[cairo] [PATCH 11/12] test: Use cairo_test_list_t for the main test list

[Andrea Canciani]

Instead of embedding the pointer in the test structure, consistently
use the cairo_test_list_t structure for test lists.

This cleans up the code as the reverse-list operation can be reused.

Moreover this makes the code clearer, because each test list is now
independent and has no way to know about other test lists.
---
 test/cairo-test-runner.c |   24 ++++++------------------
 test/cairo-test.h        |    3 +--
 2 files changed, 7 insertions(+), 20 deletions(-)

diff --git a/test/cairo-test-runner.c b/test/cairo-test-runner.c
index 6a1fc98..b0e598d 100644
--- a/test/cairo-test-runner.c
+++ b/test/cairo-test-runner.c
@@ -107,7 +107,7 @@ typedef enum {
     GT
 } cairo_test_compare_op_t;
 
-static cairo_test_t *tests;
+static cairo_test_list_t *tests;
 
 static void CAIRO_BOILERPLATE_PRINTF_FORMAT(2,3)
 _log (cairo_test_context_t *ctx,
@@ -125,18 +125,6 @@ _log (cairo_test_context_t *ctx,
     va_end (ap);
 }
 
-static void
-_tests_reverse (void)
-{
-    cairo_test_t *list, *next;
-
-    for (list = tests, tests = NULL; list != NULL; list = next) {
-	next = list->next;
-	list->next = tests;
-	tests = list;
-    }
-}
-
 static cairo_test_list_t *
 _list_prepend (cairo_test_list_t *head, const cairo_test_t *test)
 {
@@ -709,7 +697,7 @@ int
 main (int argc, char **argv)
 {
     cairo_test_runner_t runner;
-    cairo_test_t *test;
+    cairo_test_list_t *test_list;
     cairo_test_status_t *target_status;
     unsigned int n, m;
     char targets[4096];
@@ -723,7 +711,7 @@ main (int argc, char **argv)
 #endif
 
     _cairo_test_runner_register_tests ();
-    _tests_reverse ();
+    tests = _list_reverse (tests);
 
     memset (&runner, 0, sizeof (runner));
     runner.num_device_offsets = 1;
@@ -768,7 +756,8 @@ main (int argc, char **argv)
 				 runner.base.num_targets);
     }
 
-    for (test = tests; test != NULL; test = test->next) {
+    for (test_list = tests; test_list != NULL; test_list = test_list->next) {
+	const cairo_test_t *test = test_list->test;
 	cairo_test_context_t ctx;
 	cairo_test_status_t status;
 	cairo_bool_t failed = FALSE, xfailed = FALSE, error = FALSE, crashed = FALSE, skipped = TRUE;
@@ -1097,6 +1086,5 @@ main (int argc, char **argv)
 void
 cairo_test_register (cairo_test_t *test)
 {
-    test->next = tests;
-    tests = test;
+    tests = _list_prepend (tests, test);
 }
diff --git a/test/cairo-test.h b/test/cairo-test.h
index 5e342a4..d41cd29 100644
--- a/test/cairo-test.h
+++ b/test/cairo-test.h
@@ -153,7 +153,6 @@ typedef cairo_test_status_t
 (cairo_test_draw_function_t) (cairo_t *cr, int width, int height);
 
 struct _cairo_test {
-    struct _cairo_test *next;
     const char *name;
     const char *description;
     const char *keywords;
@@ -194,7 +193,7 @@ struct _cairo_test {
 void _register_##name (void); \
 void _register_##name (void) { \
     static cairo_test_t test = { \
-	NULL, #name, description, \
+	#name, description, \
 	keywords, requirements, \
 	width, height, \
 	preamble, draw \
-- 
1.7.5.4