gfx/tests/TestColorNames.cpp

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  37
  38 #include "TestHarness.h"
  39
  40 #include <string.h>
  41 #include "nsColor.h"
  42 #include "nsColorNames.h"
  43 #include "prprf.h"
  44 #include "nsString.h"
  45
  46 // define an array of all color names
  47 #define GFX_COLOR(_name, _value) #_name,
  48 static const char* const kColorNames[] = {
  49 #include "nsColorNameList.h"
  50 };
  51 #undef GFX_COLOR
  52
  53 // define an array of all color name values
  54 #define GFX_COLOR(_name, _value) _value,
  55 static const nscolor kColors[] = {
  56 #include "nsColorNameList.h"
  57 };
  58 #undef GFX_COLOR
  59
  60 static const char* kJunkNames[] = {
  61   nsnull,
  62   "",
  63   "123",
  64   "backgroundz",
  65   "zzzzzz",
  66   "#@$&@#*@*$@$#"
  67 };
  68
  69 int main(int argc, char** argv)
  70 {
  71   ScopedXPCOM xpcom("TestColorNames");
  72   if (xpcom.failed())
  73     return 1;
  74
  75   nscolor rgb;
  76   int rv = 0;
  77
  78   // First make sure we can find all of the tags that are supposed to
  79   // be in the table. Futz with the case to make sure any case will
  80   // work
  81
  82   for (PRUint32 index = 0 ; index < NS_ARRAY_LENGTH(kColorNames); index++) {
  83     // Lookup color by name and make sure it has the right id
  84     nsCString tagName(kColorNames[index]);
  85
  86     // Check that color lookup by name gets the right rgb value
  87     if (!NS_ColorNameToRGB(NS_ConvertASCIItoUTF16(tagName), &rgb)) {
  88       fail("can't find '%s'", tagName.get());
  89       rv = 1;
  90     }
  91     if (rgb != kColors[index]) {
  92       fail("name='%s' ColorNameToRGB=%x kColors[%d]=%08x",
  93            tagName.get(), rgb, index, kColors[index]);
  94       rv = 1;
  95     }
  96
  97     // fiddle with the case to make sure we can still find it
  98     tagName.SetCharAt(tagName.CharAt(0) - 32, 0);
  99     if (!NS_ColorNameToRGB(NS_ConvertASCIItoUTF16(tagName), &rgb)) {
 100       fail("can't find '%s'", tagName.get());
 101       rv = 1;
 102     }
 103     if (rgb != kColors[index]) {
 104       fail("name='%s' ColorNameToRGB=%x kColors[%d]=%08x",
 105            tagName.get(), rgb, index, kColors[index]);
 106       rv = 1;
 107     }
 108
 109     // Check that parsing an RGB value in hex gets the right values
 110     PRUint8 r = NS_GET_R(rgb);
 111     PRUint8 g = NS_GET_G(rgb);
 112     PRUint8 b = NS_GET_B(rgb);
 113     PRUint8 a = NS_GET_A(rgb);
 114     if (a != PR_UINT8_MAX) {
 115       // NS_HexToRGB() can not handle a color with alpha channel
 116       rgb = NS_RGB(r, g, b);
 117     }
 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       fail("hex conversion to color of '%s'", cbuf);
 123       rv = 1;
 124     }
 125     if (hexrgb != rgb) {
 126       fail("rgb=%x hexrgb=%x", rgb, hexrgb);
 127       rv = 1;
 128     }
 129   }
 130
 131   // Now make sure we don't find some garbage
 132   for (PRUint32 i = 0; i < NS_ARRAY_LENGTH(kJunkNames); i++) {
 133     nsCString tag(kJunkNames[i]);
 134     if (NS_ColorNameToRGB(NS_ConvertASCIItoUTF16(tag), &rgb)) {
 135       fail("found '%s'", kJunkNames[i] ? kJunkNames[i] : "(null)");
 136       rv = 1;
 137     }
 138   }
 139
 140   if (rv == 0)
 141     passed("TestColorNames");
 142   return rv;
 143 }