Implement ComplexFeature to support permission features with multiple rules.

chrome/common/extensions/features/simple_feature_provider_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 "chrome/common/extensions/features/simple_feature_provider.h"
 
+#include "chrome/common/extensions/value_builder.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+using chrome::VersionInfo;
+using extensions::DictionaryBuilder;
 using extensions::Extension;
 using extensions::Feature;
+using extensions::ListBuilder;
+using extensions::SimpleFeature;
 using extensions::SimpleFeatureProvider;
 
 TEST(SimpleFeatureProvider, ManifestFeatures) {
   SimpleFeatureProvider* provider =
       SimpleFeatureProvider::GetManifestFeatures();
-  Feature* feature = provider->GetFeature("description");
+  SimpleFeature* feature =
+      static_cast<SimpleFeature*>(provider->GetFeature("description"));
   ASSERT_TRUE(feature);
   EXPECT_EQ(5u, feature->extension_types()->size());
   EXPECT_EQ(1u, feature->extension_types()->count(Extension::TYPE_EXTENSION));
   EXPECT_EQ(1u,
       feature->extension_types()->count(Extension::TYPE_LEGACY_PACKAGED_APP));
   EXPECT_EQ(1u,
             feature->extension_types()->count(Extension::TYPE_PLATFORM_APP));
   EXPECT_EQ(1u, feature->extension_types()->count(Extension::TYPE_HOSTED_APP));
   EXPECT_EQ(1u, feature->extension_types()->count(Extension::TYPE_THEME));
 
   DictionaryValue manifest;
   manifest.SetString("name", "test extension");
   manifest.SetString("version", "1");
   manifest.SetString("description", "hello there");
 
   std::string error;
   scoped_refptr<const Extension> extension(Extension::Create(
       FilePath(), Extension::INTERNAL, manifest, Extension::NO_FLAGS,
       &error));
 
   ASSERT_TRUE(extension.get());
   EXPECT_EQ(Feature::IS_AVAILABLE, feature->IsAvailableToContext(
       extension.get(), Feature::UNSPECIFIED_CONTEXT).result());
 
-  feature = provider->GetFeature("theme");
+  feature =
+    static_cast<SimpleFeature*>(provider->GetFeature("theme"));
   ASSERT_TRUE(feature);
   EXPECT_EQ(Feature::INVALID_TYPE, feature->IsAvailableToContext(
       extension.get(), Feature::UNSPECIFIED_CONTEXT).result());
 
-  feature = provider->GetFeature("devtools_page");
+  feature =
+    static_cast<SimpleFeature*>(provider->GetFeature("devtools_page"));
   ASSERT_TRUE(feature);
   EXPECT_EQ(Feature::NOT_PRESENT, feature->IsAvailableToContext(
       extension.get(), Feature::UNSPECIFIED_CONTEXT).result());
 }
 
 TEST(SimpleFeatureProvider, PermissionFeatures) {
   SimpleFeatureProvider* provider =
       SimpleFeatureProvider::GetPermissionFeatures();
-  Feature* feature = provider->GetFeature("contextMenus");
+  SimpleFeature* feature =
+      static_cast<SimpleFeature*>(provider->GetFeature("contextMenus"));
   ASSERT_TRUE(feature);
   EXPECT_EQ(3u, feature->extension_types()->size());
   EXPECT_EQ(1u, feature->extension_types()->count(Extension::TYPE_EXTENSION));
   EXPECT_EQ(1u,
       feature->extension_types()->count(Extension::TYPE_LEGACY_PACKAGED_APP));
   EXPECT_EQ(1u,
             feature->extension_types()->count(Extension::TYPE_PLATFORM_APP));
 
   DictionaryValue manifest;
   manifest.SetString("name", "test extension");
   manifest.SetString("version", "1");
   ListValue* permissions = new ListValue();
   manifest.Set("permissions", permissions);
   permissions->Append(Value::CreateStringValue("contextMenus"));
 
   std::string error;
   scoped_refptr<const Extension> extension(Extension::Create(
       FilePath(), Extension::INTERNAL, manifest, Extension::NO_FLAGS,
       &error));
 
   ASSERT_TRUE(extension.get());
   EXPECT_EQ(Feature::IS_AVAILABLE, feature->IsAvailableToContext(
       extension.get(), Feature::UNSPECIFIED_CONTEXT).result());
 
-  feature = provider->GetFeature("chromePrivate");
+  feature =
+    static_cast<SimpleFeature*>(provider->GetFeature("chromePrivate"));
   ASSERT_TRUE(feature);
   EXPECT_EQ(Feature::NOT_FOUND_IN_WHITELIST, feature->IsAvailableToContext(
       extension.get(), Feature::UNSPECIFIED_CONTEXT).result());
 
-  feature = provider->GetFeature("clipboardWrite");
+  feature =
+    static_cast<SimpleFeature*>(provider->GetFeature("clipboardWrite"));
   ASSERT_TRUE(feature);
   EXPECT_EQ(Feature::NOT_PRESENT, feature->IsAvailableToContext(
       extension.get(), Feature::UNSPECIFIED_CONTEXT).result());
 }
 
 TEST(SimpleFeatureProvider, Validation) {
   scoped_ptr<DictionaryValue> value(new DictionaryValue());
 
   DictionaryValue* feature1 = new DictionaryValue();
   value->Set("feature1", feature1);
 
   DictionaryValue* feature2 = new DictionaryValue();
   ListValue* extension_types = new ListValue();
   extension_types->Append(Value::CreateStringValue("extension"));
   feature2->Set("extension_types", extension_types);
   ListValue* contexts = new ListValue();
   contexts->Append(Value::CreateStringValue("blessed_extension"));
   feature2->Set("contexts", contexts);
   value->Set("feature2", feature2);
 
   scoped_ptr<SimpleFeatureProvider> provider(
-      new SimpleFeatureProvider(value.get(), NULL));
+      new SimpleFeatureProvider(*value, NULL));
 
   // feature1 won't validate because it lacks an extension type.
   EXPECT_FALSE(provider->GetFeature("feature1"));
 
   // If we add one, it works.
   feature1->Set("extension_types", extension_types->DeepCopy());
-  provider.reset(new SimpleFeatureProvider(value.get(), NULL));
+  provider.reset(new SimpleFeatureProvider(*value, NULL));
   EXPECT_TRUE(provider->GetFeature("feature1"));
 
   // feature2 won't validate because of the presence of "contexts".
   EXPECT_FALSE(provider->GetFeature("feature2"));
 
   // If we remove it, it works.
   feature2->Remove("contexts", NULL);
-  provider.reset(new SimpleFeatureProvider(value.get(), NULL));
+  provider.reset(new SimpleFeatureProvider(*value, NULL));
   EXPECT_TRUE(provider->GetFeature("feature2"));
 }
+
+TEST(SimpleFeatureProvider, ComplexFeatures) {
+  scoped_ptr<DictionaryValue> rule(
+      DictionaryBuilder()
+      .Set("feature1",
+           ListBuilder().Append(DictionaryBuilder()
+                                .Set("channel", "beta")
+                                .Set("extension_types",
+                                     ListBuilder().Append("extension")))
+                        .Append(DictionaryBuilder()
+                                .Set("channel", "beta")
+                                .Set("extension_types",
+                                     ListBuilder().Append("packaged_app"))))
+      .Build());
+
+  scoped_ptr<SimpleFeatureProvider> provider(
+      new SimpleFeatureProvider(*rule, NULL));
+
+  Feature *feature = provider->GetFeature("feature1");
+  EXPECT_TRUE(feature);
+
+  // Make sure both rules are applied correctly.
+  {
+    Feature::ScopedCurrentChannel current_channel(VersionInfo::CHANNEL_BETA);
+    EXPECT_EQ(Feature::IS_AVAILABLE, feature->IsAvailableToManifest(
+        "1",
+        Extension::TYPE_EXTENSION,
+        Feature::UNSPECIFIED_LOCATION,
+        Feature::UNSPECIFIED_PLATFORM).result());
+    EXPECT_EQ(Feature::IS_AVAILABLE, feature->IsAvailableToManifest(
+        "2",
+        Extension::TYPE_LEGACY_PACKAGED_APP,
+        Feature::UNSPECIFIED_LOCATION,
+        Feature::UNSPECIFIED_PLATFORM).result());
+  }
+  {
+    Feature::ScopedCurrentChannel current_channel(VersionInfo::CHANNEL_STABLE);
+    EXPECT_NE(Feature::IS_AVAILABLE, feature->IsAvailableToManifest(
+        "1",
+        Extension::TYPE_EXTENSION,
+        Feature::UNSPECIFIED_LOCATION,
+        Feature::UNSPECIFIED_PLATFORM).result());
+    EXPECT_NE(Feature::IS_AVAILABLE, feature->IsAvailableToManifest(
+        "2",
+        Extension::TYPE_LEGACY_PACKAGED_APP,
+        Feature::UNSPECIFIED_LOCATION,
+        Feature::UNSPECIFIED_PLATFORM).result());
+  }
+}