Added framework as a flattened directory

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
diff --git a/framework/tests/include/test/helpers.h b/framework/tests/include/test/helpers.h
new file mode 100644
index 0000000..d08100f
--- /dev/null
+++ b/framework/tests/include/test/helpers.h
@@ -0,0 +1,404 @@
+/**
+ * \file helpers.h
+ *
+ * \brief   This file contains the prototypes of helper functions for the
+ *          purpose of testing.
+ */
+
+/*
+ *  Copyright The Mbed TLS Contributors
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+ */
+
+#ifndef TEST_HELPERS_H
+#define TEST_HELPERS_H
+
+/* Most fields of publicly available structs are private and are wrapped with
+ * MBEDTLS_PRIVATE macro. This define allows tests to access the private fields
+ * directly (without using the MBEDTLS_PRIVATE wrapper). */
+#define MBEDTLS_ALLOW_PRIVATE_ACCESS
+
+#include "mbedtls/build_info.h"
+
+#if defined(__SANITIZE_ADDRESS__) /* gcc -fsanitize=address */
+#  define MBEDTLS_TEST_HAVE_ASAN
+#endif
+#if defined(__SANITIZE_THREAD__) /* gcc -fsanitize-thread */
+#  define MBEDTLS_TEST_HAVE_TSAN
+#endif
+
+#if defined(__has_feature)
+#  if __has_feature(address_sanitizer) /* clang -fsanitize=address */
+#    define MBEDTLS_TEST_HAVE_ASAN
+#  endif
+#  if __has_feature(memory_sanitizer) /* clang -fsanitize=memory */
+#    define MBEDTLS_TEST_HAVE_MSAN
+#  endif
+#  if __has_feature(thread_sanitizer) /* clang -fsanitize=thread */
+#    define MBEDTLS_TEST_HAVE_TSAN
+#  endif
+#endif
+
+#include "test/threading_helpers.h"
+
+#if defined(MBEDTLS_TEST_MUTEX_USAGE)
+#include "mbedtls/threading.h"
+#endif
+
+#include "mbedtls/platform.h"
+
+#include <stddef.h>
+#include <stdint.h>
+
+#if defined(MBEDTLS_BIGNUM_C)
+#include "mbedtls/bignum.h"
+#endif
+
+/** The type of test case arguments that contain binary data. */
+typedef struct data_tag {
+    uint8_t *x;
+    uint32_t    len;
+} data_t;
+
+typedef enum {
+    MBEDTLS_TEST_RESULT_SUCCESS = 0,
+    MBEDTLS_TEST_RESULT_FAILED,
+    MBEDTLS_TEST_RESULT_SKIPPED
+} mbedtls_test_result_t;
+
+#define MBEDTLS_TEST_LINE_LENGTH 76
+
+typedef struct {
+    mbedtls_test_result_t result;
+    const char *test;
+    const char *filename;
+    int line_no;
+    unsigned long step;
+    char line1[MBEDTLS_TEST_LINE_LENGTH];
+    char line2[MBEDTLS_TEST_LINE_LENGTH];
+#if defined(MBEDTLS_TEST_MUTEX_USAGE)
+    const char *mutex_usage_error;
+#endif
+#if defined(MBEDTLS_BIGNUM_C)
+    unsigned case_uses_negative_0;
+#endif
+}
+mbedtls_test_info_t;
+
+/**
+ * \brief           Get the current test result status
+ *
+ * \return          The current test result status
+ */
+mbedtls_test_result_t mbedtls_test_get_result(void);
+
+/**
+ * \brief           Get the current test name/description
+ *
+ * \return          The current test name/description
+ */
+const char *mbedtls_test_get_test(void);
+
+/**
+ * \brief           Get the current test filename
+ *
+ * \return          The current test filename
+ */
+const char *mbedtls_get_test_filename(void);
+
+/**
+ * \brief           Get the current test file line number (for failure / skip)
+ *
+ * \return          The current test file line number (for failure / skip)
+ */
+int mbedtls_test_get_line_no(void);
+
+/**
+ * \brief           Increment the current test step.
+ *
+ * \note            It is not recommended for multiple threads to call this
+ *                  function concurrently - whilst it is entirely thread safe,
+ *                  the order of calls to this function can obviously not be
+ *                  ensured, so unexpected results may occur.
+ */
+void mbedtls_test_increment_step(void);
+
+/**
+ * \brief           Get the current test step
+ *
+ * \return          The current test step
+ */
+unsigned long mbedtls_test_get_step(void);
+
+/**
+ * \brief           Get the current test line buffer 1
+ *
+ * \param line      Buffer of minimum size \c MBEDTLS_TEST_LINE_LENGTH,
+ *                  which will have line buffer 1 copied to it.
+ */
+void mbedtls_test_get_line1(char *line);
+
+/**
+ * \brief           Get the current test line buffer 2
+ *
+ * \param line      Buffer of minimum size \c MBEDTLS_TEST_LINE_LENGTH,
+ *                  which will have line buffer 1 copied to it.
+ */
+void mbedtls_test_get_line2(char *line);
+
+#if defined(MBEDTLS_TEST_MUTEX_USAGE)
+/**
+ * \brief           Get the current mutex usage error message
+ *
+ * \return          The current mutex error message (may be NULL if no error)
+ */
+const char *mbedtls_test_get_mutex_usage_error(void);
+
+/**
+ * \brief           Set the current mutex usage error message
+ *
+ * \note            This will only set the mutex error message if one has not
+ *                  already been set, or if we are clearing the message (msg is
+ *                  NULL)
+ *
+ * \param msg       Error message to set (can be NULL to clear)
+ */
+void mbedtls_test_set_mutex_usage_error(const char *msg);
+#endif
+
+#if defined(MBEDTLS_BIGNUM_C)
+
+/**
+ * \brief           Get whether the current test is a bignum test that uses
+ *                  negative zero.
+ *
+ * \return          non zero if the current test uses bignum negative zero.
+ */
+unsigned mbedtls_test_get_case_uses_negative_0(void);
+
+/**
+ * \brief           Indicate that the current test uses bignum negative zero.
+ *
+ * \note            This function is called if the current test case had an
+ *                  input parsed with mbedtls_test_read_mpi() that is a negative
+ *                  0 (`"-"`, `"-0"`, `"-00"`, etc., constructing a result with
+ *                  the sign bit set to -1 and the value being all-limbs-0,
+ *                  which is not a valid representation in #mbedtls_mpi but is
+ *                  tested for robustness). *
+ */
+void  mbedtls_test_increment_case_uses_negative_0(void);
+#endif
+
+int mbedtls_test_platform_setup(void);
+void mbedtls_test_platform_teardown(void);
+
+/**
+ * \brief           Record the current test case as a failure.
+ *
+ *                  This function can be called directly however it is usually
+ *                  called via macros such as TEST_ASSERT, TEST_EQUAL,
+ *                  PSA_ASSERT, etc...
+ *
+ * \note            If the test case was already marked as failed, calling
+ *                  `mbedtls_test_fail( )` again will not overwrite any
+ *                  previous information about the failure.
+ *
+ * \param test      Description of the failure or assertion that failed. This
+ *                  MUST be a string literal.
+ * \param line_no   Line number where the failure originated.
+ * \param filename  Filename where the failure originated.
+ */
+void mbedtls_test_fail(const char *test, int line_no, const char *filename);
+
+/**
+ * \brief           Record the current test case as skipped.
+ *
+ *                  This function can be called directly however it is usually
+ *                  called via the TEST_ASSUME macro.
+ *
+ * \param test      Description of the assumption that caused the test case to
+ *                  be skipped. This MUST be a string literal.
+ * \param line_no   Line number where the test case was skipped.
+ * \param filename  Filename where the test case was skipped.
+ */
+void mbedtls_test_skip(const char *test, int line_no, const char *filename);
+
+/**
+ * \brief           Set the test step number for failure reports.
+ *
+ *                  Call this function to display "step NNN" in addition to the
+ *                  line number and file name if a test fails. Typically the
+ *                  "step number" is the index of a for loop but it can be
+ *                  whatever you want.
+ *
+ * \note            It is not recommended for multiple threads to call this
+ *                  function concurrently - whilst it is entirely thread safe,
+ *                  the order of calls to this function can obviously not be
+ *                  ensured, so unexpected results may occur.
+ *
+ * \param step  The step number to report.
+ */
+void mbedtls_test_set_step(unsigned long step);
+
+/**
+ * \brief           Reset mbedtls_test_info to a ready/starting state.
+ */
+void mbedtls_test_info_reset(void);
+
+#ifdef MBEDTLS_TEST_MUTEX_USAGE
+/**
+ * \brief           Get the test info data mutex.
+ *
+ * \note            This is designed only to be used by threading_helpers to
+ *                  avoid a deadlock, not for general access to this mutex.
+ *
+ * \return          The test info data mutex.
+ */
+mbedtls_threading_mutex_t *mbedtls_test_get_info_mutex(void);
+
+#endif /* MBEDTLS_TEST_MUTEX_USAGE */
+
+/**
+ * \brief Record the current test case as a failure if two integers
+ *                  have a different value.
+ *
+ *                  This function is usually called via the macro
+ *                  #TEST_EQUAL.
+ *
+ * \param test      Description of the failure or assertion that failed. This
+ *                  MUST be a string literal. This normally has the form
+ *                  "EXPR1 == EXPR2" where EXPR1 has the value \p value1
+ *                  and EXPR2 has the value \p value2.
+ * \param line_no   Line number where the failure originated.
+ * \param filename  Filename where the failure originated.
+ * \param value1    The first value to compare.
+ * \param value2    The second value to compare.
+ *
+ * \return          \c 1 if the values are equal, otherwise \c 0.
+ */
+int mbedtls_test_equal(const char *test, int line_no, const char *filename,
+                       unsigned long long value1, unsigned long long value2);
+
+/**
+ * \brief           Record the current test case as a failure based
+ *                  on comparing two unsigned integers.
+ *
+ *                  This function is usually called via the macro
+ *                  #TEST_LE_U.
+ *
+ * \param test      Description of the failure or assertion that failed. This
+ *                  MUST be a string literal. This normally has the form
+ *                  "EXPR1 <= EXPR2" where EXPR1 has the value \p value1
+ *                  and EXPR2 has the value \p value2.
+ * \param line_no   Line number where the failure originated.
+ * \param filename  Filename where the failure originated.
+ * \param value1    The first value to compare.
+ * \param value2    The second value to compare.
+ *
+ * \return          \c 1 if \p value1 <= \p value2, otherwise \c 0.
+ */
+int mbedtls_test_le_u(const char *test, int line_no, const char *filename,
+                      unsigned long long value1, unsigned long long value2);
+
+/**
+ * \brief           Record the current test case as a failure based
+ *                  on comparing two signed integers.
+ *
+ *                  This function is usually called via the macro
+ *                  #TEST_LE_S.
+ *
+ * \param test      Description of the failure or assertion that failed. This
+ *                  MUST be a string literal. This normally has the form
+ *                  "EXPR1 <= EXPR2" where EXPR1 has the value \p value1
+ *                  and EXPR2 has the value \p value2.
+ * \param line_no   Line number where the failure originated.
+ * \param filename  Filename where the failure originated.
+ * \param value1    The first value to compare.
+ * \param value2    The second value to compare.
+ *
+ * \return          \c 1 if \p value1 <= \p value2, otherwise \c 0.
+ */
+int mbedtls_test_le_s(const char *test, int line_no, const char *filename,
+                      long long value1, long long value2);
+
+/**
+ * \brief          This function decodes the hexadecimal representation of
+ *                 data.
+ *
+ * \note           The output buffer can be the same as the input buffer. For
+ *                 any other overlapping of the input and output buffers, the
+ *                 behavior is undefined.
+ *
+ * \param obuf     Output buffer.
+ * \param obufmax  Size in number of bytes of \p obuf.
+ * \param ibuf     Input buffer.
+ * \param len      The number of unsigned char written in \p obuf. This must
+ *                 not be \c NULL.
+ *
+ * \return         \c 0 on success.
+ * \return         \c -1 if the output buffer is too small or the input string
+ *                 is not a valid hexadecimal representation.
+ */
+int mbedtls_test_unhexify(unsigned char *obuf, size_t obufmax,
+                          const char *ibuf, size_t *len);
+
+void mbedtls_test_hexify(unsigned char *obuf,
+                         const unsigned char *ibuf,
+                         int len);
+
+/**
+ * \brief Convert hexadecimal digit to an integer.
+ *
+ * \param c        The digit to convert (`'0'` to `'9'`, `'A'` to `'F'` or
+ *                 `'a'` to `'f'`).
+ * \param[out] uc  On success, the value of the digit (0 to 15).
+ *
+ * \return         0 on success, -1 if \p c is not a hexadecimal digit.
+ */
+int mbedtls_test_ascii2uc(const char c, unsigned char *uc);
+
+/**
+ * Allocate and zeroize a buffer.
+ *
+ * If the size if zero, a pointer to a zeroized 1-byte buffer is returned.
+ *
+ * For convenience, dies if allocation fails.
+ */
+unsigned char *mbedtls_test_zero_alloc(size_t len);
+
+/**
+ * Allocate and fill a buffer from hex data.
+ *
+ * The buffer is sized exactly as needed. This allows to detect buffer
+ * overruns (including overreads) when running the test suite under valgrind.
+ *
+ * If the size if zero, a pointer to a zeroized 1-byte buffer is returned.
+ *
+ * For convenience, dies if allocation fails.
+ */
+unsigned char *mbedtls_test_unhexify_alloc(const char *ibuf, size_t *olen);
+
+int mbedtls_test_hexcmp(uint8_t *a, uint8_t *b,
+                        uint32_t a_len, uint32_t b_len);
+
+#if defined(MBEDTLS_PSA_CRYPTO_C) && defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG)
+#include "test/fake_external_rng_for_test.h"
+#endif
+
+#if defined(MBEDTLS_TEST_HOOKS)
+/**
+ * \brief   Check that only a pure high-level error code is being combined with
+ *          a pure low-level error code as otherwise the resultant error code
+ *          would be corrupted.
+ *
+ * \note    Both high-level and low-level error codes cannot be greater than
+ *          zero however can be zero. If one error code is zero then the
+ *          other error code is returned even if both codes are zero.
+ *
+ * \note    If the check fails, fail the test currently being run.
+ */
+void mbedtls_test_err_add_check(int high, int low,
+                                const char *file, int line);
+#endif
+
+#endif /* TEST_HELPERS_H */