From 840a6917d7f9d1e88533e6a43a855b08735bfe59 Mon Sep 17 00:00:00 2001
From: Na Li <linazhao@google.com>
Date: Tue, 14 Apr 2020 16:41:31 -0700
Subject: [PATCH 1/6] Add cpu as a dev dependency to tfjs-node.

---
 scripts/release-util.ts     |  2 +-
 tfjs-node-gpu/package.json  |  1 +
 tfjs-node-gpu/yarn.lock     |  4 ++++
 tfjs-node/package.json      |  1 +
 tfjs-node/src/image_test.ts |  4 ++--
 tfjs-node/src/run_tests.ts  | 16 ++++++++++------
 tfjs-node/yarn.lock         |  4 ++++
 7 files changed, 23 insertions(+), 9 deletions(-)

diff --git a/scripts/release-util.ts b/scripts/release-util.ts
index e73c18b63e8..b15393ec910 100755
--- a/scripts/release-util.ts
+++ b/scripts/release-util.ts
@@ -53,7 +53,7 @@ export const UNION_PHASE: Phase = {
 // the test to tf.layers.
 export const NODE_PHASE: Phase = {
   packages: ['tfjs-node', 'tfjs-node-gpu'],
-  deps: ['tfjs', 'tfjs-core'],
+  deps: ['tfjs', 'tfjs-core', 'tfjs-backend-cpu'],
   scripts: {'tfjs-node-gpu': {'before-yarn': ['yarn prep-gpu']}}
 };
 
diff --git a/tfjs-node-gpu/package.json b/tfjs-node-gpu/package.json
index c5ec8e4f2ec..09a939bfb79 100644
--- a/tfjs-node-gpu/package.json
+++ b/tfjs-node-gpu/package.json
@@ -49,6 +49,7 @@
     "upload-windows-addon": "prep-gpu-windows.bat && ./scripts/build-and-upload-windows-addon-gpu.bat"
   },
   "devDependencies": {
+    "@tensorflow/tfjs-backend-cpu": "link:../tfjs-backend-cpu",
     "@types/jasmine": "~2.8.6",
     "@types/node": "^10.5.1",
     "@types/progress": "^2.0.1",
diff --git a/tfjs-node-gpu/yarn.lock b/tfjs-node-gpu/yarn.lock
index 1e32ee3b870..e0aec3d14de 100644
--- a/tfjs-node-gpu/yarn.lock
+++ b/tfjs-node-gpu/yarn.lock
@@ -90,6 +90,10 @@
     lodash "^4.17.13"
     to-fast-properties "^2.0.0"
 
+"@tensorflow/tfjs-backend-cpu@link:../tfjs-backend-cpu":
+  version "0.0.0"
+  uid ""
+
 "@tensorflow/tfjs-converter@link:../tfjs-converter":
   version "0.0.0"
   uid ""
diff --git a/tfjs-node/package.json b/tfjs-node/package.json
index 16dd6f64de8..1149fab8ae7 100644
--- a/tfjs-node/package.json
+++ b/tfjs-node/package.json
@@ -47,6 +47,7 @@
     "upload-windows-addon": "./scripts/build-and-upload-windows-addon.bat"
   },
   "devDependencies": {
+    "@tensorflow/tfjs-backend-cpu": "link:../tfjs-backend-cpu",
     "@types/jasmine": "~2.8.6",
     "@types/node": "^10.5.1",
     "@types/progress": "^2.0.1",
diff --git a/tfjs-node/src/image_test.ts b/tfjs-node/src/image_test.ts
index f0131dfb0a7..7b03d210744 100644
--- a/tfjs-node/src/image_test.ts
+++ b/tfjs-node/src/image_test.ts
@@ -1,6 +1,6 @@
 /**
  * @license
- * Copyright 2019 Google Inc. All Rights Reserved.
+ * Copyright 2020 Google Inc. All Rights Reserved.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -14,7 +14,7 @@
  * limitations under the License.
  * =============================================================================
  */
-
+import '@tensorflow/tfjs-backend-cpu';
 import {memory, setBackend, test_util} from '@tensorflow/tfjs';
 import * as fs from 'fs';
 import {promisify} from 'util';
diff --git a/tfjs-node/src/run_tests.ts b/tfjs-node/src/run_tests.ts
index 847441c5431..dd5ff25830b 100644
--- a/tfjs-node/src/run_tests.ts
+++ b/tfjs-node/src/run_tests.ts
@@ -35,8 +35,12 @@ process.on('unhandledRejection', e => {
   throw e;
 });
 
-jasmine_util.setTestEnvs(
-    [{name: 'test-tensorflow', backendName: 'tensorflow', flags: {}}]);
+jasmine_util.setTestEnvs([{
+  name: 'test-tensorflow',
+  backendName: 'tensorflow',
+  flags: {},
+  isDataSync: true
+}]);
 
 const IGNORE_LIST: string[] = [
   // Always ignore version tests:
@@ -90,11 +94,11 @@ if (process.platform === 'win32') {
       'maxPool test-tensorflow {} [x=[3,3,1] f=[2,2] s=1 ignores NaNs');
 }
 
-const coreTests = 'node_modules/@tensorflow/tfjs-core/dist/**/*_test.js';
-const nodeTests = 'src/**/*_test.ts';
-
 const runner = new jasmineCtor();
-runner.loadConfig({spec_files: [coreTests, nodeTests], random: false});
+runner.loadConfig({spec_files: ['src/**/*_test.ts'], random: false});
+// Also import tests from core.
+// tslint:disable-next-line: no-imports-from-dist
+import '@tensorflow/tfjs-core/dist/tests';
 
 if (process.env.JASMINE_SEED) {
   runner.seed(process.env.JASMINE_SEED);
diff --git a/tfjs-node/yarn.lock b/tfjs-node/yarn.lock
index 2f2b7d8da14..337f4a4f7c6 100644
--- a/tfjs-node/yarn.lock
+++ b/tfjs-node/yarn.lock
@@ -90,6 +90,10 @@
     lodash "^4.17.13"
     to-fast-properties "^2.0.0"
 
+"@tensorflow/tfjs-backend-cpu@link:../tfjs-backend-cpu":
+  version "0.0.0"
+  uid ""
+
 "@tensorflow/tfjs-converter@link:../tfjs-converter":
   version "0.0.0"
   uid ""

From e45043dcaa911bc1df2a687bf8c9bcbb525d9923 Mon Sep 17 00:00:00 2001
From: Na Li <linazhao@google.com>
Date: Tue, 14 Apr 2020 16:56:51 -0700
Subject: [PATCH 2/6] Add build-backend-cpu to build-dep.

---
 tfjs-node-gpu/package.json | 6 ++++--
 tfjs-node/package.json     | 6 ++++--
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/tfjs-node-gpu/package.json b/tfjs-node-gpu/package.json
index 09a939bfb79..3a4a67375d0 100644
--- a/tfjs-node-gpu/package.json
+++ b/tfjs-node-gpu/package.json
@@ -16,6 +16,8 @@
     "build-ci": "tsc && mkdir -p dist/proto && cp src/proto/api_pb.js dist/proto/api_pb.js",
     "build-core": "cd ../tfjs-core && yarn && yarn build",
     "build-core-ci": "cd ../tfjs-core && yarn && yarn build-ci",
+    "build-backend-cpu": "cd ../tfjs-backend-cpu && yarn && yarn build",
+    "build-backend-cpu-ci": "cd ../tfjs-backend-cpu && yarn && yarn build-ci",
     "build-layers": "cd ../tfjs-layers && yarn && yarn build",
     "build-layers-ci": "cd ../tfjs-layers && yarn && yarn build-ci",
     "build-converter": "cd ../tfjs-converter && yarn && yarn build",
@@ -24,8 +26,8 @@
     "build-data-ci": "cd ../tfjs-data && yarn && yarn build-ci",
     "build-union": "cd ../tfjs && yarn && yarn build",
     "build-union-ci": "cd ../tfjs && yarn && yarn build-ci",
-    "build-deps": "yarn build-core && yarn build-layers && yarn build-converter && yarn build-data && yarn build-union",
-    "build-deps-ci": "yarn build-core-ci && yarn build-layers-ci && yarn build-converter-ci && yarn build-data-ci && yarn build-union-ci",
+    "build-deps": "yarn build-core && yarn build-backend-cpu && yarn build-layers && yarn build-converter && yarn build-data && yarn build-union",
+    "build-deps-ci": "yarn build-core-ci && build-backend-cpu-ci && yarn build-layers-ci && yarn build-converter-ci && yarn build-data-ci && yarn build-union-ci",
     "build-npm": "yarn prep-gpu && ./scripts/build-npm.sh",
     "build-addon": "./scripts/build-and-upload-addon.sh",
     "build-addon-from-source": "node-pre-gyp install --build-from-source",
diff --git a/tfjs-node/package.json b/tfjs-node/package.json
index 1149fab8ae7..b50b4a549f5 100644
--- a/tfjs-node/package.json
+++ b/tfjs-node/package.json
@@ -16,6 +16,8 @@
     "build-ci": "tsc && mkdir -p dist/proto && cp src/proto/api_pb.js dist/proto/api_pb.js",
     "build-core": "cd ../tfjs-core && yarn && yarn build",
     "build-core-ci": "cd ../tfjs-core && yarn && yarn build-ci",
+    "build-backend-cpu": "cd ../tfjs-backend-cpu && yarn && yarn build",
+    "build-backend-cpu-ci": "cd ../tfjs-backend-cpu && yarn && yarn build-ci",
     "build-layers": "cd ../tfjs-layers && yarn && yarn build",
     "build-layers-ci": "cd ../tfjs-layers && yarn && yarn build-ci",
     "build-converter": "cd ../tfjs-converter && yarn && yarn build",
@@ -24,8 +26,8 @@
     "build-data-ci": "cd ../tfjs-data && yarn && yarn build-ci",
     "build-union": "cd ../tfjs && yarn && yarn build",
     "build-union-ci": "cd ../tfjs && yarn && yarn build-ci",
-    "build-deps": "yarn build-core && yarn build-layers && yarn build-converter && yarn build-data && yarn build-union",
-    "build-deps-ci": "yarn build-core-ci && yarn build-layers-ci && yarn build-converter-ci && yarn build-data-ci && yarn build-union-ci",
+    "build-deps": "yarn build-core && yarn build-backend-cpu && yarn build-layers && yarn build-converter && yarn build-data && yarn build-union",
+    "build-deps-ci": "yarn build-core-ci && build-backend-cpu-ci && yarn build-layers-ci && yarn build-converter-ci && yarn build-data-ci && yarn build-union-ci",
     "build-npm": "./scripts/build-npm.sh",
     "build-addon": "./scripts/build-and-upload-addon.sh",
     "build-addon-from-source": "node-pre-gyp install --build-from-source",

From 96e7c470c030711a602a4dd47663bdde56bdc234 Mon Sep 17 00:00:00 2001
From: Na Li <linazhao@google.com>
Date: Tue, 14 Apr 2020 17:02:05 -0700
Subject: [PATCH 3/6] Fix typo.

---
 tfjs-node-gpu/package.json | 2 +-
 tfjs-node/package.json     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/tfjs-node-gpu/package.json b/tfjs-node-gpu/package.json
index 3a4a67375d0..d06c021930c 100644
--- a/tfjs-node-gpu/package.json
+++ b/tfjs-node-gpu/package.json
@@ -27,7 +27,7 @@
     "build-union": "cd ../tfjs && yarn && yarn build",
     "build-union-ci": "cd ../tfjs && yarn && yarn build-ci",
     "build-deps": "yarn build-core && yarn build-backend-cpu && yarn build-layers && yarn build-converter && yarn build-data && yarn build-union",
-    "build-deps-ci": "yarn build-core-ci && build-backend-cpu-ci && yarn build-layers-ci && yarn build-converter-ci && yarn build-data-ci && yarn build-union-ci",
+    "build-deps-ci": "yarn build-core-ci && yarn build-backend-cpu-ci && yarn build-layers-ci && yarn build-converter-ci && yarn build-data-ci && yarn build-union-ci",
     "build-npm": "yarn prep-gpu && ./scripts/build-npm.sh",
     "build-addon": "./scripts/build-and-upload-addon.sh",
     "build-addon-from-source": "node-pre-gyp install --build-from-source",
diff --git a/tfjs-node/package.json b/tfjs-node/package.json
index b50b4a549f5..4d7abf980d4 100644
--- a/tfjs-node/package.json
+++ b/tfjs-node/package.json
@@ -27,7 +27,7 @@
     "build-union": "cd ../tfjs && yarn && yarn build",
     "build-union-ci": "cd ../tfjs && yarn && yarn build-ci",
     "build-deps": "yarn build-core && yarn build-backend-cpu && yarn build-layers && yarn build-converter && yarn build-data && yarn build-union",
-    "build-deps-ci": "yarn build-core-ci && build-backend-cpu-ci && yarn build-layers-ci && yarn build-converter-ci && yarn build-data-ci && yarn build-union-ci",
+    "build-deps-ci": "yarn build-core-ci && yarn build-backend-cpu-ci && yarn build-layers-ci && yarn build-converter-ci && yarn build-data-ci && yarn build-union-ci",
     "build-npm": "./scripts/build-npm.sh",
     "build-addon": "./scripts/build-and-upload-addon.sh",
     "build-addon-from-source": "node-pre-gyp install --build-from-source",

From 4c13cdf6ca97cd9f292e702570c3b3e48f8d7e3b Mon Sep 17 00:00:00 2001
From: Na Li <linazhao@google.com>
Date: Wed, 15 Apr 2020 10:27:22 -0700
Subject: [PATCH 4/6] Use sync backend instead of cpu.

---
 scripts/release-util.ts                     |  2 +-
 tfjs-node-gpu/package.json                  |  7 ++-----
 tfjs-node-gpu/yarn.lock                     |  4 ----
 tfjs-node/package.json                      |  1 -
 tfjs-node/src/image_test.ts                 | 14 ++++++++++----
 tfjs-node/src/nodejs_kernel_backend_test.ts | 11 +++++++++--
 tfjs-node/yarn.lock                         |  4 ----
 7 files changed, 22 insertions(+), 21 deletions(-)

diff --git a/scripts/release-util.ts b/scripts/release-util.ts
index b15393ec910..e73c18b63e8 100755
--- a/scripts/release-util.ts
+++ b/scripts/release-util.ts
@@ -53,7 +53,7 @@ export const UNION_PHASE: Phase = {
 // the test to tf.layers.
 export const NODE_PHASE: Phase = {
   packages: ['tfjs-node', 'tfjs-node-gpu'],
-  deps: ['tfjs', 'tfjs-core', 'tfjs-backend-cpu'],
+  deps: ['tfjs', 'tfjs-core'],
   scripts: {'tfjs-node-gpu': {'before-yarn': ['yarn prep-gpu']}}
 };
 
diff --git a/tfjs-node-gpu/package.json b/tfjs-node-gpu/package.json
index d06c021930c..c5ec8e4f2ec 100644
--- a/tfjs-node-gpu/package.json
+++ b/tfjs-node-gpu/package.json
@@ -16,8 +16,6 @@
     "build-ci": "tsc && mkdir -p dist/proto && cp src/proto/api_pb.js dist/proto/api_pb.js",
     "build-core": "cd ../tfjs-core && yarn && yarn build",
     "build-core-ci": "cd ../tfjs-core && yarn && yarn build-ci",
-    "build-backend-cpu": "cd ../tfjs-backend-cpu && yarn && yarn build",
-    "build-backend-cpu-ci": "cd ../tfjs-backend-cpu && yarn && yarn build-ci",
     "build-layers": "cd ../tfjs-layers && yarn && yarn build",
     "build-layers-ci": "cd ../tfjs-layers && yarn && yarn build-ci",
     "build-converter": "cd ../tfjs-converter && yarn && yarn build",
@@ -26,8 +24,8 @@
     "build-data-ci": "cd ../tfjs-data && yarn && yarn build-ci",
     "build-union": "cd ../tfjs && yarn && yarn build",
     "build-union-ci": "cd ../tfjs && yarn && yarn build-ci",
-    "build-deps": "yarn build-core && yarn build-backend-cpu && yarn build-layers && yarn build-converter && yarn build-data && yarn build-union",
-    "build-deps-ci": "yarn build-core-ci && yarn build-backend-cpu-ci && yarn build-layers-ci && yarn build-converter-ci && yarn build-data-ci && yarn build-union-ci",
+    "build-deps": "yarn build-core && yarn build-layers && yarn build-converter && yarn build-data && yarn build-union",
+    "build-deps-ci": "yarn build-core-ci && yarn build-layers-ci && yarn build-converter-ci && yarn build-data-ci && yarn build-union-ci",
     "build-npm": "yarn prep-gpu && ./scripts/build-npm.sh",
     "build-addon": "./scripts/build-and-upload-addon.sh",
     "build-addon-from-source": "node-pre-gyp install --build-from-source",
@@ -51,7 +49,6 @@
     "upload-windows-addon": "prep-gpu-windows.bat && ./scripts/build-and-upload-windows-addon-gpu.bat"
   },
   "devDependencies": {
-    "@tensorflow/tfjs-backend-cpu": "link:../tfjs-backend-cpu",
     "@types/jasmine": "~2.8.6",
     "@types/node": "^10.5.1",
     "@types/progress": "^2.0.1",
diff --git a/tfjs-node-gpu/yarn.lock b/tfjs-node-gpu/yarn.lock
index e0aec3d14de..1e32ee3b870 100644
--- a/tfjs-node-gpu/yarn.lock
+++ b/tfjs-node-gpu/yarn.lock
@@ -90,10 +90,6 @@
     lodash "^4.17.13"
     to-fast-properties "^2.0.0"
 
-"@tensorflow/tfjs-backend-cpu@link:../tfjs-backend-cpu":
-  version "0.0.0"
-  uid ""
-
 "@tensorflow/tfjs-converter@link:../tfjs-converter":
   version "0.0.0"
   uid ""
diff --git a/tfjs-node/package.json b/tfjs-node/package.json
index 4d7abf980d4..4d8a5706ca4 100644
--- a/tfjs-node/package.json
+++ b/tfjs-node/package.json
@@ -49,7 +49,6 @@
     "upload-windows-addon": "./scripts/build-and-upload-windows-addon.bat"
   },
   "devDependencies": {
-    "@tensorflow/tfjs-backend-cpu": "link:../tfjs-backend-cpu",
     "@types/jasmine": "~2.8.6",
     "@types/node": "^10.5.1",
     "@types/progress": "^2.0.1",
diff --git a/tfjs-node/src/image_test.ts b/tfjs-node/src/image_test.ts
index 7b03d210744..b87076f5533 100644
--- a/tfjs-node/src/image_test.ts
+++ b/tfjs-node/src/image_test.ts
@@ -14,10 +14,12 @@
  * limitations under the License.
  * =============================================================================
  */
-import '@tensorflow/tfjs-backend-cpu';
-import {memory, setBackend, test_util} from '@tensorflow/tfjs';
+import {memory, registerBackend, setBackend, test_util} from '@tensorflow/tfjs';
+// tslint:disable-next-line: no-imports-from-dist
+import {TestKernelBackend} from '@tensorflow/tfjs-core/dist/jasmine_util';
 import * as fs from 'fs';
 import {promisify} from 'util';
+
 import {getImageType, ImageType} from './image';
 import * as tf from './index';
 
@@ -221,14 +223,18 @@ describe('decode images', () => {
 
   it('throw error if backend is not tensorflow', async done => {
     try {
-      setBackend('cpu');
+      const testBackend = new TestKernelBackend();
+      registerBackend('sync', () => testBackend);
+      setBackend('sync');
+
       const uint8array = await getUint8ArrayFromImage(
           'test_objects/images/image_png_test.png');
       tf.node.decodeImage(uint8array);
       done.fail();
     } catch (err) {
       expect(err.message)
-          .toBe('Expect the current backend to be "tensorflow", but got "cpu"');
+          .toBe(
+              'Expect the current backend to be "tensorflow", but got "sync"');
       setBackend('tensorflow');
       done();
     }
diff --git a/tfjs-node/src/nodejs_kernel_backend_test.ts b/tfjs-node/src/nodejs_kernel_backend_test.ts
index 44653247b87..63a98f3c1e6 100644
--- a/tfjs-node/src/nodejs_kernel_backend_test.ts
+++ b/tfjs-node/src/nodejs_kernel_backend_test.ts
@@ -16,6 +16,9 @@
  */
 
 import * as tf from '@tensorflow/tfjs';
+// tslint:disable-next-line: no-imports-from-dist
+import {TestKernelBackend} from '@tensorflow/tfjs-core/dist/jasmine_util';
+
 import {createTensorsTypeOpAttr, createTypeOpAttr, ensureTensorflowBackend, getTFDType, nodeBackend, NodeJSKernelBackend} from './nodejs_kernel_backend';
 
 describe('delayed upload', () => {
@@ -74,12 +77,16 @@ describe('Exposes Backend for internal Op execution.', () => {
 
   it('throw error if backend is not tensorflow', async done => {
     try {
-      tf.setBackend('cpu');
+      const testBackend = new TestKernelBackend();
+      tf.registerBackend('sync', () => testBackend);
+      tf.setBackend('sync');
+
       ensureTensorflowBackend();
       done.fail();
     } catch (err) {
       expect(err.message)
-          .toBe('Expect the current backend to be "tensorflow", but got "cpu"');
+          .toBe(
+              'Expect the current backend to be "tensorflow", but got "sync"');
       tf.setBackend('tensorflow');
       done();
     }
diff --git a/tfjs-node/yarn.lock b/tfjs-node/yarn.lock
index 337f4a4f7c6..2f2b7d8da14 100644
--- a/tfjs-node/yarn.lock
+++ b/tfjs-node/yarn.lock
@@ -90,10 +90,6 @@
     lodash "^4.17.13"
     to-fast-properties "^2.0.0"
 
-"@tensorflow/tfjs-backend-cpu@link:../tfjs-backend-cpu":
-  version "0.0.0"
-  uid ""
-
 "@tensorflow/tfjs-converter@link:../tfjs-converter":
   version "0.0.0"
   uid ""

From 3a1af919de281654ea1b765f4fcbaa1d7fce193d Mon Sep 17 00:00:00 2001
From: Na Li <linazhao@google.com>
Date: Wed, 15 Apr 2020 10:29:49 -0700
Subject: [PATCH 5/6] .

---
 tfjs-node/package.json | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/tfjs-node/package.json b/tfjs-node/package.json
index 4d8a5706ca4..16dd6f64de8 100644
--- a/tfjs-node/package.json
+++ b/tfjs-node/package.json
@@ -16,8 +16,6 @@
     "build-ci": "tsc && mkdir -p dist/proto && cp src/proto/api_pb.js dist/proto/api_pb.js",
     "build-core": "cd ../tfjs-core && yarn && yarn build",
     "build-core-ci": "cd ../tfjs-core && yarn && yarn build-ci",
-    "build-backend-cpu": "cd ../tfjs-backend-cpu && yarn && yarn build",
-    "build-backend-cpu-ci": "cd ../tfjs-backend-cpu && yarn && yarn build-ci",
     "build-layers": "cd ../tfjs-layers && yarn && yarn build",
     "build-layers-ci": "cd ../tfjs-layers && yarn && yarn build-ci",
     "build-converter": "cd ../tfjs-converter && yarn && yarn build",
@@ -26,8 +24,8 @@
     "build-data-ci": "cd ../tfjs-data && yarn && yarn build-ci",
     "build-union": "cd ../tfjs && yarn && yarn build",
     "build-union-ci": "cd ../tfjs && yarn && yarn build-ci",
-    "build-deps": "yarn build-core && yarn build-backend-cpu && yarn build-layers && yarn build-converter && yarn build-data && yarn build-union",
-    "build-deps-ci": "yarn build-core-ci && yarn build-backend-cpu-ci && yarn build-layers-ci && yarn build-converter-ci && yarn build-data-ci && yarn build-union-ci",
+    "build-deps": "yarn build-core && yarn build-layers && yarn build-converter && yarn build-data && yarn build-union",
+    "build-deps-ci": "yarn build-core-ci && yarn build-layers-ci && yarn build-converter-ci && yarn build-data-ci && yarn build-union-ci",
     "build-npm": "./scripts/build-npm.sh",
     "build-addon": "./scripts/build-and-upload-addon.sh",
     "build-addon-from-source": "node-pre-gyp install --build-from-source",

From 528e97b5c797c7a414412ed62acc0e8a2b317eac Mon Sep 17 00:00:00 2001
From: Na Li <linazhao@google.com>
Date: Wed, 15 Apr 2020 10:49:54 -0700
Subject: [PATCH 6/6] Rename to fake.

---
 tfjs-node/src/image_test.ts                 | 6 +++---
 tfjs-node/src/nodejs_kernel_backend_test.ts | 6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/tfjs-node/src/image_test.ts b/tfjs-node/src/image_test.ts
index b87076f5533..b3d2be05690 100644
--- a/tfjs-node/src/image_test.ts
+++ b/tfjs-node/src/image_test.ts
@@ -224,8 +224,8 @@ describe('decode images', () => {
   it('throw error if backend is not tensorflow', async done => {
     try {
       const testBackend = new TestKernelBackend();
-      registerBackend('sync', () => testBackend);
-      setBackend('sync');
+      registerBackend('fake', () => testBackend);
+      setBackend('fake');
 
       const uint8array = await getUint8ArrayFromImage(
           'test_objects/images/image_png_test.png');
@@ -234,7 +234,7 @@ describe('decode images', () => {
     } catch (err) {
       expect(err.message)
           .toBe(
-              'Expect the current backend to be "tensorflow", but got "sync"');
+              'Expect the current backend to be "tensorflow", but got "fake"');
       setBackend('tensorflow');
       done();
     }
diff --git a/tfjs-node/src/nodejs_kernel_backend_test.ts b/tfjs-node/src/nodejs_kernel_backend_test.ts
index 63a98f3c1e6..7a2aad4dde4 100644
--- a/tfjs-node/src/nodejs_kernel_backend_test.ts
+++ b/tfjs-node/src/nodejs_kernel_backend_test.ts
@@ -78,15 +78,15 @@ describe('Exposes Backend for internal Op execution.', () => {
   it('throw error if backend is not tensorflow', async done => {
     try {
       const testBackend = new TestKernelBackend();
-      tf.registerBackend('sync', () => testBackend);
-      tf.setBackend('sync');
+      tf.registerBackend('fake', () => testBackend);
+      tf.setBackend('fake');
 
       ensureTensorflowBackend();
       done.fail();
     } catch (err) {
       expect(err.message)
           .toBe(
-              'Expect the current backend to be "tensorflow", but got "sync"');
+              'Expect the current backend to be "tensorflow", but got "fake"');
       tf.setBackend('tensorflow');
       done();
     }