Extract AppBannerDataFetcher into an InstallableManager.

chrome/browser/installable/installable_checker_unittest.cc

-// Copyright 2015 The Chromium Authors. All rights reserved.
+// Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "chrome/browser/banners/app_banner_data_fetcher.h"
+#include "chrome/browser/installable/installable_checker.h"
 
 #include "base/strings/utf_string_conversions.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/WebKit/public/platform/WebDisplayMode.h"
 
-namespace banners {
+namespace installable {
 
-class AppBannerDataFetcherUnitTest : public testing::Test {
+class InstallableCheckerUnitTest : public testing::Test {
  public:
-  AppBannerDataFetcherUnitTest() { }
+  InstallableCheckerUnitTest() : checker_(new InstallableChecker(nullptr)) { }
 
  protected:
   static base::NullableString16 ToNullableUTF16(const std::string& str) {
     return base::NullableString16(base::UTF8ToUTF16(str), false);
   }
 
   static content::Manifest GetValidManifest() {
     content::Manifest manifest;
     manifest.name = ToNullableUTF16("foo");
     manifest.short_name = ToNullableUTF16("bar");
     manifest.start_url = GURL("http://example.com");
     manifest.display = blink::WebDisplayModeStandalone;
 
     content::Manifest::Icon icon;
     icon.type = ToNullableUTF16("image/png");
     icon.sizes.push_back(gfx::Size(144, 144));
     manifest.icons.push_back(icon);
 
     return manifest;
   }
 
-  static bool IsManifestValid(const content::Manifest& manifest) {
-    // The second argument is the web_contents pointer, which is used for
-    // developer debug logging to the console. The logging is skipped inside the
-    // method if a null web_contents pointer is provided, so this is safe.
-    // The third argument is the is_debug_mode boolean value, which is true only
-    // when it is triggered by the developer's action in DevTools.
-    return AppBannerDataFetcher::IsManifestValidForWebApp(manifest, nullptr,
-                                                          false);
+  bool IsManifestValid(const content::Manifest& manifest) {
+    // Explicitly reset the error code before running the method.
+    checker_->valid_webapp_manifest_error_ = NoErrorDetected;
+    return checker_->IsManifestValidForWebApp(manifest);
   }
+
+  ErrorCode GetErrorCode() {
+    return checker_->valid_webapp_manifest_error_;
+  }
+
+ private:
+  std::unique_ptr<InstallableChecker> checker_;
 };
 
-TEST_F(AppBannerDataFetcherUnitTest, EmptyManifestIsInvalid) {
+TEST_F(InstallableCheckerUnitTest, EmptyManifestIsInvalid) {
   content::Manifest manifest;
   EXPECT_FALSE(IsManifestValid(manifest));
+  EXPECT_EQ(ManifestEmpty, GetErrorCode());
 }
 
-TEST_F(AppBannerDataFetcherUnitTest, CheckMinimalValidManifest) {
+TEST_F(InstallableCheckerUnitTest, CheckMinimalValidManifest) {
   content::Manifest manifest = GetValidManifest();
   EXPECT_TRUE(IsManifestValid(manifest));
+  EXPECT_EQ(NoErrorDetected, GetErrorCode());
 }
 
-TEST_F(AppBannerDataFetcherUnitTest, ManifestRequiresNameORShortName) {
+TEST_F(InstallableCheckerUnitTest, ManifestRequiresNameOrShortName) {
   content::Manifest manifest = GetValidManifest();
 
   manifest.name = base::NullableString16();
   EXPECT_TRUE(IsManifestValid(manifest));
+  EXPECT_EQ(NoErrorDetected, GetErrorCode());
 
   manifest.name = ToNullableUTF16("foo");
   manifest.short_name = base::NullableString16();
   EXPECT_TRUE(IsManifestValid(manifest));
+  EXPECT_EQ(NoErrorDetected, GetErrorCode());
 
   manifest.name = base::NullableString16();
   EXPECT_FALSE(IsManifestValid(manifest));
+  EXPECT_EQ(ManifestMissingNameOrShortName, GetErrorCode());
 }
 
-TEST_F(AppBannerDataFetcherUnitTest, ManifestRequiresNonEmptyNameORShortName) {
+TEST_F(InstallableCheckerUnitTest, ManifestRequiresNonEmptyNameORShortName) {
   content::Manifest manifest = GetValidManifest();
 
   manifest.name = ToNullableUTF16("");
   EXPECT_TRUE(IsManifestValid(manifest));
+  EXPECT_EQ(NoErrorDetected, GetErrorCode());
 
   manifest.name = ToNullableUTF16("foo");
   manifest.short_name = ToNullableUTF16("");
   EXPECT_TRUE(IsManifestValid(manifest));
+  EXPECT_EQ(NoErrorDetected, GetErrorCode());
 
   manifest.name = ToNullableUTF16("");
   EXPECT_FALSE(IsManifestValid(manifest));
+  EXPECT_EQ(ManifestMissingNameOrShortName, GetErrorCode());
 }
 
-TEST_F(AppBannerDataFetcherUnitTest, ManifestRequiresValidStartURL) {
+TEST_F(InstallableCheckerUnitTest, ManifestRequiresValidStartURL) {
   content::Manifest manifest = GetValidManifest();
 
   manifest.start_url = GURL();
   EXPECT_FALSE(IsManifestValid(manifest));
+  EXPECT_EQ(StartUrlNotValid, GetErrorCode());
 
   manifest.start_url = GURL("/");
   EXPECT_FALSE(IsManifestValid(manifest));
+  EXPECT_EQ(StartUrlNotValid, GetErrorCode());
 }
 
-TEST_F(AppBannerDataFetcherUnitTest, ManifestRequiresImagePNG) {
+TEST_F(InstallableCheckerUnitTest, ManifestRequiresImagePNG) {
   content::Manifest manifest = GetValidManifest();
 
   manifest.icons[0].type = ToNullableUTF16("image/gif");
   EXPECT_FALSE(IsManifestValid(manifest));
+  EXPECT_EQ(ManifestMissingSuitableIcon, GetErrorCode());
+
   manifest.icons[0].type = base::NullableString16();
   EXPECT_FALSE(IsManifestValid(manifest));
+  EXPECT_EQ(ManifestMissingSuitableIcon, GetErrorCode());
+
+  // If the type is null, the icon src will be checked instead.
+  manifest.icons[0].src = GURL("http://example.com/icon.png");
+  EXPECT_TRUE(IsManifestValid(manifest));
+  EXPECT_EQ(NoErrorDetected, GetErrorCode());
+
+  // Capital file extension is also permissible.
+  manifest.icons[0].src = GURL("http://example.com/icon.PNG");
+  EXPECT_TRUE(IsManifestValid(manifest));
+  EXPECT_EQ(NoErrorDetected, GetErrorCode());
+
+  // Non-png extensions are rejected.
+  manifest.icons[0].src = GURL("http://example.com/icon.gif");
+  EXPECT_FALSE(IsManifestValid(manifest));
+  EXPECT_EQ(ManifestMissingSuitableIcon, GetErrorCode());
 }
 
-TEST_F(AppBannerDataFetcherUnitTest, ManifestRequiresMinimalSize) {
+TEST_F(InstallableCheckerUnitTest, ManifestRequiresMinimalSize) {
   content::Manifest manifest = GetValidManifest();
 
   // The icon MUST be 144x144 size at least.
   manifest.icons[0].sizes[0] = gfx::Size(1, 1);
   EXPECT_FALSE(IsManifestValid(manifest));
+  EXPECT_EQ(ManifestMissingSuitableIcon, GetErrorCode());
+
+  manifest.icons[0].sizes[0] = gfx::Size(143, 143);
+  EXPECT_FALSE(IsManifestValid(manifest));
+  EXPECT_EQ(ManifestMissingSuitableIcon, GetErrorCode());
 
   // If one of the sizes match the requirement, it should be accepted.
   manifest.icons[0].sizes.push_back(gfx::Size(144, 144));
   EXPECT_TRUE(IsManifestValid(manifest));
+  EXPECT_EQ(NoErrorDetected, GetErrorCode());
 
   // Higher than the required size is okay.
   manifest.icons[0].sizes[1] = gfx::Size(200, 200);
   EXPECT_TRUE(IsManifestValid(manifest));
+  EXPECT_EQ(NoErrorDetected, GetErrorCode());
 
   // Non-square is okay.
   manifest.icons[0].sizes[1] = gfx::Size(144, 200);
   EXPECT_TRUE(IsManifestValid(manifest));
+  EXPECT_EQ(NoErrorDetected, GetErrorCode());
 
   // The representation of the keyword 'any' should be recognized.
   manifest.icons[0].sizes[1] = gfx::Size(0, 0);
   EXPECT_TRUE(IsManifestValid(manifest));
+  EXPECT_EQ(NoErrorDetected, GetErrorCode());
 }
 
-TEST_F(AppBannerDataFetcherUnitTest, ManifestDisplayStandaloneFullscreen) {
+TEST_F(InstallableCheckerUnitTest, ManifestDisplayStandaloneFullscreen) {
   content::Manifest manifest = GetValidManifest();
 
   manifest.display = blink::WebDisplayModeUndefined;
   EXPECT_FALSE(IsManifestValid(manifest));
+  EXPECT_EQ(ManifestDisplayIsNotStandaloneOrFullscreen, GetErrorCode());
 
   manifest.display = blink::WebDisplayModeBrowser;
   EXPECT_FALSE(IsManifestValid(manifest));
+  EXPECT_EQ(ManifestDisplayIsNotStandaloneOrFullscreen, GetErrorCode());
 
   manifest.display = blink::WebDisplayModeMinimalUi;
   EXPECT_FALSE(IsManifestValid(manifest));
+  EXPECT_EQ(ManifestDisplayIsNotStandaloneOrFullscreen, GetErrorCode());
 
   manifest.display = blink::WebDisplayModeStandalone;
   EXPECT_TRUE(IsManifestValid(manifest));
+  EXPECT_EQ(NoErrorDetected, GetErrorCode());
 
   manifest.display = blink::WebDisplayModeFullscreen;
   EXPECT_TRUE(IsManifestValid(manifest));
+  EXPECT_EQ(NoErrorDetected, GetErrorCode());
 }
 
-}  // namespace banners
+}  // namespace installable