/* Copyright 2015 The TensorFlow 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,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/

// This file has "python" in its name. Thus, it should trigger the python
// specific code paths.

#include <sys/stat.h>
#include <unistd.h>
#include <iostream>
#include <string>

#include "tensorflow/core/lib/core/status_test_util.h"
#include "tensorflow/core/platform/env.h"
#include "tensorflow/core/platform/test.h"

int myargc;
char** myargv;

char kMagicBazelDirSubstring[] = ".runfiles/org_tensorflow";
char kPythonFile[] =
    "/some/path/to/pythontest.runfiles/org_tensorflow/stuff/to/run.py";

namespace tensorflow {

TEST(FakePythonEnvTest, GetExecutablePath) {
  // See if argc is greater than 1 and first arg is kPythonFile
  // If not, rerun the executable with proper args.
  if (myargc <= 1 || strstr(myargv[1], kMagicBazelDirSubstring) == nullptr) {
    const char* filename = myargv[0];
    char* new_argv[] = {
        myargv[0],
        kPythonFile,
        nullptr,
    };

    execv(filename, new_argv);
  }

  Env* env = Env::Default();
  // We depend on the file/executable name to include python and fool the
  // library to think this is running under the python interpreter.
  string path = env->GetExecutablePath();
  EXPECT_TRUE(strstr(path.c_str(), kMagicBazelDirSubstring) != nullptr);
}

}  // namespace tensorflow

int main(int argc, char** argv) {
  ::testing::InitGoogleTest(&argc, argv);
  myargc = argc;
  myargv = argv;
  return RUN_ALL_TESTS();
}