From 8dcb28cf6dd1c68810e7aa857bb6f2a778bef4de Mon Sep 17 00:00:00 2001
From: Thomas Turner <thomastdt@googlemail.com>
Date: Thu, 22 Dec 2016 16:12:36 -0800
Subject: [PATCH] avutil/tests: Improved code coverage for random_seed

Signed-off-by: Thomas Turner <thomastdt@googlemail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 libavutil/tests/random_seed.c | 34 +++++++++++++++++++++-------------
 tests/ref/fate/random_seed    |  1 +
 2 files changed, 22 insertions(+), 13 deletions(-)

diff --git a/libavutil/tests/random_seed.c b/libavutil/tests/random_seed.c
index ebe9b3e7dd..f45e198213 100644
--- a/libavutil/tests/random_seed.c
+++ b/libavutil/tests/random_seed.c
@@ -23,24 +23,32 @@
 
 #undef printf
 #define N 256
+#define F 2
 #include <stdio.h>
 
+typedef uint32_t (*random_seed_ptr_t)(void);
+
 int main(void)
 {
-    int i, j, retry;
+    int i, j, rsf, retry;
     uint32_t seeds[N];
+    random_seed_ptr_t random_seed[F] = {av_get_random_seed, get_generic_seed};
 
-    for (retry=0; retry<3; retry++){
-        for (i=0; i<N; i++){
-            seeds[i] = av_get_random_seed();
-            for (j=0; j<i; j++)
-                if (seeds[j] == seeds[i])
-                    goto retry;
+    for (rsf=0; rsf<F; ++rsf){
+        for (retry=0; retry<3; retry++){
+            for (i=0; i<N; i++){
+                seeds[i] = random_seed[rsf]();
+                for (j=0; j<i; j++)
+                    if (seeds[j] == seeds[i])
+                        goto retry;
+            }
+            printf("seeds OK\n");
+            goto next;
+            retry:;
         }
-        printf("seeds OK\n");
-        return 0;
-        retry:;
+        printf("rsf %d: FAIL at %d with %X\n", rsf, j, seeds[j]);
+        return 1;
+        next:;
     }
-    printf("FAIL at %d with %X\n", j, seeds[j]);
-    return 1;
-}
+    return 0;
+ }
diff --git a/tests/ref/fate/random_seed b/tests/ref/fate/random_seed
index 2b5b3afe72..ef0eef2603 100644
--- a/tests/ref/fate/random_seed
+++ b/tests/ref/fate/random_seed
@@ -1 +1,2 @@
 seeds OK
+seeds OK