refactor tests

tests/test_workflow_render.py

@@ -59,32 +59,53 @@ def test_agent_and_final_comments_preserve_protocol_marker() -> None:
     )
 
 
-def test_pull_request_body_and_result_comment_render_validation() -> None:
-    result = AgentResult(
-        summary_markdown="Implemented the widget fix.",
-        tests=["pytest: passed", "ruff: passed"],
-    )
-
-    assert pull_request_body(17, result) == (
-        "Closes #17\n\n"
-        "## Implementation\n\nImplemented the widget fix.\n\n"
-        "## Validation\n\n- pytest: passed\n- ruff: passed\n\n"
-        "_Created by Agent CI._"
-    )
-    assert result_comment(result, sha="abc123") == (
-        "## Agent result\n\nImplemented the widget fix.\n\n"
-        "## Validation\n\n- pytest: passed\n- ruff: passed\n\n"
-        "Commit: `abc123`"
-    )
-
-
-def test_renderers_report_missing_validation() -> None:
-    result = AgentResult(summary_markdown="Applied the change.", tests=[])
-
-    assert "## Validation\n\n- Not reported" in pull_request_body(2, result)
-    assert result_comment(result) == (
-        "## Agent result\n\nApplied the change.\n\n## Validation\n\n- Not reported"
-    )
+@pytest.mark.parametrize(
+    ("issue_number", "result", "sha", "expected_body", "expected_comment"),
+    [
+        pytest.param(
+            17,
+            AgentResult(
+                summary_markdown="Implemented the widget fix.",
+                tests=["pytest: passed", "ruff: passed"],
+            ),
+            "abc123",
+            (
+                "Closes #17\n\n"
+                "## Implementation\n\nImplemented the widget fix.\n\n"
+                "## Validation\n\n- pytest: passed\n- ruff: passed\n\n"
+                "_Created by Agent CI._"
+            ),
+            (
+                "## Agent result\n\nImplemented the widget fix.\n\n"
+                "## Validation\n\n- pytest: passed\n- ruff: passed\n\n"
+                "Commit: `abc123`"
+            ),
+            id="reported-validation",
+        ),
+        pytest.param(
+            2,
+            AgentResult(summary_markdown="Applied the change.", tests=[]),
+            None,
+            (
+                "Closes #2\n\n"
+                "## Implementation\n\nApplied the change.\n\n"
+                "## Validation\n\n- Not reported\n\n"
+                "_Created by Agent CI._"
+            ),
+            "## Agent result\n\nApplied the change.\n\n## Validation\n\n- Not reported",
+            id="missing-validation",
+        ),
+    ],
+)
+def test_result_renderers_render_reported_and_missing_validation(
+    issue_number: int,
+    result: AgentResult,
+    sha: str | None,
+    expected_body: str,
+    expected_comment: str,
+) -> None:
+    assert pull_request_body(issue_number, result) == expected_body
+    assert result_comment(result, sha=sha) == expected_comment
 
 
 @pytest.mark.parametrize(