gh-111201: Fix event queue tests for pyrepl (#118635)

Lib/test/test_pyrepl.py

@@ -2,6 +2,7 @@
 import os
 import rlcompleter
 import sys
+import tempfile
 import unittest
 from code import InteractiveConsole
 from functools import partial
@@ -603,26 +604,32 @@ def test_global_namespace_completion(self):
 
 @patch("_pyrepl.curses.tigetstr", lambda x: b"")
 class TestUnivEventQueue(TestCase):
+    def setUp(self):
+        self.file = tempfile.TemporaryFile()
+
+    def tearDown(self) -> None:
+        self.file.close()
+
     def test_get(self):
-        eq = EventQueue(sys.stdout.fileno(), "utf-8")
+        eq = EventQueue(self.file.fileno(), "utf-8")
         event = Event("key", "a", b"a")
         eq.insert(event)
         self.assertEqual(eq.get(), event)
 
     def test_empty(self):
-        eq = EventQueue(sys.stdout.fileno(), "utf-8")
+        eq = EventQueue(self.file.fileno(), "utf-8")
         self.assertTrue(eq.empty())
         eq.insert(Event("key", "a", b"a"))
         self.assertFalse(eq.empty())
 
     def test_flush_buf(self):
-        eq = EventQueue(sys.stdout.fileno(), "utf-8")
+        eq = EventQueue(self.file.fileno(), "utf-8")
         eq.buf.extend(b"test")
         self.assertEqual(eq.flush_buf(), b"test")
         self.assertEqual(eq.buf, bytearray())
 
     def test_insert(self):
-        eq = EventQueue(sys.stdout.fileno(), "utf-8")
+        eq = EventQueue(self.file.fileno(), "utf-8")
         event = Event("key", "a", b"a")
         eq.insert(event)
         self.assertEqual(eq.events[0], event)
@@ -630,30 +637,30 @@ def test_insert(self):
     @patch("_pyrepl.unix_eventqueue.keymap")
     def test_push_with_key_in_keymap(self, mock_keymap):
         mock_keymap.compile_keymap.return_value = {"a": "b"}
-        eq = EventQueue(sys.stdout.fileno(), "utf-8")
+        eq = EventQueue(self.file.fileno(), "utf-8")
         eq.keymap = {b"a": "b"}
         eq.push("a")
-        self.assertTrue(mock_keymap.compile_keymap.called)
+        mock_keymap.compile_keymap.assert_called()
         self.assertEqual(eq.events[0].evt, "key")
         self.assertEqual(eq.events[0].data, "b")
 
     @patch("_pyrepl.unix_eventqueue.keymap")
     def test_push_without_key_in_keymap(self, mock_keymap):
         mock_keymap.compile_keymap.return_value = {"a": "b"}
-        eq = EventQueue(sys.stdout.fileno(), "utf-8")
+        eq = EventQueue(self.file.fileno(), "utf-8")
         eq.keymap = {b"c": "d"}
         eq.push("a")
-        self.assertTrue(mock_keymap.compile_keymap.called)
+        mock_keymap.compile_keymap.assert_called()
         self.assertEqual(eq.events[0].evt, "key")
         self.assertEqual(eq.events[0].data, "a")
 
     @patch("_pyrepl.unix_eventqueue.keymap")
     def test_push_with_keymap_in_keymap(self, mock_keymap):
         mock_keymap.compile_keymap.return_value = {"a": "b"}
-        eq = EventQueue(sys.stdout.fileno(), "utf-8")
+        eq = EventQueue(self.file.fileno(), "utf-8")
         eq.keymap = {b"a": {b"b": "c"}}
         eq.push("a")
-        self.assertTrue(mock_keymap.compile_keymap.called)
+        mock_keymap.compile_keymap.assert_called()
         self.assertTrue(eq.empty())
         eq.push("b")
         self.assertEqual(eq.events[0].evt, "key")
@@ -665,10 +672,10 @@ def test_push_with_keymap_in_keymap(self, mock_keymap):
     @patch("_pyrepl.unix_eventqueue.keymap")
     def test_push_with_keymap_in_keymap_and_escape(self, mock_keymap):
         mock_keymap.compile_keymap.return_value = {"a": "b"}
-        eq = EventQueue(sys.stdout.fileno(), "utf-8")
+        eq = EventQueue(self.file.fileno(), "utf-8")
         eq.keymap = {b"a": {b"b": "c"}}
         eq.push("a")
-        self.assertTrue(mock_keymap.compile_keymap.called)
+        mock_keymap.compile_keymap.assert_called()
         self.assertTrue(eq.empty())
         eq.flush_buf()
         eq.push("\033")
@@ -679,7 +686,7 @@ def test_push_with_keymap_in_keymap_and_escape(self, mock_keymap):
         self.assertEqual(eq.events[1].data, "b")
 
     def test_push_special_key(self):
-        eq = EventQueue(sys.stdout.fileno(), "utf-8")
+        eq = EventQueue(self.file.fileno(), "utf-8")
         eq.keymap = {}
         eq.push("\x1b")
         eq.push("[")
@@ -688,7 +695,7 @@ def test_push_special_key(self):
         self.assertEqual(eq.events[0].data, "\x1b")
 
     def test_push_unrecognized_escape_sequence(self):
-        eq = EventQueue(sys.stdout.fileno(), "utf-8")
+        eq = EventQueue(self.file.fileno(), "utf-8")
         eq.keymap = {}
         eq.push("\x1b")
         eq.push("[")