PaymentApp: Implement GetAllManifests() in PaymentAppContext.

content/browser/payments/payment_app_context_impl_unittest.cc

+// Copyright 2016 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 "base/run_loop.h"
+#include "content/browser/payments/payment_app_content_unittest_base.h"
+
+namespace content {
+namespace {
+
+void SetManifestCallback(payments::mojom::PaymentAppManifestError* out_error,
+                         payments::mojom::PaymentAppManifestError error) {
+  *out_error = error;
+}
+
+void GetAllManifestsCallback(PaymentAppContext::Manifests* out_manifests,
+                             PaymentAppContext::Manifests manifests) {
+  *out_manifests = std::move(manifests);
+}
+
+}  // namespace
+
+class PaymentAppContextTest : public PaymentAppContentUnitTestBase {
+ public:
+  PaymentAppContextTest() {}

[please use gerrit instead, 2016/12/12 20:17:39]

Need a destructor as well.

[zino, 2016/12/16 19:45:41]

Done.

+
+  void GetAllManifests(PaymentAppContext::GetAllManifestsCallback callback) {
+    GetPaymentAppContext()->GetAllManifests(callback);
+    base::RunLoop().RunUntilIdle();
+  }
+
+  void CreatePaymentApp(const GURL& scope_url, const GURL& sw_script_url) {
+    PaymentAppManager* manager =
+        CreatePaymentAppManager(scope_url, sw_script_url);
+
+    payments::mojom::PaymentAppOptionPtr option =
+        payments::mojom::PaymentAppOption::New();
+    option->label = "Visa ****";
+    option->id = "payment-app-id";
+    option->icon = std::string("payment-app-icon");
+    option->enabled_methods.push_back("visa");
+
+    payments::mojom::PaymentAppManifestPtr manifest =
+        payments::mojom::PaymentAppManifest::New();
+    manifest->icon = std::string("payment-app-icon");
+    manifest->label = scope_url.spec();
+    manifest->options.push_back(std::move(option));
+
+    payments::mojom::PaymentAppManifestError error;
+    SetManifest(manager, scope_url.spec(), std::move(manifest),
+                base::Bind(&SetManifestCallback, &error));
+    ASSERT_EQ(error, payments::mojom::PaymentAppManifestError::NONE);
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(PaymentAppContextTest);
+};
+
+TEST_F(PaymentAppContextTest, Test) {
+  const char* kPaymentAppInfo[][2] = {
+      {"https://example.com/a", "https://example.com/a/script.js"},
+      {"https://example.com/b", "https://example.com/b/script.js"},
+      {"https://example.com/c", "https://example.com/c/script.js"},
+  };

[please use gerrit instead, 2016/12/12 20:17:39]

The standard way to create test data list is:

static const struct {
  const char* scopeUrl;
  const char* scriptUrl;
} kPaymentAppInfo[] = {
  {"https://example.com/a", "https://example.com/a/script.js"},
  {"https://example.com/b", "https://example.com/b/script.js"},
  {"https://example.com/c", "https://example.com/c/script.js"}
};

Then use it in a loop like so:

for (size_t i = 0; i < arraysize(kPaymentAppInfo); ++i) {
  CreatePaymentApp(GURL(kPaymentAppInfo[i].scopeUrl),
GURL(kPaymentAppInfo[i].scriptUrl));
}

[zino, 2016/12/16 19:45:40]

Done.

+
+  for (int i = 0; i < 3; i++) {
+    CreatePaymentApp(GURL(kPaymentAppInfo[i][0]), GURL(kPaymentAppInfo[i][1]));
+  }
+
+  PaymentAppContext::Manifests manifests;
+  GetAllManifests(base::Bind(&GetAllManifestsCallback, &manifests));
+
+  ASSERT_EQ(manifests.size(), 3U);
+  int i = 0;
+  for (auto& manifest : manifests) {

[please use gerrit instead, 2016/12/12 20:17:39]

const auto&

[zino, 2016/12/16 19:45:41]

Done.

+    EXPECT_EQ(manifest.second->icon, std::string("payment-app-icon"));

[please use gerrit instead, 2016/12/12 20:17:39]

Is std::string() wrapper necessary? I see that you're using "visa" without the
wrapper below.

[zino, 2016/12/16 19:45:40]

The type is base::Optional<std::string>.
https://cs.chromium.org/chromium/src/out/Debug/gen/components/payments/paymen...

+    EXPECT_EQ(manifest.second->label, kPaymentAppInfo[i++][0]);
+    ASSERT_EQ(manifest.second->options.size(), 1U);
+    EXPECT_EQ(manifest.second->options[0]->icon,
+              std::string("payment-app-icon"));
+    EXPECT_EQ(manifest.second->options[0]->label, "Visa ****");
+    EXPECT_EQ(manifest.second->options[0]->id, "payment-app-id");
+    ASSERT_EQ(manifest.second->options[0]->enabled_methods.size(), 1U);
+    EXPECT_EQ(manifest.second->options[0]->enabled_methods[0], "visa");
+  }
+}
+
+}  // namespace content