[FABN-1235] Block event checkpointer fix

- Fixed issue where blockNumber in _onEvent:blockeventlistener.js is always NaN when receiving unfiltered block events Change-Id: I9088648c0b73cd7df61b4f7d49efe9c76e87b330 Signed-off-by: Liam Grace <liamgrace.896@gmail.com>
hyperledger · May 16, 2019 · 302503e · 302503e
1 parent d268065
commit 302503e
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Showing 2 changed files with 25 additions and 8 deletions.
diff --git a/fabric-network/lib/impl/event/blockeventlistener.js b/fabric-network/lib/impl/event/blockeventlistener.js
@@ -59,7 +59,12 @@ class BlockEventListener extends AbstractEventListener {
 	 * @private
 	 */
 	async _onEvent(block) {
-		const blockNumber = Number(block.number);
+		let blockNumber;
+		if (!this._filtered) {
+			blockNumber = Number(block.header.number);
+		} else {
+			blockNumber = Number(block.number);
+		}
 
 		try {
 			await this.eventCallback(null, block);

diff --git a/fabric-network/test/impl/event/blockeventlistener.js b/fabric-network/test/impl/event/blockeventlistener.js
@@ -96,31 +96,31 @@ describe('BlockEventListener', () => {
 		});
 
 		it('should call the event callback', async () => {
-			const block = {number: '10'};
+			const block = {header: {number: '10'}};
 			await blockEventListener._onEvent(block);
 			sinon.assert.calledWith(blockEventListener.eventCallback, null, block);
 			sinon.assert.notCalled(checkpointerStub.save);
 			sinon.assert.notCalled(blockEventListener.unregister);
 		});
 
 		it('should save a checkpoint', async () => {
-			const block = {number: '10'};
+			const block = {header: {number: '10'}};
 			checkpointerStub.load.returns({});
 			blockEventListener.checkpointer = checkpointerStub;
 			await blockEventListener._onEvent(block);
 			sinon.assert.calledWith(checkpointerStub.save, null, 10);
 		});
 
 		it('should unregister if registration.unregister is set', async () => {
-			const block = {number: '10'};
+			const block = {header: {number: '10'}};
 			blockEventListener._registration.unregister = true;
 			await blockEventListener._onEvent(block);
 			sinon.assert.calledWith(blockEventListener.eventCallback, null, block);
 			sinon.assert.called(blockEventListener.unregister);
 		});
 
 		it ('should not save a checkpoint if the callback fails', async () => {
-			const block = {number: '10'};
+			const block = {header: {number: '10'}};
 			blockEventListener.eventCallback.throws(new Error());
 			blockEventListener.checkpointer = checkpointerStub;
 			await blockEventListener._onEvent(block);
@@ -234,14 +234,14 @@ describe('BlockEventListener', () => {
 			blockEventListener.eventHub = eventHubStub;
 			eventHubStub.registerBlockEvent.returns({});
 			await blockEventListener.register();
-			await blockEventListener._onEvent({number: 1});
+			await blockEventListener._onEvent({header: {number: 1}});
 			const checkpoint = await checkpointer.load();
 			expect(checkpoint.blockNumber).to.equal(1);
 		});
 
-		it('should update with a new block number', async () => {
+		it('should update with a new block number (filtered)', async () => {
 			checkpointer = new InMemoryCheckpointer();
-			blockEventListener = new BlockEventListener(networkStub, 'listener', (block) => {}, {replay: true, checkpointer: {factory: () => checkpointer}});
+			blockEventListener = new BlockEventListener(networkStub, 'listener', (block) => {}, {filtered: true, replay: true, checkpointer: {factory: () => checkpointer}});
 			blockEventListener.eventHub = eventHubStub;
 			eventHubStub.registerBlockEvent.returns({});
 			await blockEventListener.register();
@@ -251,6 +251,18 @@ describe('BlockEventListener', () => {
 			expect(checkpoint.blockNumber).to.equal(2);
 		});
 
+		it('should update with a new block number (unfiltered)', async () => {
+			checkpointer = new InMemoryCheckpointer();
+			blockEventListener = new BlockEventListener(networkStub, 'listener', (block) => {}, {replay: true, checkpointer: {factory: () => checkpointer}});
+			blockEventListener.eventHub = eventHubStub;
+			eventHubStub.registerBlockEvent.returns({});
+			await blockEventListener.register();
+			await blockEventListener._onEvent({header: {number: 2}});
+			await blockEventListener._onEvent({header: {number: 1}});
+			const checkpoint = await checkpointer.load();
+			expect(checkpoint.blockNumber).to.equal(2);
+		});
+
 		it('should set the start block', async() => {
 			channelStub.queryInfo.resolves({height: '3'});
 			checkpointer = new InMemoryCheckpointer();