Refactor test infrastructure (#2432)

* use subclass of unittest.TestCase for all test cases

* allow to run single test file (eg. python tools/integration_tests.py)

* test filtering (via --pattern/-p CLI flag)

* use common CLI parser for all tests:
  usage: test.py [-h] [--failfast] [--verbose] [--executable EXECUTABLE]
               [--release] [--pattern PATTERN] [--build-dir BUILD_DIR]

  optional arguments:
  -h, --help            show this help message and exit
  --failfast, -f        Stop on first failure
  --verbose, -v         Verbose output
  --executable EXECUTABLE
                        Use external executable of Deno
  --release             Test against release executable
  --pattern PATTERN, -p PATTERN
                        Run tests that match provided pattern
  --build-dir BUILD_DIR
                        Deno build directory

* respect NO_COLOR variable

1 files changed, 3 insertions, 3 deletions

diff --git a/tools/is_tty_test.py b/tools/is_tty_test.py
index 79267fdd5..16a4ef255 100755
--- a/tools/is_tty_test.py
+++ b/tools/is_tty_test.py
@@ -1,11 +1,11 @@
 #!/usr/bin/env python
 # Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
 import os
-import subprocess
 import unittest
 from sys import stdin
 
-from util import DenoTestCase, test_main, tty_capture
+from test_util import DenoTestCase, run_tests
+from util import tty_capture
 
 IS_TTY_TEST_TS = "tests/is_tty.ts"
 
@@ -20,4 +20,4 @@ class TestIsTty(DenoTestCase):
 
 
 if __name__ == "__main__":
-    test_main()
+    run_tests()