[glib] gtestutils: Clarify that test fixtures are allocated by GLib

[Philip Withnall <pwithnall src gnome org>]

commit 7dd7c04148dac716ce2eb7df72056d739efa3c30
Author: Philip Withnall <philip withnall collabora co uk>
Date:   Fri Jan 16 09:10:46 2015 +0000

    gtestutils: Clarify that test fixtures are allocated by GLib
    
    Make it a little clearer that the user’s fixture setup and teardown
    functions don’t have to do the allocation or freeing.

 glib/gtestutils.c |   17 +++++++++--------
 1 files changed, 9 insertions(+), 8 deletions(-)
---
diff --git a/glib/gtestutils.c b/glib/gtestutils.c
index ada924b..056afbd 100644
--- a/glib/gtestutils.c
+++ b/glib/gtestutils.c
@@ -1511,11 +1511,11 @@ g_test_run (void)
  * Create a new #GTestCase, named @test_name, this API is fairly
  * low level, calling g_test_add() or g_test_add_func() is preferable.
  * When this test is executed, a fixture structure of size @data_size
- * will be allocated and filled with 0s. Then @data_setup is called
- * to initialize the fixture. After fixture setup, the actual test
- * function @data_test is called. Once the test run completed, the
- * fixture structure is torn down  by calling @data_teardown and
- * after that the memory is released.
+ * will be automatically allocated and filled with zeros. Then @data_setup is
+ * called to initialize the fixture. After fixture setup, the actual test
+ * function @data_test is called. Once the test run completes, the
+ * fixture structure is torn down by calling @data_teardown and
+ * after that the memory is automatically released by the test framework.
  *
  * Splitting up a test run into fixture setup, test function and
  * fixture teardown is most useful if the same fixture is used for
@@ -3342,11 +3342,12 @@ g_test_get_filename (GTestFileType  file_type,
  * @fteardown: The function to tear down the fixture data.
  *
  * Hook up a new test case at @testpath, similar to g_test_add_func().
- * A fixture data structure with setup and teardown function may be provided
- * though, similar to g_test_create_case().
+ * A fixture data structure with setup and teardown functions may be provided,
+ * similar to g_test_create_case().
+ *
  * g_test_add() is implemented as a macro, so that the fsetup(), ftest() and
  * fteardown() callbacks can expect a @Fixture pointer as first argument in
- * a type safe manner.
+ * a type safe manner. They otherwise have type #GTestFixtureFunc.
  *
  * Since: 2.16
  **/