diff --git a/services/track-changes/test/acceptance/coffee/AppendingUpdatesTests.js b/services/track-changes/test/acceptance/coffee/AppendingUpdatesTests.js
index b0a9db982a..e2cda7f6e9 100644
--- a/services/track-changes/test/acceptance/coffee/AppendingUpdatesTests.js
+++ b/services/track-changes/test/acceptance/coffee/AppendingUpdatesTests.js
@@ -1,3 +1,9 @@
+/* eslint-disable
+    handle-callback-err,
+    no-unused-vars,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
 /*
  * decaffeinate suggestions:
  * DS102: Remove unnecessary code created because of implicit returns
@@ -19,7 +25,7 @@ const TrackChangesClient = require("./helpers/TrackChangesClient");
 const MockWebApi = require("./helpers/MockWebApi");
 
 describe("Appending doc ops to the history", function() {
-	before(done=> TrackChangesApp.ensureRunning(done));
+	before(function(done) { return TrackChangesApp.ensureRunning(done); });
 
 	describe("when the history does not exist yet", function() {
 		before(function(done) {
@@ -69,7 +75,7 @@ describe("Appending doc ops to the history", function() {
 		});
 
 		return it("should clear the doc from the DocsWithHistoryOps set", function(done) {
-			rclient.sismember(`DocsWithHistoryOps:${this.project_id}`, this.doc_id, function(error, member) {
+			rclient.sismember(`DocsWithHistoryOps:${this.project_id}`, this.doc_id, (error, member) => {
 				member.should.equal(0);
 				return done();
 			});
diff --git a/services/track-changes/test/acceptance/coffee/ArchivingUpdatesTests.js b/services/track-changes/test/acceptance/coffee/ArchivingUpdatesTests.js
index cb832274f5..ceee1767ce 100644
--- a/services/track-changes/test/acceptance/coffee/ArchivingUpdatesTests.js
+++ b/services/track-changes/test/acceptance/coffee/ArchivingUpdatesTests.js
@@ -1,3 +1,11 @@
+/* eslint-disable
+    camelcase,
+    handle-callback-err,
+    no-undef,
+    no-unused-vars,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
 /*
  * decaffeinate suggestions:
  * DS102: Remove unnecessary code created because of implicit returns
@@ -64,7 +72,7 @@ describe("Archiving updates", function() {
 		sinon.spy(MockDocStoreApi, "getAllDoc");
 
 		this.updates = [];
-		for (let i = 0, end = 512+10, asc = 0 <= end; asc ? i <= end : i >= end; asc ? i++ : i--) {
+		for (let i = 0, end = 512+10, asc = end >= 0; asc ? i <= end : i >= end; asc ? i++ : i--) {
 			this.updates.push({
 				op: [{ i: "a", p: 0 }],
 				meta: { ts: this.now + ((i-2048) * this.hours), user_id: this.user_id },
@@ -79,7 +87,7 @@ describe("Archiving updates", function() {
 		TrackChangesApp.ensureRunning(() => {
 			return TrackChangesClient.pushRawUpdates(this.project_id, this.doc_id, this.updates, error => {
 				if (error != null) { throw error; }
-				return TrackChangesClient.flushDoc(this.project_id, this.doc_id, function(error) {
+				return TrackChangesClient.flushDoc(this.project_id, this.doc_id, (error) => {
 					if (error != null) { throw error; }
 					return done();
 				});
@@ -99,7 +107,7 @@ describe("Archiving updates", function() {
 
 	describe("archiving a doc's updates", function() {
 		before(function(done) {
-			TrackChangesClient.pushDocHistory(this.project_id, this.doc_id, function(error) {
+			TrackChangesClient.pushDocHistory(this.project_id, this.doc_id, (error) => {
 				if (error != null) { throw error; }
 				return done();
 			});
@@ -107,7 +115,7 @@ describe("Archiving updates", function() {
 		});
 
 		it("should have one cached pack", function(done) {
-			return db.docHistory.count({ doc_id: ObjectId(this.doc_id), expiresAt:{$exists:true}}, function(error, count) {
+			return db.docHistory.count({ doc_id: ObjectId(this.doc_id), expiresAt:{$exists:true}}, (error, count) => {
 				if (error != null) { throw error; }
 				count.should.equal(1);
 				return done();
@@ -120,7 +128,7 @@ describe("Archiving updates", function() {
 				expiresAt:{$exists:true}
 			}, (err, result) => {
 				if (typeof error !== 'undefined' && error !== null) { throw error; }
-				return db.docHistory.count({ doc_id: ObjectId(this.doc_id)}, function(error, count) {
+				return db.docHistory.count({ doc_id: ObjectId(this.doc_id)}, (error, count) => {
 					if (error != null) { throw error; }
 					count.should.equal(1);
 					return done();
@@ -129,7 +137,7 @@ describe("Archiving updates", function() {
 		});
 
 		it("should have a docHistoryIndex entry marked as inS3", function(done) {
-			return db.docHistoryIndex.findOne({ _id: ObjectId(this.doc_id) }, function(error, index) {
+			return db.docHistoryIndex.findOne({ _id: ObjectId(this.doc_id) }, (error, index) => {
 				if (error != null) { throw error; }
 				index.packs[0].inS3.should.equal(true);
 				return done();
@@ -137,7 +145,7 @@ describe("Archiving updates", function() {
 		});
 
 		it("should have a docHistoryIndex entry with the last version", function(done) {
-			return db.docHistoryIndex.findOne({ _id: ObjectId(this.doc_id) }, function(error, index) {
+			return db.docHistoryIndex.findOne({ _id: ObjectId(this.doc_id) }, (error, index) => {
 				if (error != null) { throw error; }
 				index.packs[0].v_end.should.equal(1024);
 				return done();
@@ -159,7 +167,7 @@ describe("Archiving updates", function() {
 
 	return describe("unarchiving a doc's updates", function() {
 		before(function(done) {
-			TrackChangesClient.pullDocHistory(this.project_id, this.doc_id, function(error) {
+			TrackChangesClient.pullDocHistory(this.project_id, this.doc_id, (error) => {
 				if (error != null) { throw error; }
 				return done();
 			});
@@ -167,7 +175,7 @@ describe("Archiving updates", function() {
 		});
 
 		return it("should restore both packs", function(done) {
-			return db.docHistory.count({ doc_id: ObjectId(this.doc_id) }, function(error, count) {
+			return db.docHistory.count({ doc_id: ObjectId(this.doc_id) }, (error, count) => {
 				if (error != null) { throw error; }
 				count.should.equal(2);
 				return done();
diff --git a/services/track-changes/test/acceptance/coffee/FlushingUpdatesTests.js b/services/track-changes/test/acceptance/coffee/FlushingUpdatesTests.js
index 61d46ec98c..bc7a6b886a 100644
--- a/services/track-changes/test/acceptance/coffee/FlushingUpdatesTests.js
+++ b/services/track-changes/test/acceptance/coffee/FlushingUpdatesTests.js
@@ -1,3 +1,9 @@
+/* eslint-disable
+    handle-callback-err,
+    no-unused-vars,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
 /*
  * decaffeinate suggestions:
  * DS102: Remove unnecessary code created because of implicit returns
@@ -19,7 +25,7 @@ const TrackChangesClient = require("./helpers/TrackChangesClient");
 const MockWebApi = require("./helpers/MockWebApi");
 
 describe("Flushing updates", function() {
-	before(done=> TrackChangesApp.ensureRunning(done));
+	before(function(done) { return TrackChangesApp.ensureRunning(done); });
 
 	describe("flushing a doc's updates", function() {
 		before(function(done) {
@@ -34,7 +40,7 @@ describe("Flushing updates", function() {
 				v: 3
 			}], error => {
 				if (error != null) { throw error; }
-				return TrackChangesClient.flushDoc(this.project_id, this.doc_id, function(error) {
+				return TrackChangesClient.flushDoc(this.project_id, this.doc_id, (error) => {
 					if (error != null) { throw error; }
 					return done();
 				});
@@ -43,7 +49,7 @@ describe("Flushing updates", function() {
 		});
 
 		return it("should flush the op into mongo", function(done) {
-			TrackChangesClient.getCompressedUpdates(this.doc_id, function(error, updates) {
+			TrackChangesClient.getCompressedUpdates(this.doc_id, (error, updates) => {
 				expect(updates[0].pack[0].op).to.deep.equal([{
 					p: 3, i: "f"
 				}]);
@@ -78,7 +84,7 @@ describe("Flushing updates", function() {
 					v: 3
 				}], error => {
 					if (error != null) { throw error; }
-					return TrackChangesClient.flushProject(this.project_id, function(error) {
+					return TrackChangesClient.flushProject(this.project_id, (error) => {
 						if (error != null) { throw error; }
 						return done();
 					});
@@ -87,7 +93,7 @@ describe("Flushing updates", function() {
 			});
 
 			it("should not mark the updates for deletion", function(done) {
-				TrackChangesClient.getCompressedUpdates(this.doc_id, function(error, updates) {
+				TrackChangesClient.getCompressedUpdates(this.doc_id, (error, updates) => {
 					expect(updates[0].expiresAt).to.not.exist;
 					return done();
 				});
@@ -95,7 +101,7 @@ describe("Flushing updates", function() {
 			});
 
 			return it("should preserve history forever", function(done) {
-				TrackChangesClient.getProjectMetaData(this.project_id, function(error, project) {
+				TrackChangesClient.getProjectMetaData(this.project_id, (error, project) => {
 					expect(project.preserveHistory).to.equal(true);
 					return done();
 				});
@@ -127,7 +133,7 @@ describe("Flushing updates", function() {
 					v: 3
 				}], error => {
 					if (error != null) { throw error; }
-					return TrackChangesClient.flushProject(this.project_id, function(error) {
+					return TrackChangesClient.flushProject(this.project_id, (error) => {
 						if (error != null) { throw error; }
 						return done();
 					});
@@ -136,7 +142,7 @@ describe("Flushing updates", function() {
 			});
 
 			return it("should mark the updates for deletion", function(done) {
-				TrackChangesClient.getCompressedUpdates(this.doc_id, function(error, updates) {
+				TrackChangesClient.getCompressedUpdates(this.doc_id, (error, updates) => {
 					expect(updates[0].expiresAt).to.exist;
 					return done();
 				});
@@ -170,7 +176,7 @@ describe("Flushing updates", function() {
 						v: 3
 					}], error => {
 						if (error != null) { throw error; }
-						return TrackChangesClient.flushProject(this.project_id, function(error) {
+						return TrackChangesClient.flushProject(this.project_id, (error) => {
 							if (error != null) { throw error; }
 							return done();
 						});
@@ -180,7 +186,7 @@ describe("Flushing updates", function() {
 			});
 
 			return it("should not mark the updates for deletion", function(done) {
-				TrackChangesClient.getCompressedUpdates(this.doc_id, function(error, updates) {
+				TrackChangesClient.getCompressedUpdates(this.doc_id, (error, updates) => {
 					expect(updates[0].expiresAt).to.not.exist;
 					return done();
 				});
diff --git a/services/track-changes/test/acceptance/coffee/GettingADiffTests.js b/services/track-changes/test/acceptance/coffee/GettingADiffTests.js
index ab7c26372c..7dd63698ea 100644
--- a/services/track-changes/test/acceptance/coffee/GettingADiffTests.js
+++ b/services/track-changes/test/acceptance/coffee/GettingADiffTests.js
@@ -1,3 +1,8 @@
+/* eslint-disable
+    no-unused-vars,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
 /*
  * decaffeinate suggestions:
  * DS102: Remove unnecessary code created because of implicit returns
diff --git a/services/track-changes/test/acceptance/coffee/GettingUpdatesTests.js b/services/track-changes/test/acceptance/coffee/GettingUpdatesTests.js
index a4519d11f3..299ba96afd 100644
--- a/services/track-changes/test/acceptance/coffee/GettingUpdatesTests.js
+++ b/services/track-changes/test/acceptance/coffee/GettingUpdatesTests.js
@@ -1,3 +1,9 @@
+/* eslint-disable
+    chai-friendly/no-unused-expressions,
+    no-unused-vars,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
 /*
  * decaffeinate suggestions:
  * DS102: Remove unnecessary code created because of implicit returns
diff --git a/services/track-changes/test/acceptance/coffee/LockManagerTests.js b/services/track-changes/test/acceptance/coffee/LockManagerTests.js
index 84a5c51209..19e0a13914 100644
--- a/services/track-changes/test/acceptance/coffee/LockManagerTests.js
+++ b/services/track-changes/test/acceptance/coffee/LockManagerTests.js
@@ -1,3 +1,9 @@
+/* eslint-disable
+    handle-callback-err,
+    no-unused-vars,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
 /*
  * decaffeinate suggestions:
  * DS102: Remove unnecessary code created because of implicit returns
@@ -31,7 +37,7 @@ describe("Locking document", function() {
 					LockManager.runWithLock("doc123", releaseB => {
 						return releaseA();
 					}  // try to release lock A to see if it wipes out lock B
-					, function(error) {})
+					, (error) => {})
 				
 						// we never release lock B so nothing should happen here
 				, 1500);
@@ -44,7 +50,7 @@ describe("Locking document", function() {
 		});
 
 		return it("the new lock should not be removed by the expired locker", function(done) {
-			LockManager.checkLock("doc123", function(err, isFree) {
+			LockManager.checkLock("doc123", (err, isFree) => {
 					expect(isFree).to.equal(false);
 					return done();
 			});
diff --git a/services/track-changes/test/acceptance/coffee/RestoringVersions.js b/services/track-changes/test/acceptance/coffee/RestoringVersions.js
index b9da0d7045..3c03848a8b 100644
--- a/services/track-changes/test/acceptance/coffee/RestoringVersions.js
+++ b/services/track-changes/test/acceptance/coffee/RestoringVersions.js
@@ -1,3 +1,8 @@
+/* eslint-disable
+    no-unused-vars,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
 /*
  * decaffeinate suggestions:
  * DS102: Remove unnecessary code created because of implicit returns
diff --git a/services/track-changes/test/acceptance/coffee/helpers/MockDocStoreApi.js b/services/track-changes/test/acceptance/coffee/helpers/MockDocStoreApi.js
index 8aec89535a..c55260a007 100644
--- a/services/track-changes/test/acceptance/coffee/helpers/MockDocStoreApi.js
+++ b/services/track-changes/test/acceptance/coffee/helpers/MockDocStoreApi.js
@@ -1,3 +1,9 @@
+/* eslint-disable
+    camelcase,
+    handle-callback-err,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
 /*
  * decaffeinate suggestions:
  * DS102: Remove unnecessary code created because of implicit returns
@@ -18,7 +24,7 @@ module.exports = (MockDocUpdaterApi = {
 
 	run() {
 		app.get("/project/:project_id/doc", (req, res, next) => {
-			return this.getAllDoc(req.params.project_id, function(error, docs) {
+			return this.getAllDoc(req.params.project_id, (error, docs) => {
 				if (error != null) {
 					res.send(500);
 				}
@@ -30,9 +36,9 @@ module.exports = (MockDocUpdaterApi = {
 			});
 		});
 
-		return app.listen(3016, function(error) {
+		return app.listen(3016, (error) => {
 			if (error != null) { throw error; }
-	}).on("error", function(error) {
+	}).on("error", (error) => {
 			console.error("error starting MockDocStoreApi:", error.message);
 			return process.exit(1);
 		});
diff --git a/services/track-changes/test/acceptance/coffee/helpers/MockDocUpdaterApi.js b/services/track-changes/test/acceptance/coffee/helpers/MockDocUpdaterApi.js
index 27b62576a1..8ba6f2c6b2 100644
--- a/services/track-changes/test/acceptance/coffee/helpers/MockDocUpdaterApi.js
+++ b/services/track-changes/test/acceptance/coffee/helpers/MockDocUpdaterApi.js
@@ -1,3 +1,10 @@
+/* eslint-disable
+    camelcase,
+    handle-callback-err,
+    no-undef,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
 /*
  * decaffeinate suggestions:
  * DS102: Remove unnecessary code created because of implicit returns
@@ -25,7 +32,7 @@ module.exports = (MockDocUpdaterApi = {
 
 	run() {
 		app.get("/project/:project_id/doc/:doc_id", (req, res, next) => {
-			return this.getDoc(req.params.project_id, req.params.doc_id, function(error, doc) {
+			return this.getDoc(req.params.project_id, req.params.doc_id, (error, doc) => {
 				if (error != null) {
 					res.send(500);
 				}
@@ -38,7 +45,7 @@ module.exports = (MockDocUpdaterApi = {
 		});
 
 		app.post("/project/:project_id/doc/:doc_id", express.bodyParser(), (req, res, next) => {
-			return this.setDoc(req.params.project_id, req.params.doc_id, req.body.lines, req.body.user_id, req.body.undoing, function(errr, doc) {
+			return this.setDoc(req.params.project_id, req.params.doc_id, req.body.lines, req.body.user_id, req.body.undoing, (errr, doc) => {
 				if (typeof error !== 'undefined' && error !== null) {
 					return res.send(500);
 				} else {
@@ -47,9 +54,9 @@ module.exports = (MockDocUpdaterApi = {
 			});
 		});
 
-		return app.listen(3003, function(error) {
+		return app.listen(3003, (error) => {
 			if (error != null) { throw error; }
-	}).on("error", function(error) {
+	}).on("error", (error) => {
 			console.error("error starting MockDocUpdaterApi:", error.message);
 			return process.exit(1);
 		});
diff --git a/services/track-changes/test/acceptance/coffee/helpers/MockWebApi.js b/services/track-changes/test/acceptance/coffee/helpers/MockWebApi.js
index 41bb890a86..cf1350f97d 100644
--- a/services/track-changes/test/acceptance/coffee/helpers/MockWebApi.js
+++ b/services/track-changes/test/acceptance/coffee/helpers/MockWebApi.js
@@ -1,3 +1,9 @@
+/* eslint-disable
+    camelcase,
+    handle-callback-err,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
 /*
  * decaffeinate suggestions:
  * DS102: Remove unnecessary code created because of implicit returns
@@ -25,7 +31,7 @@ module.exports = (MockWebApi = {
 
 	run() {
 		app.get("/user/:user_id/personal_info", (req, res, next) => {
-			return this.getUserInfo(req.params.user_id, function(error, user) {
+			return this.getUserInfo(req.params.user_id, (error, user) => {
 				if (error != null) {
 					res.send(500);
 				}
@@ -38,7 +44,7 @@ module.exports = (MockWebApi = {
 		});
 
 		app.get("/project/:project_id/details", (req, res, next) => {
-			return this.getProjectDetails(req.params.project_id, function(error, project) {
+			return this.getProjectDetails(req.params.project_id, (error, project) => {
 				if (error != null) {
 					res.send(500);
 				}
@@ -50,9 +56,9 @@ module.exports = (MockWebApi = {
 			});
 		});
 
-		return app.listen(3000, function(error) {
+		return app.listen(3000, (error) => {
 			if (error != null) { throw error; }
-	}).on("error", function(error) {
+	}).on("error", (error) => {
 			console.error("error starting MockWebApiServer:", error.message);
 			return process.exit(1);
 		});
diff --git a/services/track-changes/test/acceptance/coffee/helpers/TrackChangesApp.js b/services/track-changes/test/acceptance/coffee/helpers/TrackChangesApp.js
index 31bf505b33..464961c689 100644
--- a/services/track-changes/test/acceptance/coffee/helpers/TrackChangesApp.js
+++ b/services/track-changes/test/acceptance/coffee/helpers/TrackChangesApp.js
@@ -1,3 +1,8 @@
+/* eslint-disable
+    handle-callback-err,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
 /*
  * decaffeinate suggestions:
  * DS101: Remove unnecessary use of Array.from
diff --git a/services/track-changes/test/acceptance/coffee/helpers/TrackChangesClient.js b/services/track-changes/test/acceptance/coffee/helpers/TrackChangesClient.js
index 3cf1a26a33..df66425a49 100644
--- a/services/track-changes/test/acceptance/coffee/helpers/TrackChangesClient.js
+++ b/services/track-changes/test/acceptance/coffee/helpers/TrackChangesClient.js
@@ -1,3 +1,10 @@
+/* eslint-disable
+    camelcase,
+    handle-callback-err,
+    no-unused-vars,
+*/
+// TODO: This file was created by bulk-decaffeinate.
+// Fix any style issues and re-enable lint.
 /*
  * decaffeinate suggestions:
  * DS101: Remove unnecessary use of Array.from
@@ -26,7 +33,7 @@ const S3_BUCKET = Settings.trackchanges.stores.doc_history;
 module.exports = (TrackChangesClient = {
 	flushAndGetCompressedUpdates(project_id, doc_id, callback) {
 		if (callback == null) { callback = function(error, updates) {}; }
-		return TrackChangesClient.flushDoc(project_id, doc_id, function(error) {
+		return TrackChangesClient.flushDoc(project_id, doc_id, (error) => {
 			if (error != null) { return callback(error); }
 			return TrackChangesClient.getCompressedUpdates(doc_id, callback);
 		});
@@ -82,7 +89,7 @@ module.exports = (TrackChangesClient = {
 
 	pushRawUpdates(project_id, doc_id, updates, callback) {
 		if (callback == null) { callback = function(error) {}; }
-		return rclient.sadd(Keys.docsWithHistoryOps({project_id}), doc_id, function(error) {
+		return rclient.sadd(Keys.docsWithHistoryOps({project_id}), doc_id, (error) => {
 			if (error != null) { return callback(error); }
 			return rclient.rpush(Keys.uncompressedHistoryOps({doc_id}), ...Array.from(((Array.from(updates).map((u) => JSON.stringify(u))))), callback);
 		});
@@ -147,7 +154,7 @@ module.exports = (TrackChangesClient = {
 			return done();
 		}
 
-		return request.get(`${Settings.trackchanges.s3.endpoint}/`, function(err, res) {
+		return request.get(`${Settings.trackchanges.s3.endpoint}/`, (err, res) => {
 			if (res && (res.statusCode < 500)) {
 				return done();
 			}
@@ -168,11 +175,11 @@ module.exports = (TrackChangesClient = {
 			Key: `${project_id}/changes-${doc_id}/pack-${pack_id}`
 		};
 
-		return s3.getObject(params, function(error, data) {
+		return s3.getObject(params, (error, data) => {
 			if (error != null) { return callback(error); }
 			const body = data.Body;
 			if ((body == null)) { return callback(new Error("empty response from s3")); }
-			return zlib.gunzip(body, function(err, result) {
+			return zlib.gunzip(body, (err, result) => {
 				if (err != null) { return callback(err); }
 				return callback(null, JSON.parse(result.toString()));
 			});
@@ -186,7 +193,7 @@ module.exports = (TrackChangesClient = {
 			Prefix: `${project_id}/changes-${doc_id}`
 		};
 
-		return s3.listObjects(params, function(error, data) {
+		return s3.listObjects(params, (error, data) => {
 			if (error != null) { return callback(error); }
 
 			params = {