chore: refactor python tests to use unittest (#2414)

Move every test to a method on DenoTestCase.
test.py is a single TestSuite of every TestCase.

Add a Spawn context manager for http_server,
this is explicitly used where it's needed.
Each python test file can now be run independently
without needing to manually run http_server.

Add --help and consistent flags using argparse for
each python test, including --failfast.

Use ColorTextTestRunner so that '... ok' is green.

1 files changed, 11 insertions, 15 deletions

diff --git a/tools/is_tty_test.py b/tools/is_tty_test.py
index 6f7509a8c..79267fdd5 100755
--- a/tools/is_tty_test.py
+++ b/tools/is_tty_test.py
@@ -1,27 +1,23 @@
 #!/usr/bin/env python
 # Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
 import os
-import pty
-import select
 import subprocess
-from util import build_path, executable_suffix
+import unittest
 from sys import stdin
-from permission_prompt_test import tty_capture
-
-IS_TTY_TEST_TS = "tests/is_tty.ts"
 
+from util import DenoTestCase, test_main, tty_capture
 
-def is_tty_test(deno_exe):
-    cmd = [deno_exe, "run", IS_TTY_TEST_TS]
-    code, stdout, _ = tty_capture(cmd, b'')
-    assert code == 0
-    assert str(stdin.isatty()).lower() in stdout
+IS_TTY_TEST_TS = "tests/is_tty.ts"
 
 
-def main():
-    deno_exe = os.path.join(build_path(), "deno" + executable_suffix)
-    is_tty_test(deno_exe)
+@unittest.skipIf(os.name == 'nt', "Unable to test tty on Windows")
+class TestIsTty(DenoTestCase):
+    def test_is_tty(self):
+        cmd = [self.deno_exe, "run", IS_TTY_TEST_TS]
+        code, stdout, _ = tty_capture(cmd, b'')
+        assert code == 0
+        assert str(stdin.isatty()).lower() in stdout
 
 
 if __name__ == "__main__":
-    main()
+    test_main()