util_test: Don’t crash when run from the wrong location

util/net/http_transport_test.cc

 // Copyright 2014 The Crashpad Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
@@ skipping 39 matching lines @@
         request_validator_(request_validator) {
     // TODO(rsesek): Use a more robust mechanism to locate testdata
     // <https://code.google.com/p/crashpad/issues/detail?id=4>.
     SetChildCommand("util/net/http_transport_test_server.py", nullptr);
   }
 
   const HTTPHeaders& headers() { return headers_; }
 
  private:
   void MultiprocessParent() override {
+    // Use Logging*FD() instead of Checked*FD() so that the test can fail
+    // gracefully with a gtest assertion if the child does not execute properly.
+
     // The child will write the HTTP server port number as a packed unsigned
     // short to stdout.
     uint16_t port;
-    CheckedReadFD(ReadPipeFD(), &port, sizeof(port));
+    ASSERT_TRUE(LoggingReadFD(ReadPipeFD(), &port, sizeof(port)));
 
     // Then the parent will tell the web server what response code to send
     // for the HTTP request.
-    CheckedWriteFD(WritePipeFD(), &response_code_, sizeof(response_code_));
+    ASSERT_TRUE(
+        LoggingWriteFD(WritePipeFD(), &response_code_, sizeof(response_code_)));
 
     // Now execute the HTTP request.
     scoped_ptr<HTTPTransport> transport(HTTPTransport::Create());
     transport->SetMethod("POST");
     transport->SetURL(base::StringPrintf("http://127.0.0.1:%d/upload", port));
     for (const auto& pair : headers_) {
       transport->SetHeader(pair.first, pair.second);
     }
     transport->SetBodyStream(body_stream_.Pass());
 
@@ skipping 155 matching lines @@
   headers[kContentLength] = base::StringPrintf("%zu", strlen(kTextBody));
 
   HTTPTransportTestFixture test(headers, body_stream.Pass(), 200,
       &UnchunkedPlainText);
   test.Run();
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace crashpad