Create an in-process v8 proxy resolver using Mojo.

net/proxy/proxy_service_mojo_unittest.cc

+// Copyright 2015 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 "net/proxy/proxy_service_mojo.h"
+
+#include <string>
+
+#include "base/memory/scoped_ptr.h"
+#include "net/base/load_flags.h"
+#include "net/base/net_log.h"
+#include "net/base/test_completion_callback.h"
+#include "net/dns/mock_host_resolver.h"
+#include "net/proxy/dhcp_proxy_script_fetcher.h"
+#include "net/proxy/mock_proxy_script_fetcher.h"
+#include "net/proxy/proxy_config_service_fixed.h"
+#include "net/proxy/proxy_service.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "url/gurl.h"
+
+namespace net {
+
+namespace {
+
+const char kPacUrl[] = "http://example.com/proxy.pac";
+const char kSimplePacScript[] =
+    "function FindProxyForURL(url, host) {\n"
+    "  return 'PROXY foo:1234';\n"
+    "}";
+const char kDnsResolvePacScript[] =
+    "function FindProxyForURL(url, host) {\n"
+    "  if (dnsResolveEx('example.com') != '1.2.3.4')\n"
+    "    return 'DIRECT';\n"
+    "  return 'QUIC bar:4321';\n"
+    "}";
+
+}  // namespace
+
+class ProxyServiceMojoTest : public testing::Test {
+ protected:
+  void SetUp() override {
+    mock_host_resolver_.rules()->AddRule("example.com", "1.2.3.4");
+
+    fetcher_ = new MockProxyScriptFetcher;
+    proxy_service_.reset(CreateProxyServiceUsingMojoInProcess(
+        new ProxyConfigServiceFixed(
+            ProxyConfig::CreateFromCustomPacURL(GURL(kPacUrl))),
+        fetcher_, new DoNothingDhcpProxyScriptFetcher(), &mock_host_resolver_,
+        nullptr /* NetLog* */, nullptr /* NetworkDelegate* */));
+  }
+
+  MockHostResolver mock_host_resolver_;
+  MockProxyScriptFetcher* fetcher_;  // Owned by |proxy_service_|.
+  scoped_ptr<ProxyService> proxy_service_;
+};
+
+TEST_F(ProxyServiceMojoTest, Basic) {
+  ProxyInfo info;
+  TestCompletionCallback callback;
+  EXPECT_EQ(ERR_IO_PENDING,
+            proxy_service_->ResolveProxy(GURL("http://foo"), net::LOAD_NORMAL,

[Sam McNally, 2015/02/26 06:36:41]

LOAD_NORMAL shouldn't need net::

[Anand Mistry (off Chromium), 2015/02/27 03:00:58]

Done.

+                                         &info, callback.callback(), nullptr,
+                                         nullptr, BoundNetLog()));
+
+  // Proxy script fetcher should have a fetch triggered by the first
+  // |ResolveProxy()| request.
+  EXPECT_TRUE(fetcher_->has_pending_request());
+  EXPECT_EQ(GURL(kPacUrl), fetcher_->pending_request_url());
+  fetcher_->NotifyFetchCompletion(OK, kSimplePacScript);
+
+  EXPECT_EQ(OK, callback.WaitForResult());
+  EXPECT_EQ("PROXY foo:1234", info.ToPacString());
+  EXPECT_EQ(0u, mock_host_resolver_.num_resolve());
+}
+
+TEST_F(ProxyServiceMojoTest, DnsResolution) {
+  ProxyInfo info;
+  TestCompletionCallback callback;
+  EXPECT_EQ(ERR_IO_PENDING,
+            proxy_service_->ResolveProxy(GURL("http://foo"), net::LOAD_NORMAL,

[Sam McNally, 2015/02/26 06:36:41]

Same here.

[Anand Mistry (off Chromium), 2015/02/27 03:00:58]

Done.

+                                         &info, callback.callback(), nullptr,
+                                         nullptr, BoundNetLog()));
+
+  // Proxy script fetcher should have a fetch triggered by the first
+  // |ResolveProxy()| request.
+  EXPECT_TRUE(fetcher_->has_pending_request());
+  EXPECT_EQ(GURL(kPacUrl), fetcher_->pending_request_url());
+  fetcher_->NotifyFetchCompletion(OK, kDnsResolvePacScript);
+
+  EXPECT_EQ(OK, callback.WaitForResult());
+  EXPECT_EQ("QUIC bar:4321", info.ToPacString());
+  EXPECT_EQ(1u, mock_host_resolver_.num_resolve());
+}
+
+}  // namespace net