Add python_utils to append to python path

net/test/python_utils_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 "base/environment.h"
+#include "base/file_path.h"
+#include "base/scoped_ptr.h"
+#include "net/test/python_utils.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+TEST(PythonUtils, Append) {
+  const FilePath::CharType kAppendDir1[] =
+      FILE_PATH_LITERAL("test/path_append1");
+  const FilePath::CharType kAppendDir2[] =
+      FILE_PATH_LITERAL("test/path_append2");
+
+  scoped_ptr<base::Environment> env(base::Environment::Create());
+
+  std::string python_path;
+  FilePath append_path1(kAppendDir1);
+  FilePath append_path2(kAppendDir2);
+
+  // Get a clean start
+  env->UnSetVar(kPythonPathEnv);
+
+  // Append the path
+  AppendToPythonPath(append_path1);
+  env->GetVar(kPythonPathEnv, &python_path);
+  ASSERT_EQ(python_path, "test/path_append1");
+
+  // Append the safe path again, nothing changes
+  AppendToPythonPath(append_path2);
+  env->GetVar(kPythonPathEnv, &python_path);
+#if defined(OS_WIN)
+  ASSERT_EQ(std::string("test/path_append1;test/path_append2"), python_path);
+#elif defined(OS_POSIX)
+  ASSERT_EQ(std::string("test/path_append1:test/path_append2"), python_path);
+#endif
+}
+
+TEST(PythonUtils, PythonRunTime) {
+  FilePath dir;
+  EXPECT_TRUE(GetPythonRunTime(&dir));
+#if defined(OS_WIN)
+  EXPECT_NE(std::wstring::npos,
+            dir.value().find(L"third_party\\python_24\\python.exe"));
+#elif defined(OS_POSIX)
+  EXPECT_NE(std::string::npos, dir.value().find("python"));
+#endif
+}
+