diff --git a/tests/include/test/helpers.h b/tests/include/test/helpers.h
index ce8a1e2..8b56d3a 100644
--- a/tests/include/test/helpers.h
+++ b/tests/include/test/helpers.h
@@ -49,10 +49,76 @@
 #include <stddef.h>
 #include <stdint.h>
 
+typedef enum
+{
+    MBEDTLS_TEST_RESULT_SUCCESS = 0,
+    MBEDTLS_TEST_RESULT_FAILED,
+    MBEDTLS_TEST_RESULT_SKIPPED
+} mbedtls_test_result_t;
+
+typedef struct
+{
+    mbedtls_test_result_t result;
+    const char *test;
+    const char *filename;
+    int line_no;
+    unsigned long step;
+}
+mbedtls_test_info_t;
+extern mbedtls_test_info_t mbedtls_test_info;
+
 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.
+ *
+ * \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 );
+
+/**
  * \brief          This function decodes the hexadecimal representation of
  *                 data.
  *
diff --git a/tests/src/helpers.c b/tests/src/helpers.c
index a18f1d4..e323275 100644
--- a/tests/src/helpers.c
+++ b/tests/src/helpers.c
@@ -44,6 +44,8 @@
 static mbedtls_platform_context platform_ctx;
 #endif
 
+mbedtls_test_info_t mbedtls_test_info;
+
 /*----------------------------------------------------------------------------*/
 /* Helper Functions */
 
@@ -77,6 +79,42 @@
     return( 0 );
 }
 
+void mbedtls_test_fail( const char *test, int line_no, const char* filename )
+{
+    if( mbedtls_test_info.result == MBEDTLS_TEST_RESULT_FAILED )
+    {
+        /* We've already recorded the test as having failed. Don't
+         * overwrite any previous information about the failure. */
+        return;
+    }
+    mbedtls_test_info.result = MBEDTLS_TEST_RESULT_FAILED;
+    mbedtls_test_info.test = test;
+    mbedtls_test_info.line_no = line_no;
+    mbedtls_test_info.filename = filename;
+}
+
+void mbedtls_test_skip( const char *test, int line_no, const char* filename )
+{
+    mbedtls_test_info.result = MBEDTLS_TEST_RESULT_SKIPPED;
+    mbedtls_test_info.test = test;
+    mbedtls_test_info.line_no = line_no;
+    mbedtls_test_info.filename = filename;
+}
+
+void mbedtls_test_set_step( unsigned long step )
+{
+    mbedtls_test_info.step = step;
+}
+
+void mbedtls_test_info_reset( void )
+{
+    mbedtls_test_info.result = MBEDTLS_TEST_RESULT_SUCCESS;
+    mbedtls_test_info.step = (unsigned long)( -1 );
+    mbedtls_test_info.test = 0;
+    mbedtls_test_info.line_no = 0;
+    mbedtls_test_info.filename = 0;
+}
+
 int mbedtls_test_unhexify( unsigned char *obuf,
                            size_t obufmax,
                            const char *ibuf,
diff --git a/tests/suites/helpers.function b/tests/suites/helpers.function
index 1dc6721..9762d41 100644
--- a/tests/suites/helpers.function
+++ b/tests/suites/helpers.function
@@ -108,7 +108,7 @@
     do {                                                    \
        if( ! (TEST) )                                       \
        {                                                    \
-          test_fail( #TEST, __LINE__, __FILE__ );           \
+          mbedtls_test_fail( #TEST, __LINE__, __FILE__ );   \
           goto exit;                                        \
        }                                                    \
     } while( 0 )
@@ -201,13 +201,13 @@
  *
  * \param   TEST    The test expression to be tested.
  */
-#define TEST_ASSUME( TEST )                         \
-    do {                                            \
-        if( ! (TEST) )                              \
-        {                                           \
-            test_skip( #TEST, __LINE__, __FILE__ ); \
-            goto exit;                              \
-        }                                           \
+#define TEST_ASSUME( TEST )                                 \
+    do {                                                    \
+        if( ! (TEST) )                                      \
+        {                                                   \
+            mbedtls_test_skip( #TEST, __LINE__, __FILE__ ); \
+            goto exit;                                      \
+        }                                                   \
     } while( 0 )
 
 #if defined(MBEDTLS_CHECK_PARAMS) && !defined(MBEDTLS_PARAM_FAILED_ALT)
@@ -237,7 +237,7 @@
         if( ( ( TEST ) != ( PARAM_ERR_VALUE ) ) ||                      \
             ( mbedtls_test_param_failed_check_expected_call( ) != 0 ) ) \
         {                                                               \
-            test_fail( #TEST, __LINE__, __FILE__ );                     \
+            mbedtls_test_fail( #TEST, __LINE__, __FILE__ );             \
             goto exit;                                                  \
         }                                                               \
         mbedtls_test_param_failed_check_expected_call( );               \
@@ -270,7 +270,7 @@
         if( setjmp(  mbedtls_test_param_failed_get_state_buf( ) ) == 0 ) \
         {                                                                \
             TEST;                                                        \
-            test_fail( #TEST, __LINE__, __FILE__ );                      \
+            mbedtls_test_fail( #TEST, __LINE__, __FILE__ );              \
             goto exit;                                                   \
         }                                                                \
         mbedtls_test_param_failed_reset_state( );                        \
@@ -346,24 +346,6 @@
 /*----------------------------------------------------------------------------*/
 /* Global variables */
 
-typedef enum
-{
-    TEST_RESULT_SUCCESS = 0,
-    TEST_RESULT_FAILED,
-    TEST_RESULT_SKIPPED
-} test_result_t;
-
-typedef struct
-{
-    test_result_t result;
-    const char *test;
-    const char *filename;
-    int line_no;
-    unsigned long step;
-}
-test_info_t;
-static test_info_t test_info;
-
 #if defined(MBEDTLS_CHECK_PARAMS)
 jmp_buf jmp_tmp;
 #endif
@@ -386,41 +368,6 @@
 /*----------------------------------------------------------------------------*/
 /* Helper Functions */
 
-/** 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.
- *
- * \param step  The step number to report.
- */
-void test_set_step( unsigned long step )
-{
-    test_info.step = step;
-}
-
-void test_fail( const char *test, int line_no, const char* filename )
-{
-    if( test_info.result == TEST_RESULT_FAILED )
-    {
-        /* We've already recorded the test as having failed. Don't
-         * overwrite any previous information about the failure. */
-        return;
-    }
-    test_info.result = TEST_RESULT_FAILED;
-    test_info.test = test;
-    test_info.line_no = line_no;
-    test_info.filename = filename;
-}
-
-void test_skip( const char *test, int line_no, const char* filename )
-{
-    test_info.result = TEST_RESULT_SKIPPED;
-    test_info.test = test;
-    test_info.line_no = line_no;
-    test_info.filename = filename;
-}
-
 #if defined(MBEDTLS_PSA_CRYPTO_C)
 /** Check that no PSA Crypto key slots are in use.
  *
@@ -435,7 +382,7 @@
         return 0;
     else
     {
-        test_fail( msg, line_no, filename );
+        mbedtls_test_fail( msg, line_no, filename );
         return 1;
     }
 }
diff --git a/tests/suites/host_test.function b/tests/suites/host_test.function
index 872a3a4..3138c33 100644
--- a/tests/suites/host_test.function
+++ b/tests/suites/host_test.function
@@ -428,15 +428,15 @@
  * \param unmet_dependencies         The array of unmet dependencies.
  * \param missing_unmet_dependencies Non-zero if there was a problem tracking
  *                                   all unmet dependencies, 0 otherwise.
- * \param ret           The test dispatch status (DISPATCH_xxx).
- * \param test_info     A pointer to the test info structure.
+ * \param ret                   The test dispatch status (DISPATCH_xxx).
+ * \param mbedtls_test_info     A pointer to the test info structure.
  */
 static void write_outcome_result( FILE *outcome_file,
                                   size_t unmet_dep_count,
                                   int unmet_dependencies[],
                                   int missing_unmet_dependencies,
                                   int ret,
-                                  const test_info_t *info )
+                                  const mbedtls_test_info_t *info )
 {
     if( outcome_file == NULL )
         return;
@@ -462,10 +462,10 @@
             }
             switch( info->result )
             {
-                case TEST_RESULT_SUCCESS:
+                case MBEDTLS_TEST_RESULT_SUCCESS:
                     mbedtls_fprintf( outcome_file, "PASS;" );
                     break;
-                case TEST_RESULT_SKIPPED:
+                case MBEDTLS_TEST_RESULT_SKIPPED:
                     mbedtls_fprintf( outcome_file, "SKIP;Runtime skip" );
                     break;
                 default:
@@ -601,7 +601,7 @@
     }
 
     /* Initialize the struct that holds information about the last test */
-    memset( &test_info, 0, sizeof( test_info ) );
+    mbedtls_test_info_reset( );
 
     /* Now begin to execute the tests in the testfiles */
     for ( testfile_index = 0;
@@ -638,7 +638,8 @@
             if( ( ret = get_line( file, buf, sizeof(buf) ) ) != 0 )
                 break;
             mbedtls_fprintf( stdout, "%s%.66s",
-                    test_info.result == TEST_RESULT_FAILED ? "\n" : "", buf );
+                    mbedtls_test_info.result == MBEDTLS_TEST_RESULT_FAILED ?
+                    "\n" : "", buf );
             mbedtls_fprintf( stdout, " " );
             for( i = strlen( buf ) + 1; i < 67; i++ )
                 mbedtls_fprintf( stdout, "." );
@@ -682,8 +683,7 @@
             // If there are no unmet dependencies execute the test
             if( unmet_dep_count == 0 )
             {
-                test_info.result = TEST_RESULT_SUCCESS;
-                test_info.step = (unsigned long)( -1 );
+                mbedtls_test_info_reset( );
 
 #if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
                 /* Suppress all output from the library unless we're verbose
@@ -723,7 +723,7 @@
             write_outcome_result( outcome_file,
                                   unmet_dep_count, unmet_dependencies,
                                   missing_unmet_dependencies,
-                                  ret, &test_info );
+                                  ret, &mbedtls_test_info );
             if( unmet_dep_count > 0 || ret == DISPATCH_UNSUPPORTED_SUITE )
             {
                 total_skipped++;
@@ -753,11 +753,11 @@
             }
             else if( ret == DISPATCH_TEST_SUCCESS )
             {
-                if( test_info.result == TEST_RESULT_SUCCESS )
+                if( mbedtls_test_info.result == MBEDTLS_TEST_RESULT_SUCCESS )
                 {
                     mbedtls_fprintf( stdout, "PASS\n" );
                 }
-                else if( test_info.result == TEST_RESULT_SKIPPED )
+                else if( mbedtls_test_info.result == MBEDTLS_TEST_RESULT_SKIPPED )
                 {
                     mbedtls_fprintf( stdout, "----\n" );
                     total_skipped++;
@@ -767,14 +767,15 @@
                     total_errors++;
                     mbedtls_fprintf( stdout, "FAILED\n" );
                     mbedtls_fprintf( stdout, "  %s\n  at ",
-                                     test_info.test );
-                    if( test_info.step != (unsigned long)( -1 ) )
+                                     mbedtls_test_info.test );
+                    if( mbedtls_test_info.step != (unsigned long)( -1 ) )
                     {
                         mbedtls_fprintf( stdout, "step %lu, ",
-                                         test_info.step );
+                                         mbedtls_test_info.step );
                     }
                     mbedtls_fprintf( stdout, "line %d, %s",
-                                     test_info.line_no, test_info.filename );
+                                     mbedtls_test_info.line_no,
+                                     mbedtls_test_info.filename );
                 }
                 fflush( stdout );
             }
diff --git a/tests/suites/main_test.function b/tests/suites/main_test.function
index 98dab3e..57395ae 100644
--- a/tests/suites/main_test.function
+++ b/tests/suites/main_test.function
@@ -179,10 +179,9 @@
     {
         /* Unexpected parameter validation error */
         mbedtls_test_param_failed_get_location_record( &location_record );
-        test_fail( location_record.failure_condition,
-                   location_record.line,
-                   location_record.file );
-        test_info.result = TEST_RESULT_FAILED;
+        mbedtls_test_fail( location_record.failure_condition,
+                           location_record.line,
+                           location_record.file );
     }
 
     mbedtls_test_param_failed_reset_state( );
diff --git a/tests/suites/target_test.function b/tests/suites/target_test.function
index 8354b96..637a79d 100644
--- a/tests/suites/target_test.function
+++ b/tests/suites/target_test.function
@@ -384,8 +384,7 @@
     while ( 1 )
     {
         ret = 0;
-        test_info.result = TEST_RESULT_SUCCESS;
-        test_info.step = (unsigned long)( -1 );
+        mbedtls_test_info_reset( );
         data_len = 0;
 
         data = receive_data( &data_len );
@@ -443,7 +442,7 @@
         if ( ret )
             send_failure( ret );
         else
-            send_status( test_info.result );
+            send_status( mbedtls_test_info.result );
     }
     return( 0 );
 }
diff --git a/tests/suites/test_suite_asn1parse.function b/tests/suites/test_suite_asn1parse.function
index 990f343..47a4340 100644
--- a/tests/suites/test_suite_asn1parse.function
+++ b/tests/suites/test_suite_asn1parse.function
@@ -130,7 +130,7 @@
     size_t parsed_length;
     int ret;
 
-    test_set_step( buffer_size );
+    mbedtls_test_set_step( buffer_size );
     /* Allocate a new buffer of exactly the length to parse each time.
      * This gives memory sanitizers a chance to catch buffer overreads. */
     if( buffer_size == 0 )
@@ -198,7 +198,7 @@
 
     TEST_ASSERT( content > state->input_start );
     offset = content - state->input_start;
-    test_set_step( offset );
+    mbedtls_test_set_step( offset );
 
     if( *rest == 0 )
         return( RET_TRAVERSE_STOP );
@@ -252,7 +252,7 @@
      */
     for( buffer_size = 1; buffer_size <= input->len + 1; buffer_size++ )
     {
-        test_set_step( buffer_size );
+        mbedtls_test_set_step( buffer_size );
         /* Allocate a new buffer of exactly the length to parse each time.
          * This gives memory sanitizers a chance to catch buffer overreads. */
         ASSERT_ALLOC( buf, buffer_size );
@@ -594,6 +594,7 @@
     unsigned char *p = input->x;
     const char *rest = description;
     unsigned long n;
+    unsigned int step = 0;
 
     TEST_EQUAL( mbedtls_asn1_get_sequence_of( &p, input->x + input->len,
                                               &head, tag ),
@@ -614,7 +615,7 @@
             cur = &head;
             while( *rest )
             {
-                ++test_info.step;
+                mbedtls_test_set_step( step );
                 TEST_ASSERT( cur != NULL );
                 TEST_EQUAL( cur->buf.tag, tag );
                 n = strtoul( rest, (char **) &rest, 0 );
@@ -625,6 +626,7 @@
                 if( *rest )
                     ++rest;
                 cur = cur->next;
+                ++step;
             }
             TEST_ASSERT( cur == NULL );
         }
diff --git a/tests/suites/test_suite_asn1write.function b/tests/suites/test_suite_asn1write.function
index 21465c7..8824739 100644
--- a/tests/suites/test_suite_asn1write.function
+++ b/tests/suites/test_suite_asn1write.function
@@ -15,7 +15,7 @@
 
 int generic_write_start_step( generic_write_data_t *data )
 {
-    test_set_step( data->size );
+    mbedtls_test_set_step( data->size );
     ASSERT_ALLOC( data->output, data->size == 0 ? 1 : data->size );
     data->end = data->output + data->size;
     data->p = data->end;
diff --git a/tests/suites/test_suite_psa_crypto.function b/tests/suites/test_suite_psa_crypto.function
index 1051e0c..4cf53ca 100644
--- a/tests/suites/test_suite_psa_crypto.function
+++ b/tests/suites/test_suite_psa_crypto.function
@@ -532,7 +532,8 @@
         hash_alg = KNOWN_SUPPORTED_HASH_ALG;
         alg ^= PSA_ALG_ANY_HASH ^ hash_alg;
 #else
-        test_fail( "No hash algorithm for hash-and-sign testing", __LINE__, __FILE__ );
+        mbedtls_test_fail( "No hash algorithm for hash-and-sign testing",
+                            __LINE__, __FILE__ );
         return( 1 );
 #endif
     }
@@ -992,7 +993,7 @@
             mbedtls_snprintf( message, sizeof( message ),
                               "No sanity check for public key type=0x%08lx",
                               (unsigned long) type );
-            test_fail( message, __LINE__, __FILE__ );
+            mbedtls_test_fail( message, __LINE__, __FILE__ );
             (void) p;
             (void) end;
             return( 0 );
@@ -1115,8 +1116,8 @@
  * asymmetric, also check \p psa_export_public_key.
  *
  * If the key fails the tests, this function calls the test framework's
- * `test_fail` function and returns false. Otherwise this function returns
- * true. Therefore it should be used as follows:
+ * `mbedtls_test_fail` function and returns false. Otherwise this function
+ * returns true. Therefore it should be used as follows:
  * ```
  * if( ! exercise_key( ... ) ) goto exit;
  * ```
@@ -1162,7 +1163,7 @@
         mbedtls_snprintf( message, sizeof( message ),
                           "No code to exercise alg=0x%08lx",
                           (unsigned long) alg );
-        test_fail( message, __LINE__, __FILE__ );
+        mbedtls_test_fail( message, __LINE__, __FILE__ );
         ok = 0;
     }
 
@@ -2677,7 +2678,7 @@
     /* Compare with corrupted value */
     for( i = 0; i < output_length; i++ )
     {
-        test_set_step( i );
+        mbedtls_test_set_step( i );
         output[i] ^= 1;
         TEST_EQUAL( psa_hash_compare( alg, input->x, input->len,
                                       output, output_length ),
@@ -3152,7 +3153,7 @@
             ( output_size >= expected_mac->len ? PSA_SUCCESS :
               PSA_ERROR_BUFFER_TOO_SMALL );
 
-        test_set_step( output_size );
+        mbedtls_test_set_step( output_size );
         ASSERT_ALLOC( actual_mac, output_size );
 
         /* Calculate the MAC. */
@@ -3238,7 +3239,7 @@
     /* Test changing one byte. */
     for( size_t i = 0; i < expected_mac->len; i++ )
     {
-        test_set_step( i );
+        mbedtls_test_set_step( i );
         perturbed_mac[i] ^= 1;
         PSA_ASSERT( psa_mac_verify_setup( &operation, key, alg ) );
         PSA_ASSERT( psa_mac_update( &operation,
diff --git a/tests/suites/test_suite_psa_crypto_se_driver_hal.function b/tests/suites/test_suite_psa_crypto_se_driver_hal.function
index cf6ca5e..fa516c5 100644
--- a/tests/suites/test_suite_psa_crypto_se_driver_hal.function
+++ b/tests/suites/test_suite_psa_crypto_se_driver_hal.function
@@ -45,7 +45,7 @@
     do {                                                    \
        if( ! (TEST) )                                       \
        {                                                    \
-          test_fail( #TEST, __LINE__, __FILE__ );           \
+          mbedtls_test_fail( #TEST, __LINE__, __FILE__ );   \
           return( PSA_ERROR_DETECTED_BY_DRIVER );           \
        }                                                    \
     } while( 0 )
@@ -61,7 +61,7 @@
     do {                                                    \
        if( ! (TEST) )                                       \
        {                                                    \
-          test_fail( #TEST, __LINE__, __FILE__ );           \
+          mbedtls_test_fail( #TEST, __LINE__, __FILE__ );   \
           status = PSA_ERROR_DETECTED_BY_DRIVER;            \
           goto exit;                                        \
        }                                                    \
@@ -72,10 +72,10 @@
  * Run the code \p expr. If this returns \p expected_status,
  * do nothing. If this returns #PSA_ERROR_DETECTED_BY_DRIVER,
  * jump directly to the `exit` label. If this returns any other
- * status, call test_fail() then jump to `exit`.
+ * status, call mbedtls_test_fail() then jump to `exit`.
  *
  * The special case for #PSA_ERROR_DETECTED_BY_DRIVER is because in this
- * case, the test driver code is expected to have called test_fail()
+ * case, the test driver code is expected to have called mbedtls_test_fail()
  * already, so we make sure not to overwrite the failure information.
  */
 #define PSA_ASSERT_VIA_DRIVER( expr, expected_status )                  \
@@ -85,7 +85,7 @@
             goto exit;                                                  \
         if( PSA_ASSERT_VIA_DRIVER_status != ( expected_status ) )       \
         {                                                               \
-            test_fail( #expr, __LINE__, __FILE__ );                     \
+            mbedtls_test_fail( #expr, __LINE__, __FILE__ );                     \
             goto exit;                                                  \
         }                                                               \
     } while( 0 )
diff --git a/tests/suites/test_suite_ssl.function b/tests/suites/test_suite_ssl.function
index f377ffa..568e66b 100644
--- a/tests/suites/test_suite_ssl.function
+++ b/tests/suites/test_suite_ssl.function
@@ -3609,7 +3609,7 @@
      */
     for( i = block_size; i < buflen; i++ )
     {
-        test_set_step( i );
+        mbedtls_test_set_step( i );
 
         /* Restore correct pre-encryption record */
         rec = rec_save;
@@ -3646,7 +3646,7 @@
      */
     for( i = padlen; i <= pad_max_len; i++ )
     {
-        test_set_step( i );
+        mbedtls_test_set_step( i );
 
         /* Restore correct pre-encryption record */
         rec = rec_save;
@@ -4466,7 +4466,7 @@
      */
     for( max_in_len = 0; max_in_len <= 255 + block_size; max_in_len++ )
     {
-        test_set_step( max_in_len * 10000 );
+        mbedtls_test_set_step( max_in_len * 10000 );
 
         /* Use allocated in buffer to catch overreads */
         ASSERT_ALLOC( data, max_in_len );
@@ -4474,7 +4474,7 @@
         min_in_len = max_in_len > 255 ? max_in_len - 255 : 0;
         for( in_len = min_in_len; in_len <= max_in_len; in_len++ )
         {
-            test_set_step( max_in_len * 10000 + in_len );
+            mbedtls_test_set_step( max_in_len * 10000 + in_len );
 
             /* Set up dummy data and add_data */
             rec_num++;
@@ -4531,7 +4531,7 @@
 
     for( secret = offset_min; secret <= (size_t) offset_max; secret++ )
     {
-        test_set_step( (int) secret );
+        mbedtls_test_set_step( (int) secret );
 
         TEST_CF_SECRET( &secret, sizeof( secret ) );
         mbedtls_ssl_cf_memcpy_offset( dst, src, secret,