1 files changed, 50 insertions, 0 deletions
diff --git a/pylint/testutils/output_line.py b/pylint/testutils/output_line.py
new file mode 100644
index 000000000..8bf5b7124
--- /dev/null
+++ b/pylint/testutils/output_line.py
@@ -0,0 +1,50 @@
+# Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+# For details: https://github.com/PyCQA/pylint/blob/master/COPYING
+
+import collections
+
+from pylint import interfaces
+
+
+class Message(
+    collections.namedtuple("Message", ["msg_id", "line", "node", "args", "confidence"])
+):
+    def __new__(cls, msg_id, line=None, node=None, args=None, confidence=None):
+        return tuple.__new__(cls, (msg_id, line, node, args, confidence))
+
+    def __eq__(self, other):
+        if isinstance(other, Message):
+            if self.confidence and other.confidence:
+                return super().__eq__(other)
+            return self[:-1] == other[:-1]
+        return NotImplemented  # pragma: no cover
+
+    __hash__ = None
+
+
+class OutputLine(
+    collections.namedtuple(
+        "OutputLine", ["symbol", "lineno", "object", "msg", "confidence"]
+    )
+):
+    @classmethod
+    def from_msg(cls, msg):
+        return cls(
+            msg.symbol,
+            msg.line,
+            msg.obj or "",
+            msg.msg.replace("\r\n", "\n"),
+            msg.confidence.name
+            if msg.confidence != interfaces.UNDEFINED
+            else interfaces.HIGH.name,
+        )
+
+    @classmethod
+    def from_csv(cls, row):
+        confidence = row[4] if len(row) == 5 else interfaces.HIGH.name
+        return cls(row[0], int(row[1]), row[2], row[3], confidence)
+
+    def to_csv(self):
+        if self.confidence == interfaces.HIGH.name:
+            return self[:-1]
+        return self