gfx/tests/gtest/TestColorNames.cpp

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/tests/gtest/TestColorNames.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,99 @@
     1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +#include "gtest/gtest.h"
    1.10 +
    1.11 +#include <string.h>
    1.12 +#include "nsColor.h"
    1.13 +#include "nsColorNames.h"
    1.14 +#include "prprf.h"
    1.15 +#include "nsString.h"
    1.16 +#include "mozilla/ArrayUtils.h"
    1.17 +
    1.18 +// define an array of all color names
    1.19 +#define GFX_COLOR(_name, _value) #_name,
    1.20 +static const char* const kColorNames[] = {
    1.21 +#include "nsColorNameList.h"
    1.22 +};
    1.23 +#undef GFX_COLOR
    1.24 +
    1.25 +// define an array of all color name values
    1.26 +#define GFX_COLOR(_name, _value) _value,
    1.27 +static const nscolor kColors[] = {
    1.28 +#include "nsColorNameList.h"
    1.29 +};
    1.30 +#undef GFX_COLOR
    1.31 +
    1.32 +using namespace mozilla;
    1.33 +
    1.34 +static const char* kJunkNames[] = {
    1.35 +  nullptr,
    1.36 +  "",
    1.37 +  "123",
    1.38 +  "backgroundz",
    1.39 +  "zzzzzz",
    1.40 +  "#@$&@#*@*$@$#"
    1.41 +};
    1.42 +
    1.43 +static
    1.44 +void RunColorTests() {
    1.45 +  nscolor rgb;
    1.46 +  // First make sure we can find all of the tags that are supposed to
    1.47 +  // be in the table. Futz with the case to make sure any case will
    1.48 +  // work
    1.49 +
    1.50 +  for (uint32_t index = 0 ; index < ArrayLength(kColorNames); index++) {
    1.51 +    // Lookup color by name and make sure it has the right id
    1.52 +    nsCString tagName(kColorNames[index]);
    1.53 +
    1.54 +    // Check that color lookup by name gets the right rgb value
    1.55 +    ASSERT_TRUE(NS_ColorNameToRGB(NS_ConvertASCIItoUTF16(tagName), &rgb)) <<
    1.56 +      "can't find '" << tagName.get() << "'";
    1.57 +    ASSERT_TRUE((rgb == kColors[index])) <<
    1.58 +      "failed at index " << index << " out of " << ArrayLength(kColorNames);
    1.59 +
    1.60 +    // fiddle with the case to make sure we can still find it
    1.61 +    tagName.SetCharAt(tagName.CharAt(0) - 32, 0);
    1.62 +    ASSERT_TRUE(NS_ColorNameToRGB(NS_ConvertASCIItoUTF16(tagName), &rgb)) <<
    1.63 +      "can't find '" << tagName.get() << "'";
    1.64 +    ASSERT_TRUE((rgb == kColors[index])) <<
    1.65 +      "failed at index " << index << " out of " << ArrayLength(kColorNames);
    1.66 +
    1.67 +    // Check that parsing an RGB value in hex gets the right values
    1.68 +    uint8_t r = NS_GET_R(rgb);
    1.69 +    uint8_t g = NS_GET_G(rgb);
    1.70 +    uint8_t b = NS_GET_B(rgb);
    1.71 +    uint8_t a = NS_GET_A(rgb);
    1.72 +    if (a != UINT8_MAX) {
    1.73 +      // NS_HexToRGB() can not handle a color with alpha channel
    1.74 +      rgb = NS_RGB(r, g, b);
    1.75 +    }
    1.76 +    char cbuf[50];
    1.77 +    PR_snprintf(cbuf, sizeof(cbuf), "%02x%02x%02x", r, g, b);
    1.78 +    nscolor hexrgb;
    1.79 +    ASSERT_TRUE(NS_HexToRGB(NS_ConvertASCIItoUTF16(cbuf), &hexrgb)) <<
    1.80 +      "hex conversion to color of '" << cbuf << "'";
    1.81 +    ASSERT_TRUE(hexrgb == rgb);
    1.82 +  }
    1.83 +}
    1.84 +
    1.85 +static
    1.86 +void RunJunkColorTests() {
    1.87 +  nscolor rgb;
    1.88 +  // Now make sure we don't find some garbage
    1.89 +  for (uint32_t i = 0; i < ArrayLength(kJunkNames); i++) {
    1.90 +    nsCString tag(kJunkNames[i]);
    1.91 +    ASSERT_FALSE(NS_ColorNameToRGB(NS_ConvertASCIItoUTF16(tag), &rgb)) <<
    1.92 +      "Failed at junk color " << kJunkNames[i];
    1.93 +  }
    1.94 +}
    1.95 +
    1.96 +TEST(Gfx, ColorNames) {
    1.97 +  RunColorTests();
    1.98 +}
    1.99 +
   1.100 +TEST(Gfx, JunkColorNames) {
   1.101 +  RunJunkColorTests();
   1.102 +}

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