Language test application (sgstest)

The application runs all test scripts in ./tests directory. File handling rules are as follows:

• Ignore files with !_ prefix.
• Require compilation success for tests with s_ prefix.
• Require compilation failure for tests with f_ prefix.
• If there is no prefix, require that the system does not crash.
• If a file name as TF in it, use the advanced testing framework.
• Files are sorted according to the logical order of testing: requirements grow with test file number:
  • first sort by whether testing framework (TF) is required (files that don't need it go first);
  • then sort by whether compilation success is required (files that do need it go first);
  • finally, sort by whether compilation state is expected (files that do need it go first);

The sort order broken down:

• 1. s_ tests without TF
• 2. f_ tests without TF
• 3. tests without prefix and TF
• 4. s_ tests with TF
• 5. f_ tests with TF (none such tests exist because it would make no sense to have them)
• 6. tests without prefix but with TF

The application sgstest must be run from root, like so: bin/sgstest. It generates two log files: ./tests-errors.log and ./tests-output.log.