[Extensions Bindings] Remove APIBindingsSystemTestWithRealAPI

extensions/renderer/api_bindings_system_unittest.cc

Index: extensions/renderer/api_bindings_system_unittest.cc
diff --git a/extensions/renderer/api_bindings_system_unittest.cc b/extensions/renderer/api_bindings_system_unittest.cc
index 3e43733ffc869cf75438b59ea3640be03c7193f8..83caeb2806ae3921c2edc9448276bda3d4975b82 100644
--- a/extensions/renderer/api_bindings_system_unittest.cc
+++ b/extensions/renderer/api_bindings_system_unittest.cc
@@ -35,6 +35,10 @@ const char kAlphaAPISpec[] =
     "      'prop1': {'type': 'string'},"
     "      'prop2': {'type': 'integer', 'optional': true}"
     "    }"
+    "  }, {"
+    "    'id': 'alpha.enumRef',"
+    "    'type': 'string',"
+    "    'enum': ['cat', 'dog']"
     "  }],"
     "  'functions': [{"
     "    'name': 'functionWithCallback',"
@@ -54,6 +58,9 @@ const char kAlphaAPISpec[] =
     "      'name': 'callback',"
     "      'type': 'function'"
     "    }]"
+    "  }, {"
+    "    'name': 'functionWithEnum',"
+    "    'parameters': [{'name': 'e', '$ref': 'alpha.enumRef'}]"
     "  }],"
     "  'events': [{"
     "    'name': 'alphaEvent'"
@@ -87,12 +94,14 @@ bool AllowAllAPIs(const std::string& name) {
 
 // The base class to test the APIBindingsSystem. This allows subclasses to
 // retrieve API schemas differently.
-class APIBindingsSystemTestBase : public APIBindingTest {
+class APIBindingsSystemTest : public APIBindingTest {
  public:
   // Returns the DictionaryValue representing the schema with the given API
   // name.
-  virtual const base::DictionaryValue& GetAPISchema(
-      const std::string& api_name) = 0;
+  const base::DictionaryValue& GetAPISchema(const std::string& api_name) {
+    EXPECT_TRUE(base::ContainsKey(api_schemas_, api_name));
+    return *api_schemas_[api_name];
+  }
 
   // Stores the request in |last_request_|.
   void OnAPIRequest(std::unique_ptr<APIRequestHandler::Request> request,
@@ -106,17 +115,36 @@ class APIBindingsSystemTestBase : public APIBindingTest {
                                v8::Local<v8::Context> context) {}
 
  protected:
-  APIBindingsSystemTestBase() {}
+  APIBindingsSystemTest() {}
   void SetUp() override {
     APIBindingTest::SetUp();
+
+    // Create the fake API schemas.
+    {
+      struct APIData {
+        const char* name;
+        const char* spec;
+      } api_data[] = {
+          {kAlphaAPIName, kAlphaAPISpec},
+          {kBetaAPIName, kBetaAPISpec},
+          {kGammaAPIName, kGammaAPISpec},
+      };
+      for (const auto& api : api_data) {
+        std::unique_ptr<base::DictionaryValue> api_schema =
+            DictionaryValueFromString(api.spec);
+        ASSERT_TRUE(api_schema);
+        api_schemas_[api.name] = std::move(api_schema);
+      }
+    }
+
     bindings_system_ = base::MakeUnique<APIBindingsSystem>(
         base::Bind(&RunFunctionOnGlobalAndIgnoreResult),
         base::Bind(&RunFunctionOnGlobalAndReturnHandle),
-        base::Bind(&APIBindingsSystemTestBase::GetAPISchema,
+        base::Bind(&APIBindingsSystemTest::GetAPISchema,
                    base::Unretained(this)),
-        base::Bind(&APIBindingsSystemTestBase::OnAPIRequest,
+        base::Bind(&APIBindingsSystemTest::OnAPIRequest,
                    base::Unretained(this)),
-        base::Bind(&APIBindingsSystemTestBase::OnEventListenersChanged,
+        base::Bind(&APIBindingsSystemTest::OnEventListenersChanged,
                    base::Unretained(this)),
         APILastError(APILastError::GetParent()));
   }
@@ -135,7 +163,29 @@ class APIBindingsSystemTestBase : public APIBindingTest {
   // Checks that |last_request_| exists and was provided with the
   // |expected_name| and |expected_arguments|.
   void ValidateLastRequest(const std::string& expected_name,
-                           const std::string& expected_arguments);
+                           const std::string& expected_arguments) {
+    ASSERT_TRUE(last_request());
+    // Note that even if no arguments are provided by the API call, we should
+    // have an empty list.
+    ASSERT_TRUE(last_request()->arguments);
+    EXPECT_EQ(expected_name, last_request()->method_name);
+    EXPECT_EQ(ReplaceSingleQuotes(expected_arguments),
+              ValueToString(*last_request()->arguments));
+  }
+
+  void CallFunctionOnObject(v8::Local<v8::Context> context,
+                            v8::Local<v8::Object> object,
+                            const std::string& script_source) {
+    std::string wrapped_script_source =
+        base::StringPrintf("(function(obj) { %s })", script_source.c_str());
+
+    v8::Local<v8::Function> func =
+        FunctionFromString(context, wrapped_script_source);
+    ASSERT_FALSE(func.IsEmpty());
+
+    v8::Local<v8::Value> argv[] = {object};
+    RunFunction(func, context, 1, argv);
+  }
 
   const APIRequestHandler::Request* last_request() const {
     return last_request_.get();
@@ -144,6 +194,9 @@ class APIBindingsSystemTestBase : public APIBindingTest {
   APIBindingsSystem* bindings_system() { return bindings_system_.get(); }
 
  private:
+  // The API schemas for the fake APIs.
+  std::map<std::string, std::unique_ptr<base::DictionaryValue>> api_schemas_;
+
   // The APIBindingsSystem associated with the test. Safe to use across multiple
   // contexts.
   std::unique_ptr<APIBindingsSystem> bindings_system_;
@@ -152,82 +205,9 @@ class APIBindingsSystemTestBase : public APIBindingTest {
   // there is none.
   std::unique_ptr<APIRequestHandler::Request> last_request_;
 
-  DISALLOW_COPY_AND_ASSIGN(APIBindingsSystemTestBase);
-};
-
-void APIBindingsSystemTestBase::ValidateLastRequest(
-    const std::string& expected_name,
-    const std::string& expected_arguments) {
-  ASSERT_TRUE(last_request());
-  // Note that even if no arguments are provided by the API call, we should have
-  // an empty list.
-  ASSERT_TRUE(last_request()->arguments);
-  EXPECT_EQ(expected_name, last_request()->method_name);
-  EXPECT_EQ(ReplaceSingleQuotes(expected_arguments),
-            ValueToString(*last_request()->arguments));
-}
-
-// An implementation that works with fake/supplied APIs, for easy testability.
-class APIBindingsSystemTest : public APIBindingsSystemTestBase {
- protected:
-  APIBindingsSystemTest() {}
-
-  // Calls a function constructed from |script_source| on the given |object|.
-  void CallFunctionOnObject(v8::Local<v8::Context> context,
-                            v8::Local<v8::Object> object,
-                            const std::string& script_source);
-
- private:
-  const base::DictionaryValue& GetAPISchema(
-      const std::string& api_name) override {
-    EXPECT_TRUE(base::ContainsKey(api_schemas_, api_name));
-    return *api_schemas_[api_name];
-  }
-  void SetUp() override;
-
-  // The API schemas for the fake APIs.
-  std::map<std::string, std::unique_ptr<base::DictionaryValue>> api_schemas_;
-
   DISALLOW_COPY_AND_ASSIGN(APIBindingsSystemTest);
 };
 
-void APIBindingsSystemTest::CallFunctionOnObject(
-    v8::Local<v8::Context> context,
-    v8::Local<v8::Object> object,
-    const std::string& script_source) {
-  std::string wrapped_script_source =
-      base::StringPrintf("(function(obj) { %s })", script_source.c_str());
-
-  v8::Local<v8::Function> func =
-      FunctionFromString(context, wrapped_script_source);
-  ASSERT_FALSE(func.IsEmpty());
-
-  v8::Local<v8::Value> argv[] = {object};
-  RunFunction(func, context, 1, argv);
-}
-
-void APIBindingsSystemTest::SetUp() {
-  // Create the fake API schemas.
-  {
-    struct APIData {
-      const char* name;
-      const char* spec;
-    } api_data[] = {
-        {kAlphaAPIName, kAlphaAPISpec},
-        {kBetaAPIName, kBetaAPISpec},
-        {kGammaAPIName, kGammaAPISpec},
-    };
-    for (const auto& api : api_data) {
-      std::unique_ptr<base::DictionaryValue> api_schema =
-          DictionaryValueFromString(api.spec);
-      ASSERT_TRUE(api_schema);
-      api_schemas_[api.name] = std::move(api_schema);
-    }
-  }
-
-  APIBindingsSystemTestBase::SetUp();
-}
-
 // Tests API object initialization, calling a method on the supplied APIs, and
 // triggering the callback for the request.
 TEST_F(APIBindingsSystemTest, TestInitializationAndCallbacks) {
@@ -285,6 +265,18 @@ TEST_F(APIBindingsSystemTest, TestInitializationAndCallbacks) {
   }
 
   {
+    // Test an invalid invocation -> throwing error.
+    const char kTestCall[] =
+        "(function(obj) { obj.functionWithEnum('mouse') })";
+    v8::Local<v8::Function> function = FunctionFromString(context, kTestCall);
+    v8::Local<v8::Value> args[] = {alpha_api};
+    RunFunctionAndExpectError(function, context, arraysize(args), args,
+                              "Uncaught TypeError: Invalid invocation");
+    EXPECT_FALSE(last_request());
+    reset_last_request();  // Just to not pollute future results.
+  }
+
+  {
     // Test an event registration -> event occurrence.
     const char kTestCall[] =
         "obj.alphaEvent.addListener(function() {\n"
@@ -445,153 +437,4 @@ TEST_F(APIBindingsSystemTest, CrossAPIReferences) {
   }
 }
 
-// An implementation using real API schemas.
-class APIBindingsSystemTestWithRealAPI : public APIBindingsSystemTestBase {
- protected:
-  APIBindingsSystemTestWithRealAPI() {}
-
-  // Executes the given |script_source| in |context|, expecting no exceptions.
-  void ExecuteScript(v8::Local<v8::Context> context,
-                     const std::string& script_source);
-
-  // Executes the given |script_source| in |context| and compares a caught
-  // error to |expected_error|.
-  void ExecuteScriptAndExpectError(v8::Local<v8::Context> context,
-                                   const std::string& script_source,
-                                   const std::string& expected_error);
-
- private:
-  const base::DictionaryValue& GetAPISchema(
-      const std::string& api_name) override {
-    const base::DictionaryValue* schema =
-        ExtensionAPI::GetSharedInstance()->GetSchema(api_name);
-    EXPECT_TRUE(schema);
-    return *schema;
-  }
-
-  DISALLOW_COPY_AND_ASSIGN(APIBindingsSystemTestWithRealAPI);
-};
-
-void APIBindingsSystemTestWithRealAPI::ExecuteScript(
-    v8::Local<v8::Context> context,
-    const std::string& script_source) {
-  v8::TryCatch try_catch(isolate());
-  // V8ValueFromScriptSource runs the source and returns the result; here, we
-  // only care about running the source.
-  V8ValueFromScriptSource(context, script_source);
-  EXPECT_FALSE(try_catch.HasCaught())
-      << gin::V8ToString(try_catch.Message()->Get());
-}
-
-void APIBindingsSystemTestWithRealAPI::ExecuteScriptAndExpectError(
-    v8::Local<v8::Context> context,
-    const std::string& script_source,
-    const std::string& expected_error) {
-  v8::TryCatch try_catch(isolate());
-  V8ValueFromScriptSource(context, script_source);
-  ASSERT_TRUE(try_catch.HasCaught()) << script_source;
-  EXPECT_EQ(expected_error, gin::V8ToString(try_catch.Message()->Get()));
-}
-
-// The following test demonstrates how APIBindingsSystem can be used with "real"
-// Extension APIs; that is, using the raw Extension API schemas, rather than a
-// substituted test schema. This is useful to both show how the system is
-// intended to be used in the future as well as to make sure that it works with
-// actual APIs.
-TEST_F(APIBindingsSystemTestWithRealAPI, RealAPIs) {
-  v8::HandleScope handle_scope(isolate());
-  v8::Local<v8::Context> context = MainContext();
-
-  v8::Local<v8::Object> chrome = v8::Object::New(isolate());
-  {
-    v8::Maybe<bool> res = context->Global()->Set(
-        context, gin::StringToV8(isolate(), "chrome"), chrome);
-    ASSERT_TRUE(res.IsJust());
-    ASSERT_TRUE(res.FromJust());
-  }
-
-  auto add_api_to_chrome = [this, &chrome,
-                            &context](const std::string& api_name) {
-    v8::Local<v8::Object> api = bindings_system()->CreateAPIInstance(
-        api_name, context, context->GetIsolate(), base::Bind(&AllowAllAPIs),
-        nullptr);
-    ASSERT_FALSE(api.IsEmpty()) << api_name;
-    v8::Maybe<bool> res = chrome->Set(
-        context, gin::StringToV8(context->GetIsolate(), api_name), api);
-    ASSERT_TRUE(res.IsJust());
-    ASSERT_TRUE(res.FromJust());
-  };
-
-  // Pick two relatively small APIs that don't have any custom bindings (which
-  // aren't supported yet).
-  add_api_to_chrome("idle");
-  add_api_to_chrome("power");
-
-  // Test passing methods.
-  {
-    const char kTestCall[] = "chrome.power.requestKeepAwake('display');";
-    ExecuteScript(context, kTestCall);
-    ValidateLastRequest("power.requestKeepAwake", "['display']");
-    EXPECT_EQ(-1, last_request()->request_id);
-    reset_last_request();
-  }
-
-  {
-    const char kTestCall[] = "chrome.power.releaseKeepAwake()";
-    ExecuteScript(context, kTestCall);
-    ValidateLastRequest("power.releaseKeepAwake", "[]");
-    EXPECT_EQ(-1, last_request()->request_id);
-    reset_last_request();
-  }
-
-  {
-    const char kTestCall[] = "chrome.idle.queryState(30, function() {})";
-    ExecuteScript(context, kTestCall);
-    ValidateLastRequest("idle.queryState", "[30]");
-    EXPECT_NE(-1, last_request()->request_id);
-    reset_last_request();
-  }
-
-  {
-    const char kTestCall[] = "chrome.idle.setDetectionInterval(30);";
-    ExecuteScript(context, kTestCall);
-    ValidateLastRequest("idle.setDetectionInterval", "[30]");
-    EXPECT_EQ(-1, last_request()->request_id);
-    reset_last_request();
-  }
-
-  // Check catching errors.
-  const char kError[] = "Uncaught TypeError: Invalid invocation";
-  {
-    // "disp" is not an allowed enum value.
-    const char kTestCall[] = "chrome.power.requestKeepAwake('disp');";
-    ExecuteScriptAndExpectError(context, kTestCall, kError);
-    EXPECT_FALSE(last_request());
-    reset_last_request();  // Just to not pollute future results.
-  }
-
-  {
-    // The queryState() param has a minimum of 15.
-    const char kTestCall[] = "chrome.idle.queryState(10, function() {});";
-    ExecuteScriptAndExpectError(context, kTestCall, kError);
-    EXPECT_FALSE(last_request());
-    reset_last_request();  // Just to not pollute future results.
-  }
-
-  {
-    const char kTestCall[] =
-        "chrome.idle.onStateChanged.addListener(state => {\n"
-        "  this.idleState = state;\n"
-        "});\n";
-    ExecuteScript(context, kTestCall);
-    EXPECT_EQ("undefined", GetStringPropertyFromObject(context->Global(),
-                                                       context, "idleState"));
-    bindings_system()->FireEventInContext("idle.onStateChanged", context,
-                                          *ListValueFromString("['active']"));
-
-    EXPECT_EQ("\"active\"", GetStringPropertyFromObject(context->Global(),
-                                                        context, "idleState"));
-  }
-}
-
 }  // namespace extensions