title: How to add prerequisite check in a googletest test suite?
body: <p>I have a test suite with multiple unit tests, and all these unit tests expect specific working directory as they use relative path to load some test data. If unit test executable is executed from some wrong directory, all these unit tests fail.</p>
  
  <p>What's the proper way to make this check in gtest? Preferably so that I get one single failure message instead of having 50 failed unit tests with the same message.</p>
  
  <p>One way is to use fixture and do single time check, but in that case I still get all these 50 unit test failures instead of skipping the rest of the test suite</p>