Add a header when fetching pages under the DMServer URL.

components/policy/core/browser/policy_header_io_helper_unittest.cc

Index: components/policy/core/browser/policy_header_io_helper_unittest.cc
diff --git a/components/policy/core/browser/policy_header_io_helper_unittest.cc b/components/policy/core/browser/policy_header_io_helper_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..64ab8122823bcacd1fd096e3367dad1dfa3154e2
--- /dev/null
+++ b/components/policy/core/browser/policy_header_io_helper_unittest.cc
@@ -0,0 +1,86 @@
+// Copyright (c) 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 "base/test/test_simple_task_runner.h"

[dconnelly, 2013/12/09 12:47:35]

newline above

[Andrew T Wilson (Slow), 2013/12/10 07:15:56]

Done.

+#include "components/policy/core/browser/policy_header_io_helper.h"
+#include "content/public/test/test_browser_thread_bundle.h"
+#include "net/http/http_request_headers.h"
+#include "net/url_request/url_request_test_util.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace policy {
+
+namespace {
+const char kDMServerURL[] = "http://server_url";
+const char kPolicyHeaderName[] = "Chrome-Policy-Posture";
+const char kInitialPolicyHeader[] = "initial_header";
+}  // namespace
+
+class PolicyHeaderIOHelperTest : public testing::Test {
+ public:
+  PolicyHeaderIOHelperTest() {
+    task_runner_ = make_scoped_refptr(new base::TestSimpleTaskRunner());
+  }
+  virtual ~PolicyHeaderIOHelperTest() {}
+
+  virtual void SetUp() OVERRIDE {
+    helper_ = make_scoped_ptr(new PolicyHeaderIOHelper(kDMServerURL,
+                                                       kInitialPolicyHeader,
+                                                       task_runner_));
+  }
+  virtual void TearDown() {
+    task_runner_->RunUntilIdle();
+    helper_.reset();
+  }
+
+  void ValidateHeader(const net::HttpRequestHeaders& headers,
+                      const std::string& expected) {
+    std::string header;
+    EXPECT_TRUE(headers.GetHeader(kPolicyHeaderName, &header));
+    EXPECT_EQ(header, expected);
+  }
+
+  scoped_ptr<PolicyHeaderIOHelper> helper_;
+  net::TestURLRequestContext context_;
+  scoped_refptr<base::TestSimpleTaskRunner> task_runner_;
+  content::TestBrowserThreadBundle thread_bundle_;
+};
+
+TEST_F(PolicyHeaderIOHelperTest, InitialHeader) {
+  task_runner_->RunUntilIdle();

[dconnelly, 2013/12/09 12:47:35]

Can this move to the end of SetUp instead of reproducing at the beginning of
every test?

[Andrew T Wilson (Slow), 2013/12/10 07:15:56]

Done.

[Andrew T Wilson (Slow), 2013/12/10 07:15:56]

Done.

+  net::TestURLRequest request(
+      GURL(kDMServerURL), net::DEFAULT_PRIORITY, NULL, &context_);
+  helper_->AddPolicyHeaders(&request);
+  ValidateHeader(request.extra_request_headers(), kInitialPolicyHeader);
+}
+
+TEST_F(PolicyHeaderIOHelperTest, NoHeaderOnNonMatchingURL) {
+  task_runner_->RunUntilIdle();
+  net::TestURLRequest request(
+      GURL("http://non-matching.com"), net::DEFAULT_PRIORITY, NULL, &context_);
+  helper_->AddPolicyHeaders(&request);
+  EXPECT_TRUE(request.extra_request_headers().IsEmpty());
+}
+
+TEST_F(PolicyHeaderIOHelperTest, HeaderChange) {
+  task_runner_->RunUntilIdle();
+  std::string new_header = "new_header";
+  helper_->UpdateHeaderFromUI(new_header);
+  task_runner_->RunUntilIdle();
+  net::TestURLRequest request(
+      GURL(kDMServerURL), net::DEFAULT_PRIORITY, NULL, &context_);
+  helper_->AddPolicyHeaders(&request);
+  ValidateHeader(request.extra_request_headers(), new_header);
+}
+
+TEST_F(PolicyHeaderIOHelperTest, ChangeToNoHeader) {
+  task_runner_->RunUntilIdle();
+  helper_->UpdateHeaderFromUI("");
+  task_runner_->RunUntilIdle();
+  net::TestURLRequest request(
+      GURL(kDMServerURL), net::DEFAULT_PRIORITY, NULL, &context_);
+  helper_->AddPolicyHeaders(&request);
+  EXPECT_TRUE(request.extra_request_headers().IsEmpty());
+}
+
+}  // namespace policy