diff --git a/tests/suites/desktop_test.function b/tests/suites/desktop_test.function
new file mode 100644
index 0000000..6e7fd07
--- /dev/null
+++ b/tests/suites/desktop_test.function
@@ -0,0 +1,644 @@
+#line 2 "suites/desktop_test.function"
+
+/**
+ * \brief       Varifies that string is in string parameter format i.e. "<str>"
+ *              It also strips enclosing '"' from the input string.
+ *
+ * \param str   String parameter.
+ *
+ * \return      0 if success else 1
+ */
+int verify_string( char **str )
+{
+    if( (*str)[0] != '"' ||
+        (*str)[strlen( *str ) - 1] != '"' )
+    {
+        mbedtls_fprintf( stderr,
+            "Expected string (with \"\") for parameter and got: %s\n", *str );
+        return( -1 );
+    }
+
+    (*str)++;
+    (*str)[strlen( *str ) - 1] = '\0';
+
+    return( 0 );
+}
+
+/**
+ * \brief       Varifies that string is an integer. Also gives the converted
+ *              integer value.
+ *
+ * \param str   Input string.
+ * \param value Pointer to int for output value.
+ *
+ * \return      0 if success else 1
+ */
+int verify_int( char *str, int *value )
+{
+    size_t i;
+    int minus = 0;
+    int digits = 1;
+    int hex = 0;
+
+    for( i = 0; i < strlen( str ); i++ )
+    {
+        if( i == 0 && str[i] == '-' )
+        {
+            minus = 1;
+            continue;
+        }
+
+        if( ( ( minus && i == 2 ) || ( !minus && i == 1 ) ) &&
+            str[i - 1] == '0' && str[i] == 'x' )
+        {
+            hex = 1;
+            continue;
+        }
+
+        if( ! ( ( str[i] >= '0' && str[i] <= '9' ) ||
+                ( hex && ( ( str[i] >= 'a' && str[i] <= 'f' ) ||
+                           ( str[i] >= 'A' && str[i] <= 'F' ) ) ) ) )
+        {
+            digits = 0;
+            break;
+        }
+    }
+
+    if( digits )
+    {
+        if( hex )
+            *value = strtol( str, NULL, 16 );
+        else
+            *value = strtol( str, NULL, 10 );
+
+        return( 0 );
+    }
+
+    mbedtls_fprintf( stderr,
+                    "Expected integer for parameter and got: %s\n", str );
+    return( KEY_VALUE_MAPPING_NOT_FOUND );
+}
+
+
+/**
+ * \brief       Usage string.
+ *
+ */
+#define USAGE \
+    "Usage: %s [OPTIONS] files...\n\n" \
+    "   Command line arguments:\n" \
+    "     files...          One or more test data file. If no file is specified\n" \
+    "                       the followimg default test case is used:\n" \
+    "                           %s\n\n" \
+    "   Options:\n" \
+    "     -v | --verbose    Display full information about each test\n" \
+    "     -h | --help       Display this information\n\n", \
+    argv[0], \
+    "TESTCASE_FILENAME"
+
+
+/**
+ * \brief       Read a line from the passed file pointer.
+ *
+ * \param f     FILE pointer
+ * \param buf   Pointer to memory to hold read line.
+ * \param len   Length of the buf.
+ *
+ * \return      0 if success else -1
+ */
+int get_line( FILE *f, char *buf, size_t len )
+{
+    char *ret;
+    int i = 0, str_len = 0, has_string = 0;
+
+    /* Read until we get a valid line */
+    do
+    {
+        ret = fgets( buf, len, f );
+        if( ret == NULL )
+            return( -1 );
+
+        str_len = strlen( buf );
+
+        /* Skip empty line and comment */
+        if ( str_len == 0 || buf[0] == '#' )
+            continue;
+        has_string = 0;
+        for ( i = 0; i < str_len; i++ )
+        {
+            char c = buf[i];
+            if ( c != ' ' && c != '\t' && c != '\n' &&
+                 c != '\v' && c != '\f' && c != '\r' )
+            {
+                has_string = 1;
+                break;
+            }
+        }
+    } while( !has_string );
+
+    /* Strip new line and carriage return */
+    ret = buf + strlen( buf );
+    if( ret-- > buf && *ret == '\n' )
+        *ret = '\0';
+    if( ret-- > buf && *ret == '\r' )
+        *ret = '\0';
+
+    return( 0 );
+}
+
+/**
+ * \brief       Splits string delimited by ':'. Ignores '\:'.
+ *
+ * \param buf           Input string
+ * \param len           Input string length
+ * \param params        Out params found
+ * \param params_len    Out params array len
+ *
+ * \return      Count of strings found.
+ */
+static int parse_arguments( char *buf, size_t len, char **params,
+                            size_t params_len )
+{
+    size_t cnt = 0, i;
+    char *cur = buf;
+    char *p = buf, *q;
+
+    params[cnt++] = cur;
+
+    while( *p != '\0' && p < buf + len )
+    {
+        if( *p == '\\' )
+        {
+            p++;
+            p++;
+            continue;
+        }
+        if( *p == ':' )
+        {
+            if( p + 1 < buf + len )
+            {
+                cur = p + 1;
+                assert( cnt < params_len );
+                params[cnt++] = cur;
+            }
+            *p = '\0';
+        }
+
+        p++;
+    }
+
+    /* Replace newlines, question marks and colons in strings */
+    for( i = 0; i < cnt; i++ )
+    {
+        p = params[i];
+        q = params[i];
+
+        while( *p != '\0' )
+        {
+            if( *p == '\\' && *(p + 1) == 'n' )
+            {
+                p += 2;
+                *(q++) = '\n';
+            }
+            else if( *p == '\\' && *(p + 1) == ':' )
+            {
+                p += 2;
+                *(q++) = ':';
+            }
+            else if( *p == '\\' && *(p + 1) == '?' )
+            {
+                p += 2;
+                *(q++) = '?';
+            }
+            else
+                *(q++) = *(p++);
+        }
+        *q = '\0';
+    }
+
+    return( cnt );
+}
+
+/**
+ * \brief       Converts parameters into test function consumable parameters.
+ *              Example: Input:  {"int", "0", "char*", "Hello",
+ *                                "hex", "abef", "exp", "1"}
+ *                      Output:  {
+ *                                0,                // Verified int
+ *                                "Hello",          // Verified string
+ *                                2, { 0xab, 0xef },// Converted len,hex pair
+ *                                9600              // Evaluated expression
+ *                               }
+ *
+ *
+ * \param cnt               Input string.
+ * \param params            Out array of found strings.
+ * \param int_params_store  Memory for storing processed integer parameters.
+ *
+ * \return      0 for success else 1
+ */
+static int convert_params( size_t cnt , char ** params , int * int_params_store )
+{
+    char ** cur = params;
+    char ** out = params;
+    int ret = ( DISPATCH_TEST_SUCCESS );
+
+    while ( cur - params < (int) cnt )
+    {
+        char * type = *cur++;
+        char * val = *cur++;
+
+        if ( strcmp( type, "char*" ) == 0 )
+        {
+            if ( verify_string( &val ) == 0 )
+            {
+              *out++ = val;
+            }
+            else
+            {
+                ret = ( DISPATCH_INVALID_TEST_DATA );
+                break;
+            }
+        }
+        else if ( strcmp( type, "int" ) == 0 )
+        {
+            if ( verify_int ( val, int_params_store ) == 0 )
+            {
+              *out++ = (char *) int_params_store++;
+            }
+            else
+            {
+                ret = ( DISPATCH_INVALID_TEST_DATA );
+                break;
+            }
+        }
+        else if ( strcmp( type, "hex" ) == 0 )
+        {
+            *int_params_store = unhexify( (unsigned char *) val, val );
+            *out++ = (char *)int_params_store++;
+            *out++ = val;
+        }
+        else if ( strcmp( type, "exp" ) == 0 )
+        {
+            int exp_id = strtol( val, NULL, 10 );
+            if ( get_expression ( exp_id, int_params_store ) == 0 )
+            {
+              *out++ = (char *)int_params_store++;
+            }
+            else
+            {
+              ret = ( DISPATCH_INVALID_TEST_DATA );
+              break;
+            }
+        }
+        else
+        {
+          ret = ( DISPATCH_INVALID_TEST_DATA );
+          break;
+        }
+    }
+    return( ret );
+}
+
+/**
+ * \brief       Tests snprintf implementation with test input.
+ *
+ * \param n         Buffer test length.
+ * \param ref_buf   Expected buffer.
+ * \param ref_ret   Expected snprintf return value.
+ *
+ * \return      0 for success else 1
+ */
+static int test_snprintf( size_t n, const char ref_buf[10], int ref_ret )
+{
+    int ret;
+    char buf[10] = "xxxxxxxxx";
+    const char ref[10] = "xxxxxxxxx";
+
+    ret = mbedtls_snprintf( buf, n, "%s", "123" );
+    if( ret < 0 || (size_t) ret >= n )
+        ret = -1;
+
+    if( strncmp( ref_buf, buf, sizeof( buf ) ) != 0 ||
+        ref_ret != ret ||
+        memcmp( buf + n, ref + n, sizeof( buf ) - n ) != 0 )
+    {
+        return( 1 );
+    }
+
+    return( 0 );
+}
+
+/**
+ * \brief       Tests snprintf implementation.
+ *
+ * \param none
+ *
+ * \return      0 for success else 1
+ */
+static int run_test_snprintf( void )
+{
+    return( test_snprintf( 0, "xxxxxxxxx",  -1 ) != 0 ||
+            test_snprintf( 1, "",           -1 ) != 0 ||
+            test_snprintf( 2, "1",          -1 ) != 0 ||
+            test_snprintf( 3, "12",         -1 ) != 0 ||
+            test_snprintf( 4, "123",         3 ) != 0 ||
+            test_snprintf( 5, "123",         3 ) != 0 );
+}
+
+
+/**
+ * \brief       Desktop implementation of execute_tests().
+ *              Parses command line and executes tests from
+ *              supplied or default data file.
+ *
+ * \param argc  Command line argument count.
+ * \param argv  Argument array.
+ *
+ * \return      Program exit status.
+ */
+int execute_tests( int argc , const char ** argv )
+{
+    /* Local Configurations and options */
+    const char *default_filename = "DATA_FILE";
+    const char *test_filename = NULL;
+    const char **test_files = NULL;
+    int testfile_count = 0;
+    int option_verbose = 0;
+
+    /* Other Local variables */
+    int arg_index = 1;
+    const char *next_arg;
+    int testfile_index, ret, i, cnt;
+    int total_errors = 0, total_tests = 0, total_skipped = 0;
+    FILE *file;
+    char buf[5000];
+    char *params[50];
+    int int_params[50]; // Store for proccessed integer params.
+    void *pointer;
+#if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
+    int stdout_fd = -1;
+#endif /* __unix__ || __APPLE__ __MACH__ */
+
+#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) && \
+    !defined(TEST_SUITE_MEMORY_BUFFER_ALLOC)
+    unsigned char alloc_buf[1000000];
+    mbedtls_memory_buffer_alloc_init( alloc_buf, sizeof( alloc_buf ) );
+#endif
+
+    /*
+     * The C standard doesn't guarantee that all-bits-0 is the representation
+     * of a NULL pointer. We do however use that in our code for initializing
+     * structures, which should work on every modern platform. Let's be sure.
+     */
+    memset( &pointer, 0, sizeof( void * ) );
+    if( pointer != NULL )
+    {
+        mbedtls_fprintf( stderr, "all-bits-zero is not a NULL pointer\n" );
+        return( 1 );
+    }
+
+    /*
+     * Make sure we have a snprintf that correctly zero-terminates
+     */
+    if( run_test_snprintf() != 0 )
+    {
+        mbedtls_fprintf( stderr, "the snprintf implementation is broken\n" );
+        return( 0 );
+    }
+
+    while( arg_index < argc )
+    {
+        next_arg = argv[ arg_index ];
+
+        if( strcmp(next_arg, "--verbose" ) == 0 ||
+                 strcmp(next_arg, "-v" ) == 0 )
+        {
+            option_verbose = 1;
+        }
+        else if( strcmp(next_arg, "--help" ) == 0 ||
+                 strcmp(next_arg, "-h" ) == 0 )
+        {
+            mbedtls_fprintf( stdout, USAGE );
+            mbedtls_exit( EXIT_SUCCESS );
+        }
+        else
+        {
+            /* Not an option, therefore treat all further arguments as the file
+             * list.
+             */
+            test_files = &argv[ arg_index ];
+            testfile_count = argc - arg_index;
+        }
+
+        arg_index++;
+    }
+
+    /* If no files were specified, assume a default */
+    if ( test_files == NULL || testfile_count == 0 )
+    {
+        test_files = &default_filename;
+        testfile_count = 1;
+    }
+
+    /* Initialize the struct that holds information about the last test */
+    memset( &test_info, 0, sizeof( test_info ) );
+
+    /* Now begin to execute the tests in the testfiles */
+    for ( testfile_index = 0;
+          testfile_index < testfile_count;
+          testfile_index++ )
+    {
+        int unmet_dep_count = 0;
+        char *unmet_dependencies[20];
+
+        test_filename = test_files[ testfile_index ];
+
+        file = fopen( test_filename, "r" );
+        if( file == NULL )
+        {
+            mbedtls_fprintf( stderr, "Failed to open test file: %s\n",
+                             test_filename );
+            return( 1 );
+        }
+
+        while( !feof( file ) )
+        {
+            if( unmet_dep_count > 0 )
+            {
+                mbedtls_fprintf( stderr,
+                    "FATAL: Dep count larger than zero at start of loop\n" );
+                mbedtls_exit( MBEDTLS_EXIT_FAILURE );
+            }
+            unmet_dep_count = 0;
+
+            if( ( ret = get_line( file, buf, sizeof(buf) ) ) != 0 )
+                break;
+            mbedtls_fprintf( stdout, "%s%.66s", test_info.failed ? "\n" : "", buf );
+            mbedtls_fprintf( stdout, " " );
+            for( i = strlen( buf ) + 1; i < 67; i++ )
+                mbedtls_fprintf( stdout, "." );
+            mbedtls_fprintf( stdout, " " );
+            fflush( stdout );
+
+            total_tests++;
+
+            if( ( ret = get_line( file, buf, sizeof( buf ) ) ) != 0 )
+                break;
+            cnt = parse_arguments( buf, strlen( buf ), params,
+                                   sizeof( params ) / sizeof( params[0] ) );
+
+            if( strcmp( params[0], "depends_on" ) == 0 )
+            {
+                for( i = 1; i < cnt; i++ )
+                {
+                    int dep_id = strtol( params[i], NULL, 10 );
+                    if( dep_check( dep_id ) != DEPENDENCY_SUPPORTED )
+                    {
+                        if( 0 == option_verbose )
+                        {
+                            /* Only one count is needed if not verbose */
+                            unmet_dep_count++;
+                            break;
+                        }
+
+                        unmet_dependencies[ unmet_dep_count ] = strdup( params[i] );
+                        if(  unmet_dependencies[ unmet_dep_count ] == NULL )
+                        {
+                            mbedtls_fprintf( stderr, "FATAL: Out of memory\n" );
+                            mbedtls_exit( MBEDTLS_EXIT_FAILURE );
+                        }
+                        unmet_dep_count++;
+                    }
+                }
+
+                if( ( ret = get_line( file, buf, sizeof( buf ) ) ) != 0 )
+                    break;
+                cnt = parse_arguments( buf, strlen( buf ), params,
+                                       sizeof( params ) / sizeof( params[0] ) );
+            }
+
+            // If there are no unmet dependencies execute the test
+            if( unmet_dep_count == 0 )
+            {
+                test_info.failed = 0;
+
+#if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
+                /* Suppress all output from the library unless we're verbose
+                 * mode
+                 */
+                if( !option_verbose )
+                {
+                    stdout_fd = redirect_output( &stdout, "/dev/null" );
+                    if( stdout_fd == -1 )
+                    {
+                        /* Redirection has failed with no stdout so exit */
+                        exit( 1 );
+                    }
+                }
+#endif /* __unix__ || __APPLE__ __MACH__ */
+
+                ret = convert_params( cnt - 1, params + 1, int_params );
+                if ( DISPATCH_TEST_SUCCESS == ret )
+                {
+                    int function_id = strtol( params[0], NULL, 10 );
+                    ret = dispatch_test( function_id, (void **)( params + 1 ) );
+                }
+
+#if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
+                if( !option_verbose && restore_output( &stdout, stdout_fd ) )
+                {
+                        /* Redirection has failed with no stdout so exit */
+                        exit( 1 );
+                }
+#endif /* __unix__ || __APPLE__ __MACH__ */
+
+            }
+
+            if( unmet_dep_count > 0 || ret == DISPATCH_UNSUPPORTED_SUITE )
+            {
+                total_skipped++;
+                mbedtls_fprintf( stdout, "----" );
+
+                if( 1 == option_verbose && ret == DISPATCH_UNSUPPORTED_SUITE )
+                {
+                    mbedtls_fprintf( stdout, "\n   Test Suite not enabled" );
+                }
+
+                if( 1 == option_verbose && unmet_dep_count > 0 )
+                {
+                    mbedtls_fprintf( stdout, "\n   Unmet dependencies: " );
+                    for( i = 0; i < unmet_dep_count; i++ )
+                    {
+                        mbedtls_fprintf( stdout, "%s  ",
+                                        unmet_dependencies[i] );
+                        free( unmet_dependencies[i] );
+                    }
+                }
+                mbedtls_fprintf( stdout, "\n" );
+                fflush( stdout );
+
+                unmet_dep_count = 0;
+            }
+            else if( ret == DISPATCH_TEST_SUCCESS )
+            {
+                if( test_info.failed == 0 )
+                {
+                    mbedtls_fprintf( stdout, "PASS\n" );
+                }
+                else
+                {
+                    total_errors++;
+                    mbedtls_fprintf( stdout, "FAILED\n" );
+                    mbedtls_fprintf( stdout, "  %s\n  at line %d, %s\n",
+                                     test_info.test, test_info.line_no,
+                                     test_info.filename );
+                }
+                fflush( stdout );
+            }
+            else if( ret == DISPATCH_INVALID_TEST_DATA )
+            {
+                mbedtls_fprintf( stderr, "FAILED: FATAL PARSE ERROR\n" );
+                fclose( file );
+                mbedtls_exit( 2 );
+            }
+            else if( ret == DISPATCH_TEST_FN_NOT_FOUND )
+            {
+                mbedtls_fprintf( stderr, "FAILED: FATAL TEST FUNCTION NOT FUND\n" );
+                fclose( file );
+                mbedtls_exit( 2 );
+            }
+            else
+                total_errors++;
+        }
+        fclose( file );
+
+        /* In case we encounter early end of file */
+        for( i = 0; i < unmet_dep_count; i++ )
+            free( unmet_dependencies[i] );
+    }
+
+    mbedtls_fprintf( stdout, "\n----------------------------------------------------------------------------\n\n");
+    if( total_errors == 0 )
+        mbedtls_fprintf( stdout, "PASSED" );
+    else
+        mbedtls_fprintf( stdout, "FAILED" );
+
+    mbedtls_fprintf( stdout, " (%d / %d tests (%d skipped))\n",
+             total_tests - total_errors, total_tests, total_skipped );
+
+#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) && \
+    !defined(TEST_SUITE_MEMORY_BUFFER_ALLOC)
+#if defined(MBEDTLS_MEMORY_DEBUG)
+    mbedtls_memory_buffer_alloc_status();
+#endif
+    mbedtls_memory_buffer_alloc_free();
+#endif
+
+#if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
+    if( stdout_fd != -1 )
+        close_output( stdout );
+#endif /* __unix__ || __APPLE__ __MACH__ */
+
+    return( total_errors != 0 );
+}
diff --git a/tests/suites/embedded_test.function b/tests/suites/embedded_test.function
new file mode 100644
index 0000000..21a5cab
--- /dev/null
+++ b/tests/suites/embedded_test.function
@@ -0,0 +1,364 @@
+#line 2 "embedded_test.function"
+
+#include "greentea-client/test_env_c.h"
+
+/**
+ * \brief       Increments pointer and asserts that it does not overflow.
+ *
+ * \param p     Pointer to byte array
+ * \param start Pointer to start of byte array
+ * \param len   Length of byte array
+ * \param step  Increment size
+ *
+ */
+#define INCR_ASSERT(p, start, len, step) do                     \
+{                                                               \
+    assert( p >= start );                                       \
+    assert( sizeof( *p ) == sizeof( *start ) );                 \
+    /* <= is checked to support use inside a loop where         \
+       pointer is incremented after reading data.       */      \
+    assert( (uint32_t)( (p - start) + step ) <= len );          \
+    p += step;                                                  \
+}                                                               \
+while( 0 )
+
+
+/**
+ * \brief       4 byte align unsigned char pointer
+ *
+ * \param p     Pointer to byte array
+ * \param start Pointer to start of byte array
+ * \param len   Length of byte array
+ *
+ */
+#define ALIGN_32BIT(p, start, len) do           \
+{                                               \
+    uint32_t align = ( - (uintptr_t)p ) % 4;    \
+    INCR_ASSERT(p, start, len, align);          \
+}                                               \
+while( 0 )
+
+
+/**
+ * \brief       Verify dependencies. Dependency identifiers are
+ *              encoded in the buffer as 8 bit unsigned integers.
+ *
+ * \param count     Number of dependencies.
+ * \param dep_p     Pointer to buffer.
+ *
+ * \return          DEPENDENCY_SUPPORTED if success else DEPENDENCY_NOT_SUPPORTED.
+ */
+int verify_dependencies( uint8_t count, uint8_t * dep_p )
+{
+    uint8_t i;
+    for ( i = 0; i < count; i++ )
+    {
+        if ( dep_check( (int)(dep_p[i]) ) != DEPENDENCY_SUPPORTED )
+            return( DEPENDENCY_NOT_SUPPORTED );
+    }
+    return( DEPENDENCY_SUPPORTED );
+}
+
+
+/**
+ * \brief       Receives unsigned integer on serial interface.
+ *              Integers are encoded in network order.
+ *
+ * \param none
+ *
+ * \return      unsigned int
+ */
+uint32_t receive_uint32()
+{
+    uint32_t value;
+    value =  (uint8_t)greentea_getc() << 24;
+    value |= (uint8_t)greentea_getc() << 16;
+    value |= (uint8_t)greentea_getc() << 8;
+    value |= (uint8_t)greentea_getc();
+    return( (uint32_t)value );
+}
+
+/**
+ * \brief       Parses out an unsigned 32 int value from the byte array.
+ *              Integers are encoded in network order.
+ *
+ * \param p     Pointer to byte array
+ *
+ * \return      unsigned int
+ */
+uint32_t parse_uint32( uint8_t * p )
+{
+    uint32_t value;
+    value =  *p++ << 24;
+    value |= *p++ << 16;
+    value |= *p++ << 8;
+    value |= *p;
+    return( value );
+}
+
+
+/**
+ * \brief       Receives test data on serial as greentea key,value pair:
+ *              {{<length>;<byte array>}}
+ *
+ * \param data_len  Out pointer to hold received data length.
+ *
+ * \return      Byte array.
+ */
+uint8_t * receive_data( uint32_t * data_len )
+{
+    uint32_t i = 0, errors = 0;
+    char c;
+    uint8_t * data = NULL;
+
+    /* Read opening braces */
+    i = 0;
+    while ( i < 2 )
+    {
+        c = greentea_getc();
+        /* Ignore any prevous CR LF characters */
+        if ( c == '\n' || c == '\r' )
+            continue;
+        i++;
+        if ( c != '{' )
+            return( NULL );
+    }
+
+    /* Read data length */
+    *data_len = receive_uint32();
+    data = (uint8_t *)malloc( *data_len );
+    assert( data != NULL );
+
+    greentea_getc(); // read ';' received after key i.e. *data_len
+
+    for( i = 0; i < *data_len; i++ )
+        data[i] = greentea_getc();
+
+    /* Read closing braces */
+    for( i = 0; i < 2; i++ )
+    {
+        c = greentea_getc();
+        if ( c != '}' )
+        {
+            errors++;
+            break;
+        }
+    }
+
+    if ( errors )
+    {
+        free( data );
+        data = NULL;
+        *data_len = 0;
+    }
+
+    return( data );
+}
+
+/**
+ * \brief       Parses received byte array for test parameters.
+ *
+ * \param count     Parameter count
+ * \param data      Received Byte array
+ * \param data_len  Byte array length
+ * \param error     Parsing error out variable.
+ *
+ * \return      Array of parsed parameters allocated on heap.
+ *              Note: Caller has the responsibility to delete
+ *                    the memory after use.
+ */
+void ** parse_parameters( uint8_t count, uint8_t * data, uint32_t data_len,
+                            int * error )
+{
+    uint32_t i = 0;
+    char c;
+    void ** params = NULL;
+    void ** cur = NULL;
+    uint8_t * p = NULL;
+
+    params = (void **)malloc( sizeof( void *) * ( count + 1 ) );
+    assert( params != NULL );
+    params[count] = NULL;
+    cur = params;
+
+    p = data;
+
+    /* Parameters */
+    for( i = 0; i < count; i++ )
+    {
+        c = (char)*p;
+        INCR_ASSERT( p, data, data_len, 1 );
+
+        /* Align p to 4 bytes for int, expression, string len or hex length */
+        ALIGN_32BIT( p, data, data_len );
+
+        /* Network to host conversion */
+        *( (int32_t *)p ) = (int32_t)parse_uint32( p );
+
+        switch( c )
+        {
+            case 'E':
+                {
+                    if ( get_expression( *( (int32_t *)p ), (int32_t *)p ) )
+                    {
+                        *error = KEY_VALUE_MAPPING_NOT_FOUND;
+                        goto exit;
+                    }
+                } /* Intentional fall through */
+            case 'I':
+                {
+                    *cur++ = (void *)p;
+                    INCR_ASSERT( p, data, data_len, sizeof( int32_t ) );
+                }
+                break;
+            case 'H':
+                {
+                    *cur++ = (void *)p;
+                } /* Intentional fall through */
+            case 'S':
+                {
+                    uint32_t sz = *( (int32_t *)p );
+                    INCR_ASSERT( p, data, data_len, sizeof( int32_t ) );
+                    *cur++ = (void *)p;
+                    INCR_ASSERT( p, data, data_len, sz );
+                }
+                break;
+            default:
+                    {
+                        *error = DISPATCH_INVALID_TEST_DATA;
+                        goto exit;
+                    }
+                break;
+        }
+    }
+
+exit:
+    if ( *error )
+    {
+        free( params );
+        params = NULL;
+    }
+
+    return( params );
+}
+
+/**
+ * \brief       Sends greentea key and int value pair to host.
+ *
+ * \param key   key string
+ * \param value integer value
+ *
+ * \return      void
+ */
+void send_key_integer( char * key, int value )
+{
+    char str[50];
+    snprintf( str, sizeof( str ), "%d", value );
+    greentea_send_kv_c( key, str );
+}
+
+/**
+ * \brief       Sends test setup failure to the host.
+ *
+ * \param failure   Test set failure
+ *
+ * \return      void
+ */
+void send_failure( int failure )
+{
+    send_key_integer( "F", failure );
+}
+
+/**
+ * \brief       Sends test status to the host.
+ *
+ * \param status    Test status (PASS=0/FAIL=!0)
+ *
+ * \return      void
+ */
+void send_status( int status )
+{
+    send_key_integer( "R", status );
+}
+
+
+/**
+ * \brief       Embedded implementation of execute_tests().
+ *              Ignores command line and received test data
+ *              on serial.
+ *
+ * \param argc  not used
+ * \param argv  not used
+ *
+ * \return      Program exit status.
+ */
+int execute_tests( int args, const char ** argv )
+{
+    int ret = 0;
+    uint32_t data_len = 0;
+    uint8_t count = 0, function_id;
+    void ** params = NULL;
+    uint8_t * data = NULL, * p = NULL;
+
+    GREENTEA_SETUP_C( 180, "mbedtls_test" );
+    greentea_send_kv_c( "GO", " " );
+
+    while ( 1 )
+    {
+        ret = 0;
+        test_info.failed = 0;
+        data_len = 0;
+
+        data = receive_data( &data_len );
+        if ( data == NULL )
+            continue;
+        p = data;
+
+        do
+        {
+            /* Read dependency count */
+            count = *p;
+            assert( count < data_len );
+            INCR_ASSERT( p, data, data_len, sizeof( uint8_t ) );
+            ret = verify_dependencies( count, p );
+            if ( ret != DEPENDENCY_SUPPORTED )
+                break;
+
+            INCR_ASSERT( p, data, data_len, count );
+
+            /* Read function id */
+            function_id = *p;
+            INCR_ASSERT( p, data, data_len, sizeof( uint8_t ) );
+
+            /* Read number of parameters */
+            count = *p;
+            INCR_ASSERT( p, data, data_len, sizeof( uint8_t ) );
+
+            params = parse_parameters( count, p, data_len - (p - data), &ret );
+            if ( ret )
+                break;
+
+            ret = dispatch_test( function_id, params );
+        }
+        while ( 0 );
+
+        if ( data )
+        {
+            free(data);
+            data = NULL;
+        }
+
+        if ( params )
+        {
+            free( params );
+            params = NULL;
+        }
+
+        if ( ret )
+            send_failure( ret );
+        else
+            send_status( test_info.failed );
+    }
+    return( 0 );
+}
+
diff --git a/tests/suites/mbed_test.function b/tests/suites/mbed_test.function
new file mode 100644
index 0000000..e09ed70
--- /dev/null
+++ b/tests/suites/mbed_test.function
@@ -0,0 +1,173 @@
+#line 2 "suites/mbed_test.function"
+/*
+ * *** THIS FILE HAS BEEN MACHINE GENERATED ***
+ *
+ * This file has been machine generated using the script:
+ * {generator_script}
+ *
+ * Test file      : {test_file}
+ *
+ * The following files were used to create this file.
+ *
+ *      Main code file      : {test_main_file}
+ *      Platform code file  : {test_platform_file}
+ *      Helper file         : {test_common_helper_file}
+ *      Test suite file     : {test_case_file}
+ *      Test suite data     : {test_case_data_file}
+ *
+ *
+ *  This file is part of mbed TLS (https://tls.mbed.org)
+ */
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+#include <mbedtls/config.h>
+#else
+#include MBEDTLS_CONFIG_FILE
+#endif
+
+
+/*----------------------------------------------------------------------------*/
+/* Common helper code */
+
+{test_common_helpers}
+
+#line {line_no} "suites/mbed_test.function"
+
+
+/*----------------------------------------------------------------------------*/
+/* Test Suite Code */
+
+
+#define TEST_SUITE_ACTIVE
+
+{function_headers}
+
+{functions_code}
+
+#line {line_no} "suites/mbed_test.function"
+
+
+/*----------------------------------------------------------------------------*/
+/* Test dispatch code */
+
+
+/**
+ * \brief       Evaluates an expression/macro into its literal integer value.
+ *              For optimizing space for embedded targets each expression/macro
+ *              is identified by a unique identifier instead of string literals.
+ *              Identifiers and evaluation code is generated by script:
+ *              {generator_script}
+ *
+ * \param exp_id    Expression identifier.
+ * \param out_value Pointer to int to hold the integer.
+ *
+ * \return       0 if exp_id is found. 1 otherwise.
+ */
+int get_expression( int32_t exp_id, int32_t * out_value )
+{{
+{expression_code}
+#line {line_no} "suites/mbed_test.function"
+    {{
+        return( KEY_VALUE_MAPPING_NOT_FOUND );
+    }}
+    return( KEY_VALUE_MAPPING_FOUND );
+}}
+
+
+/**
+ * \brief       Checks if the dependency i.e. the compile flag is set.
+ *              For optimizing space for embedded targets each dependency
+ *              is identified by a unique identifier instead of string literals.
+ *              Identifiers and check code is generated by script:
+ *              {generator_script}
+ *
+ * \param exp_id    Dependency identifier.
+ *
+ * \return       DEPENDENCY_SUPPORTED if set else DEPENDENCY_NOT_SUPPORTED
+ */
+int dep_check( int dep_id )
+{{
+{dep_check_code}
+#line {line_no} "suites/mbed_test.function"
+    {{
+         return( DEPENDENCY_NOT_SUPPORTED );
+    }}
+}}
+
+
+/**
+ * \brief       Function pointer type for test function wrappers.
+ *
+ *
+ * \param void **   Pointer to void pointers. Represents an array of test
+ *                  function parameters.
+ *
+ * \return       void
+ */
+typedef void (*TestWrapper_t)( void ** );
+
+
+/**
+ * \brief       Table of test function wrappers. Used by dispatch_test().
+ *              This table is populated by script:
+ *              {generator_script}
+ *
+ */
+TestWrapper_t test_funcs[] =
+{{
+{dispatch_code} 
+#line {line_no} "suites/mbed_test.function"
+}};
+
+
+/**
+ * \brief       Dispatches test functions based on function index.
+ *
+ * \param exp_id    Test function index.
+ *
+ * \return       DISPATCH_TEST_SUCCESS if found
+ *               DISPATCH_TEST_FN_NOT_FOUND if not found
+ *               DISPATCH_UNSUPPORTED_SUITE if not compile time enabled.
+ */
+int dispatch_test( int func_idx, void ** params )
+{{
+    int ret = DISPATCH_TEST_SUCCESS;
+    TestWrapper_t fp = NULL;
+
+    if ( func_idx < (int)( sizeof(test_funcs)/sizeof( TestWrapper_t ) ) )
+    {{
+        fp = test_funcs[func_idx];
+        if ( fp )
+            fp( params );
+        else
+            ret = ( DISPATCH_UNSUPPORTED_SUITE );
+    }} else
+    {{
+        ret = ( DISPATCH_TEST_FN_NOT_FOUND );
+    }}
+
+    return( ret );
+}}
+
+
+{platform_code}
+
+#line {line_no} "suites/mbed_test.function"
+
+/*----------------------------------------------------------------------------*/
+/* Main Test code */
+
+
+/**
+ * \brief       Program main. Invokes platform specific execute_tests().
+ *
+ * \param argc      Command line arguments count.
+ * \param argv      Array of command line arguments.
+ *
+ * \return       Exit code.
+ */
+int main( int argc, const char *argv[] )
+{{
+    return execute_tests( argc, argv );
+}}
+
diff --git a/tests/suites/test_suite_cipher.chachapoly.data b/tests/suites/test_suite_cipher.chachapoly.data
index 1760dc0..ed2455f 100644
--- a/tests/suites/test_suite_cipher.chachapoly.data
+++ b/tests/suites/test_suite_cipher.chachapoly.data
@@ -1,5 +1,5 @@
 Decrypt empty buffer
-depends_on:MBEDTLS_CHACHAPOLY_C:
+depends_on:MBEDTLS_CHACHAPOLY_C
 dec_empty_buf:
 
 ChaCha20+Poly1305 Encrypt and decrypt 0 bytes