Added dependency-injected shuffle function

test_array.c

@@ -33,6 +33,10 @@ void add(void *vx, void *vacc) {
 	*acc += *x;
 }
 
+int rng(int x) {
+	return rand() % x;
+}
+
 int main(void) {
 	KekeArray *array = keke_array_alloc(ARRAY_LEN, sizeof(int));
 
@@ -78,7 +82,7 @@ int main(void) {
 	puts("\n");
 
     keke_array_pop(array2, &j);
-    puts("Expected value:\n7, 7, 6, 5, 6,\t0");
+    puts("Expected value:\n7, 7, 6, 5, 6,\t5");
     keke_array_foreach(array2, output);
     printf("\t%d", j);
 	puts("\n");
@@ -147,9 +151,10 @@ int main(void) {
 	printf("Expected value:\n0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 4, 5, 6, 7, 8, 9,\n");
 	keke_array_foreach(array5, output);
 	puts("\n");
-	keke_array_foreach(array, output);
-	puts("\n");
-	keke_array_foreach(array2, output);
+
+	keke_array_shuffle(array5, rng);
+	printf("Expected value:\n2, 0, 3, 7, 3, 1, 8, 2, 2, 1, 3, 5, 6, 2, 9, 4,\n");
+	keke_array_foreach(array5, output);
 	puts("\n");
 
     keke_array_free(array);