[3.13] gh-119306: Break up _pyrepl tests (GH-119307) (#119362)

(cherry picked from commit f49df4f486e531ff2666eb22854117c564b3de3d)

Co-authored-by: Eugene Triguba <eugenetriguba@gmail.com>

1 files changed, 74 insertions, 0 deletions

diff --git a/Lib/test/test_pyrepl/test_keymap.py b/Lib/test/test_pyrepl/test_keymap.py
new file mode 100644
index 0000000..419f164
--- /dev/null
+++ b/Lib/test/test_pyrepl/test_keymap.py
@@ -0,0 +1,74 @@
+import unittest
+
+from _pyrepl.keymap import parse_keys, compile_keymap
+
+
+class TestParseKeys(unittest.TestCase):
+    def test_single_character(self):
+        self.assertEqual(parse_keys("a"), ["a"])
+        self.assertEqual(parse_keys("b"), ["b"])
+        self.assertEqual(parse_keys("1"), ["1"])
+
+    def test_escape_sequences(self):
+        self.assertEqual(parse_keys("\\n"), ["\n"])
+        self.assertEqual(parse_keys("\\t"), ["\t"])
+        self.assertEqual(parse_keys("\\\\"), ["\\"])
+        self.assertEqual(parse_keys("\\'"), ["'"])
+        self.assertEqual(parse_keys('\\"'), ['"'])
+
+    def test_control_sequences(self):
+        self.assertEqual(parse_keys("\\C-a"), ["\x01"])
+        self.assertEqual(parse_keys("\\C-b"), ["\x02"])
+        self.assertEqual(parse_keys("\\C-c"), ["\x03"])
+
+    def test_meta_sequences(self):
+        self.assertEqual(parse_keys("\\M-a"), ["\033", "a"])
+        self.assertEqual(parse_keys("\\M-b"), ["\033", "b"])
+        self.assertEqual(parse_keys("\\M-c"), ["\033", "c"])
+
+    def test_keynames(self):
+        self.assertEqual(parse_keys("\\<up>"), ["up"])
+        self.assertEqual(parse_keys("\\<down>"), ["down"])
+        self.assertEqual(parse_keys("\\<left>"), ["left"])
+        self.assertEqual(parse_keys("\\<right>"), ["right"])
+
+    def test_combinations(self):
+        self.assertEqual(parse_keys("\\C-a\\n\\<up>"), ["\x01", "\n", "up"])
+        self.assertEqual(parse_keys("\\M-a\\t\\<down>"), ["\033", "a", "\t", "down"])
+
+
+class TestCompileKeymap(unittest.TestCase):
+    def test_empty_keymap(self):
+        keymap = {}
+        result = compile_keymap(keymap)
+        self.assertEqual(result, {})
+
+    def test_single_keymap(self):
+        keymap = {b"a": "action"}
+        result = compile_keymap(keymap)
+        self.assertEqual(result, {b"a": "action"})
+
+    def test_nested_keymap(self):
+        keymap = {b"a": {b"b": "action"}}
+        result = compile_keymap(keymap)
+        self.assertEqual(result, {b"a": {b"b": "action"}})
+
+    def test_empty_value(self):
+        keymap = {b"a": {b"": "action"}}
+        result = compile_keymap(keymap)
+        self.assertEqual(result, {b"a": {b"": "action"}})
+
+    def test_multiple_empty_values(self):
+        keymap = {b"a": {b"": "action1", b"b": "action2"}}
+        result = compile_keymap(keymap)
+        self.assertEqual(result, {b"a": {b"": "action1", b"b": "action2"}})
+
+    def test_multiple_keymaps(self):
+        keymap = {b"a": {b"b": "action1", b"c": "action2"}}
+        result = compile_keymap(keymap)
+        self.assertEqual(result, {b"a": {b"b": "action1", b"c": "action2"}})
+
+    def test_nested_multiple_keymaps(self):
+        keymap = {b"a": {b"b": {b"c": "action"}}}
+        result = compile_keymap(keymap)
+        self.assertEqual(result, {b"a": {b"b": {b"c": "action"}}})