Fix additional file sync error with no remote stored hash

Follow-up to c9694e93b0

chrome/content/zotero/xpcom/storage/zfs.js

@@ -412,6 +412,7 @@ Zotero.Sync.Storage.Mode.ZFS.prototype = {
 				}
 				delete headers["If-Match"];
 				headers["If-None-Match"] = "*";
+				storedHash = null;
 				Zotero.debug("Retrying with If-None-Match");
 			}
 			else {
@@ -728,7 +729,8 @@ Zotero.Sync.Storage.Mode.ZFS.prototype = {
 					successCodes: [204],
 					requestObserver: function (xmlhttp) {
 						request.setChannel(xmlhttp.channel);
-					}
+					},
+					debug: true
 				}
 			);
 		}

test/tests/zfsTest.js

@@ -670,6 +670,90 @@ describe("Zotero.Sync.Storage.Mode.ZFS", function () {
 			assert.equal(item.attachmentSyncedHash, hash);
 			assert.equal(item.version, newVersion);
 		})
+		
+		
+		it("should retry with If-None-Match on 412 with missing remote hash", function* () {
+			var { engine, client, caller } = yield setup();
+			var zfs = new Zotero.Sync.Storage.Mode.ZFS({
+				apiClient: client
+			})
+			
+			var file = getTestDataDirectory();
+			file.append('test.png');
+			var item = yield Zotero.Attachments.importFromFile({ file });
+			item.version = 5;
+			item.synced = true;
+			item.attachmentSyncedModificationTime = Date.now();
+			item.attachmentSyncedHash = 'bd4c33e03798a7e8bc0b46f8bda74fac'
+			yield item.saveTx();
+			
+			var contentType = 'image/png';
+			var prefix = Zotero.Utilities.randomString();
+			var suffix = Zotero.Utilities.randomString();
+			var uploadKey = Zotero.Utilities.randomString(32, 'abcdef0123456789');
+			
+			var called = 0;
+			// https://github.com/cjohansen/Sinon.JS/issues/607
+			let fixSinonBug = ";charset=utf-8";
+			server.respond(function (req) {
+				// Try with If-Match
+				if (req.method == "POST"
+						&& req.url == `${baseURL}users/1/items/${item.key}/file`
+						&& !req.requestBody.includes('upload=')
+						&& req.requestHeaders["If-Match"] == item.attachmentSyncedHash) {
+					called++;
+					req.respond(
+						412,
+						{
+							"Content-Type": "application/json"
+						},
+						"If-Match set but file does not exist"
+					);
+				}
+				// Retry with If-None-Match
+				else if (req.method == "POST"
+						&& req.url == `${baseURL}users/1/items/${item.key}/file`
+						&& !req.requestBody.includes('upload=')
+						&& req.requestHeaders["If-None-Match"] == "*") {
+					assert.equal(called++, 1);
+					req.respond(
+						200,
+						{
+							"Content-Type": "application/json"
+						},
+						JSON.stringify({
+							url: baseURL + "pretend-s3/1",
+							contentType: contentType,
+							prefix: prefix,
+							suffix: suffix,
+							uploadKey: uploadKey
+						})
+					);
+				}
+				// Upload file to S3
+				else if (req.method == "POST" && req.url == baseURL + "pretend-s3/1") {
+					assert.equal(called++, 2);
+					req.respond(201, {}, "");
+				}
+				// Use If-None-Match when registering upload
+				else if (req.method == "POST"
+						&& req.url == `${baseURL}users/1/items/${item.key}/file`
+						&& req.requestBody.includes('upload=')) {
+					assert.equal(called++, 3);
+					assert.equal(req.requestHeaders["If-None-Match"], "*");
+					req.respond(
+						204,
+						{
+							"Last-Modified-Version": 10
+						},
+						""
+					);
+				}
+			});
+			
+			var result = yield engine.start();
+			assert.equal(called, 4);
+		});
 	})
 	
 	
@@ -819,73 +903,6 @@ describe("Zotero.Sync.Storage.Mode.ZFS", function () {
 			assert.isTrue(result.syncRequired);
 		});
 		
-		it("should retry with If-None-Match on 412 with missing remote hash", function* () {
-			var { engine, client, caller } = yield setup();
-			var zfs = new Zotero.Sync.Storage.Mode.ZFS({
-				apiClient: client
-			})
-			
-			var file = getTestDataDirectory();
-			file.append('test.png');
-			var item = yield Zotero.Attachments.importFromFile({ file });
-			item.version = 5;
-			item.synced = true;
-			item.attachmentSyncedModificationTime = Date.now();
-			item.attachmentSyncedHash = 'bd4c33e03798a7e8bc0b46f8bda74fac'
-			yield item.saveTx();
-			
-			var contentType = 'image/png';
-			var prefix = Zotero.Utilities.randomString();
-			var suffix = Zotero.Utilities.randomString();
-			var uploadKey = Zotero.Utilities.randomString(32, 'abcdef0123456789');
-			
-			var called = 0;
-			server.respond(function (req) {
-				if (req.method == "POST"
-						&& req.url == `${baseURL}users/1/items/${item.key}/file`
-						&& !req.requestBody.includes('upload=')
-						&& req.requestHeaders["If-Match"] == item.attachmentSyncedHash) {
-					called++;
-					req.respond(
-						412,
-						{
-							"Content-Type": "application/json"
-						},
-						"If-Match set but file does not exist"
-					);
-				}
-				else if (req.method == "POST"
-						&& req.url == `${baseURL}users/1/items/${item.key}/file`
-						&& !req.requestBody.includes('upload=')
-						&& req.requestHeaders["If-None-Match"] == "*") {
-					assert.equal(called++, 1)
-					req.respond(
-						200,
-						{
-							"Content-Type": "application/json"
-						},
-						JSON.stringify({
-							url: baseURL + "pretend-s3/1",
-							contentType: contentType,
-							prefix: prefix,
-							suffix: suffix,
-							uploadKey: uploadKey
-						})
-					);
-				}
-			})
-			
-			var stub = sinon.stub(zfs, "_uploadFile");
-			
-			yield zfs._processUploadFile({
-				name: item.libraryKey
-			});
-			
-			assert.equal(called, 2);
-			assert.ok(stub.called);
-			
-			stub.restore();
-		});
 		
 		it("should handle 413 on quota limit", function* () {
 			var { engine, client, caller } = yield setup();