add Readme

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "lib/Unity"]
+	path = lib/Unity
+	url = https://github.com/ThrowTheSwitch/Unity.git

README.md

@@ -0,0 +1,51 @@
+# KUnity
+
+KUnity configure the c unit test framework Unity (http://www.throwtheswitch.org/unity) so that it can use in kernel space. The test results will be "shown" by `printk`.
+
+## Add KUnity to a kernel module
+
+```Makefile
+
+# add KUnity and Unity source files
+module-objs += lib/KUnity/src/kunity.o
+module-objs += lib/KUnity/lib/Unity/src/unity.o
+
+# include KUnity and Unity header
+ccflags-y += -I<lib_path>/KUnity/src
+ccflags-y += -I<lib_path>/KUnity/lib/Unity/src
+
+# set the unity config by header file flag, which is provided by KUnity
+ccflags-y += -DUNITY_INCLUDE_CONFIG_H
+```
+
+##  Write and Running test cases
+
+Test can be written like Unity tests, but for the definition of the test function you have to use the  ```KUNITY_TEST``` makro.
+When a kunity test should run, its necessary to add the prefix  ```kunity_test_``` to the test function name.
+
+```c
+#include <kunity.h>
+// ... application includes
+KUNITY_TEST(first_simple_test)
+{
+    TEST_ASSERT_EQUAL(1, 0);
+}
+
+// add more tests
+
+// run tests
+int module_init(void) {
+    int result = 0;
+    UNITY_BEGIN();
+    RUN_TEST(kunity_test_first_simple_test);
+    // ... call the other tests
+    result = UNITY_END();
+    if ( < 1) {
+        // all tests was successful, startup module
+        // ...
+    }
+
+    return -result;
+}
+```
+For running tests it can also use the [KUnity-Test-Runner-Module](https://github.com/stubbfel/KUnity-Test-Runner-Module)

dev-utility/BuildKernelModule.cmake

@@ -1,75 +0,0 @@
-function(module_objects module_name input_files output_string)
-    foreach(module_file ${input_files})
-       string(REGEX MATCH "^.*[oc]$" match_file ${module_file})
-       if(NOT ${match_file})
-            file(RELATIVE_PATH rel_file "${PROJECT_SOURCE_DIR}" ${module_file} )
-            string(REPLACE ".c" ".o" module_object ${rel_file})
-            list(APPEND module_objects "${module_name}-objs += ${module_object}")
-       endif()
-    endforeach()
-    string(REPLACE ";" "\n" module_objects_string "${module_objects}")
-    set(${output_string} ${module_objects_string} PARENT_SCOPE)
-endfunction()
-
-function(module_include_directories input_dirs output_string)
-    foreach(include_dir ${input_dirs})
-        get_filename_component(abs_path ${include_dir} REALPATH)
-        list(APPEND module_includes "ccflags-y += -I${abs_path}")
-        include_directories(${abs_path})
-    endforeach()
-    string(REPLACE ";" "\n" module_includes_string "${module_includes}")
-    set(${output_string} ${module_includes_string} PARENT_SCOPE)
-endfunction()
-
-function(module_add_definitions input_definitions output_string)
-    foreach(input_definition ${input_definitions})
-        add_definitions(${input_definition})
-        list(APPEND module_definitions "ccflags-y += ${input_definition}")
-    endforeach()
-    string(REPLACE ";" "\n" module_definitions_string "${module_definitions}")
-    set(${output_string} ${module_definitions_string} PARENT_SCOPE)
-endfunction()
-
-function(module_kbuild module_name module_files module_include_dirs module_defs output_string)
-    module_objects("${module_name}" "${module_files}" kobjects_string)
-    module_include_directories("${module_include_dirs}" kincludes_string)
-    module_add_definitions("${module_defs}" kdefintions_string)
-    set(${output_string}
-"${module_name}-m += ${module_name}.o
-${kobjects_string}
-
-${kincludes_string}
-
-${kdefintions_string}" PARENT_SCOPE)
-endfunction()
-
-function(add_module module_name module_files module_include_dirs module_defs kernel_dir)
-    set(module_build_path  "${PROJECT_BINARY_DIR}/${module_name}")
-    module_kbuild("${module_name}" "${module_files}" "${module_include_dirs}" "${module_include_dirs}" Kbuild_string)
-    file(WRITE "${module_build_path}/Kbuild" ${Kbuild_string})
-
-    foreach(copy_file ${module_files})
-        file(RELATIVE_PATH rel_copy_file "${PROJECT_SOURCE_DIR}" ${copy_file} )
-        list(APPEND cmd_list "cp --parents ${copy_file} ${module_build_path}")
-    endforeach()
-    string(REPLACE ";" "\n" cmd_list_string "${cmd_list}")
-    file(WRITE "${module_build_path}/cp.sh" "#!/bin/bash\n${cmd_list_string}")
-    file(COPY "${module_build_path}/cp.sh"
-        DESTINATION "${module_build_path}/.tmp"
-        FILE_PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
-    file(REMOVE "${module_build_path}/cp.sh")
-
-    ADD_CUSTOM_COMMAND(
-    OUTPUT  ${module_name}.built
-    COMMAND "${module_build_path}/.tmp/cp.sh"
-    COMMAND ${CMAKE_MAKE_PROGRAM} -C ${kernel_dir} M=${module_build_path} modules KBUILD_EXTRA_SYMBOLS=${module_build_path}/Module.symvers
-    COMMAND cmake -E touch ${module_name}.built
-    COMMENT "Kernel make modules ${module_name}:\n${Kbuild_string}\n"
-    DEPENDS ${PROJECT_SOURCE_DIR}/CMakeLists.txt ${module_files} ${module_include_dirs}
-    VERBATIM)
-
-    ADD_CUSTOM_TARGET("${module_name}" ALL
-    DEPENDS ${PROJECT_BINARY_DIR}/${module_name}.built
-    SOURCES ${module_files}
-    COMMENT "Building Kernel Module ${module_name}")
-endfunction()

src/kunity.c

@@ -1,65 +1,130 @@
 #include "kunity.h"
 //{ global include region
 
+#include <linux/slab.h>
 #include <linux/string.h>
 
 //}
-//{ local include region
-
-//}
-
-
-//{ local define region
-
-//}
-
-
-//{ local enum region
-
-//}
-
-
-//{ local typedef region
-
-//}
-
 
 //{local struct region
 
-#pragma pack(push, 1)
-
-#pragma pack(pop)
+typedef struct string_builder_sTag {
+    size_t write_postion;
+    char buffer[KUNITY_LINE_SIZE];
+} string_builder_s, ptr_string_builder_s;
 
 //}
 
-
 //{ local function prototype region
 
+static void printk_put_char(char /* letter */);
+
+static result_code_e set_test_output(/*in */ const ptr_test_session_control_block_s output);
+
 //}
 
-//{ local global var region
-static string_builder_s sb;
-//}
+//{ local  var region
 
+static test_session_control_block_s prink_output = { printk_put_char, 0, 0 };
+
+static ptr_test_session_control_block_s kunity_output = &prink_output;
+
+static string_builder_s string_builder;
+
+static size_t sizeof_output = sizeof(test_session_control_block_s);
+
+//}
 
 //{ global function implements region
 
+void putchark(/* in */ char a)
+{
+    kunity_output->redirect_char(a);
+}
+
+result_code_e create_default_test_output(/* out*/ ptr_test_session_control_block_s* output_location)
+{
+    ptr_test_session_control_block_s tmp_output = NULL;
+    if (output_location == NULL) {
+        return ERROR_NULL_ARGUMENT;
+    }
+
+    if (*output_location != NULL) {
+        return ERROR_INVALID_ARGUMENT;
+    }
+
+    tmp_output = kmalloc(sizeof_output, GFP_KERNEL);
+    if (tmp_output == NULL) {
+        return ERROR_INVALID_OPERATION;
+    }
+
+    *output_location = tmp_output;
+    return OK;
+}
+
+result_code_e run_unity_test(/* in */ const unity_test_function_ptr test_function, /* in */ const char* file_name, /* in */ const char* test_name, /* in */ int line_number, /* in */ const ptr_test_session_control_block_s output)
+{
+    result_code_e result;
+    if (output == NULL) {
+        return ERROR_NULL_ARGUMENT;
+    }
+
+    result = set_test_output(output);
+    if (result != OK) {
+        return result;
+    }
+
+    if (output->_skip_start) {
+        Unity.TestFile = file_name;
+    } else {
+        UnityBegin(file_name);
+    }
+
+    UnityDefaultTestRun(test_function, test_name, line_number);
+    if (!output->_skip_end) {
+        UNITY_END();
+    }
+
+    return result;
+}
+
+result_code_e run_unity_printk_test(/* in */ const kunity_test_function_ptr test_function)
+{
+    if (test_function == NULL) {
+        return ERROR_NULL_ARGUMENT;
+    }
+    return test_function(&prink_output);
+}
+
 //}
 
-
 //{ local function implements region
-void putchark(char a)
+
+static void printk_put_char(char letter)
 {
-    if (a == '\n')
-    {
-        const char * c = (const char *)&sb.buffer[0];
+    if (letter == '\n') {
+        const char* c = (const char*)&string_builder.buffer[0];
         printk(c);
-        sb.write_postion = 0;
-        memset(sb.buffer, 0, 1024);
+        string_builder.write_postion = 0;
+        memset(string_builder.buffer, 0, KUNITY_LINE_SIZE);
         return;
     }
 
-    sb.buffer[sb.write_postion] = a;
-    sb.write_postion = (sb.write_postion + 1) % 1024;
+    string_builder.buffer[string_builder.write_postion] = letter;
+    string_builder.write_postion = (string_builder.write_postion + 1) % KUNITY_LINE_SIZE;
+}
+
+static result_code_e set_test_output(/* in */ const ptr_test_session_control_block_s output)
+{
+    if (output == NULL) {
+        return ERROR_NULL_ARGUMENT;
+    }
+
+    if (output->redirect_char == NULL) {
+        return ERROR_INVALID_ARGUMENT;
+    }
+
+    kunity_output = output;
+    return OK;
 }
 //}

src/kunity.h

@@ -2,29 +2,22 @@
 #define KUNITY_H
 #include "kunity_t.h"
 
-#ifndef TEST_MACRO
-
 //{ global include region
+
 #include <unity.h>
-//}
-//{ local include region
 
 //}
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
 //{ function region
 
-extern void putchark(char a);
+extern void putchark(/* in */ char a);
+
+extern result_code_e create_default_test_output(/* out*/ ptr_test_session_control_block_s* output_location);
+
+extern result_code_e run_unity_test(/* in */ const unity_test_function_ptr test_function, /* in */ const char* file_name, /* in */ const char* test_name, /* in */ int line_number, /* in */ const ptr_test_session_control_block_s output);
+
+extern result_code_e run_unity_printk_test(/* in */ const kunity_test_function_ptr test_function);
 
 //}
 
-#ifdef __cplusplus
-}
-#endif
-
-#endif // TEST_MACRO
-
 #endif // KUNITY_H

src/kunity_t.h

@@ -2,17 +2,11 @@
 #define KUNITY_T_H
 
 //{ global include region
+
+#include <linux/export.h>
 #include <linux/types.h>
 
-#ifndef KUNITY_TEST_RUNNER_APP
-#include <linux/export.h>
-#endif
-
 //}
-//{ local include region
-
-//}
-
 
 //{ define region
 
@@ -20,35 +14,72 @@
 #define KUNITY_LINE_SIZE 1024
 #endif
 
+#ifndef KUNITY_DEFAULT_TEST_NAME_PREFIX
+#define KUNITY_DEFAULT_TEST_NAME_PREFIX kunity_test_
+#endif
+
+#ifndef KUNITY_DEFAULT_TEST_NAME_PREFIX_STR
+#define STR(s) #s
+#define XSTR(s) STR(s)
+#define KUNITY_DEFAULT_TEST_NAME_PREFIX_STR XSTR(KUNITY_DEFAULT_TEST_NAME_PREFIX)
+#endif
+
+#ifndef KUNITY_CREATE_TEST_NAME
+#define JOIN(x, y) x##y
+#define CONCAT(x, y) JOIN(x, y)
+#define KUNITY_CREATE_TEST_NAME(function_name) CONCAT(KUNITY_DEFAULT_TEST_NAME_PREFIX, function_name)
+#endif
+
 #ifndef KUNITY_TEST
-#define KUNITY_TEST(function_name) \
-    extern void function_name (void); \
-    EXPORT_SYMBOL(function_name); \
-    void function_name()
+#define KUNITY_TEST(function_name)                                                                              \
+    extern result_code_e KUNITY_CREATE_TEST_NAME(function_name)(const ptr_test_session_control_block_s output); \
+    static void function_name(void);                                                                            \
+                                                                                                                \
+    result_code_e KUNITY_CREATE_TEST_NAME(function_name)(const ptr_test_session_control_block_s output)         \
+    {                                                                                                           \
+        return run_unity_test(function_name, __FILE__, #function_name, __LINE__, output);                       \
+    }                                                                                                           \
+    EXPORT_SYMBOL(KUNITY_CREATE_TEST_NAME(function_name));                                                      \
+                                                                                                                \
+    static void function_name()
 #endif
 
 //}
 
-
 //{ enum region
 
+typedef enum result_code_eTag {
+    OK,
+    ERROR_NULL_ARGUMENT,
+    ERROR_INVALID_ARGUMENT,
+    ERROR_INVALID_OPERATION
+} result_code_e,
+    *ptr_result_code_e;
+
 //}
 
-
 //{ typedef region
 
+typedef void (*redirect_char)(char a);
+
+typedef void (*unity_test_function_ptr)(void);
+
 //}
 
 //{ struct region
 
-#pragma pack(push, 1)
-typedef struct string_builder_sTag
-{
-    size_t write_postion;
-    char buffer[KUNITY_LINE_SIZE];
-} string_builder_s, ptr_string_builder_s;
-#pragma pack(pop)
+typedef struct test_session_control_block_sTag {
+    redirect_char redirect_char;
+    bool _skip_start;
+    bool _skip_end;
+} test_session_control_block_s, *ptr_test_session_control_block_s;
 
+typedef result_code_e (*kunity_test_function_ptr)(ptr_test_session_control_block_s);
+
+typedef struct test_sTag {
+    const char* name;
+    kunity_test_function_ptr test_function;
+} test_s, *ptr_test_s;
 
 //}
 

src/unity_config.h

@@ -1,8 +1,9 @@
 #ifndef UNITY_CONFIG_H
 #define UNITY_CONFIG_H
 
-
+#include "kunity_t.h"
 #include <linux/kernel.h>
+
 #ifndef UNITY_EXCLUDE_SETJMP_H
 #define UNITY_EXCLUDE_SETJMP_H
 #endif
@@ -35,4 +36,8 @@
 #define UNITY_INT_WIDTH (32)
 #endif
 
+#ifndef UNITY_OUTPUT_COLOR
+#define UNITY_OUTPUT_COLOR
+#endif
+
 #endif // UNITY_CONFIG_H