1 files changed, 79 insertions, 0 deletions
diff --git a/chromium/chrome/renderer/extensions/accessibility_private_hooks_delegate_unittest.cc b/chromium/chrome/renderer/extensions/accessibility_private_hooks_delegate_unittest.cc
new file mode 100644
index 00000000000..da69b47febb
--- /dev/null
+++ b/chromium/chrome/renderer/extensions/accessibility_private_hooks_delegate_unittest.cc
@@ -0,0 +1,79 @@
+// Copyright 2019 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/renderer/extensions/accessibility_private_hooks_delegate.h"
+
+#include "base/strings/stringprintf.h"
+#include "extensions/common/constants.h"
+#include "extensions/common/extension_builder.h"
+#include "extensions/common/features/feature_provider.h"
+#include "extensions/renderer/bindings/api_binding_test_util.h"
+#include "extensions/renderer/native_extension_bindings_system.h"
+#include "extensions/renderer/native_extension_bindings_system_test_base.h"
+#include "extensions/renderer/script_context.h"
+
+namespace extensions {
+
+using AccessibilityPrivateHooksDelegateTest =
+    NativeExtensionBindingsSystemUnittest;
+
+TEST_F(AccessibilityPrivateHooksDelegateTest, TestGetDisplayLanguage) {
+  // Initialize bindings system.
+  bindings_system()
+      ->api_system()
+      ->GetHooksForAPI("accessibilityPrivate")
+      ->SetDelegate(std::make_unique<AccessibilityPrivateHooksDelegate>());
+  // Register extension.
+  // Ensure that the extension has access to the accessibilityPrivate API by
+  // setting the extension ID to the ChromeVox extension ID, as well as giving
+  // it permission to the accessibilityPrivate API.
+  scoped_refptr<const Extension> extension =
+      ExtensionBuilder("testExtension")
+          .AddPermission("accessibilityPrivate")
+          .SetLocation(Manifest::COMPONENT)
+          .Build();
+  RegisterExtension(extension);
+  v8::HandleScope handle_scope(isolate());
+  v8::Local<v8::Context> context = MainContext();
+  ScriptContext* script_context = CreateScriptContext(
+      context, extension.get(), Feature::BLESSED_EXTENSION_CONTEXT);
+  script_context->set_url(extension->url());
+  bindings_system()->UpdateBindingsForContext(script_context);
+
+  // Ensure that the extension has access to the accessibilityPrivate API.
+  const Feature* a11y_private =
+      FeatureProvider::GetAPIFeature("accessibilityPrivate");
+  ASSERT_TRUE(a11y_private);
+  Feature::Availability availability =
+      a11y_private->IsAvailableToExtension(extension.get());
+  ASSERT_TRUE(availability.is_available()) << availability.message();
+
+  // Setup function that will run extension api.
+  auto run_get_display_language = [context](const char* args) {
+    SCOPED_TRACE(args);
+    constexpr char kRunGetDisplayLanguageFunction[] =
+        R"((function() {
+          return chrome.accessibilityPrivate.getDisplayLanguage(%s);
+        }))";
+    v8::Local<v8::Function> function = FunctionFromString(
+        context, base::StringPrintf(kRunGetDisplayLanguageFunction, args));
+    v8::Local<v8::Value> result = RunFunction(function, context, 0, nullptr);
+    return V8ToString(result, context);
+  };
+
+  // Test behavior.
+  EXPECT_EQ(R"("")", run_get_display_language("'',''"));
+  EXPECT_EQ(R"("")", run_get_display_language("'not a language code','ja-JP'"));
+  EXPECT_EQ(R"("")",
+            run_get_display_language("'zh-TW', 'not a language code'"));
+  EXPECT_EQ(R"("English")", run_get_display_language("'en','en'"));
+  EXPECT_EQ(R"("English")", run_get_display_language("'en-US','en'"));
+  EXPECT_EQ(R"("français")", run_get_display_language("'fr','fr'"));
+  EXPECT_EQ(R"("español")", run_get_display_language("'es','es'"));
+  EXPECT_EQ(R"("日本語")", run_get_display_language("'ja','ja'"));
+  EXPECT_EQ(R"("anglais")", run_get_display_language("'en','fr'"));
+  EXPECT_EQ(R"("Japanese")", run_get_display_language("'ja','en'"));
+}
+
+}  // namespace extensions