gecko-dev/gfx/tests/TestColorNames.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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#include "TestHarness.h"
#include <string.h>
#include "nsColor.h"
#include "nsColorNames.h"
#include "prprf.h"
#include "nsString.h"
// define an array of all color names
#define GFX_COLOR(_name, _value) #_name,
static const char* const kColorNames[] = {
#include "nsColorNameList.h"
};
#undef GFX_COLOR
// define an array of all color name values
#define GFX_COLOR(_name, _value) _value,
static const nscolor kColors[] = {
#include "nsColorNameList.h"
};
#undef GFX_COLOR
static const char* kJunkNames[] = {
nsnull,
"",
"123",
"backgroundz",
"zzzzzz",
"#@$&@#*@*$@$#"
};
int main(int argc, char** argv)
{
ScopedXPCOM xpcom("TestColorNames");
if (xpcom.failed())
return 1;
nscolor rgb;
int rv = 0;
// First make sure we can find all of the tags that are supposed to
// be in the table. Futz with the case to make sure any case will
// work
for (PRUint32 index = 0 ; index < ArrayLength(kColorNames); index++) {
// Lookup color by name and make sure it has the right id
nsCString tagName(kColorNames[index]);
// Check that color lookup by name gets the right rgb value
if (!NS_ColorNameToRGB(NS_ConvertASCIItoUTF16(tagName), &rgb)) {
fail("can't find '%s'", tagName.get());
rv = 1;
}
if (rgb != kColors[index]) {
fail("name='%s' ColorNameToRGB=%x kColors[%d]=%08x",
tagName.get(), rgb, index, kColors[index]);
rv = 1;
}
// fiddle with the case to make sure we can still find it
tagName.SetCharAt(tagName.CharAt(0) - 32, 0);
if (!NS_ColorNameToRGB(NS_ConvertASCIItoUTF16(tagName), &rgb)) {
fail("can't find '%s'", tagName.get());
rv = 1;
}
if (rgb != kColors[index]) {
fail("name='%s' ColorNameToRGB=%x kColors[%d]=%08x",
tagName.get(), rgb, index, kColors[index]);
rv = 1;
}
// Check that parsing an RGB value in hex gets the right values
PRUint8 r = NS_GET_R(rgb);
PRUint8 g = NS_GET_G(rgb);
PRUint8 b = NS_GET_B(rgb);
PRUint8 a = NS_GET_A(rgb);
if (a != PR_UINT8_MAX) {
// NS_HexToRGB() can not handle a color with alpha channel
rgb = NS_RGB(r, g, b);
}
char cbuf[50];
PR_snprintf(cbuf, sizeof(cbuf), "%02x%02x%02x", r, g, b);
nscolor hexrgb;
if (!NS_HexToRGB(NS_ConvertASCIItoUTF16(cbuf), &hexrgb)) {
fail("hex conversion to color of '%s'", cbuf);
rv = 1;
}
if (hexrgb != rgb) {
fail("rgb=%x hexrgb=%x", rgb, hexrgb);
rv = 1;
}
}
// Now make sure we don't find some garbage
for (PRUint32 i = 0; i < ArrayLength(kJunkNames); i++) {
nsCString tag(kJunkNames[i]);
if (NS_ColorNameToRGB(NS_ConvertASCIItoUTF16(tag), &rgb)) {
fail("found '%s'", kJunkNames[i] ? kJunkNames[i] : "(null)");
rv = 1;
}
}
if (rv == 0)
passed("TestColorNames");
return rv;
}