kc3-lang/libxkbcommon/test/xvfb-wrapper.h

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• Hash : 0db1dc1c
  Author :
  Date : 2023-11-26T10:51:18
  

  fix error with "-Wl,--gc-sections"

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• test/xvfb-wrapper.h

• /* This is a wrapper around X11 tests to make it faster to use for the simple
   * type of test cases.
   *
   * Use with the X11_TEST macro like this:
   *
   * X11_TEST(some_test) {
   *  return 0;
   * }
   *
   * int main(void) {
   *  return x11_tests_run(void);
   * }
   *
   */
  
  #pragma once
  
  typedef int (* x11_test_func_t)(char* display);
  
  struct test_function {
      const char *name;     /* function name */
      const char *file;     /* file name */
      x11_test_func_t func; /* test function */
  } __attribute__((aligned(16)));
  
  /**
   * Defines a struct test_function in a custom ELF section that we can then
   * loop over in x11_tests_run() to extract the tests. This removes the
   * need of manually adding the tests to a suite or listing them somewhere.
   */
  #define X11_TEST(_func) \
  static int _func(char* display); \
  static const struct test_function _test_##_func \
  __attribute__((retain,used)) \
  __attribute__((section("test_functions_section"))) = { \
      .name = #_func, \
      .func = _func, \
      .file = __FILE__, \
  }; \
  static int _func(char* display)
  
  int xvfb_wrapper(int (*f)(char* display));
  
  int x11_tests_run(void);
  

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