Gaurd test suite headers with suite dependency

Test suite header code was not gaurded with test suite dependency.
But some test suites have additional code in the headers section.
Variables in that section become unused if suite functions are
gaurded. Hence gaurded the headers section.
But this changed cuased missing types in get_expression() function
that was originally accessing types defined through suite headers.
Hence had to gaurd expressions code as well.
Gaurding expressions does not allow parsing the parameters when
some types or hash defs are gaurded. Hence added function
check_test() to check if test is allowed or not before parsing the
parameters.

tests/scripts/generate_code.py

@@ -328,8 +328,8 @@ def parse_functions(funcs_f):
             function_idx += 1
 
     ifdef, endif = gen_deps(suite_deps)
-    func_code = ifdef + suite_functions + endif
+    func_code = ifdef + suite_headers + suite_functions + endif
-    return dispatch_code, suite_headers, func_code, func_info
+    return suite_deps, dispatch_code, func_code, func_info
 
 
 def escaped_split(str, ch):
@@ -443,13 +443,14 @@ else
     return exp_code
 
 
-def gen_from_test_data(data_f, out_data_f, func_info):
+def gen_from_test_data(data_f, out_data_f, func_info, suite_deps):
     """
     Generates dependency checks, expression code and intermediate data file from test data file.
     
     :param data_f: 
     :param out_data_f:
     :param func_info: 
+    :param suite_deps:
     :return: 
     """
     unique_deps = []
@@ -500,7 +501,23 @@ def gen_from_test_data(data_f, out_data_f, func_info):
     if len(expression_code) == 0:
         expression_code = '(void) exp_id;\n'
         expression_code += '(void) out_value;\n'
-
+    ifdef = gen_deps_one_line(suite_deps)
+    if len(suite_deps):
+        dep_check_code = '''
+{ifdef}
+{code}
+#else
+(void) dep_id;
+#endif
+'''.format(ifdef=ifdef, code=dep_check_code)
+        expression_code = '''
+{ifdef}
+{code}
+#else
+(void) exp_id;
+(void) out_value;
+#endif
+'''.format(ifdef=ifdef, code=expression_code)
     return dep_check_code, expression_code
 
 
@@ -539,11 +556,10 @@ def generate_code(funcs_file, data_file, template_file, platform_file, help_file
 
     # Function code
     with open(funcs_file, 'r') as funcs_f, open(data_file, 'r') as data_f, open(out_data_file, 'w') as out_data_f:
-        dispatch_code, func_headers, func_code, func_info = parse_functions(funcs_f)
+        suite_deps, dispatch_code, func_code, func_info = parse_functions(funcs_f)
-        snippets['function_headers'] = func_headers
         snippets['functions_code'] = func_code
         snippets['dispatch_code'] = dispatch_code
-        dep_check_code, expression_code = gen_from_test_data(data_f, out_data_f, func_info)
+        dep_check_code, expression_code = gen_from_test_data(data_f, out_data_f, func_info, suite_deps)
         snippets['dep_check_code'] = dep_check_code
         snippets['expression_code'] = expression_code
 

tests/suites/desktop_test.function

@@ -389,6 +389,7 @@ int execute_tests( int argc , const char ** argv )
     const char **test_files = NULL;
     int testfile_count = 0;
     int option_verbose = 0;
+    int function_id = 0;
 
     /* Other Local variables */
     int arg_index = 1;
@@ -562,12 +563,15 @@ int execute_tests( int argc , const char ** argv )
                 }
 #endif /* __unix__ || __APPLE__ __MACH__ */
 
+                function_id = strtol( params[0], NULL, 10 );
+                if ( (ret = check_test( function_id )) == DISPATCH_TEST_SUCCESS )
+                {
                     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 ) )

tests/suites/embedded_test.function

@@ -371,6 +371,8 @@ int execute_tests( int args, const char ** argv )
             /* Read function id */
             function_id = *p;
             INCR_ASSERT( p, data, data_len, sizeof( uint8_t ) );
+            if ( ( ret = check_test( function_id ) ) != DISPATCH_TEST_SUCCESS )
+                break;
 
             /* Read number of parameters */
             count = *p;

tests/suites/main_test.function

@@ -40,8 +40,6 @@
 
 #define TEST_SUITE_ACTIVE
 
-{function_headers}
-
 {functions_code}
 
 #line {line_no} "suites/main_test.function"
@@ -151,6 +149,35 @@ int dispatch_test( int func_idx, void ** params )
 }}
 
 
+/**
+ * \brief       Checks if test function is supported
+ *
+ * \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 check_test( int func_idx )
+{{
+    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 == NULL )
+            ret = ( DISPATCH_UNSUPPORTED_SUITE );
+    }}
+    else
+    {{
+        ret = ( DISPATCH_TEST_FN_NOT_FOUND );
+    }}
+
+    return( ret );
+}}
+
+
 {platform_code}
 
 #line {line_no} "suites/main_test.function"