test/sel.m

   1 // TEST_CONFIG
   2
   3 #include "test.h"
   4 #include <string.h>
   5 #include <objc/objc-runtime.h>
   6 #include <objc/objc-auto.h>
   7
   8 int main()
   9 {
  10     // Make sure @selector values are correctly fixed up
  11     testassert(@selector(foo) == sel_registerName("foo"));
  12
  13     // sel_getName recognizes the zero SEL
  14     testassert(0 == strcmp("<null selector>", sel_getName(0)));
  15
  16     // GC-ignored selectors.
  17 #if __has_feature(objc_arc)
  18
  19     // ARC dislikes `@selector(retain)`
  20
  21 #else
  22
  23 # if defined(__i386__)
  24     // sel_getName recognizes GC-ignored SELs
  25     if (objc_collectingEnabled()) {
  26         testassert(0 == strcmp("<ignored selector>",
  27                                sel_getName(@selector(retain))));
  28     } else {
  29         testassert(0 == strcmp("retain",
  30                                sel_getName(@selector(retain))));
  31     }
  32
  33     // _objc_search_builtins() shouldn't crash on GC-ignored SELs
  34     union {
  35         SEL sel;
  36         const char *ptr;
  37     } u;
  38     u.sel = @selector(retain);
  39     testassert(@selector(retain) == sel_registerName(u.ptr));
  40 # endif
  41
  42 #endif
  43
  44     succeed(__FILE__);
  45 }