// Copyright 2014 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 <stddef.h>
#include <stdint.h>

#include <utility>
#include <vector>

#include "base/macros.h"
#include "content/browser/appcache/appcache.h"
#include "content/browser/appcache/appcache_host.h"
#include "content/browser/appcache/mock_appcache_service.h"
#include "content/public/test/browser_task_environment.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/public/mojom/appcache/appcache.mojom.h"
#include "third_party/blink/public/mojom/appcache/appcache_info.mojom.h"
#include "third_party/blink/public/mojom/devtools/console_message.mojom.h"

namespace content {

class AppCacheTest : public testing::Test {
  BrowserTaskEnvironment task_environment_;
};

TEST_F(AppCacheTest, CleanupUnusedCache) {
  MockAppCacheService service;
  auto cache = base::MakeRefCounted<AppCache>(service.storage(), 111);
  cache->set_complete(true);
  auto group = base::MakeRefCounted<AppCacheGroup>(
      service.storage(), GURL("http://blah/manifest"), 111);
  group->AddCache(cache.get());

  mojo::PendingRemote<blink::mojom::AppCacheFrontend> frontend1;
  ignore_result(frontend1.InitWithNewPipeAndPassReceiver());
  const int kMockProcessId1 = 1;
  const int kMockProcessId2 = 2;
  AppCacheHost host1(
      /*host_id=*/base::UnguessableToken::Create(), kMockProcessId1,
      /*render_frame_id=*/1,
      ChildProcessSecurityPolicyImpl::GetInstance()->CreateHandle(
          kMockProcessId1),
      std::move(frontend1), &service);

  mojo::PendingRemote<blink::mojom::AppCacheFrontend> frontend2;
  ignore_result(frontend2.InitWithNewPipeAndPassReceiver());
  AppCacheHost host2(
      /*host_id=*/base::UnguessableToken::Create(), kMockProcessId2,
      /*render_frame_id=*/2,
      ChildProcessSecurityPolicyImpl::GetInstance()->CreateHandle(
          kMockProcessId2),
      std::move(frontend2), &service);

  host1.AssociateCompleteCache(cache.get());
  host2.AssociateCompleteCache(cache.get());

  host1.AssociateNoCache(GURL());
  host2.AssociateNoCache(GURL());
}

TEST_F(AppCacheTest, AddModifyRemoveEntry) {
  MockAppCacheService service;
  auto cache = base::MakeRefCounted<AppCache>(service.storage(), 111);

  EXPECT_TRUE(cache->entries().empty());
  EXPECT_EQ(0L, cache->cache_size());
  EXPECT_EQ(0L, cache->padding_size());

  const GURL kFooUrl("http://foo.com");
  const int64_t kFooResponseId = 1;
  const int64_t kFooSize = 100;
  AppCacheEntry entry1(AppCacheEntry::MASTER, kFooResponseId,
                       /*response_size=*/kFooSize,
                       /*padding_size=*/0);
  cache->AddEntry(kFooUrl, entry1);
  EXPECT_EQ(entry1.types(), cache->GetEntry(kFooUrl)->types());
  EXPECT_EQ(1UL, cache->entries().size());
  EXPECT_EQ(kFooSize, cache->cache_size());
  EXPECT_EQ(0L, cache->padding_size());

  const GURL kBarUrl("http://bar.com");
  const int64_t kBarResponseId = 2;
  const int64_t kBarSize = 200;
  AppCacheEntry entry2(AppCacheEntry::FALLBACK, kBarResponseId,
                       /*response_size=*/kBarSize,
                       /*padding_size=*/2 * kBarSize);
  EXPECT_TRUE(cache->AddOrModifyEntry(kBarUrl, entry2));
  EXPECT_EQ(entry2.types(), cache->GetEntry(kBarUrl)->types());
  EXPECT_EQ(2UL, cache->entries().size());
  EXPECT_EQ(kFooSize + kBarSize, cache->cache_size());
  EXPECT_EQ(2 * kBarSize, cache->padding_size());

  // Expected to return false when an existing entry is modified.
  AppCacheEntry entry3(AppCacheEntry::EXPLICIT);
  EXPECT_FALSE(cache->AddOrModifyEntry(kFooUrl, entry3));
  EXPECT_EQ((AppCacheEntry::MASTER | AppCacheEntry::EXPLICIT),
            cache->GetEntry(kFooUrl)->types());
  // Only the type should be modified.
  EXPECT_EQ(kFooResponseId, cache->GetEntry(kFooUrl)->response_id());
  EXPECT_EQ(kFooSize, cache->GetEntry(kFooUrl)->response_size());
  EXPECT_EQ(kFooSize + kBarSize, cache->cache_size());
  EXPECT_EQ(2 * kBarSize, cache->padding_size());

  EXPECT_EQ(entry2.types(), cache->GetEntry(kBarUrl)->types());  // unchanged

  cache->RemoveEntry(kBarUrl);
  EXPECT_EQ(kFooSize, cache->cache_size());
  cache->RemoveEntry(kFooUrl);
  EXPECT_EQ(0L, cache->cache_size());
  EXPECT_EQ(0L, cache->padding_size());
  EXPECT_TRUE(cache->entries().empty());
}

TEST_F(AppCacheTest, InitializeWithManifest) {
  MockAppCacheService service;

  auto cache = base::MakeRefCounted<AppCache>(service.storage(), 1234);
  EXPECT_TRUE(cache->fallback_namespaces_.empty());
  EXPECT_TRUE(cache->online_safelist_namespaces_.empty());
  EXPECT_FALSE(cache->online_safelist_all_);

  AppCacheManifest manifest;
  manifest.explicit_urls.insert("http://one.com");
  manifest.explicit_urls.insert("http://two.com");
  manifest.fallback_namespaces.push_back(
      AppCacheNamespace(APPCACHE_FALLBACK_NAMESPACE, GURL("http://fb1.com"),
                        GURL("http://fbone.com")));
  manifest.online_safelist_namespaces.push_back(AppCacheNamespace(
      APPCACHE_NETWORK_NAMESPACE, GURL("http://w1.com"), GURL()));
  manifest.online_safelist_namespaces.push_back(AppCacheNamespace(
      APPCACHE_NETWORK_NAMESPACE, GURL("http://w2.com"), GURL()));
  manifest.online_safelist_all = true;

  cache->InitializeWithManifest(&manifest);
  const std::vector<AppCacheNamespace>& fallbacks =
      cache->fallback_namespaces_;
  size_t expected = 1;
  EXPECT_EQ(expected, fallbacks.size());
  EXPECT_EQ(GURL("http://fb1.com"), fallbacks[0].namespace_url);
  EXPECT_EQ(GURL("http://fbone.com"), fallbacks[0].target_url);
  const std::vector<AppCacheNamespace>& safelist =
      cache->online_safelist_namespaces_;
  expected = 2;
  EXPECT_EQ(expected, safelist.size());
  EXPECT_EQ(GURL("http://w1.com"), safelist[0].namespace_url);
  EXPECT_EQ(GURL("http://w2.com"), safelist[1].namespace_url);
  EXPECT_TRUE(cache->online_safelist_all_);

  // Ensure collections in manifest were taken over by the cache rather than
  // copied.
  EXPECT_TRUE(manifest.fallback_namespaces.empty());
  EXPECT_TRUE(manifest.online_safelist_namespaces.empty());
}

TEST_F(AppCacheTest, FindResponseForRequest) {
  MockAppCacheService service;

  const GURL kOnlineNamespaceUrl("http://blah/online_namespace");
  const GURL kFallbackEntryUrl1("http://blah/fallback_entry1");
  const GURL kFallbackNamespaceUrl1("http://blah/fallback_namespace/");
  const GURL kFallbackEntryUrl2("http://blah/fallback_entry2");
  const GURL kFallbackNamespaceUrl2("http://blah/fallback_namespace/longer");
  const GURL kManifestUrl("http://blah/manifest");
  const GURL kForeignExplicitEntryUrl("http://blah/foreign");
  const GURL kInOnlineNamespaceUrl(
      "http://blah/online_namespace/network");
  const GURL kExplicitInOnlineNamespaceUrl(
      "http://blah/online_namespace/explicit");
  const GURL kFallbackTestUrl1("http://blah/fallback_namespace/1");
  const GURL kFallbackTestUrl2("http://blah/fallback_namespace/longer2");
  const GURL kInterceptNamespace("http://blah/intercept_namespace/");
  const GURL kInterceptNamespaceWithinFallback(
      "http://blah/fallback_namespace/intercept_namespace/");
  const GURL kInterceptNamespaceEntry("http://blah/intercept_entry");
  const GURL kOnlineNamespaceWithinOtherNamespaces(
      "http://blah/fallback_namespace/intercept_namespace/1/online");

  const int64_t kFallbackResponseId1 = 1;
  const int64_t kFallbackResponseId2 = 2;
  const int64_t kManifestResponseId = 3;
  const int64_t kForeignExplicitResponseId = 4;
  const int64_t kExplicitInOnlineNamespaceResponseId = 5;
  const int64_t kInterceptResponseId = 6;

  AppCacheManifest manifest;
  manifest.online_safelist_namespaces.push_back(AppCacheNamespace(
      APPCACHE_NETWORK_NAMESPACE, kOnlineNamespaceUrl, GURL()));
  manifest.online_safelist_namespaces.push_back(
      AppCacheNamespace(APPCACHE_NETWORK_NAMESPACE,
                        kOnlineNamespaceWithinOtherNamespaces, GURL()));
  manifest.fallback_namespaces.push_back(AppCacheNamespace(
      APPCACHE_FALLBACK_NAMESPACE, kFallbackNamespaceUrl1, kFallbackEntryUrl1));
  manifest.fallback_namespaces.push_back(AppCacheNamespace(
      APPCACHE_FALLBACK_NAMESPACE, kFallbackNamespaceUrl2, kFallbackEntryUrl2));
  manifest.intercept_namespaces.push_back(
      AppCacheNamespace(APPCACHE_INTERCEPT_NAMESPACE, kInterceptNamespace,
                        kInterceptNamespaceEntry));
  manifest.intercept_namespaces.push_back(AppCacheNamespace(
      APPCACHE_INTERCEPT_NAMESPACE, kInterceptNamespaceWithinFallback,
      kInterceptNamespaceEntry));

  // Create a cache with some namespaces and entries.
  auto cache = base::MakeRefCounted<AppCache>(service.storage(), 1234);
  cache->InitializeWithManifest(&manifest);
  cache->AddEntry(
      kFallbackEntryUrl1,
      AppCacheEntry(AppCacheEntry::FALLBACK, kFallbackResponseId1));
  cache->AddEntry(
      kFallbackEntryUrl2,
      AppCacheEntry(AppCacheEntry::FALLBACK, kFallbackResponseId2));
  cache->AddEntry(
      kManifestUrl,
      AppCacheEntry(AppCacheEntry::MANIFEST, kManifestResponseId));
  cache->AddEntry(
      kForeignExplicitEntryUrl,
      AppCacheEntry(AppCacheEntry::EXPLICIT | AppCacheEntry::FOREIGN,
                    kForeignExplicitResponseId));
  cache->AddEntry(
      kExplicitInOnlineNamespaceUrl,
      AppCacheEntry(AppCacheEntry::EXPLICIT,
                    kExplicitInOnlineNamespaceResponseId));
  cache->AddEntry(
      kInterceptNamespaceEntry,
      AppCacheEntry(AppCacheEntry::INTERCEPT, kInterceptResponseId));
  cache->set_complete(true);

  // See that we get expected results from FindResponseForRequest

  bool found = false;
  AppCacheEntry entry;
  AppCacheEntry fallback_entry;
  GURL intercept_namespace;
  GURL fallback_namespace;
  bool network_namespace = false;

  found = cache->FindResponseForRequest(GURL("http://blah/miss"),
      &entry, &intercept_namespace,
      &fallback_entry, &fallback_namespace,
      &network_namespace);
  EXPECT_FALSE(found);

  found = cache->FindResponseForRequest(kForeignExplicitEntryUrl,
      &entry, &intercept_namespace,
      &fallback_entry, &fallback_namespace,
      &network_namespace);
  EXPECT_TRUE(found);
  EXPECT_EQ(kForeignExplicitResponseId, entry.response_id());
  EXPECT_FALSE(fallback_entry.has_response_id());
  EXPECT_FALSE(network_namespace);

  entry = AppCacheEntry();  // reset

  found = cache->FindResponseForRequest(kManifestUrl,
      &entry, &intercept_namespace,
      &fallback_entry, &fallback_namespace,
      &network_namespace);
  EXPECT_TRUE(found);
  EXPECT_EQ(kManifestResponseId, entry.response_id());
  EXPECT_FALSE(fallback_entry.has_response_id());
  EXPECT_FALSE(network_namespace);

  entry = AppCacheEntry();  // reset

  found = cache->FindResponseForRequest(kInOnlineNamespaceUrl,
      &entry, &intercept_namespace,
      &fallback_entry, &fallback_namespace,
      &network_namespace);
  EXPECT_TRUE(found);
  EXPECT_FALSE(entry.has_response_id());
  EXPECT_FALSE(fallback_entry.has_response_id());
  EXPECT_TRUE(network_namespace);

  network_namespace = false;  // reset

  found = cache->FindResponseForRequest(kExplicitInOnlineNamespaceUrl,
      &entry, &intercept_namespace,
      &fallback_entry, &fallback_namespace,
      &network_namespace);
  EXPECT_TRUE(found);
  EXPECT_EQ(kExplicitInOnlineNamespaceResponseId, entry.response_id());
  EXPECT_FALSE(fallback_entry.has_response_id());
  EXPECT_FALSE(network_namespace);

  entry = AppCacheEntry();  // reset

  found = cache->FindResponseForRequest(kFallbackTestUrl1,
      &entry, &intercept_namespace,
      &fallback_entry, &fallback_namespace,
      &network_namespace);
  EXPECT_TRUE(found);
  EXPECT_FALSE(entry.has_response_id());
  EXPECT_EQ(kFallbackResponseId1, fallback_entry.response_id());
  EXPECT_EQ(kFallbackEntryUrl1,
            cache->GetFallbackEntryUrl(fallback_namespace));
  EXPECT_FALSE(network_namespace);

  fallback_entry = AppCacheEntry();  // reset

  found = cache->FindResponseForRequest(kFallbackTestUrl2,
      &entry, &intercept_namespace,
      &fallback_entry, &fallback_namespace,
      &network_namespace);
  EXPECT_TRUE(found);
  EXPECT_FALSE(entry.has_response_id());
  EXPECT_EQ(kFallbackResponseId2, fallback_entry.response_id());
  EXPECT_EQ(kFallbackEntryUrl2,
            cache->GetFallbackEntryUrl(fallback_namespace));
  EXPECT_FALSE(network_namespace);

  fallback_entry = AppCacheEntry();  // reset

  found = cache->FindResponseForRequest(kOnlineNamespaceWithinOtherNamespaces,
      &entry, &intercept_namespace,
      &fallback_entry, &fallback_namespace,
      &network_namespace);
  EXPECT_TRUE(found);
  EXPECT_FALSE(entry.has_response_id());
  EXPECT_FALSE(fallback_entry.has_response_id());
  EXPECT_TRUE(network_namespace);

  fallback_entry = AppCacheEntry();  // reset

  found = cache->FindResponseForRequest(
      kOnlineNamespaceWithinOtherNamespaces.Resolve("online_resource"),
      &entry, &intercept_namespace,
      &fallback_entry, &fallback_namespace,
      &network_namespace);
  EXPECT_TRUE(found);
  EXPECT_FALSE(entry.has_response_id());
  EXPECT_FALSE(fallback_entry.has_response_id());
  EXPECT_TRUE(network_namespace);

  fallback_namespace = GURL();

  found = cache->FindResponseForRequest(
      kInterceptNamespace.Resolve("intercept_me"),
      &entry, &intercept_namespace,
      &fallback_entry, &fallback_namespace,
      &network_namespace);
  EXPECT_TRUE(found);
  EXPECT_EQ(kInterceptResponseId, entry.response_id());
  EXPECT_EQ(kInterceptNamespaceEntry,
            cache->GetInterceptEntryUrl(intercept_namespace));
  EXPECT_FALSE(fallback_entry.has_response_id());
  EXPECT_TRUE(fallback_namespace.is_empty());
  EXPECT_FALSE(network_namespace);

  entry = AppCacheEntry();  // reset

  found = cache->FindResponseForRequest(
      kInterceptNamespaceWithinFallback.Resolve("intercept_me"),
      &entry, &intercept_namespace,
      &fallback_entry, &fallback_namespace,
      &network_namespace);
  EXPECT_TRUE(found);
  EXPECT_EQ(kInterceptResponseId, entry.response_id());
  EXPECT_EQ(kInterceptNamespaceEntry,
            cache->GetInterceptEntryUrl(intercept_namespace));
  EXPECT_FALSE(fallback_entry.has_response_id());
  EXPECT_TRUE(fallback_namespace.is_empty());
  EXPECT_FALSE(network_namespace);
}

TEST_F(AppCacheTest, ToFromDatabaseRecords) {
  // Setup a cache with some entries.
  const int64_t kCacheId = 1234;
  const int64_t kGroupId = 4321;
  const GURL kManifestUrl("http://foo.com/manifest");
  const std::string kManifestScope = kManifestUrl.GetWithoutFilename().path();
  const GURL kInterceptUrl("http://foo.com/intercept.html");
  const GURL kFallbackUrl("http://foo.com/fallback.html");
  const GURL kPatternSafelistUrl("http://foo.com/patternsafelist*");
  const GURL kSafelistUrl("http://foo.com/safelist");
  const std::string kData(
      "CACHE MANIFEST\r"
      "CHROMIUM-INTERCEPT:\r"
      "/intercept return /intercept.html\r"
      "FALLBACK:\r"
      "/ /fallback.html\r"
      "NETWORK:\r"
      "/patternsafelist* isPattern\r"
      "/safelist\r"
      "*\r");

  MockAppCacheService service;
  auto cache = base::MakeRefCounted<AppCache>(service.storage(), kCacheId);
  auto group = base::MakeRefCounted<AppCacheGroup>(service.storage(),
                                                   kManifestUrl, kGroupId);
  AppCacheManifest manifest;
  EXPECT_TRUE(
      ParseManifest(kManifestUrl, kManifestScope, kData.c_str(), kData.length(),
                    PARSE_MANIFEST_ALLOWING_DANGEROUS_FEATURES, manifest));
  cache->InitializeWithManifest(&manifest);
  EXPECT_EQ(APPCACHE_NETWORK_NAMESPACE,
            cache->online_safelist_namespaces_[0].type);
  EXPECT_EQ(kPatternSafelistUrl,
            cache->online_safelist_namespaces_[0].namespace_url);
  EXPECT_EQ(APPCACHE_NETWORK_NAMESPACE,
            cache->online_safelist_namespaces_[1].type);
  EXPECT_EQ(kSafelistUrl, cache->online_safelist_namespaces_[1].namespace_url);
  cache->AddEntry(kManifestUrl, AppCacheEntry(AppCacheEntry::MANIFEST,
                                              /*response_id=*/1,
                                              /*response_size=*/1000,
                                              /*padding_size=*/0));
  cache->AddEntry(kInterceptUrl, AppCacheEntry(AppCacheEntry::INTERCEPT,
                                               /*response_id=*/3,
                                               /*response_size=*/10000,
                                               /*padding_size=*/10));
  cache->AddEntry(kFallbackUrl, AppCacheEntry(AppCacheEntry::FALLBACK,
                                              /*response_id=*/2,
                                              /*response_size=*/100000,
                                              /*padding_size=*/100));

  // Get it to produce database records and verify them.
  AppCacheDatabase::CacheRecord cache_record;
  std::vector<AppCacheDatabase::EntryRecord> entries;
  std::vector<AppCacheDatabase::NamespaceRecord> intercepts;
  std::vector<AppCacheDatabase::NamespaceRecord> fallbacks;
  std::vector<AppCacheDatabase::OnlineSafeListRecord> safelists;
  cache->ToDatabaseRecords(group.get(), &cache_record, &entries, &intercepts,
                           &fallbacks, &safelists);
  EXPECT_EQ(kCacheId, cache_record.cache_id);
  EXPECT_EQ(kGroupId, cache_record.group_id);
  EXPECT_TRUE(cache_record.online_wildcard);
  EXPECT_EQ(1000 + 10000 + 100000, cache_record.cache_size);
  EXPECT_EQ(0 + 10 + 100, cache_record.padding_size);
  EXPECT_EQ(3u, entries.size());
  EXPECT_EQ(1u, intercepts.size());
  EXPECT_EQ(1u, fallbacks.size());
  EXPECT_EQ(2u, safelists.size());
  cache = nullptr;

  // Create a new AppCache and populate it with those records and verify.
  cache = base::MakeRefCounted<AppCache>(service.storage(), kCacheId);
  cache->InitializeWithDatabaseRecords(cache_record, entries, intercepts,
                                       fallbacks, safelists);
  EXPECT_TRUE(cache->online_safelist_all_);
  EXPECT_EQ(3u, cache->entries().size());
  EXPECT_TRUE(cache->GetEntry(kManifestUrl));
  EXPECT_TRUE(cache->GetEntry(kInterceptUrl));
  EXPECT_TRUE(cache->GetEntry(kFallbackUrl));
  EXPECT_EQ(kInterceptUrl,
            cache->GetInterceptEntryUrl(GURL("http://foo.com/intercept")));
  EXPECT_EQ(kFallbackUrl,
            cache->GetFallbackEntryUrl(GURL("http://foo.com/")));
  EXPECT_EQ(1000 + 10000 + 100000, cache->cache_size());
  EXPECT_EQ(0 + 10 + 100, cache->padding_size());
  EXPECT_EQ(APPCACHE_NETWORK_NAMESPACE,
            cache->online_safelist_namespaces_[0].type);
  EXPECT_EQ(kPatternSafelistUrl,
            cache->online_safelist_namespaces_[0].namespace_url);
  EXPECT_EQ(APPCACHE_NETWORK_NAMESPACE,
            cache->online_safelist_namespaces_[1].type);
  EXPECT_EQ(kSafelistUrl, cache->online_safelist_namespaces_[1].namespace_url);
}

TEST_F(AppCacheTest, IsNamespaceMatch) {
  AppCacheNamespace prefix;
  prefix.namespace_url = GURL("http://foo.com/prefix");
  EXPECT_TRUE(prefix.IsMatch(GURL("http://foo.com/prefix")));
  EXPECT_TRUE(prefix.IsMatch(
      GURL("http://foo.com/prefix_and_anothing_goes")));
  EXPECT_TRUE(prefix.IsMatch(GURL("http://foo.com/prefix/this_too")));
  EXPECT_TRUE(prefix.IsMatch(GURL("http://foo.com/prefix/")));
  EXPECT_FALSE(prefix.IsMatch(
      GURL("http://foo.com/nope")));

  // The following tests ensure that wildcards are not supported. Chrome used
  // to support an `isPattern` extension enabling wildcard matching.
  AppCacheNamespace bar_star;
  bar_star.namespace_url = GURL("http://foo.com/bar/*");
  EXPECT_FALSE(bar_star.IsMatch(GURL("http://foo.com/bar/")));
  EXPECT_FALSE(bar_star.IsMatch(GURL("http://foo.com/bar/should_not_match")));
  EXPECT_FALSE(
      bar_star.IsMatch(GURL("http://foo.com/not_bar/should_not_match")));

  AppCacheNamespace star_bar_star;
  star_bar_star.namespace_url = GURL("http://foo.com/*/bar/*");
  EXPECT_FALSE(
      star_bar_star.IsMatch(GURL("http://foo.com/any/bar/should_not_match")));
  EXPECT_FALSE(star_bar_star.IsMatch(GURL("http://foo.com/any/bar/")));
  EXPECT_FALSE(star_bar_star.IsMatch(
      GURL("http://foo.com/any/not_bar/no_match")));

  AppCacheNamespace query_star_edit;
  query_star_edit.namespace_url = GURL("http://foo.com/query?id=*&verb=edit*");
  EXPECT_FALSE(query_star_edit.IsMatch(
      GURL("http://foo.com/query?id=1234&verb=edit&option=blue")));
  EXPECT_FALSE(query_star_edit.IsMatch(
      GURL("http://foo.com/query?id=12345&option=blue&verb=edit")));
  EXPECT_FALSE(query_star_edit.IsMatch(
      GURL("http://foo.com/query?id=12345&option=blue&verb=print")));
  EXPECT_FALSE(query_star_edit.IsMatch(
      GURL("http://foo.com/query?id=123&verb=print&verb=edit")));
}

TEST_F(AppCacheTest, CheckValidManifestScopeTests) {
  EXPECT_TRUE(
      AppCache::CheckValidManifestScope(GURL("http://mockhost/manifest"), "/"));
  EXPECT_TRUE(AppCache::CheckValidManifestScope(
      GURL("http://mockhost/manifest"), "/foo/"));

  // Check that a relative scope is allowed.
  EXPECT_TRUE(AppCache::CheckValidManifestScope(
      GURL("http://mockhost/manifest"), "bar/"));
  EXPECT_TRUE(AppCache::CheckValidManifestScope(
      GURL("http://mockhost/manifest"), "../"));
  EXPECT_TRUE(AppCache::CheckValidManifestScope(
      GURL("http://mockhost/manifest"), "../foo/"));
  // Relative past the top of the path should be equal to both "../" and "/"
  // (and hence valid).
  EXPECT_TRUE(AppCache::CheckValidManifestScope(
      GURL("http://mockhost/manifest"), "../../"));

  // A scope must be non-empty.
  EXPECT_FALSE(
      AppCache::CheckValidManifestScope(GURL("http://mockhost/manifest"), ""));

  // Check that scope must end in a slash.
  EXPECT_FALSE(AppCache::CheckValidManifestScope(
      GURL("http://mockhost/manifest"), "/foo"));
  EXPECT_FALSE(AppCache::CheckValidManifestScope(
      GURL("http://mockhost/manifest"), "bar"));
  EXPECT_TRUE(AppCache::CheckValidManifestScope(
      GURL("http://mockhost/manifest"), ".."));

  // Test invalid scopes.
  EXPECT_FALSE(
      AppCache::CheckValidManifestScope(GURL("http://mockhost/manifest"), " "));
  EXPECT_FALSE(AppCache::CheckValidManifestScope(
      GURL("http://mockhost/manifest"), "\t"));
  EXPECT_FALSE(AppCache::CheckValidManifestScope(
      GURL("http://mockhost/manifest"), "\n"));
  EXPECT_FALSE(AppCache::CheckValidManifestScope(
      GURL("http://mockhost/manifest"), "?foo"));
  EXPECT_FALSE(AppCache::CheckValidManifestScope(
      GURL("http://mockhost/manifest"), "/?foo"));
  EXPECT_FALSE(AppCache::CheckValidManifestScope(
      GURL("http://mockhost/manifest"), "../?foo"));
  EXPECT_FALSE(AppCache::CheckValidManifestScope(
      GURL("http://mockhost/manifest"), "#foo"));
  EXPECT_FALSE(AppCache::CheckValidManifestScope(
      GURL("http://mockhost/manifest"), "/#foo"));
  EXPECT_FALSE(AppCache::CheckValidManifestScope(
      GURL("http://mockhost/manifest"), "../#foo"));
}

TEST_F(AppCacheTest, GetManifestScopeTests) {
  // Test the defaults.
  EXPECT_EQ(AppCache::GetManifestScope(GURL("http://mockhost/manifest"), ""),
            "/");
  EXPECT_EQ(
      AppCache::GetManifestScope(GURL("http://mockhost/foo/manifest"), ""),
      "/foo/");

  // Test the overrides.
  EXPECT_EQ(AppCache::GetManifestScope(GURL("http://mockhost/manifest"), "/"),
            "/");
  EXPECT_EQ(
      AppCache::GetManifestScope(GURL("http://mockhost/foo/manifest"), "/"),
      "/");
  EXPECT_EQ(
      AppCache::GetManifestScope(GURL("http://mockhost/foo/manifest"), "../"),
      "../");

  // Relative past the top of the path should be equal to both "../" and "/"
  // (and hence valid), so we keep it as it was passed to us.
  EXPECT_EQ(
      AppCache::GetManifestScope(GURL("http://mockhost/manifest"), "../../"),
      "../../");
}

}  // namespace content