test/protocol_copyPropertyList.m

   1 // TEST_CFLAGS -framework Foundation
   2 // need Foundation to get NSObject compatibility additions for class Protocol
   3 // because ARC calls [protocol retain]
   4
   5 #include "test.h"
   6 #include <string.h>
   7 #include <malloc/malloc.h>
   8 #include <objc/runtime.h>
   9
  10 @protocol SuperProps
  11 @property int prop1;
  12 @property int prop2;
  13 @end
  14
  15 @protocol SubProps <SuperProps>
  16 @property int prop3;
  17 @property int prop4;
  18 @end
  19
  20
  21 @protocol FourProps
  22 @property int prop1;
  23 @property int prop2;
  24 @property int prop3;
  25 @property int prop4;
  26 @end
  27
  28 @protocol NoProps @end
  29
  30 static int isNamed(objc_property_t p, const char *name)
  31 {
  32     return (0 == strcmp(name, property_getName(p)));
  33 }
  34
  35 int main()
  36 {
  37     objc_property_t *props;
  38     unsigned int count;
  39     Protocol *proto;
  40
  41     proto = @protocol(SubProps);
  42     testassert(proto);
  43
  44     count = 100;
  45     props = protocol_copyPropertyList(proto, &count);
  46     testassert(props);
  47     testassert(count == 2);
  48     testassert((isNamed(props[0], "prop4") && isNamed(props[1], "prop3"))  ||
  49                (isNamed(props[0], "prop3") && isNamed(props[1], "prop4")));
  50     // props[] should be null-terminated
  51     testassert(props[2] == NULL);
  52     free(props);
  53
  54     proto = @protocol(SuperProps);
  55     testassert(proto);
  56
  57     count = 100;
  58     props = protocol_copyPropertyList(proto, &count);
  59     testassert(props);
  60     testassert(count == 2);
  61     testassert((isNamed(props[0], "prop1") && isNamed(props[1], "prop2"))  ||
  62                (isNamed(props[0], "prop2") && isNamed(props[1], "prop1")));
  63     // props[] should be null-terminated
  64     testassert(props[2] == NULL);
  65     free(props);
  66
  67     // Check null-termination - this property list block would be 16 bytes
  68     // if it weren't for the terminator
  69     proto = @protocol(FourProps);
  70     testassert(proto);
  71
  72     count = 100;
  73     props = protocol_copyPropertyList(proto, &count);
  74     testassert(props);
  75     testassert(count == 4);
  76     testassert(malloc_size(props) >= 5 * sizeof(objc_property_t));
  77     testassert(props[3] != NULL);
  78     testassert(props[4] == NULL);
  79     free(props);
  80
  81     // Check NULL count parameter
  82     props = protocol_copyPropertyList(proto, NULL);
  83     testassert(props);
  84     testassert(props[4] == NULL);
  85     testassert(props[3] != NULL);
  86     free(props);
  87
  88     // Check NULL protocol parameter
  89     count = 100;
  90     props = protocol_copyPropertyList(NULL, &count);
  91     testassert(!props);
  92     testassert(count == 0);
  93
  94     // Check NULL protocol and count
  95     props = protocol_copyPropertyList(NULL, NULL);
  96     testassert(!props);
  97
  98     // Check protocol with no properties
  99     proto = @protocol(NoProps);
 100     testassert(proto);
 101
 102     count = 100;
 103     props = protocol_copyPropertyList(proto, &count);
 104     testassert(!props);
 105     testassert(count == 0);
 106
 107     succeed(__FILE__);
 108     return 0;
 109 }