Add endLine and endColumn keys to JSONReporter

ChangeLog

@@ -39,6 +39,10 @@ Release date: TBA
 
   Closes #5437
 
+* Add ``endLine`` and ``endColumn`` keys to output of ``JSONReporter``.
+
+  Closes #5380
+
 * Fixed handling of Google-style parameter specifications where descriptions
   are on the line following the parameter name. These were generating
   false positives for ``missing-param-doc``.

doc/whatsnew/2.12.rst

@@ -246,3 +246,7 @@ Other Changes
   ``pylint/testutil/`` are still unstable and might be modified in the near future.
 
   Closes #4412 #5287
+
+* Add ``endLine`` and ``endColumn`` keys to output of ``JSONReporter``.
+
+  Closes #5380

pylint/reporters/json_reporter.py

@@ -40,6 +40,8 @@ def display_messages(self, layout: Optional["Section"]) -> None:
                 "obj": msg.obj,
                 "line": msg.line,
                 "column": msg.column,
+                "endLine": msg.end_line,
+                "endColumn": msg.end_column,
                 "path": msg.path,
                 "symbol": msg.symbol,
                 "message": msg.msg or "",

tests/unittest_reporters_json.py

@@ -25,29 +25,67 @@
 from pylint.reporters.ureports.nodes import EvaluationSection
 
 expected_score_message = "Expected score message"
-expected_result = [
-    [
-        ("column", 0),
-        ("line", 1),
-        ("message", "Line too long (1/2)"),
-        ("message-id", "C0301"),
-        ("module", "0123"),
-        ("obj", ""),
-        ("path", "0123"),
-        ("symbol", "line-too-long"),
-        ("type", "convention"),
-    ]
-]
 
 
 def test_simple_json_output_no_score() -> None:
-    report = get_linter_result(score=False)
+    """Test JSON reporter with no score"""
+    message = {
+        "msg": "line-too-long",
+        "line": 1,
+        "args": (1, 2),
+        "end_line": None,
+        "end_column": None,
+    }
+    expected = [
+        {
+            "type": "convention",
+            "module": "0123",
+            "obj": "",
+            "line": 1,
+            "column": 0,
+            "endLine": None,
+            "endColumn": None,
+            "path": "0123",
+            "symbol": "line-too-long",
+            "message": "Line too long (1/2)",
+            "message-id": "C0301",
+        }
+    ]
+    report = get_linter_result(score=False, message=message)
+    assert len(report) == 1
+    assert json.dumps(report) == json.dumps(expected)
+
+
+def test_simple_json_output_no_score_with_end_line() -> None:
+    """Test JSON reporter with no score with end_line and end_column"""
+    message = {
+        "msg": "line-too-long",
+        "line": 1,
+        "args": (1, 2),
+        "end_line": 1,
+        "end_column": 4,
+    }
+    expected = [
+        {
+            "type": "convention",
+            "module": "0123",
+            "obj": "",
+            "line": 1,
+            "column": 0,
+            "endLine": 1,
+            "endColumn": 4,
+            "path": "0123",
+            "symbol": "line-too-long",
+            "message": "Line too long (1/2)",
+            "message-id": "C0301",
+        }
+    ]
+    report = get_linter_result(score=False, message=message)
     assert len(report) == 1
-    report_result = [sorted(report[0].items(), key=lambda item: item[0])]
-    assert report_result == expected_result
+    assert json.dumps(report) == json.dumps(expected)
 
 
-def get_linter_result(score: bool) -> List[Dict[str, Any]]:
+def get_linter_result(score: bool, message: Dict[str, Any]) -> List[Dict[str, Any]]:
     output = StringIO()
     reporter = JSONReporter(output)
     linter = PyLinter(reporter=reporter)
@@ -56,7 +94,13 @@ def get_linter_result(score: bool) -> List[Dict[str, Any]]:
     linter.config.score = score
     linter.open()
     linter.set_current_module("0123")
-    linter.add_message("line-too-long", line=1, args=(1, 2))
+    linter.add_message(
+        message["msg"],
+        line=message["line"],
+        args=message["args"],
+        end_lineno=message["end_line"],
+        end_col_offset=message["end_column"],
+    )
     # we call those methods because we didn't actually run the checkers
     if score:
         reporter.display_reports(EvaluationSection(expected_score_message))

tests/unittest_reporting.py

@@ -219,6 +219,8 @@ def test_multi_format_output(tmp_path):
             '        "obj": "",\n'
             '        "line": 1,\n'
             '        "column": 0,\n'
+            '        "endLine": null,\n'
+            '        "endColumn": null,\n'
             f'        "path": {escaped_source_file},\n'
             '        "symbol": "missing-module-docstring",\n'
             '        "message": "Missing module docstring",\n'
@@ -230,6 +232,8 @@ def test_multi_format_output(tmp_path):
             '        "obj": "",\n'
             '        "line": 1,\n'
             '        "column": 0,\n'
+            '        "endLine": null,\n'
+            '        "endColumn": null,\n'
             f'        "path": {escaped_source_file},\n'
             '        "symbol": "line-too-long",\n'
             '        "message": "Line too long (1/2)",\n'