Add tests for sync and snapshot functionality

src/tests/test_post_sync_messages.py

@@ -29,3 +29,24 @@ def test_handle_post_failure(capsys):
     main.handle_post_to_nostr(pm)
     out = capsys.readouterr().out
     assert "❌ Sync failed…" in out
+
+
+def test_handle_post_prints_all_ids(capsys):
+    pm = SimpleNamespace(
+        sync_vault=lambda alt_summary=None: {
+            "manifest_id": "m1",
+            "chunk_ids": ["c1", "c2"],
+            "delta_ids": ["d1", "d2"],
+        }
+    )
+    main.handle_post_to_nostr(pm)
+    out_lines = capsys.readouterr().out.splitlines()
+    expected = [
+        "  manifest: m1",
+        "  chunk: c1",
+        "  chunk: c2",
+        "  delta: d1",
+        "  delta: d2",
+    ]
+    for line in expected:
+        assert any(line in ol for ol in out_lines)