[glib: 2/5] Convert tests/slice-color.c to glib test framework

[Philip Withnall <pwithnall src gnome org>]

commit 6211971c418b188bf83512de8e0c4fc9528baff4
Author: Emmanuel Fleury <emmanuel fleury gmail com>
Date:   Sun Mar 20 19:51:06 2022 +0100

    Convert tests/slice-color.c to glib test framework

 tests/slice-color.c | 124 +++++++++++++++++-----------------------------------
 1 file changed, 40 insertions(+), 84 deletions(-)
---
diff --git a/tests/slice-color.c b/tests/slice-color.c
index bcbb9709e8..733bfcc569 100644
--- a/tests/slice-color.c
+++ b/tests/slice-color.c
@@ -14,22 +14,21 @@
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  */
-#include <glib.h>
-#include <string.h>
 
-#define ALIGN(size, base)       ((base) * (gsize) (((size) + (base) - 1) / (base)))
+#include <glib.h>
 
-static gdouble parse_memsize (const gchar *cstring);
-static void    usage         (void);
+#define ALIGN(size, base) \
+  ((base) * (gsize) (((size) + (base) - 1) / (base)))
 
 static void
 fill_memory (guint **mem,
              guint   n,
              guint   val)
 {
-  guint j, o = 0;
+  guint j;
+
   for (j = 0; j < n; j++)
-    mem[j][o] = val;
+    mem[j][0] = val;
 }
 
 static guint64
@@ -40,15 +39,17 @@ access_memory3 (guint  **mema,
                 guint64  repeats)
 {
   guint64 accu = 0, i, j;
-  const guint o = 0;
+
   for (i = 0; i < repeats; i++)
     {
       for (j = 1; j < n; j += 2)
-        memd[j][o] = mema[j][o] + memb[j][o];
+        memd[j][0] = mema[j][0] + memb[j][0];
     }
+
   for (i = 0; i < repeats; i++)
     for (j = 0; j < n; j++)
-      accu += memd[j][o];
+      accu += memd[j][0];
+
   return accu;
 }
 
@@ -57,31 +58,36 @@ touch_mem (guint64 block_size,
            guint64 n_blocks,
            guint64 repeats)
 {
-  guint64 j, accu, n = n_blocks;
   GTimer *timer;
-  guint **memc;
-  guint **memb;
-  guint **mema = g_new (guint*, n);
+  guint **mema, **memb, **memc;
+  guint64 j, accu, n = n_blocks;
+
+  mema = g_new (guint*, n);
   for (j = 0; j < n; j++)
     mema[j] = g_slice_alloc (block_size);
+
   memb = g_new (guint*, n);
   for (j = 0; j < n; j++)
     memb[j] = g_slice_alloc (block_size);
+
   memc = g_new (guint*, n);
   for (j = 0; j < n; j++)
     memc[j] = g_slice_alloc (block_size);
 
   timer = g_timer_new();
+
   fill_memory (mema, n, 2);
   fill_memory (memb, n, 3);
   fill_memory (memc, n, 4);
+
   access_memory3 (mema, memb, memc, n, 3);
+
   g_timer_start (timer);
   accu = access_memory3 (mema, memb, memc, n, repeats);
   g_timer_stop (timer);
 
-  g_print ("Access-time = %fs\n", g_timer_elapsed (timer, NULL));
-  g_assert (accu / repeats == (2 + 3) * n / 2 + 4 * n / 2);
+  g_test_message ("Access-time = %fs", g_timer_elapsed (timer, NULL));
+  g_assert_cmpuint (accu / repeats, ==, (2 + 3) * n / 2 + 4 * n / 2);
 
   for (j = 0; j < n; j++)
     {
@@ -89,6 +95,7 @@ touch_mem (guint64 block_size,
       g_slice_free1 (block_size, memb[j]);
       g_slice_free1 (block_size, memc[j]);
     }
+
   g_timer_destroy (timer);
   g_free (mema);
   g_free (memb);
@@ -96,82 +103,31 @@ touch_mem (guint64 block_size,
 }
 
 static void
-usage (void)
-{
-  g_print ("Usage: slice-color <block-size> [memory-size] [repeats] [colorization]\n");
-}
-
-int
-main (int   argc,
-      char *argv[])
+test_slice_colors (void)
 {
-  guint64 block_size = 512, area_size = 1024 * 1024, n_blocks, repeats = 1000000;
-
-  if (argc > 1)
-    block_size = parse_memsize (argv[1]);
-  else
-    {
-      usage();
-      block_size = 512;
-    }
-  if (argc > 2)
-    area_size = parse_memsize (argv[2]);
-  if (argc > 3)
-    repeats = parse_memsize (argv[3]);
-  if (argc > 4)
-    g_slice_set_config (G_SLICE_CONFIG_COLOR_INCREMENT, parse_memsize (argv[4]));
+  guint64 block_size = 512;
+  guint64 area_size = 1024 * 1024;
+  guint64 n_blocks, repeats = 1000000;
 
   /* figure number of blocks from block and area size.
-   * divide area by 3 because touch_mem() allocates 3 areas
-   */
+   * divide area by 3 because touch_mem() allocates 3 areas */
   n_blocks = area_size / 3 / ALIGN (block_size, sizeof (gsize) * 2);
 
-  /* basic sanity checks */
-  if (!block_size || !n_blocks || block_size >= area_size)
-    {
-      g_printerr ("Invalid arguments: block-size=%" G_GUINT64_FORMAT " memory-size=%" G_GUINT64_FORMAT "\n", 
block_size, area_size);
-      usage();
-      return 1;
-    }
-
-  g_printerr ("Will allocate and touch %" G_GUINT64_FORMAT " blocks of %" G_GUINT64_FORMAT " bytes (= %" 
G_GUINT64_FORMAT " bytes) %" G_GUINT64_FORMAT " times with color increment: 0x%08" G_GINT64_MODIFIER "x\n",
-              n_blocks, block_size, n_blocks * block_size, repeats,
-             (guint64)g_slice_get_config (G_SLICE_CONFIG_COLOR_INCREMENT));
+  g_test_message ("Allocate and touch %" G_GUINT64_FORMAT
+                  " blocks of %" G_GUINT64_FORMAT " bytes"
+                  " (= %" G_GUINT64_FORMAT " bytes) %" G_GUINT64_FORMAT
+                  " times with color increment",
+                  n_blocks, block_size, n_blocks * block_size, repeats);
 
   touch_mem (block_size, n_blocks, repeats);
-  
-  return 0;
 }
 
-static gdouble
-parse_memsize (const gchar *cstring)
+int
+main (int argc, char **argv)
 {
-  gchar *mem = g_strdup (cstring);
-  gchar *string = g_strstrip (mem);
-  guint l = strlen (string);
-  gdouble f = 0;
-  gchar *derr = NULL;
-  gdouble msize;
-
-  switch (l ? string[l - 1] : 0)
-    {
-    case 'k':   f = 1000;               break;
-    case 'K':   f = 1024;               break;
-    case 'm':   f = 1000000;            break;
-    case 'M':   f = 1024 * 1024;        break;
-    case 'g':   f = 1000000000;         break;
-    case 'G':   f = 1024 * 1024 * 1024; break;
-    }
-  if (f)
-    string[l - 1] = 0;
-  msize = g_ascii_strtod (string, &derr);
-  g_free (mem);
-  if (derr && *derr)
-    {
-      g_printerr ("failed to parse number at: %s\n", derr);
-      msize = 0;
-    }
-  if (f)
-    msize *= f;
-  return msize;
+  g_test_init (&argc, &argv, NULL);
+
+  g_test_add_func ("/slice/colors", test_slice_colors);
+
+  return g_test_run ();
 }