add to payload to allow error parsing on TS (#21483)

partial fix for #21476,
make sure error display correctly.


two part fix:
fix "errors" to "error" in unittest payload to align with naming
everywhere else
add "result" and "test" to payload in run and discovery respectively
even on error to havae resultResolver handle correctly.

pythonFiles/tests/unittestadapter/test_discovery.py

@@ -132,7 +132,7 @@ def test_simple_discovery() -> None:
 
     assert actual["status"] == "success"
     assert is_same_tree(actual.get("tests"), expected)
-    assert "errors" not in actual
+    assert "error" not in actual
 
 
 def test_empty_discovery() -> None:
@@ -146,8 +146,8 @@ def test_empty_discovery() -> None:
     actual = discover_tests(start_dir, pattern, None, uuid)
 
     assert actual["status"] == "success"
-    assert "tests" not in actual
-    assert "errors" not in actual
+    assert "tests" in actual
+    assert "error" not in actual
 
 
 def test_error_discovery() -> None:
@@ -213,4 +213,4 @@ def test_error_discovery() -> None:
 
     assert actual["status"] == "error"
     assert is_same_tree(expected, actual.get("tests"))
-    assert len(actual.get("errors", [])) == 1
+    assert len(actual.get("error", [])) == 1

pythonFiles/tests/unittestadapter/test_execution.py

@@ -65,7 +65,7 @@ def test_no_ids_run() -> None:
     assert all(item in actual for item in ("cwd", "status"))
     assert actual["status"] == "success"
     assert actual["cwd"] == os.fspath(TEST_DATA_PATH)
-    if "result" in actual:
+    if actual["result"] is not None:
         assert len(actual["result"]) == 0
     else:
         raise AssertionError("actual['result'] is None")
@@ -85,7 +85,7 @@ def test_single_ids_run() -> None:
     assert all(item in actual for item in ("cwd", "status"))
     assert actual["status"] == "success"
     assert actual["cwd"] == os.fspath(TEST_DATA_PATH)
-    assert "result" in actual
+    assert actual["result"] is not None
     result = actual["result"]
     assert len(result) == 1
     assert id in result
@@ -117,7 +117,7 @@ def test_subtest_run() -> None:
     assert all(item in actual for item in ("cwd", "status"))
     assert actual["status"] == "success"
     assert actual["cwd"] == os.fspath(TEST_DATA_PATH)
-    assert "result" in actual
+    assert actual["result"] is not None
     result = actual["result"]
     assert len(result) == 6
     for id in subtests_ids:
@@ -205,7 +205,7 @@ def test_multiple_ids_run(test_ids, pattern, cwd, expected_outcome) -> None:
     assert all(item in actual for item in ("cwd", "status"))
     assert actual["status"] == "success"
     assert actual["cwd"] == cwd
-    assert "result" in actual
+    assert actual["result"] is not None
     result = actual["result"]
     assert len(result) == len(test_ids)
     for test_id in test_ids:
@@ -230,7 +230,7 @@ def test_failed_tests():
     assert all(item in actual for item in ("cwd", "status"))
     assert actual["status"] == "success"
     assert actual["cwd"] == os.fspath(TEST_DATA_PATH)
-    assert "result" in actual
+    assert actual["result"] is not None
     result = actual["result"]
     assert len(result) == len(test_ids)
     for test_id in test_ids:
@@ -255,7 +255,7 @@ def test_unknown_id():
     assert all(item in actual for item in ("cwd", "status"))
     assert actual["status"] == "success"
     assert actual["cwd"] == os.fspath(TEST_DATA_PATH)
-    assert "result" in actual
+    assert actual["result"] is not None
     result = actual["result"]
     assert len(result) == len(test_ids)
     assert "unittest.loader._FailedTest.unknown_id" in result

pythonFiles/unittestadapter/discovery.py

@@ -53,8 +53,8 @@ def parse_discovery_cli_args(args: List[str]) -> Tuple[int, Union[str, None]]:
 class PayloadDict(TypedDict):
     cwd: str
     status: Literal["success", "error"]
-    tests: NotRequired[TestNode]
-    errors: NotRequired[List[str]]
+    tests: Optional[TestNode]
+    error: NotRequired[List[str]]
 
 
 def discover_tests(
@@ -68,7 +68,7 @@ def discover_tests(
     - uuid: UUID sent by the caller of the Python script, that needs to be sent back as an integrity check;
     - status: Test discovery status, can be "success" or "error";
     - tests: Discoverered tests if any, not present otherwise. Note that the status can be "error" but the payload can still contain tests;
-    - errors: Discovery errors if any, not present otherwise.
+    - error: Discovery error if any, not present otherwise.
 
     Payload format for a successful discovery:
     {
@@ -86,30 +86,31 @@ def discover_tests(
     Payload format when there are errors:
     {
         "cwd": <test discovery directory>
-        "errors": [list of errors]
+        "": [list of errors]
         "status": "error",
     }
     """
     cwd = os.path.abspath(start_dir)
-    payload: PayloadDict = {"cwd": cwd, "status": "success"}
+    payload: PayloadDict = {"cwd": cwd, "status": "success", "tests": None}
     tests = None
-    errors: List[str] = []
+    error: List[str] = []
 
     try:
         loader = unittest.TestLoader()
         suite = loader.discover(start_dir, pattern, top_level_dir)
 
-        tests, errors = build_test_tree(suite, cwd)  # test tree built succesfully here.
+        tests, error = build_test_tree(suite, cwd)  # test tree built succesfully here.
 
     except Exception:
-        errors.append(traceback.format_exc())
+        error.append(traceback.format_exc())
 
-    if tests is not None:
-        payload["tests"] = tests
+    # Still include the tests in the payload even if there are errors so that the TS
+    # side can determine if it is from run or discovery.
+    payload["tests"] = tests if tests is not None else None
 
-    if len(errors):
+    if len(error):
         payload["status"] = "error"
-        payload["errors"] = errors
+        payload["error"] = error
 
     return payload
 

pythonFiles/unittestadapter/execution.py

@@ -165,7 +165,7 @@ class TestExecutionStatus(str, enum.Enum):
 class PayloadDict(TypedDict):
     cwd: str
     status: TestExecutionStatus
-    result: NotRequired[TestResultTypeAlias]
+    result: Optional[TestResultTypeAlias]
     not_found: NotRequired[List[str]]
     error: NotRequired[str]
 
@@ -185,7 +185,7 @@ def run_tests(
     cwd = os.path.abspath(start_dir)
     status = TestExecutionStatus.error
     error = None
-    payload: PayloadDict = {"cwd": cwd, "status": status}
+    payload: PayloadDict = {"cwd": cwd, "status": status, "result": None}
 
     try:
         # If it's a file, split path and file name.
@@ -312,4 +312,5 @@ def send_run_data(raw_data, port, uuid):
             "cwd": cwd,
             "status": status,
             "error": "No test ids received from buffer",
+            "result": None,
         }

pythonFiles/unittestadapter/utils.py

@@ -151,14 +151,14 @@ def build_test_tree(
         "id_": <test_directory path>
     }
     """
-    errors = []
+    error = []
     directory_path = pathlib.PurePath(test_directory)
     root = build_test_node(test_directory, directory_path.name, TestNodeTypeEnum.folder)
 
     for test_case in get_test_case(suite):
         test_id = test_case.id()
         if test_id.startswith("unittest.loader._FailedTest"):
-            errors.append(str(test_case._exception))  # type: ignore
+            error.append(str(test_case._exception))  # type: ignore
         else:
             # Get the static test path components: filename, class name and function name.
             components = test_id.split(".")
@@ -206,7 +206,7 @@ def build_test_tree(
     if not root["children"]:
         root = None
 
-    return root, errors
+    return root, error
 
 
 def parse_unittest_args(args: List[str]) -> Tuple[str, str, Union[str, None]]: