VBoot Reference: Add version checking to for preventing rollbacks.

src/platform/vboot_reference/tests/test_common.c

+/* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ *
+ * Common functions used by tests.
+ */
+
+#include "test_common.h"
+
+#include <stdio.h>
+
+/* ANSI Color coding sequences. */
+#define COL_GREEN "\e[1;32m"
+#define COL_RED "\e[0;31m]"
+#define COL_STOP "\e[m"
+
+/* Global test success flag. */
+int gTestSuccess = 1;
+
+int TEST_EQ(int result, int expected_result, char* testname) {
+  if (result == expected_result) {
+    fprintf(stderr, "%s Test " COL_GREEN " PASSED\n" COL_STOP, testname);
+    return 1;
+  }
+  else {
+    fprintf(stderr, "%s Test " COL_RED " FAILED\n" COL_STOP, testname);
+    gTestSuccess = 0;
+    return 0;
+  }
+}