Refactor libavutil/parseutils.c

All tests were in the main method which produces a long main. Now, each test
is in his own method.

I think this produces a more clear code and follows more with the main
priority of FFmpeg "simplicity and small code size"
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

libavutil/parseutils.c

@@ -749,10 +749,8 @@ static uint32_t av_get_random_seed_deterministic(void)
     return randomv = randomv * 1664525 + 1013904223;
 }
 
-int main(void)
+static void test_av_parse_video_rate(void)
 {
-    printf("Testing av_parse_video_rate()\n");
-    {
     int i;
     static const char *const rates[] = {
         "-inf",
@@ -789,10 +787,10 @@ int main(void)
         printf("'%s' -> %d/%d %s\n",
                rates[i], q.num, q.den, ret ? "ERROR" : "OK");
     }
-    }
+}
 
-    printf("\nTesting av_parse_color()\n");
-    {
+static void test_av_parse_color(void)
+{
     int i;
     uint8_t rgba[4];
     static const char *const color_names[] = {
@@ -843,10 +841,10 @@ int main(void)
         else
             printf("%s -> error\n", color_names[i]);
     }
-    }
+}
 
-    printf("\nTesting av_small_strptime()\n");
-    {
+static void test_av_small_strptime(void)
+{
     int i;
     struct tm tm = { 0 };
     struct fmt_timespec_entry {
@@ -872,10 +870,10 @@ int main(void)
             printf("error\n");
         }
     }
-    }
+}
 
-    printf("\nTesting av_parse_time()\n");
-    {
+static void test_av_parse_time(void)
+{
     int i;
     int64_t tv;
     time_t tvi;
@@ -922,7 +920,21 @@ int main(void)
             printf("%+21"PRIi64"\n", tv);
         }
     }
-    }
+}
+
+int main(void)
+{
+    printf("Testing av_parse_video_rate()\n");
+    test_av_parse_video_rate();
+
+    printf("\nTesting av_parse_color()\n");
+    test_av_parse_color();
+
+    printf("\nTesting av_small_strptime()\n");
+    test_av_small_strptime();
+
+    printf("\nTesting av_parse_time()\n");
+    test_av_parse_time();
 
     return 0;
 }