1 files changed, 85 insertions, 0 deletions
diff --git a/pylint/testutils/reporter_for_tests.py b/pylint/testutils/reporter_for_tests.py
new file mode 100644
index 000000000..480f1ed2d
--- /dev/null
+++ b/pylint/testutils/reporter_for_tests.py
@@ -0,0 +1,85 @@
+# Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+# For details: https://github.com/PyCQA/pylint/blob/main/LICENSE
+
+from io import StringIO
+from os import getcwd, linesep, sep
+from typing import TYPE_CHECKING, Dict, List, Optional
+
+from pylint import interfaces
+from pylint.message import Message
+from pylint.reporters import BaseReporter
+
+if TYPE_CHECKING:
+    from pylint.reporters.ureports.nodes import Section
+
+
+class GenericTestReporter(BaseReporter):
+    """reporter storing plain text messages"""
+
+    __implements__ = interfaces.IReporter
+
+    def __init__(
+        self,
+    ):  # pylint: disable=super-init-not-called # See https://github.com/PyCQA/pylint/issues/4941
+        self.reset()
+
+    def reset(self):
+        self.message_ids: Dict = {}
+        self.out = StringIO()
+        self.path_strip_prefix: str = getcwd() + sep
+        self.messages: List[str] = []
+
+    def handle_message(self, msg: Message) -> None:
+        """manage message of different type and in the context of path"""
+        obj = msg.obj
+        line = msg.line
+        msg_id = msg.msg_id
+        str_message: str = msg.msg
+        self.message_ids[msg_id] = 1
+        if obj:
+            obj = f":{obj}"
+        sigle = msg_id[0]
+        if linesep != "\n":
+            # 2to3 writes os.linesep instead of using
+            # the previously used line separators
+            str_message = str_message.replace("\r\n", "\n")
+        self.messages.append(f"{sigle}:{line:>3}{obj}: {str_message}")
+
+    def finalize(self):
+        self.messages.sort()
+        for msg in self.messages:
+            print(msg, file=self.out)
+        result = self.out.getvalue()
+        self.reset()
+        return result
+
+    # pylint: disable=unused-argument
+    def on_set_current_module(self, module: str, filepath: Optional[str]) -> None:
+        pass
+
+    # pylint: enable=unused-argument
+
+    def display_reports(self, layout: "Section") -> None:
+        """ignore layouts"""
+
+    def _display(self, layout: "Section") -> None:
+        pass
+
+
+class MinimalTestReporter(BaseReporter):
+    def on_set_current_module(self, module: str, filepath: Optional[str]) -> None:
+        self.messages = []
+
+    def _display(self, layout: "Section") -> None:
+        pass
+
+
+class FunctionalTestReporter(BaseReporter):
+    def on_set_current_module(self, module: str, filepath: Optional[str]) -> None:
+        self.messages = []
+
+    def display_reports(self, layout: "Section") -> None:
+        """Ignore layouts and don't call self._display()."""
+
+    def _display(self, layout: "Section") -> None:
+        pass