test(cz-commit): add tests for multi-line body input

Author: axkoro

tests/test_cz_conventional_commits.py

@@ -1,4 +1,5 @@
 import pytest
+from prompt_toolkit.key_binding import KeyBindings
 
 from commitizen.cz.conventional_commits.conventional_commits import (
     ConventionalCommitsCz,
@@ -173,3 +174,10 @@ def test_info(config):
     conventional_commits = ConventionalCommitsCz(config)
     info = conventional_commits.info()
     assert isinstance(info, str)
+
+
+def test_body_question_is_multiline(config):
+    cz = ConventionalCommitsCz(config)
+    body_question = next(q for q in cz.questions() if q["name"] == "body")
+    assert body_question["multiline"] is True
+    assert isinstance(body_question["key_bindings"], KeyBindings)

tests/test_cz_utils.py

@@ -4,6 +4,34 @@
 from commitizen.cz import exceptions, utils
 
 
+def test_multiline_key_bindings_enter_submits_on_empty(mocker: MockFixture):
+    kb = utils.get_multiline_key_bindings()
+    handler = kb.get_bindings_for_keys(("enter",))[0].handler
+
+    buff = mocker.MagicMock()
+    buff.text = ""
+    event = mocker.MagicMock()
+    event.app.current_buffer = buff
+
+    handler(event)
+    buff.validate_and_handle.assert_called_once()
+    buff.insert_text.assert_not_called()
+
+
+def test_multiline_key_bindings_enter_inserts_newline(mocker: MockFixture):
+    kb = utils.get_multiline_key_bindings()
+    handler = kb.get_bindings_for_keys(("enter",))[0].handler
+
+    buff = mocker.MagicMock()
+    buff.text = "some content"
+    event = mocker.MagicMock()
+    event.app.current_buffer = buff
+
+    handler(event)
+    buff.insert_text.assert_called_once_with("\n")
+    buff.validate_and_handle.assert_not_called()
+
+
 def test_required_validator():
     assert utils.required_validator("test") == "test"