diff --git a/tests/unit/torngit/test_github_comments.py b/tests/unit/torngit/test_github_comments.py
new file mode 100644
index 00000000..dbffceaf
--- /dev/null
+++ b/tests/unit/torngit/test_github_comments.py
@@ -0,0 +1,33 @@
+import pytest
+from unittest.mock import AsyncMock, MagicMock
+from shared.torngit.github import build_comment_request_body
+
+class TestGithubComments:
+    @pytest.mark.asyncio
+    async def test_build_comment_request_body_with_generate_tests_action(self):
+        # Arrange
+        comment = "Test comment"
+        bot_name = "codecov-bot"
+        is_bot_comment = True
+        is_pull = True
+        is_analysis_requested = True
+        has_commit_data = True
+        include_button = True
+        comment_header = "Comment header"
+        comment_footer = "Comment footer"
+        repo = MagicMock()
+
+        # Act
+        result = await build_comment_request_body(
+            comment, bot_name, is_bot_comment, is_pull, is_analysis_requested,
+            has_commit_data, include_button, comment_header, comment_footer, repo
+        )
+
+        # Assert
+        assert "actions" in result
+        assert len(result["actions"]) == 1
+        action = result["actions"][0]
+        assert action["name"] == "Generate Tests"
+        assert action["type"] == "copilot-chat"
+        assert action["prompt"] == f"@{bot_name} generate tests for PR"
+        assert result["body"] == f"{comment_header}\n{comment}\n{comment_footer}"