Display the proxy PAC javascript errors in the NetLog....

net/base/forwarding_net_log_unittest.cc

+// Copyright (c) 2010 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/base/forwarding_net_log.h"
+
+#include "base/message_loop.h"
+#include "net/base/capturing_net_log.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace net {
+
+namespace {
+
+// Test forwarding a call to AddEntry() to another implementation, operating
+// on this same message loop.
+TEST(ForwardingNetLogTest, Basic) {
+  // Create a forwarding NetLog that sends messages to this same thread.
+  CapturingNetLog log(CapturingNetLog::kUnbounded);
+  ForwardingNetLog forwarding(&log, MessageLoop::current());
+
+  EXPECT_EQ(0u, log.entries().size());
+
+  NetLogStringParameter* params = new NetLogStringParameter("xxx", "yyy");
+
+  forwarding.AddEntry(
+      NetLog::TYPE_PAC_JAVASCRIPT_ALERT,
+      base::TimeTicks(),
+      NetLog::Source(),
+      NetLog::PHASE_NONE,
+      params);
+
+  // Should still be empty, since we posted an async task.
+  EXPECT_EQ(0u, log.entries().size());
+
+  MessageLoop::current()->RunAllPending();
+
+  // After draining the message loop, we should now have executed the task
+  // and hence emitted the log entry.
+  ASSERT_EQ(1u, log.entries().size());
+
+  // Check that the forwarded call contained received all the right inputs.
+  EXPECT_EQ(NetLog::TYPE_PAC_JAVASCRIPT_ALERT, log.entries()[0].type);
+  EXPECT_EQ(NetLog::SOURCE_NONE, log.entries()[0].source.type);
+  EXPECT_EQ(NetLog::PHASE_NONE, log.entries()[0].phase);
+  EXPECT_EQ(params, log.entries()[0].extra_parameters.get());
+
+  // Check that the parameters is still referenced. (if the reference was
+  // lost then this will be a memory error and probaby crash).
+  EXPECT_EQ("yyy", params->value());
+}
+
+// Test forwarding a call to AddEntry() to another implementation that runs
+// on the same message loop. However destroy the forwarder before the posted
+// task has a chance to run.
+TEST(ForwardingNetLogTest, Orphan) {
+  // Create a forwarding NetLog that sends messages to this same thread.
+  CapturingNetLog log(CapturingNetLog::kUnbounded);
+  {
+    ForwardingNetLog forwarding(&log, MessageLoop::current());
+    EXPECT_EQ(0u, log.entries().size());
+
+    forwarding.AddEntry(
+        NetLog::TYPE_PAC_JAVASCRIPT_ALERT,
+        base::TimeTicks(),
+        NetLog::Source(),
+        NetLog::PHASE_NONE,
+        NULL);
+
+    // Should still be empty, since we posted an async task.
+    EXPECT_EQ(0u, log.entries().size());
+  }
+
+  // At this point the ForwardingNetLog is deleted. However it had already
+  // posted a task to the message loop. Once we drain the message loop, we
+  // verify that the task didn't actually try to emit to the NetLog.
+  MessageLoop::current()->RunAllPending();
+  EXPECT_EQ(0u, log.entries().size());
+}
+
+}  // namespace
+
+}  // namespace net
+