Use STDIN project in test_projects to ensure it runs quickly (#2575)

Existing test was actually running a full black-primer
run which could be slow. This goes from 8 seconds to
0.4 seconds on my machine.

Needed to move to top level scope to leverage the caplog
feature of pytest in order to test that the command line
was parsing the bogus arguments and dumping to stderr.

diff --git a/tests/test_primer.py b/tests/test_primer.py
index 2aac2d09ff53a0f6124040f67b161fa061e75043..9bb401574ca1c2bb296170f7b9dce84dca9ca4dd 100644 (file)
--- a/tests/test_primer.py
+++ b/tests/test_primer.py
@@ -9,6 +9,7 @@ from io import StringIO
 from os import getpid
 from pathlib import Path
 from platform import system
+from pytest import LogCaptureFixture
 from subprocess import CalledProcessError
 from tempfile import TemporaryDirectory, gettempdir
 from typing import Any, Callable, Iterator, List, Tuple, TypeVar
@@ -267,18 +268,23 @@ class PrimerCLITests(unittest.TestCase):
         result = runner.invoke(cli.main, ["--help"])
         self.assertEqual(result.exit_code, 0)
 
-    def test_projects(self) -> None:
+
+def test_projects(caplog: LogCaptureFixture) -> None:
+    with event_loop():
+        runner = CliRunner()
+        result = runner.invoke(cli.main, ["--projects=STDIN,asdf"])
+        assert result.exit_code == 0
+        assert "1 / 1 succeeded" in result.output
+        assert "Projects not found: {'asdf'}" in caplog.text
+
+    caplog.clear()
+
+    with event_loop():
         runner = CliRunner()
-        with event_loop():
-            result = runner.invoke(cli.main, ["--projects=tox,asdf"])
-            self.assertEqual(result.exit_code, 0)
-            assert "1 / 1 succeeded" in result.output
-
-        with event_loop():
-            runner = CliRunner()
-            result = runner.invoke(cli.main, ["--projects=tox,attrs"])
-            self.assertEqual(result.exit_code, 0)
-            assert "2 / 2 succeeded" in result.output
+        result = runner.invoke(cli.main, ["--projects=fdsa,STDIN"])
+        assert result.exit_code == 0
+        assert "1 / 1 succeeded" in result.output
+        assert "Projects not found: {'fdsa'}" in caplog.text
 
 
 if __name__ == "__main__":