As promised, add a unit test that makes sure the in app payments app gets installed and is enabled.

chrome/browser/extensions/external_provider_impl_unittest.cc

Index: chrome/browser/extensions/external_provider_impl_unittest.cc
diff --git a/chrome/browser/extensions/external_provider_impl_unittest.cc b/chrome/browser/extensions/external_provider_impl_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..a8a44652ca3ef615ddb8b5ec3627f108af0a3cea
--- /dev/null
+++ b/chrome/browser/extensions/external_provider_impl_unittest.cc
@@ -0,0 +1,124 @@
+// Copyright 2013 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/browser/extensions/external_provider_impl.h"
+
+#include "base/command_line.h"
+#include "base/file_util.h"
+#include "base/files/file_path.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/path_service.h"
+#include "base/strings/stringprintf.h"
+#include "base/test/scoped_path_override.h"
+#include "chrome/browser/chrome_notification_types.h"
+#include "chrome/browser/extensions/extension_service_unittest.h"
+#include "chrome/common/chrome_paths.h"
+#include "chrome/common/chrome_switches.h"
+#include "chrome/test/base/testing_profile.h"
+#include "content/public/browser/notification_service.h"
+#include "content/public/test/test_utils.h"
+#include "net/test/embedded_test_server/embedded_test_server.h"
+#include "net/test/embedded_test_server/http_request.h"
+#include "net/test/embedded_test_server/http_response.h"
+
+namespace extensions {
+
+namespace {
+
+using namespace net::test_server;
+
+const char kManifestPath[] = "/update_manifest";
+const char kAppPath[] = "/app.crx";
+
+class ExternalProviderImplTest : public ExtensionServiceTestBase {
+ public:
+  ExternalProviderImplTest() {}
+  virtual ~ExternalProviderImplTest() {}
+
+  void InitServiceWithExternalProviders() {
+    InitializeExtensionServiceWithUpdater();
+
+    ProviderCollection providers;
+    extensions::ExternalProviderImpl::CreateExternalProviders(
+        service_, profile_.get(), &providers);
+
+    for (ProviderCollection::iterator i = providers.begin();
+         i != providers.end();
+         ++i) {
+      service_->AddProviderForTesting(i->release());
+    }
+  }
+
+  // ExtensionServiceTestBase overrides:
+  virtual void SetUp() OVERRIDE {
+    ExtensionServiceTestBase::SetUp();
+    test_server_.reset(new EmbeddedTestServer());
+    ASSERT_TRUE(test_server_->InitializeAndWaitUntilReady());
+    test_server_->RegisterRequestHandler(
+        base::Bind(&ExternalProviderImplTest::HandleRequest,
+                   base::Unretained(this)));
+
+    CommandLine* cmdline = CommandLine::ForCurrentProcess();
+    cmdline->AppendSwitchASCII(switches::kAppsGalleryUpdateURL,
+                               test_server_->GetURL(kManifestPath).spec());
+  }
+
+ private:
+  scoped_ptr<HttpResponse> HandleRequest(const HttpRequest& request) {
+    GURL url = test_server_->GetURL(request.relative_url);
+    if (url.path() == kManifestPath) {
+      scoped_ptr<BasicHttpResponse> response(new BasicHttpResponse);
+      response->set_code(net::HTTP_OK);
+      response->set_content(base::StringPrintf(
+          "<?xml version='1.0' encoding='UTF-8'?>\n"
+          "<gupdate xmlns='http://www.google.com/update2/response' "
+              "protocol='2.0'>\n"
+          "  <app appid='%s'>\n"
+          "    <updatecheck codebase='%s' version='1.0' />\n"
+          "  </app>\n"
+          "</gupdate>",
+          extension_misc::kInAppPaymentsSupportAppId,
+          test_server_->GetURL(kAppPath).spec().c_str()));
+      response->set_content_type("text/xml");
+      return response.PassAs<HttpResponse>();
+    }
+    if (url.path() == kAppPath) {
+      base::FilePath test_data_dir;
+      PathService::Get(chrome::DIR_TEST_DATA, &test_data_dir);
+      std::string contents;
+      base::ReadFileToString(
+          test_data_dir.AppendASCII("extensions/dummyiap.crx"),
+          &contents);
+      scoped_ptr<BasicHttpResponse> response(new BasicHttpResponse);
+      response->set_code(net::HTTP_OK);
+      response->set_content(contents);
+      return response.PassAs<HttpResponse>();
+    }
+
+    return scoped_ptr<HttpResponse>();
+  }
+
+  scoped_ptr<EmbeddedTestServer> test_server_;
+
+  DISALLOW_COPY_AND_ASSIGN(ExternalProviderImplTest);
+};
+
+}  // namespace
+
+TEST_F(ExternalProviderImplTest, InAppPayments) {
+  InitServiceWithExternalProviders();
+
+  service_->CheckForExternalUpdates();
+  content::WindowedNotificationObserver(
+      chrome::NOTIFICATION_CRX_INSTALLER_DONE,
+      content::NotificationService::AllSources()).Wait();
+
+
+  EXPECT_TRUE(service_->GetInstalledExtension(
+      extension_misc::kInAppPaymentsSupportAppId));
+  EXPECT_TRUE(service_->IsExtensionEnabled(
+      extension_misc::kInAppPaymentsSupportAppId));
+}
+
+}  // namespace extensions