[tests] switch to pytest

tests/util/test_cli.py

@@ -1,43 +1,27 @@
-import unittest
+import pytest
 
 import util.cli
 
+def test_valid_command():
+    assert util.cli.execute("echo test") == "test\n"
 
-class cli(unittest.TestCase):
-    def setUp(self):
-        self.nonExistentCommand = "i-do-not-exist"
-        self.validCommand = "echo test"
-        self.validCommandOutput = "test\n"
-        self.utfCommand = "echo ÖPmŧß"
-        self.utfCommandOutput = "ÖPmŧß\n"
+def test_utf_command():
+    rv = util.cli.execute("echo ÖPmŧß")
+    assert util.cli.execute("echo ÖPmŧß") == "ÖPmŧß\n"
 
-    def test_valid_command(self):
-        rv = util.cli.execute(self.validCommand)
-        self.assertEqual(self.validCommandOutput, rv)
+def test_invalid_command():
+    with pytest.raises(RuntimeError):
+        util.cli.execute("i-do-not-exist")
 
-    def test_utf_command(self):
-        rv = util.cli.execute(self.utfCommand)
-        self.assertEqual(self.utfCommandOutput, rv)
+def test_command_exit_code():
+    with pytest.raises(RuntimeError):
+        util.cli.execute("cat i-do-not-exist")
 
-    def test_invalid_command(self):
-        with self.assertRaises(RuntimeError):
-            util.cli.execute(self.nonExistentCommand)
+def test_command_exit_code_no_error():
+    util.cli.execute("cat i-do-not-exist", ignore_errors=True)
 
-    def test_command_exit_code(self):
-        with self.assertRaises(RuntimeError):
-            util.cli.execute("cat {}".format(self.nonExistentCommand))
-
-    def test_command_exit_code_no_error(self):
-        try:
-            util.cli.execute(
-                "cat {}".format(self.nonExistentCommand), ignore_errors=True
-            )
-        except Exception:
-            self.fail("exception was thrown")
-
-    def test_async(self):
-        rv = util.cli.execute(self.validCommand, wait=False)
-        self.assertEqual("", rv)
+def test_async():
+    assert util.cli.execute("echo test", wait=False) == ""
 
 
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