Minor restructuring to tests.

tests/test_common/ma_test_common.c

@@ -0,0 +1,37 @@
+#define MINIAUDIO_IMPLEMENTATION
+#include "../../miniaudio.h"
+
+#include <stdio.h>
+
+#define MAX_TESTS   64
+
+typedef int (* ma_test_entry_proc)(int argc, char** argv);
+
+typedef struct
+{
+    const char* pName;
+    ma_test_entry_proc onEntry;
+} ma_test;
+
+struct
+{
+    ma_test pTests[MAX_TESTS];
+    size_t count;
+} g_Tests;
+
+ma_result ma_register_test(const char* pName, ma_test_entry_proc onEntry)
+{
+    MA_ASSERT(pName != NULL);
+    MA_ASSERT(onEntry != NULL);
+
+    if (g_Tests.count >= MAX_TESTS) {
+        printf("Failed to register test %s because there are too many tests already registered. Increase the value of MAX_TESTS\n", pName);
+        return MA_INVALID_OPERATION;
+    }
+
+    g_Tests.pTests[g_Tests.count].pName   = pName;
+    g_Tests.pTests[g_Tests.count].onEntry = onEntry;
+    g_Tests.count += 1;
+
+    return MA_SUCCESS;
+}