test/protocol_copyPropertyList.m

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