Fix #1178 text type hint in LinkButtonElement does not accept PlainTextObject/dict (#1183)

Author: seratch

slack_sdk/models/blocks/block_elements.py

@@ -325,7 +325,7 @@ class LinkButtonElement(ButtonElement):
     def __init__(
         self,
         *,
-        text: str,
+        text: Union[str, dict, PlainTextObject],
         url: str,
         action_id: Optional[str] = None,
         style: Optional[str] = None,

tests/slack_sdk/models/test_elements.py

@@ -26,6 +26,7 @@
     Option,
     InputInteractiveElement,
     InteractiveElement,
+    PlainTextObject,
 )
 from . import STRING_3001_CHARS, STRING_301_CHARS
 
@@ -209,6 +210,23 @@ def test_json(self):
             button.to_dict(),
         )
 
+    # https://github.com/slackapi/python-slack-sdk/issues/1178
+    def test_text_patterns_issue_1178(self):
+        button = LinkButtonElement(
+            action_id="test",
+            text=PlainTextObject(text="button text"),
+            url="http://slack.com",
+        )
+        self.assertDictEqual(
+            {
+                "text": {"text": "button text", "type": "plain_text"},
+                "url": "http://slack.com",
+                "type": "button",
+                "action_id": button.action_id,
+            },
+            button.to_dict(),
+        )
+
     def test_url_length(self):
         with self.assertRaises(SlackObjectFormationError):
             LinkButtonElement(text="Button", url=STRING_3001_CHARS).to_dict()