Add base to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@8 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 83 insertions, 0 deletions

diff --git a/base/multiprocess_test.h b/base/multiprocess_test.h
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+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef BASE_MULTIPROCESS_TEST_H__
+#define BASE_MULTIPROCESS_TEST_H__
+
+#include "base/command_line.h"
+#include "base/process_util.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+// Command line switch to invoke a child process rather than
+// to run the normal test suite.
+static const wchar_t kRunClientProcess[] = L"client";
+
+// A MultiProcessTest is a test class which makes it easier to
+// write a test which requires code running out of process.
+//
+// To create a multiprocess test simply follow these steps:
+//
+// 1) Derive your test from MultiProcessTest.
+// 2) Modify your mainline so that if it sees the
+//    kRuNClientProcess switch, it will deal with it.
+// 3) Create a mainline function for the child processes
+// 4) Call SpawnChild("foo"), where "foo" is the name of
+//    the function you wish to run in the child processes.
+// That's it!
+//
+class MultiProcessTest : public testing::Test {
+ public:
+  // Prototype function for a client function.  Multi-process
+  // clients must provide a callback with this signature to run.
+  typedef int (__cdecl *ChildFunctionPtr)();
+
+ protected:
+  // Run a child process.
+  // 'procname' is the name of a function which the child will
+  // execute.  It must be exported from this library in order to
+  // run.
+  //
+  // Example signature:
+  //    extern "C" int __declspec(dllexport) FooBar() {
+  //         // do client work here
+  //    }
+  //
+  // Returns the handle to the child, or NULL on failure
+  HANDLE SpawnChild(const std::wstring& procname) {
+    std::wstring cl(GetCommandLineW());
+    CommandLine::AppendSwitchWithValue(&cl, kRunClientProcess, procname);
+    // TODO(darin): re-enable this once we have base/debug_util.h
+    //ProcessDebugFlags(&cl, DebugUtil::UNKNOWN, false);
+    HANDLE handle = NULL;
+    process_util::LaunchApp(cl, false, true, &handle);
+    return handle;
+  }
+};
+
+#endif  // BASE_MULTIPROCESS_TEST_H__