Test/App: Add the original test and app codes from tf-m
The version of the tf-m is:
ac9ccf207e153726b8dc1f5569f702f56d94297f
Change-Id: I445ada360540da55bbe74b3e7aa8d622e8fda501
Signed-off-by: Kevin Peng <kevin.peng@arm.com>
diff --git a/test/suites/ps/secure/s_test_helpers.h b/test/suites/ps/secure/s_test_helpers.h
new file mode 100644
index 0000000..1da7390
--- /dev/null
+++ b/test/suites/ps/secure/s_test_helpers.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2017-2020, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ */
+
+#ifndef __S_TEST_HELPERS_H__
+#define __S_TEST_HELPERS_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * Several tests use a buffer to read back data from an asset. This buffer is
+ * larger than the size of the asset data by PADDING_SIZE bytes. This allows
+ * us to ensure that the only the expected data is read back and that it is read
+ * back correctly.
+ *
+ * For example if the buffer and asset are as follows:
+ * Buffer - "XXXXXXXXXXXX", Asset data - "AAAA"
+ *
+ * Then a correct and successful read would give this result: "XXXXAAAAXXXX"
+ * (Assuming a PADDING_SIZE of 8)
+ */
+#define BUFFER_SIZE 24
+#define PADDING_SIZE 8
+#define HALF_PADDING_SIZE 4
+
+#define BUFFER_PLUS_PADDING_SIZE (BUFFER_SIZE + PADDING_SIZE)
+#define BUFFER_PLUS_HALF_PADDING_SIZE (BUFFER_SIZE + HALF_PADDING_SIZE)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __S_TEST_HELPERS_H__ */