update to node 16

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

Author: crazy-max

__tests__/buildx.test.ts

@@ -1,8 +1,8 @@
+import {describe, expect, it, jest, test} from '@jest/globals';
 import * as fs from 'fs';
 import * as path from 'path';
 import * as semver from 'semver';
 import * as exec from '@actions/exec';
-
 import * as buildx from '../src/buildx';
 import * as context from '../src/context';
 
@@ -25,6 +25,19 @@ jest.spyOn(context, 'tmpNameSync').mockImplementation((): string => {
   return tmpNameSync;
 });
 
+export const skipItIf = (conditional: boolean) => (conditional ? it.skip : it);
+
+async function isDaemonRunning() {
+  return await exec
+    .getExecOutput(`docker`, ['version', '--format', '{{.Server.Os}}'], {
+      ignoreReturnCode: true,
+      silent: true
+    })
+    .then(res => {
+      return !res.stdout.includes(' ') && res.exitCode == 0;
+    });
+}
+
 describe('getImageID', () => {
   it('matches', async () => {
     const imageIDFile = await buildx.getImageIDFile();
@@ -104,7 +117,7 @@ describe('isLocalOrTarExporter', () => {
 });
 
 describe('isAvailable', () => {
-  const execSpy: jest.SpyInstance = jest.spyOn(exec, 'getExecOutput');
+  const execSpy = jest.spyOn(exec, 'getExecOutput');
   buildx.isAvailable();
 
   expect(execSpy).toHaveBeenCalledWith(`docker`, ['buildx'], {
@@ -114,17 +127,7 @@ describe('isAvailable', () => {
 });
 
 describe('getVersion', () => {
-  async function isDaemonRunning() {
-    return await exec
-      .getExecOutput(`docker`, ['version', '--format', '{{.Server.Os}}'], {
-        ignoreReturnCode: true,
-        silent: true
-      })
-      .then(res => {
-        return !res.stdout.includes(' ') && res.exitCode == 0;
-      });
-  }
-  (isDaemonRunning() ? it : it.skip)(
+  skipItIf(!isDaemonRunning())(
     'valid',
     async () => {
       const version = await buildx.getVersion();

__tests__/context.test.ts

@@ -1,3 +1,4 @@
+import {beforeEach, describe, expect, it, jest, test} from '@jest/globals';
 import * as fs from 'fs';
 import * as os from 'os';
 import * as path from 'path';
@@ -688,6 +689,7 @@ describe('asyncForEach', () => {
 
 describe('setOutput', () => {
   beforeEach(() => {
+    // @ts-ignore
     process.stdout.write = jest.fn();
   });
 
@@ -718,8 +720,10 @@ function setInput(name: string, value: string): void {
 
 // Assert that process.stdout.write calls called only with the given arguments.
 function assertWriteCalls(calls: string[]): void {
+  // @ts-ignore
   expect(process.stdout.write).toHaveBeenCalledTimes(calls.length);
   for (let i = 0; i < calls.length; i++) {
+    // @ts-ignore
     expect(process.stdout.write).toHaveBeenNthCalledWith(i + 1, calls[i]);
   }
 }

action.yml

@@ -95,6 +95,6 @@ outputs:
     description: 'Build result metadata'
 
 runs:
-  using: 'node12'
+  using: 'node16'
   main: 'dist/index.js'
   post: 'dist/index.js'