test(integrations): restore the kiro prompt as bytes in the upgrade test

test_upgrade_replaces_dotted_kiro_prompts restored the edited prompt with write_text(), which writes CRLF on Windows. Integration files are written as LF bytes, so the restored file no longer matched its manifest hash and the second upgrade was still blocked as modified (pytest on windows-latest). Read and write the prompt as bytes. Refs #4797 Assisted-by: Claude Code (model: claude-opus-5-5, autonomous)
kartsan03 · Sep 30, 2026 · Sep 30, 2026 · Sep 30, 2026 · Sep 30, 2026 · Sep 30, 2026
commit cb898ce1c3d9340b46a515eb4b7ba2924e169741
@@ -312,15 +312,17 @@ def test_upgrade_replaces_dotted_kiro_prompts(self, tmp_path, monkeypatch):
             project = _init_project(tmp_path, "kiro-cli")
         prompts = project / ".kiro" / "prompts"
         dotted_plan = prompts / "speckit.plan.md"
-        original = dotted_plan.read_text(encoding="utf-8")
+        # Bytes, not text: write_text() would turn "\n" into "\r\n" on
+        # Windows, so the restored file would no longer match the manifest.
+        original = dotted_plan.read_bytes()
 
-        dotted_plan.write_text(original + "my note\n", encoding="utf-8")
+        dotted_plan.write_bytes(original + b"my note\n")
         blocked = _run_in_project(project, ["integration", "upgrade", "kiro-cli"])
         assert blocked.exit_code != 0
         assert "speckit.plan.md" in blocked.output
-        assert dotted_plan.read_text(encoding="utf-8") == original + "my note\n"
+        assert dotted_plan.read_bytes() == original + b"my note\n"
 
-        dotted_plan.write_text(original, encoding="utf-8")
+        dotted_plan.write_bytes(original)
         result = _run_in_project(project, ["integration", "upgrade", "kiro-cli"])
         assert result.exit_code == 0, result.output
         assert sorted(prompts.glob("speckit.*.md")) == []