gh-119306: Break up _pyrepl tests (#119307)

Lib/test/test_pyrepl/test_unix_eventqueue.py

@@ -0,0 +1,113 @@
+import tempfile
+import unittest
+from unittest.mock import patch
+
+from _pyrepl.console import Event
+from _pyrepl.unix_eventqueue import EventQueue
+
+
+@patch("_pyrepl.curses.tigetstr", lambda x: b"")
+class TestUnivEventQueue(unittest.TestCase):
+    def setUp(self):
+        self.file = tempfile.TemporaryFile()
+
+    def tearDown(self) -> None:
+        self.file.close()
+
+    def test_get(self):
+        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(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(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(self.file.fileno(), "utf-8")
+        event = Event("key", "a", b"a")
+        eq.insert(event)
+        self.assertEqual(eq.events[0], event)
+
+    @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(self.file.fileno(), "utf-8")
+        eq.keymap = {b"a": "b"}
+        eq.push("a")
+        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(self.file.fileno(), "utf-8")
+        eq.keymap = {b"c": "d"}
+        eq.push("a")
+        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(self.file.fileno(), "utf-8")
+        eq.keymap = {b"a": {b"b": "c"}}
+        eq.push("a")
+        mock_keymap.compile_keymap.assert_called()
+        self.assertTrue(eq.empty())
+        eq.push("b")
+        self.assertEqual(eq.events[0].evt, "key")
+        self.assertEqual(eq.events[0].data, "c")
+        eq.push("d")
+        self.assertEqual(eq.events[1].evt, "key")
+        self.assertEqual(eq.events[1].data, "d")
+
+    @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(self.file.fileno(), "utf-8")
+        eq.keymap = {b"a": {b"b": "c"}}
+        eq.push("a")
+        mock_keymap.compile_keymap.assert_called()
+        self.assertTrue(eq.empty())
+        eq.flush_buf()
+        eq.push("\033")
+        self.assertEqual(eq.events[0].evt, "key")
+        self.assertEqual(eq.events[0].data, "\033")
+        eq.push("b")
+        self.assertEqual(eq.events[1].evt, "key")
+        self.assertEqual(eq.events[1].data, "b")
+
+    def test_push_special_key(self):
+        eq = EventQueue(self.file.fileno(), "utf-8")
+        eq.keymap = {}
+        eq.push("\x1b")
+        eq.push("[")
+        eq.push("A")
+        self.assertEqual(eq.events[0].evt, "key")
+        self.assertEqual(eq.events[0].data, "\x1b")
+
+    def test_push_unrecognized_escape_sequence(self):
+        eq = EventQueue(self.file.fileno(), "utf-8")
+        eq.keymap = {}
+        eq.push("\x1b")
+        eq.push("[")
+        eq.push("Z")
+        self.assertEqual(len(eq.events), 3)
+        self.assertEqual(eq.events[0].evt, "key")
+        self.assertEqual(eq.events[0].data, "\x1b")
+        self.assertEqual(eq.events[1].evt, "key")
+        self.assertEqual(eq.events[1].data, "[")
+        self.assertEqual(eq.events[2].evt, "key")
+        self.assertEqual(eq.events[2].data, "Z")