Refactor optional parameter check tests

Remove tests related to NULL pointers,
keep tests related to invalid enum values.
Remove test code related to MBEDTLS_CHECK_PARAMS.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
diff --git a/tests/include/test/helpers.h b/tests/include/test/helpers.h
index 9bfe085..087f2de 100644
--- a/tests/include/test/helpers.h
+++ b/tests/include/test/helpers.h
@@ -175,95 +175,6 @@
 int mbedtls_test_hexcmp( uint8_t * a, uint8_t * b,
                          uint32_t a_len, uint32_t b_len );
 
-#if defined(MBEDTLS_CHECK_PARAMS)
-
-typedef struct
-{
-    const char *failure_condition;
-    const char *file;
-    int line;
-}
-mbedtls_test_param_failed_location_record_t;
-
-/**
- * \brief   Get the location record of the last call to
- *          mbedtls_test_param_failed().
- *
- * \note    The call expectation is set up and active until the next call to
- *          mbedtls_test_param_failed_check_expected_call() or
- *          mbedtls_param_failed() that cancels it.
- */
-void mbedtls_test_param_failed_get_location_record(
-         mbedtls_test_param_failed_location_record_t *location_record );
-
-/**
- * \brief   State that a call to mbedtls_param_failed() is expected.
- *
- * \note    The call expectation is set up and active until the next call to
- *          mbedtls_test_param_failed_check_expected_call() or
- *          mbedtls_param_failed that cancel it.
- */
-void mbedtls_test_param_failed_expect_call( void );
-
-/**
- * \brief   Check whether mbedtls_param_failed() has been called as expected.
- *
- * \note    Check whether mbedtls_param_failed() has been called between the
- *          last call to mbedtls_test_param_failed_expect_call() and the call
- *          to this function.
- *
- * \return  \c 0 Since the last call to mbedtls_param_failed_expect_call(),
- *               mbedtls_param_failed() has been called.
- *          \c -1 Otherwise.
- */
-int mbedtls_test_param_failed_check_expected_call( void );
-
-/**
- * \brief   Get the address of the object of type jmp_buf holding the execution
- *          state information used by mbedtls_param_failed() to do a long jump.
- *
- * \note    If a call to mbedtls_param_failed() is not expected in the sense
- *          that there is no call to mbedtls_test_param_failed_expect_call()
- *          preceding it, then mbedtls_param_failed() will try to restore the
- *          execution to the state stored in the jmp_buf object whose address
- *          is returned by the present function.
- *
- * \note    This function is intended to provide the parameter of the
- *          setjmp() function to set-up where mbedtls_param_failed() should
- *          long-jump if it has to. It is foreseen to be used as:
- *
- *          setjmp( mbedtls_test_param_failed_get_state_buf() ).
- *
- * \note    The type of the returned value is not jmp_buf as jmp_buf is an
- *          an array type (C specification) and a function cannot return an
- *          array type.
- *
- * \note    The type of the returned value is not jmp_buf* as then the return
- *          value couldn't be used by setjmp(), as its parameter's type is
- *          jmp_buf.
- *
- * \return  Address of the object of type jmp_buf holding the execution state
- *          information used by mbedtls_param_failed() to do a long jump.
- */
-void* mbedtls_test_param_failed_get_state_buf( void );
-
-/**
- * \brief   Reset the execution state used by mbedtls_param_failed() to do a
- *          long jump.
- *
- * \note    If a call to mbedtls_param_failed() is not expected in the sense
- *          that there is no call to mbedtls_test_param_failed_expect_call()
- *          preceding it, then mbedtls_param_failed() will try to restore the
- *          execution state that this function reset.
- *
- * \note    It is recommended to reset the execution state when the state
- *          is not relevant anymore. That way an unexpected call to
- *          mbedtls_param_failed() will not trigger a long jump with
- *          undefined behavior but rather a long jump that will rather fault.
- */
-void mbedtls_test_param_failed_reset_state( void );
-#endif /* MBEDTLS_CHECK_PARAMS */
-
 #if defined(MBEDTLS_PSA_CRYPTO_C) && defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG)
 #include "test/fake_external_rng_for_test.h"
 #endif
diff --git a/tests/include/test/macros.h b/tests/include/test/macros.h
index 450bc2c..cad39aa 100644
--- a/tests/include/test/macros.h
+++ b/tests/include/test/macros.h
@@ -58,10 +58,6 @@
  *          It allows a library function to return a value and return an error
  *          code that can be tested.
  *
- *          When MBEDTLS_CHECK_PARAMS is enabled, calls to the parameter failure
- *          callback, MBEDTLS_PARAM_FAILED(), will be assumed to be a test
- *          failure.
- *
  *          This macro is not suitable for negative parameter validation tests,
  *          as it assumes the test step will not create an error.
  *
@@ -182,70 +178,11 @@
     } while( 0 )
 
 #if defined(MBEDTLS_CHECK_PARAMS) && !defined(MBEDTLS_PARAM_FAILED_ALT)
-/**
- * \brief   This macro tests the statement passed to it as a test step or
- *          individual test in a test case. The macro assumes the test will fail
- *          and will generate an error.
- *
- *          It allows a library function to return a value and tests the return
- *          code on return to confirm the given error code was returned.
- *
- *          When MBEDTLS_CHECK_PARAMS is enabled, calls to the parameter failure
- *          callback, MBEDTLS_PARAM_FAILED(), are assumed to indicate the
- *          expected failure, and the test will pass.
- *
- *          This macro is intended for negative parameter validation tests,
- *          where the failing function may return an error value or call
- *          MBEDTLS_PARAM_FAILED() to indicate the error.
- *
- * \param   PARAM_ERROR_VALUE   The expected error code.
- *
- * \param   TEST                The test expression to be tested.
- */
-#define TEST_INVALID_PARAM_RET( PARAM_ERR_VALUE, TEST )                 \
-    do {                                                                \
-        mbedtls_test_param_failed_expect_call( );                       \
-        if( ( ( TEST ) != ( PARAM_ERR_VALUE ) ) ||                      \
-            ( mbedtls_test_param_failed_check_expected_call( ) != 0 ) ) \
-        {                                                               \
-            mbedtls_test_fail( #TEST, __LINE__, __FILE__ );             \
-            goto exit;                                                  \
-        }                                                               \
-        mbedtls_test_param_failed_check_expected_call( );               \
-   } while( 0 )
+#define TEST_INVALID_PARAM_RET( PARAM_ERR_VALUE, TEST )     \
+    do { if( ( TEST ) != ( PARAM_ERR_VALUE ) ) goto exit; } while( 0 )
 
-/**
- * \brief   This macro tests the statement passed to it as a test step or
- *          individual test in a test case. The macro assumes the test will fail
- *          and will generate an error.
- *
- *          It assumes the library function under test cannot return a value and
- *          assumes errors can only be indicated byt calls to
- *          MBEDTLS_PARAM_FAILED().
- *
- *          When MBEDTLS_CHECK_PARAMS is enabled, calls to the parameter failure
- *          callback, MBEDTLS_PARAM_FAILED(), are assumed to indicate the
- *          expected failure. If MBEDTLS_CHECK_PARAMS is not enabled, no test
- *          can be made.
- *
- *          This macro is intended for negative parameter validation tests,
- *          where the failing function can only return an error by calling
- *          MBEDTLS_PARAM_FAILED() to indicate the error.
- *
- * \param   TEST                The test expression to be tested.
- */
-#define TEST_INVALID_PARAM( TEST )                                       \
-    do {                                                                 \
-        memcpy( jmp_tmp, mbedtls_test_param_failed_get_state_buf( ),     \
-                sizeof( jmp_tmp ) );                                     \
-        if( setjmp(  mbedtls_test_param_failed_get_state_buf( ) ) == 0 ) \
-        {                                                                \
-            TEST;                                                        \
-            mbedtls_test_fail( #TEST, __LINE__, __FILE__ );              \
-            goto exit;                                                   \
-        }                                                                \
-        mbedtls_test_param_failed_reset_state( );                        \
-    } while( 0 )
+#define TEST_INVALID_PARAM( TEST )                          \
+    do { TEST; } while( 0 )
 #endif /* MBEDTLS_CHECK_PARAMS && !MBEDTLS_PARAM_FAILED_ALT */
 
 /**
@@ -256,11 +193,6 @@
  *          assumes errors can only be indicated by calls to
  *          MBEDTLS_PARAM_FAILED().
  *
- *          When MBEDTLS_CHECK_PARAMS is enabled, calls to the parameter failure
- *          callback, MBEDTLS_PARAM_FAILED(), are assumed to indicate the
- *          expected failure. If MBEDTLS_CHECK_PARAMS is not enabled, no test
- *          can be made.
- *
  *          This macro is intended to test that functions returning void
  *          accept all of the parameter values they're supposed to accept - eg
  *          that they don't call MBEDTLS_PARAM_FAILED() when a parameter
@@ -271,12 +203,6 @@
  *          accept is best done by using TEST_ASSERT() and checking the return
  *          value as well.
  *
- *          Note: this macro is available even when #MBEDTLS_CHECK_PARAMS is
- *          disabled, as it makes sense to check that the functions accept all
- *          legal values even if this option is disabled - only in that case,
- *          the test is more about whether the function segfaults than about
- *          whether it invokes MBEDTLS_PARAM_FAILED().
- *
  * \param   TEST                The test expression to be tested.
  */
 #define TEST_VALID_PARAM( TEST )                                    \