[Garbled Text][Infobar] Adding infobar to suggest turning on encoding detection.

chrome/browser/garbled_text_url_tracker_unittest.cc

+// Copyright (c) 2012 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 "base/memory/scoped_ptr.h"
+#include "chrome/browser/garbled_text_url_tracker.h"
+#include "chrome/browser/prefs/pref_service.h"
+#include "chrome/common/pref_names.h"
+#include "chrome/test/base/testing_profile.h"
+#include "googleurl/src/gurl.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+class GarbledTextURLTrackerTest : public testing::Test {
+ public:
+  typedef GarbledTextURLTracker::Blacklist Blacklist;
+  typedef GarbledTextURLTracker::GarbledURLs GarbledURLs;
+  GarbledTextURLTrackerTest() {}
+
+ protected:
+  virtual void SetUp() OVERRIDE {
+    enabled_.Init(prefs::kEnableAutoGarbledTextFix,
+                  profile_.GetPrefs(), NULL);
+  }
+
+  virtual void TearDown() OVERRIDE {
+  }
+
+  const BooleanPrefMember& enabled() {
+    return enabled_;
+  }
+
+  void set_enabled(bool enabled) {
+    enabled_.SetValue(enabled);
+  }
+
+ private:
+  TestingProfile profile_;
+  BooleanPrefMember enabled_;
+
+  DISALLOW_COPY_AND_ASSIGN(GarbledTextURLTrackerTest);
+};
+
+TEST_F(GarbledTextURLTrackerTest, QueryAndAddTest) {
+  std::string kBlacklist[] = {
+    "foo.example.com",
+    "bar.example.com",
+    "baz.example.com",
+  };
+  GarbledTextURLTracker tracker(
+      enabled(),
+      Blacklist(kBlacklist, kBlacklist + arraysize(kBlacklist)));
+
+  EXPECT_TRUE(tracker.NeedsEncodingDetection(
+      GURL("https://foo.example.com/apple/banana/cherry.csv")));
+  EXPECT_FALSE(tracker.NeedsEncodingDetection(
+      GURL("ftp://fizz.example.com/cat/dog.png")));
+
+  GURL kGarbledURLs[] = {
+    GURL("http://fizz.example.com/hoge/fuga/piyo.html"),
+    GURL("file://buzz.example.com/fuga.txt"),
+    GURL("http://fizz.example.com/piyo.css"),
+  };
+  Blacklist delta;
+  tracker.UpdateBlacklist(
+      GarbledURLs(kGarbledURLs, kGarbledURLs + arraysize(kGarbledURLs)),
+      &delta);
+  EXPECT_EQ(2u, delta.size());
+  EXPECT_TRUE(delta.find("fizz.example.com") != delta.end());
+  EXPECT_TRUE(delta.find("buzz.example.com") != delta.end());
+
+  EXPECT_TRUE(tracker.NeedsEncodingDetection(
+      GURL("gopher://fizz.example.com/pakeratta.dat")));
+  EXPECT_FALSE(tracker.NeedsEncodingDetection(
+      GURL("wss://puyo.example.com/fire/ice.xml")));
+}
+
+TEST_F(GarbledTextURLTrackerTest, DisablingTest) {
+  std::string kBlacklist[] = {
+    "coffee.example.com",
+    "tea.example.com",
+  };
+  GarbledTextURLTracker tracker(
+      enabled(),
+      Blacklist(kBlacklist, kBlacklist + arraysize(kBlacklist)));
+
+  set_enabled(false);
+  EXPECT_FALSE(tracker.NeedsEncodingDetection(
+      GURL("http://coffee.example.com/cup.txt")));
+  EXPECT_FALSE(tracker.NeedsEncodingDetection(
+      GURL("http://vodka.example.com/barrel.bat")));
+
+  GURL kGarbledURLs[] = {
+    GURL("http://tabasco.example.com/stein.tar"),
+  };
+  Blacklist delta;
+  tracker.UpdateBlacklist(
+      GarbledURLs(kGarbledURLs, kGarbledURLs + arraysize(kGarbledURLs)),
+      &delta);
+  EXPECT_TRUE(delta.empty());
+
+  set_enabled(true);
+  EXPECT_TRUE(tracker.NeedsEncodingDetection(
+      GURL("http://coffee.example.com/milk.js")));
+  EXPECT_FALSE(tracker.NeedsEncodingDetection(
+      GURL("http://tabasco.example.com/")));
+}