gfx/tests/TestColorNames.cpp

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  37
  38 // No output means test passed.
  39
  40 #include <stdio.h>
  41 #include <string.h>
  42 #include "nsColorNames.h"
  43 #include "prprf.h"
  44 #include "nsString.h"
  45
  46 static const char* kJunkNames[] = {
  47   nsnull,
  48   "",
  49   "123",
  50   "backgroundz",
  51   "zzzzzz",
  52   "#@$&@#*@*$@$#"
  53 };
  54
  55 int main(int argc, char** argv)
  56 {
  57   nsColorName id;
  58   nsColorName index;
  59   int rv = 0;
  60
  61   // Everything appears to assert if we don't do this first...
  62   nsColorNames::AddRefTable();
  63
  64   // First make sure we can find all of the tags that are supposed to
  65   // be in the table. Futz with the case to make sure any case will
  66   // work
  67
  68   index = eColorName_UNKNOWN;
  69   while (PRInt32(index) < (PRInt32 (eColorName_COUNT) - 1)) {
  70     // Lookup color by name and make sure it has the right id
  71     index = nsColorName(PRInt32(index) + 1);
  72     nsCString tagName(nsColorNames::GetStringValue(index));
  73     if (tagName.IsEmpty()) {
  74       printf("bug: tagName for nsColorNames::GetStringValue(%d) is ''\n", index);
  75       rv = -1;
  76       continue;
  77     }
  78
  79     id = nsColorNames::LookupName(NS_ConvertASCIItoUTF16(tagName));
  80     if (id == eColorName_UNKNOWN) {
  81       printf("bug: can't find '%s'\n", tagName.get());
  82       rv = -1;
  83     }
  84     if (id != index) {
  85       printf("bug: name='%s' id=%d index=%d\n", tagName.get(), id, index);
  86       rv = -1;
  87     }
  88
  89     // fiddle with the case to make sure we can still find it
  90     tagName.SetCharAt(tagName.CharAt(0) - 32, 0);
  91     id = nsColorNames::LookupName(NS_ConvertASCIItoUTF16(tagName));
  92     if (id == eColorName_UNKNOWN) {
  93       printf("bug: can't find '%s'\n", tagName.get());
  94       rv = -1;
  95     }
  96     if (id != index) {
  97       printf("bug: name='%s' id=%d index=%d\n", tagName.get(), id, index);
  98       rv = -1;
  99     }
 100
 101     // Check that color lookup by name gets the right rgb value
 102     nscolor rgb;
 103     if (!NS_ColorNameToRGB(NS_ConvertASCIItoUTF16(tagName), &rgb)) {
 104       printf("bug: name='%s' didn't NS_ColorNameToRGB\n", tagName.get());
 105       rv = -1;
 106     }
 107     if (nsColorNames::kColors[index] != rgb) {
 108       printf("bug: name='%s' ColorNameToRGB=%x kColors[%d]=%x\n",
 109              tagName.get(), rgb, nsColorNames::kColors[index],
 110              nsColorNames::kColors[index]);
 111       rv = -1;
 112     }
 113
 114     // Check that parsing an RGB value in hex gets the right values
 115     PRUint8 r = NS_GET_R(rgb);
 116     PRUint8 g = NS_GET_G(rgb);
 117     PRUint8 b = NS_GET_B(rgb);
 118     char cbuf[50];
 119     PR_snprintf(cbuf, sizeof(cbuf), "%02x%02x%02x", r, g, b);
 120     nscolor hexrgb;
 121     if (!NS_HexToRGB(NS_ConvertASCIItoUTF16(cbuf), &hexrgb)) {
 122       printf("bug: hex conversion to color of '%s' failed\n", cbuf);
 123       rv = -1;
 124     }
 125     if (hexrgb != rgb) {
 126       printf("bug: rgb=%x hexrgb=%x\n", rgb, hexrgb);
 127       rv = -1;
 128     }
 129   }
 130
 131   // Now make sure we don't find some garbage
 132   for (int i = 0; i < (int) (sizeof(kJunkNames) / sizeof(const char*)); i++) {
 133     const char* tag = kJunkNames[i];
 134     id = nsColorNames::LookupName(NS_ConvertASCIItoUTF16(tag));
 135     if (id > eColorName_UNKNOWN) {
 136       printf("bug: found '%s'\n", tag ? tag : "(null)");
 137       rv = -1;
 138     }
 139   }
 140
 141   return rv;
 142 }