
+      cogl_framebuffer_draw_rectangle (test_fb,
+                                       pipelines[i],
+                                       0.0f, 0.0f,
+                                       10.0f, 10.0f);
+    }
+  cogl_framebuffer_finish (test_fb);
+
+  /* Get all of the shader states. These might be NULL if the driver
+   * is not using GLSL */
+  for (i = 0; i < G_N_ELEMENTS (pipelines); i++)
+    {
+      shader_states[i] =
+        cogl_pipeline_vertend_glsl_get_shader_state (pipelines[i]);
+    }
+
+  /* If the first two pipelines are using GLSL then they should have
+   * the same shader unless there is no builtin uniform for the point
+   * size */
+  if (shader_states[0])
+    g_assert (shader_states[0] != shader_states[1]);
+
+  /* The second and third pipelines should always have the same shader
+   * state because only toggling between zero and non-zero should
+   * change the shader */
+  g_assert (shader_states[1] == shader_states[2]);
+
+  /* The fourth pipeline should be exactly the same as the first */
+  g_assert (shader_states[0] == shader_states[3]);
+
+  for (i = 0; i < G_N_ELEMENTS (pipelines); i++)
+    cogl_object_unref (pipelines[i]);
+}
+
+COGL_TEST_SUITE (
+  g_test_add_func ("/pipeline/vertend/glsl/point-size-shader",
+                   test_pipeline_vertend_glsl_point_size_shader);
+)