Populate the seal in OpenBlock for external blocks

Author: Joonmo Yang

core/src/block.rs

@@ -213,6 +213,7 @@ impl<'x> OpenBlock<'x> {
         self.block.header.set_author(*header.author());
         self.block.header.set_transactions_root(*header.transactions_root());
         self.block.header.set_extra_data(header.extra_data().clone());
+        self.block.header.set_seal(header.seal().to_vec());
     }
 
     /// Turn this into a `ClosedBlock`.

test/src/e2e.dynval/dv.oneblockoneterm.test.ts

@@ -23,7 +23,9 @@ import { withNodes } from "./setup";
 
 chai.use(chaiAsPromised);
 
-const alice = originalDynValidators[0];
+// Verifying external blocks take different code path with internal blocks.
+// We need both a proposer and a verifier to test them.
+const [alice, bob] = originalDynValidators;
 
 describe("one block one term test", function() {
     const promiseExpect = new PromiseExpect();
@@ -34,7 +36,10 @@ describe("one block one term test", function() {
         overrideParams: {
             termSeconds: 1
         },
-        validators: [{ signer: alice, delegation: 5000, deposit: 100000 }]
+        validators: [
+            { signer: alice, delegation: 5000, deposit: 100000 },
+            { signer: bob }
+        ]
     });
 
     it("Alice should success creating terms", async function() {