itest: assert multiverse roots

Author: guggero

itest/universe_test.go

@@ -261,6 +261,35 @@ func testUniverseSync(t *harnessTest) {
 	require.True(
 		t.t, AssertUniverseRootsEqual(universeRoots, universeRootsBob),
 	)
+
+	// Test the multiverse root is equal for both nodes.
+	multiverseRootAlice, err := t.tapd.MultiverseRoot(
+		ctxt, &unirpc.MultiverseRootRequest{
+			ProofType: unirpc.ProofType_PROOF_TYPE_ISSUANCE,
+		},
+	)
+	require.NoError(t.t, err)
+
+	// For Bob we query with the actual IDs of the universe we are aware of.
+	multiverseRootBob, err := bob.MultiverseRoot(
+		ctxt, &unirpc.MultiverseRootRequest{
+			ProofType:   unirpc.ProofType_PROOF_TYPE_ISSUANCE,
+			SpecificIds: uniIDs,
+		},
+	)
+	require.NoError(t.t, err)
+
+	require.Equal(
+		t.t, multiverseRootAlice.MultiverseRoot.RootHash,
+		multiverseRootBob.MultiverseRoot.RootHash,
+	)
+
+	// We also expect the proof's root hash to be equal to the actual
+	// multiverse root.
+	require.Equal(
+		t.t, firstAssetUniProof.MultiverseRoot.RootHash,
+		multiverseRootBob.MultiverseRoot.RootHash,
+	)
 }
 
 // unmarshalMerkleSumNode un-marshals a protobuf MerkleSumNode.