src/chrome/browser/themes/browser_theme_pack_unittest.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/themes/browser_theme_pack.h"
   6
   7 #include "base/files/scoped_temp_dir.h"
   8 #include "base/json/json_file_value_serializer.h"
   9 #include "base/json/json_reader.h"
  10 #include "base/message_loop/message_loop.h"
  11 #include "base/path_service.h"
  12 #include "base/values.h"
  13 #include "chrome/browser/themes/theme_properties.h"
  14 #include "chrome/common/chrome_paths.h"
  15 #include "content/public/test/test_browser_thread.h"
  16 #include "grit/theme_resources.h"
  17 #include "testing/gtest/include/gtest/gtest.h"
  18 #include "ui/gfx/color_utils.h"
  19 #include "ui/gfx/image/image.h"
  20 #include "ui/gfx/image/image_skia.h"
  21 #include "ui/gfx/image/image_skia_rep.h"
  22
  23 using content::BrowserThread;
  24 using extensions::Extension;
  25
  26 // Maps scale factors (enum values) to file path.
  27 // A similar typedef in BrowserThemePack is private.
  28 typedef std::map<ui::ScaleFactor, base::FilePath> TestScaleFactorToFileMap;
  29
  30 // Maps image ids to maps of scale factors to file paths.
  31 // A similar typedef in BrowserThemePack is private.
  32 typedef std::map<int, TestScaleFactorToFileMap> TestFilePathMap;
  33
  34 class BrowserThemePackTest : public ::testing::Test {
  35  public:
  36   BrowserThemePackTest()
  37       : message_loop(),
  38         fake_ui_thread(BrowserThread::UI, &message_loop),
  39         fake_file_thread(BrowserThread::FILE, &message_loop) {
  40     std::vector<ui::ScaleFactor> scale_factors;
  41     scale_factors.push_back(ui::SCALE_FACTOR_100P);
  42     scale_factors.push_back(ui::SCALE_FACTOR_200P);
  43     scoped_set_supported_scale_factors_.reset(
  44       new ui::test::ScopedSetSupportedScaleFactors(scale_factors));
  45     theme_pack_ = new BrowserThemePack();
  46   }
  47
  48   // Transformation for link underline colors.
  49   SkColor BuildThirdOpacity(SkColor color_link) {
  50     return SkColorSetA(color_link, SkColorGetA(color_link) / 3);
  51   }
  52
  53   void GenerateDefaultFrameColor(std::map<int, SkColor>* colors,
  54                                  int color, int tint) {
  55     (*colors)[color] = HSLShift(
  56         ThemeProperties::GetDefaultColor(
  57             ThemeProperties::COLOR_FRAME),
  58         ThemeProperties::GetDefaultTint(tint));
  59   }
  60
  61   // Returns a mapping from each COLOR_* constant to the default value for this
  62   // constant. Callers get this map, and then modify expected values and then
  63   // run the resulting thing through VerifyColorMap().
  64   std::map<int, SkColor> GetDefaultColorMap() {
  65     std::map<int, SkColor> colors;
  66     for (int i = ThemeProperties::COLOR_FRAME;
  67          i <= ThemeProperties::COLOR_BUTTON_BACKGROUND; ++i) {
  68       colors[i] = ThemeProperties::GetDefaultColor(i);
  69     }
  70
  71     GenerateDefaultFrameColor(&colors, ThemeProperties::COLOR_FRAME,
  72                               ThemeProperties::TINT_FRAME);
  73     GenerateDefaultFrameColor(&colors,
  74                               ThemeProperties::COLOR_FRAME_INACTIVE,
  75                               ThemeProperties::TINT_FRAME_INACTIVE);
  76     GenerateDefaultFrameColor(&colors,
  77                               ThemeProperties::COLOR_FRAME_INCOGNITO,
  78                               ThemeProperties::TINT_FRAME_INCOGNITO);
  79     GenerateDefaultFrameColor(
  80         &colors,
  81         ThemeProperties::COLOR_FRAME_INCOGNITO_INACTIVE,
  82         ThemeProperties::TINT_FRAME_INCOGNITO_INACTIVE);
  83
  84     return colors;
  85   }
  86
  87   void VerifyColorMap(const std::map<int, SkColor>& color_map) {
  88     for (std::map<int, SkColor>::const_iterator it = color_map.begin();
  89          it != color_map.end(); ++it) {
  90       SkColor color = ThemeProperties::GetDefaultColor(it->first);
  91       theme_pack_->GetColor(it->first, &color);
  92       EXPECT_EQ(it->second, color) << "Color id = " << it->first;
  93     }
  94   }
  95
  96   void LoadColorJSON(const std::string& json) {
  97     scoped_ptr<base::Value> value(base::JSONReader::Read(json));
  98     ASSERT_TRUE(value->IsType(base::Value::TYPE_DICTIONARY));
  99     LoadColorDictionary(static_cast<base::DictionaryValue*>(value.get()));
 100   }
 101
 102   void LoadColorDictionary(base::DictionaryValue* value) {
 103     theme_pack_->BuildColorsFromJSON(value);
 104   }
 105
 106   void LoadTintJSON(const std::string& json) {
 107     scoped_ptr<base::Value> value(base::JSONReader::Read(json));
 108     ASSERT_TRUE(value->IsType(base::Value::TYPE_DICTIONARY));
 109     LoadTintDictionary(static_cast<base::DictionaryValue*>(value.get()));
 110   }
 111
 112   void LoadTintDictionary(base::DictionaryValue* value) {
 113     theme_pack_->BuildTintsFromJSON(value);
 114   }
 115
 116   void LoadDisplayPropertiesJSON(const std::string& json) {
 117     scoped_ptr<base::Value> value(base::JSONReader::Read(json));
 118     ASSERT_TRUE(value->IsType(base::Value::TYPE_DICTIONARY));
 119     LoadDisplayPropertiesDictionary(
 120         static_cast<base::DictionaryValue*>(value.get()));
 121   }
 122
 123   void LoadDisplayPropertiesDictionary(base::DictionaryValue* value) {
 124     theme_pack_->BuildDisplayPropertiesFromJSON(value);
 125   }
 126
 127   void ParseImageNamesJSON(const std::string& json,
 128                            TestFilePathMap* out_file_paths) {
 129     scoped_ptr<base::Value> value(base::JSONReader::Read(json));
 130     ASSERT_TRUE(value->IsType(base::Value::TYPE_DICTIONARY));
 131     ParseImageNamesDictionary(static_cast<base::DictionaryValue*>(value.get()),
 132                               out_file_paths);
 133   }
 134
 135   void ParseImageNamesDictionary(
 136       base::DictionaryValue* value,
 137       TestFilePathMap* out_file_paths) {
 138     theme_pack_->ParseImageNamesFromJSON(value, base::FilePath(),
 139                                          out_file_paths);
 140
 141     // Build the source image list for HasCustomImage().
 142     theme_pack_->BuildSourceImagesArray(*out_file_paths);
 143   }
 144
 145   bool LoadRawBitmapsTo(const TestFilePathMap& out_file_paths) {
 146     return theme_pack_->LoadRawBitmapsTo(out_file_paths,
 147                                          &theme_pack_->images_on_ui_thread_);
 148   }
 149
 150   // This function returns void in order to be able use ASSERT_...
 151   // The BrowserThemePack is returned in |pack|.
 152   void BuildFromUnpackedExtension(const base::FilePath& extension_path,
 153                                   scoped_refptr<BrowserThemePack>& pack) {
 154     base::FilePath manifest_path =
 155         extension_path.AppendASCII("manifest.json");
 156     std::string error;
 157     JSONFileValueSerializer serializer(manifest_path);
 158     scoped_ptr<base::DictionaryValue> valid_value(
 159         static_cast<base::DictionaryValue*>(
 160             serializer.Deserialize(NULL, &error)));
 161     EXPECT_EQ("", error);
 162     ASSERT_TRUE(valid_value.get());
 163     scoped_refptr<Extension> extension(
 164         Extension::Create(
 165             extension_path,
 166             extensions::Manifest::INVALID_LOCATION,
 167             *valid_value,
 168             Extension::REQUIRE_KEY,
 169             &error));
 170     ASSERT_TRUE(extension.get());
 171     ASSERT_EQ("", error);
 172     pack = BrowserThemePack::BuildFromExtension(extension.get());
 173     ASSERT_TRUE(pack.get());
 174   }
 175
 176   base::FilePath GetStarGazingPath() {
 177     base::FilePath test_path;
 178     if (!PathService::Get(chrome::DIR_TEST_DATA, &test_path)) {
 179       NOTREACHED();
 180       return test_path;
 181     }
 182
 183     test_path = test_path.AppendASCII("profiles");
 184     test_path = test_path.AppendASCII("profile_with_complex_theme");
 185     test_path = test_path.AppendASCII("Default");
 186     test_path = test_path.AppendASCII("Extensions");
 187     test_path = test_path.AppendASCII("mblmlcbknbnfebdfjnolmcapmdofhmme");
 188     test_path = test_path.AppendASCII("1.1");
 189     return base::FilePath(test_path);
 190   }
 191
 192   base::FilePath GetHiDpiThemePath() {
 193     base::FilePath test_path;
 194     if (!PathService::Get(chrome::DIR_TEST_DATA, &test_path)) {
 195       NOTREACHED();
 196       return test_path;
 197     }
 198     test_path = test_path.AppendASCII("extensions");
 199     test_path = test_path.AppendASCII("theme_hidpi");
 200     return base::FilePath(test_path);
 201   }
 202
 203   // Verifies the data in star gazing. We do this multiple times for different
 204   // BrowserThemePack objects to make sure it works in generated and mmapped
 205   // mode correctly.
 206   void VerifyStarGazing(BrowserThemePack* pack) {
 207     // First check that values we know exist, exist.
 208     SkColor color;
 209     EXPECT_TRUE(pack->GetColor(ThemeProperties::COLOR_BOOKMARK_TEXT,
 210                                &color));
 211     EXPECT_EQ(SK_ColorBLACK, color);
 212
 213     EXPECT_TRUE(pack->GetColor(ThemeProperties::COLOR_NTP_BACKGROUND,
 214                                &color));
 215     EXPECT_EQ(SkColorSetRGB(57, 137, 194), color);
 216
 217     color_utils::HSL expected = { 0.6, 0.553, 0.5 };
 218     color_utils::HSL actual;
 219     EXPECT_TRUE(pack->GetTint(ThemeProperties::TINT_BUTTONS, &actual));
 220     EXPECT_DOUBLE_EQ(expected.h, actual.h);
 221     EXPECT_DOUBLE_EQ(expected.s, actual.s);
 222     EXPECT_DOUBLE_EQ(expected.l, actual.l);
 223
 224     int val;
 225     EXPECT_TRUE(pack->GetDisplayProperty(
 226         ThemeProperties::NTP_BACKGROUND_ALIGNMENT, &val));
 227     EXPECT_EQ(ThemeProperties::ALIGN_TOP, val);
 228
 229     // The stargazing theme defines the following images:
 230     EXPECT_TRUE(pack->HasCustomImage(IDR_THEME_BUTTON_BACKGROUND));
 231     EXPECT_TRUE(pack->HasCustomImage(IDR_THEME_FRAME));
 232     EXPECT_TRUE(pack->HasCustomImage(IDR_THEME_NTP_BACKGROUND));
 233     EXPECT_TRUE(pack->HasCustomImage(IDR_THEME_TAB_BACKGROUND));
 234     EXPECT_TRUE(pack->HasCustomImage(IDR_THEME_TOOLBAR));
 235     EXPECT_TRUE(pack->HasCustomImage(IDR_THEME_WINDOW_CONTROL_BACKGROUND));
 236
 237     // Here are a few images that we shouldn't expect because even though
 238     // they're included in the theme pack, they were autogenerated and
 239     // therefore shouldn't show up when calling HasCustomImage().
 240     EXPECT_FALSE(pack->HasCustomImage(IDR_THEME_FRAME_INACTIVE));
 241     EXPECT_FALSE(pack->HasCustomImage(IDR_THEME_FRAME_INCOGNITO));
 242     EXPECT_FALSE(pack->HasCustomImage(IDR_THEME_FRAME_INCOGNITO_INACTIVE));
 243     EXPECT_FALSE(pack->HasCustomImage(IDR_THEME_TAB_BACKGROUND_INCOGNITO));
 244
 245     // Make sure we don't have phantom data.
 246     EXPECT_FALSE(pack->GetColor(ThemeProperties::COLOR_CONTROL_BACKGROUND,
 247                                 &color));
 248     EXPECT_FALSE(pack->GetTint(ThemeProperties::TINT_FRAME, &actual));
 249   }
 250
 251   void VerifyHiDpiTheme(BrowserThemePack* pack) {
 252     // The high DPI theme defines the following images:
 253     EXPECT_TRUE(pack->HasCustomImage(IDR_THEME_FRAME));
 254     EXPECT_TRUE(pack->HasCustomImage(IDR_THEME_FRAME_INACTIVE));
 255     EXPECT_TRUE(pack->HasCustomImage(IDR_THEME_FRAME_INCOGNITO));
 256     EXPECT_TRUE(pack->HasCustomImage(IDR_THEME_FRAME_INCOGNITO_INACTIVE));
 257     EXPECT_TRUE(pack->HasCustomImage(IDR_THEME_TOOLBAR));
 258
 259     // The high DPI theme does not define the following images:
 260     EXPECT_FALSE(pack->HasCustomImage(IDR_THEME_TAB_BACKGROUND));
 261     EXPECT_FALSE(pack->HasCustomImage(IDR_THEME_TAB_BACKGROUND));
 262     EXPECT_FALSE(pack->HasCustomImage(IDR_THEME_TAB_BACKGROUND_INCOGNITO));
 263     EXPECT_FALSE(pack->HasCustomImage(IDR_THEME_TAB_BACKGROUND_V));
 264     EXPECT_FALSE(pack->HasCustomImage(IDR_THEME_NTP_BACKGROUND));
 265     EXPECT_FALSE(pack->HasCustomImage(IDR_THEME_FRAME_OVERLAY));
 266     EXPECT_FALSE(pack->HasCustomImage(IDR_THEME_FRAME_OVERLAY_INACTIVE));
 267     EXPECT_FALSE(pack->HasCustomImage(IDR_THEME_BUTTON_BACKGROUND));
 268     EXPECT_FALSE(pack->HasCustomImage(IDR_THEME_NTP_ATTRIBUTION));
 269     EXPECT_FALSE(pack->HasCustomImage(IDR_THEME_WINDOW_CONTROL_BACKGROUND));
 270
 271     // Compare some known pixel colors at know locations for a theme
 272     // image where two different PNG files were specified for scales 100%
 273     // and 200% respectively.
 274     int idr = IDR_THEME_FRAME;
 275     gfx::Image image = pack->GetImageNamed(idr);
 276     EXPECT_FALSE(image.IsEmpty());
 277     const gfx::ImageSkia* image_skia = image.ToImageSkia();
 278     ASSERT_TRUE(image_skia);
 279     // Scale 100%.
 280     const gfx::ImageSkiaRep& rep1 = image_skia->GetRepresentation(1.0f);
 281     ASSERT_FALSE(rep1.is_null());
 282     EXPECT_EQ(80, rep1.sk_bitmap().width());
 283     EXPECT_EQ(80, rep1.sk_bitmap().height());
 284     rep1.sk_bitmap().lockPixels();
 285     EXPECT_EQ(SkColorSetRGB(255, 255, 255), rep1.sk_bitmap().getColor( 4,  4));
 286     EXPECT_EQ(SkColorSetRGB(255, 255, 255), rep1.sk_bitmap().getColor( 8,  8));
 287     EXPECT_EQ(SkColorSetRGB(  0, 241, 237), rep1.sk_bitmap().getColor(16, 16));
 288     EXPECT_EQ(SkColorSetRGB(255, 255, 255), rep1.sk_bitmap().getColor(24, 24));
 289     EXPECT_EQ(SkColorSetRGB(  0, 241, 237), rep1.sk_bitmap().getColor(32, 32));
 290     rep1.sk_bitmap().unlockPixels();
 291     // Scale 200%.
 292     const gfx::ImageSkiaRep& rep2 = image_skia->GetRepresentation(2.0f);
 293     ASSERT_FALSE(rep2.is_null());
 294     EXPECT_EQ(160, rep2.sk_bitmap().width());
 295     EXPECT_EQ(160, rep2.sk_bitmap().height());
 296     rep2.sk_bitmap().lockPixels();
 297     EXPECT_EQ(SkColorSetRGB(255, 255, 255), rep2.sk_bitmap().getColor( 4,  4));
 298     EXPECT_EQ(SkColorSetRGB(223,  42,   0), rep2.sk_bitmap().getColor( 8,  8));
 299     EXPECT_EQ(SkColorSetRGB(223,  42,   0), rep2.sk_bitmap().getColor(16, 16));
 300     EXPECT_EQ(SkColorSetRGB(223,  42,   0), rep2.sk_bitmap().getColor(24, 24));
 301     EXPECT_EQ(SkColorSetRGB(255, 255, 255), rep2.sk_bitmap().getColor(32, 32));
 302     rep2.sk_bitmap().unlockPixels();
 303
 304     // TODO(sschmitz): I plan to remove the following (to the end of the fct)
 305     // Reason: this test may be brittle. It depends on details of how we scale
 306     // an 100% image to an 200% image. If there's filtering etc, this test would
 307     // break. Also High DPI is new, but scaling from 100% to 200% is not new
 308     // and need not be tested here. But in the interrim it is useful to verify
 309     // that this image was scaled and did not appear in the input.
 310
 311     // Compare pixel colors and locations for a theme image that had
 312     // only one PNG file specified (for scale 100%). The representation
 313     // for scale of 200% was computed.
 314     idr = IDR_THEME_FRAME_INCOGNITO_INACTIVE;
 315     image = pack->GetImageNamed(idr);
 316     EXPECT_FALSE(image.IsEmpty());
 317     image_skia = image.ToImageSkia();
 318     ASSERT_TRUE(image_skia);
 319     // Scale 100%.
 320     const gfx::ImageSkiaRep& rep3 = image_skia->GetRepresentation(1.0f);
 321     ASSERT_FALSE(rep3.is_null());
 322     EXPECT_EQ(80, rep3.sk_bitmap().width());
 323     EXPECT_EQ(80, rep3.sk_bitmap().height());
 324     rep3.sk_bitmap().lockPixels();
 325     // We take samples of colors and locations along the diagonal whenever
 326     // the color changes. Note these colors are slightly different from
 327     // the input PNG file due to input processing.
 328     std::vector<std::pair<int, SkColor> > normal;
 329     int xy = 0;
 330     SkColor color = rep3.sk_bitmap().getColor(xy, xy);
 331     normal.push_back(std::make_pair(xy, color));
 332     for (int xy = 0; xy < 40; ++xy) {
 333       SkColor next_color = rep3.sk_bitmap().getColor(xy, xy);
 334       if (next_color != color) {
 335         color = next_color;
 336         normal.push_back(std::make_pair(xy, color));
 337       }
 338     }
 339     EXPECT_EQ(static_cast<size_t>(9), normal.size());
 340     rep3.sk_bitmap().unlockPixels();
 341     // Scale 200%.
 342     const gfx::ImageSkiaRep& rep4 = image_skia->GetRepresentation(2.0f);
 343     ASSERT_FALSE(rep4.is_null());
 344     EXPECT_EQ(160, rep4.sk_bitmap().width());
 345     EXPECT_EQ(160, rep4.sk_bitmap().height());
 346     rep4.sk_bitmap().lockPixels();
 347     // We expect the same colors and at locations scaled by 2
 348     // since this bitmap was scaled by 2.
 349     for (size_t i = 0; i < normal.size(); ++i) {
 350       int xy = 2 * normal[i].first;
 351       SkColor color = normal[i].second;
 352       EXPECT_EQ(color, rep4.sk_bitmap().getColor(xy, xy));
 353     }
 354     rep4.sk_bitmap().unlockPixels();
 355   }
 356
 357   base::MessageLoop message_loop;
 358   content::TestBrowserThread fake_ui_thread;
 359   content::TestBrowserThread fake_file_thread;
 360
 361   typedef scoped_ptr<ui::test::ScopedSetSupportedScaleFactors>
 362       ScopedSetSupportedScaleFactors;
 363   ScopedSetSupportedScaleFactors scoped_set_supported_scale_factors_;
 364   scoped_refptr<BrowserThemePack> theme_pack_;
 365 };
 366
 367
 368 TEST_F(BrowserThemePackTest, DeriveUnderlineLinkColor) {
 369   // If we specify a link color, but don't specify the underline color, the
 370   // theme provider should create one.
 371   std::string color_json = "{ \"ntp_link\": [128, 128, 128],"
 372                            "  \"ntp_section_link\": [128, 128, 128] }";
 373   LoadColorJSON(color_json);
 374
 375   std::map<int, SkColor> colors = GetDefaultColorMap();
 376   SkColor link_color = SkColorSetRGB(128, 128, 128);
 377   colors[ThemeProperties::COLOR_NTP_LINK] = link_color;
 378   colors[ThemeProperties::COLOR_NTP_LINK_UNDERLINE] =
 379       BuildThirdOpacity(link_color);
 380   colors[ThemeProperties::COLOR_NTP_SECTION_LINK] = link_color;
 381   colors[ThemeProperties::COLOR_NTP_SECTION_LINK_UNDERLINE] =
 382       BuildThirdOpacity(link_color);
 383
 384   VerifyColorMap(colors);
 385 }
 386
 387 TEST_F(BrowserThemePackTest, ProvideUnderlineLinkColor) {
 388   // If we specify the underline color, it shouldn't try to generate one.
 389   std::string color_json = "{ \"ntp_link\": [128, 128, 128],"
 390                            "  \"ntp_link_underline\": [255, 255, 255],"
 391                            "  \"ntp_section_link\": [128, 128, 128],"
 392                            "  \"ntp_section_link_underline\": [255, 255, 255]"
 393                            "}";
 394   LoadColorJSON(color_json);
 395
 396   std::map<int, SkColor> colors = GetDefaultColorMap();
 397   SkColor link_color = SkColorSetRGB(128, 128, 128);
 398   SkColor underline_color = SkColorSetRGB(255, 255, 255);
 399   colors[ThemeProperties::COLOR_NTP_LINK] = link_color;
 400   colors[ThemeProperties::COLOR_NTP_LINK_UNDERLINE] = underline_color;
 401   colors[ThemeProperties::COLOR_NTP_SECTION_LINK] = link_color;
 402   colors[ThemeProperties::COLOR_NTP_SECTION_LINK_UNDERLINE] =
 403       underline_color;
 404
 405   VerifyColorMap(colors);
 406 }
 407
 408 TEST_F(BrowserThemePackTest, UseSectionColorAsNTPHeader) {
 409   std::string color_json = "{ \"ntp_section\": [190, 190, 190] }";
 410   LoadColorJSON(color_json);
 411
 412   std::map<int, SkColor> colors = GetDefaultColorMap();
 413   SkColor ntp_color = SkColorSetRGB(190, 190, 190);
 414   colors[ThemeProperties::COLOR_NTP_HEADER] = ntp_color;
 415   colors[ThemeProperties::COLOR_NTP_SECTION] = ntp_color;
 416   VerifyColorMap(colors);
 417 }
 418
 419 TEST_F(BrowserThemePackTest, ProvideNtpHeaderColor) {
 420   std::string color_json = "{ \"ntp_header\": [120, 120, 120], "
 421                            "  \"ntp_section\": [190, 190, 190] }";
 422   LoadColorJSON(color_json);
 423
 424   std::map<int, SkColor> colors = GetDefaultColorMap();
 425   SkColor ntp_header = SkColorSetRGB(120, 120, 120);
 426   SkColor ntp_section = SkColorSetRGB(190, 190, 190);
 427   colors[ThemeProperties::COLOR_NTP_HEADER] = ntp_header;
 428   colors[ThemeProperties::COLOR_NTP_SECTION] = ntp_section;
 429   VerifyColorMap(colors);
 430 }
 431
 432 TEST_F(BrowserThemePackTest, CanReadTints) {
 433   std::string tint_json = "{ \"buttons\": [ 0.5, 0.5, 0.5 ] }";
 434   LoadTintJSON(tint_json);
 435
 436   color_utils::HSL expected = { 0.5, 0.5, 0.5 };
 437   color_utils::HSL actual = { -1, -1, -1 };
 438   EXPECT_TRUE(theme_pack_->GetTint(
 439       ThemeProperties::TINT_BUTTONS, &actual));
 440   EXPECT_DOUBLE_EQ(expected.h, actual.h);
 441   EXPECT_DOUBLE_EQ(expected.s, actual.s);
 442   EXPECT_DOUBLE_EQ(expected.l, actual.l);
 443 }
 444
 445 TEST_F(BrowserThemePackTest, CanReadDisplayProperties) {
 446   std::string json = "{ \"ntp_background_alignment\": \"bottom\", "
 447                      "  \"ntp_background_repeat\": \"repeat-x\", "
 448                      "  \"ntp_logo_alternate\": 0 }";
 449   LoadDisplayPropertiesJSON(json);
 450
 451   int out_val;
 452   EXPECT_TRUE(theme_pack_->GetDisplayProperty(
 453       ThemeProperties::NTP_BACKGROUND_ALIGNMENT, &out_val));
 454   EXPECT_EQ(ThemeProperties::ALIGN_BOTTOM, out_val);
 455
 456   EXPECT_TRUE(theme_pack_->GetDisplayProperty(
 457       ThemeProperties::NTP_BACKGROUND_TILING, &out_val));
 458   EXPECT_EQ(ThemeProperties::REPEAT_X, out_val);
 459
 460   EXPECT_TRUE(theme_pack_->GetDisplayProperty(
 461       ThemeProperties::NTP_LOGO_ALTERNATE, &out_val));
 462   EXPECT_EQ(0, out_val);
 463 }
 464
 465 TEST_F(BrowserThemePackTest, CanParsePaths) {
 466   std::string path_json = "{ \"theme_button_background\": \"one\", "
 467                           "  \"theme_toolbar\": \"two\" }";
 468   TestFilePathMap out_file_paths;
 469   ParseImageNamesJSON(path_json, &out_file_paths);
 470
 471   size_t expected_file_paths = 2u;
 472 #if defined(OS_WIN) && defined(USE_AURA)
 473   // On Windows AURA additional theme paths are generated to map to the special
 474   // resource ids like IDR_THEME_FRAME_WIN, etc
 475   expected_file_paths = 3u;
 476 #endif
 477   EXPECT_EQ(expected_file_paths, out_file_paths.size());
 478   // "12" and "5" are internal constants to BrowserThemePack and are
 479   // PRS_THEME_BUTTON_BACKGROUND and PRS_THEME_TOOLBAR, but they are
 480   // implementation details that shouldn't be exported.
 481   // By default the scale factor is for 100%.
 482   EXPECT_TRUE(base::FilePath(FILE_PATH_LITERAL("one")) ==
 483               out_file_paths[12][ui::SCALE_FACTOR_100P]);
 484   EXPECT_TRUE(base::FilePath(FILE_PATH_LITERAL("two")) ==
 485               out_file_paths[5][ui::SCALE_FACTOR_100P]);
 486 }
 487
 488 TEST_F(BrowserThemePackTest, InvalidPathNames) {
 489   std::string path_json = "{ \"wrong\": [1], "
 490                           "  \"theme_button_background\": \"one\", "
 491                           "  \"not_a_thing\": \"blah\" }";
 492   TestFilePathMap out_file_paths;
 493   ParseImageNamesJSON(path_json, &out_file_paths);
 494
 495   // We should have only parsed one valid path out of that mess above.
 496   EXPECT_EQ(1u, out_file_paths.size());
 497 }
 498
 499 TEST_F(BrowserThemePackTest, InvalidColors) {
 500   std::string invalid_color = "{ \"toolbar\": [\"dog\", \"cat\", [12]], "
 501                               "  \"sound\": \"woof\" }";
 502   LoadColorJSON(invalid_color);
 503   std::map<int, SkColor> colors = GetDefaultColorMap();
 504   VerifyColorMap(colors);
 505 }
 506
 507 TEST_F(BrowserThemePackTest, InvalidTints) {
 508   std::string invalid_tints = "{ \"buttons\": [ \"dog\", \"cat\", [\"x\"]], "
 509                               "  \"invalid\": \"entry\" }";
 510   LoadTintJSON(invalid_tints);
 511
 512   // We shouldn't have a buttons tint, as it was invalid.
 513   color_utils::HSL actual = { -1, -1, -1 };
 514   EXPECT_FALSE(theme_pack_->GetTint(ThemeProperties::TINT_BUTTONS,
 515                                     &actual));
 516 }
 517
 518 TEST_F(BrowserThemePackTest, InvalidDisplayProperties) {
 519   std::string invalid_properties = "{ \"ntp_background_alignment\": [15], "
 520                                    "  \"junk\": [15.3] }";
 521   LoadDisplayPropertiesJSON(invalid_properties);
 522
 523   int out_val;
 524   EXPECT_FALSE(theme_pack_->GetDisplayProperty(
 525       ThemeProperties::NTP_BACKGROUND_ALIGNMENT, &out_val));
 526 }
 527
 528 // These three tests should just not cause a segmentation fault.
 529 TEST_F(BrowserThemePackTest, NullPaths) {
 530   TestFilePathMap out_file_paths;
 531   ParseImageNamesDictionary(NULL, &out_file_paths);
 532 }
 533
 534 TEST_F(BrowserThemePackTest, NullTints) {
 535   LoadTintDictionary(NULL);
 536 }
 537
 538 TEST_F(BrowserThemePackTest, NullColors) {
 539   LoadColorDictionary(NULL);
 540 }
 541
 542 TEST_F(BrowserThemePackTest, NullDisplayProperties) {
 543   LoadDisplayPropertiesDictionary(NULL);
 544 }
 545
 546 TEST_F(BrowserThemePackTest, TestHasCustomImage) {
 547   // HasCustomImage should only return true for images that exist in the
 548   // extension and not for autogenerated images.
 549   std::string images = "{ \"theme_frame\": \"one\" }";
 550   TestFilePathMap out_file_paths;
 551   ParseImageNamesJSON(images, &out_file_paths);
 552
 553   EXPECT_TRUE(theme_pack_->HasCustomImage(IDR_THEME_FRAME));
 554   EXPECT_FALSE(theme_pack_->HasCustomImage(IDR_THEME_FRAME_INCOGNITO));
 555 }
 556
 557 TEST_F(BrowserThemePackTest, TestNonExistantImages) {
 558   std::string images = "{ \"theme_frame\": \"does_not_exist\" }";
 559   TestFilePathMap out_file_paths;
 560   ParseImageNamesJSON(images, &out_file_paths);
 561
 562   EXPECT_FALSE(LoadRawBitmapsTo(out_file_paths));
 563 }
 564
 565 // TODO(erg): This test should actually test more of the built resources from
 566 // the extension data, but for now, exists so valgrind can test some of the
 567 // tricky memory stuff that BrowserThemePack does.
 568 TEST_F(BrowserThemePackTest, CanBuildAndReadPack) {
 569   base::ScopedTempDir dir;
 570   ASSERT_TRUE(dir.CreateUniqueTempDir());
 571   base::FilePath file = dir.path().AppendASCII("data.pak");
 572
 573   // Part 1: Build the pack from an extension.
 574   {
 575     base::FilePath star_gazing_path = GetStarGazingPath();
 576     scoped_refptr<BrowserThemePack> pack;
 577     BuildFromUnpackedExtension(star_gazing_path, pack);
 578     ASSERT_TRUE(pack->WriteToDisk(file));
 579     VerifyStarGazing(pack.get());
 580   }
 581
 582   // Part 2: Try to read back the data pack that we just wrote to disk.
 583   {
 584     scoped_refptr<BrowserThemePack> pack =
 585         BrowserThemePack::BuildFromDataPack(
 586             file, "mblmlcbknbnfebdfjnolmcapmdofhmme");
 587     ASSERT_TRUE(pack.get());
 588     VerifyStarGazing(pack.get());
 589   }
 590 }
 591
 592 TEST_F(BrowserThemePackTest, HiDpiThemeTest) {
 593   base::ScopedTempDir dir;
 594   ASSERT_TRUE(dir.CreateUniqueTempDir());
 595   base::FilePath file = dir.path().AppendASCII("theme_data.pak");
 596
 597   // Part 1: Build the pack from an extension.
 598   {
 599     base::FilePath hidpi_path = GetHiDpiThemePath();
 600     scoped_refptr<BrowserThemePack> pack;
 601     BuildFromUnpackedExtension(hidpi_path, pack);
 602     ASSERT_TRUE(pack->WriteToDisk(file));
 603     VerifyHiDpiTheme(pack.get());
 604   }
 605
 606   // Part 2: Try to read back the data pack that we just wrote to disk.
 607   {
 608     scoped_refptr<BrowserThemePack> pack =
 609         BrowserThemePack::BuildFromDataPack(file, "gllekhaobjnhgeag");
 610     ASSERT_TRUE(pack.get());
 611     VerifyHiDpiTheme(pack.get());
 612   }
 613 }