Add ASCII messages for OK/FAIL/SKIP lines

Fixes #1421.

CONTRIBUTORS

@@ -20,6 +20,7 @@ Bastien Vallet
 Benoit Pierre
 Bernat Gabor
 Brett Langdon
+Brett Smith
 Bruno Oliveira
 Carl Meyer
 Charles Brunet

docs/changelog/1421.bugfix.rst

@@ -0,0 +1 @@
+``--parallel`` reports now show ASCII OK/FAIL/SKIP lines when full Unicode output is not available - by :user:`brettcs`

src/tox/util/spinner.py

@@ -36,6 +36,9 @@ class Spinner(object):
     CLEAR_LINE = "\033[K"
     max_width = 120
     FRAMES = SpinnerMessage("⠋⠙⠹⠸⠼⠴⠦⠧⠇⠏", "|-+x*")
+    OK_FLAG = SpinnerMessage("✔ OK", "[ OK ]")
+    FAIL_FLAG = SpinnerMessage("✖ FAIL", "[FAIL]")
+    SKIP_FLAG = SpinnerMessage("⚠ SKIP", "[SKIP]")
 
     def __init__(self, enabled=True, refresh_rate=0.1):
         self.refresh_rate = refresh_rate
@@ -100,13 +103,13 @@ def add(self, name):
         self._envs[name] = datetime.now()
 
     def succeed(self, key):
-        self.finalize(key, "✔ OK", green=True)
+        self.finalize(key, self.OK_FLAG.for_file(self._file), green=True)
 
     def fail(self, key):
-        self.finalize(key, "✖ FAIL", red=True)
+        self.finalize(key, self.FAIL_FLAG.for_file(self._file), red=True)
 
     def skip(self, key):
-        self.finalize(key, "⚠ SKIP", white=True)
+        self.finalize(key, self.SKIP_FLAG.for_file(self._file), white=True)
 
     def finalize(self, key, status, **kwargs):
         start_at = self._envs[key]

tests/unit/util/test_spinner.py

@@ -113,6 +113,31 @@ def test_spinner_stdout_not_unicode(mocker, capfd):
     assert all(f in written for f in spin.frames)
 
 
+@freeze_time("2012-01-14")
+def test_spinner_report_not_unicode(mocker, capfd):
+    stdout = mocker.patch("tox.util.spinner.sys.stdout")
+    stdout.encoding = "ascii"
+    # Disable color to simplify parsing output strings
+    stdout.isatty = lambda: False
+    with spinner.Spinner(refresh_rate=100) as spin:
+        spin.stream.write(os.linesep)
+        spin.add("ok!")
+        spin.add("fail!")
+        spin.add("skip!")
+        spin.succeed("ok!")
+        spin.fail("fail!")
+        spin.skip("skip!")
+    lines = "".join(args[0] for args, _ in stdout.write.call_args_list).split(os.linesep)
+    del lines[0]
+    expected = [
+        "\r{}[ OK ] ok! in 0.0 seconds".format(spin.CLEAR_LINE),
+        "\r{}[FAIL] fail! in 0.0 seconds".format(spin.CLEAR_LINE),
+        "\r{}[SKIP] skip! in 0.0 seconds".format(spin.CLEAR_LINE),
+        "\r{}".format(spin.CLEAR_LINE),
+    ]
+    assert lines == expected
+
+
 @pytest.mark.parametrize(
     "seconds, expected",
     [