test: use const for all require() calls

PR-URL: nodejs#10550
Reviewed-By: Rich Trott <rtrott@gmail.com>

test/addons/async-hello-world/test.js

@@ -1,6 +1,6 @@
 'use strict';
 const common = require('../../common');
-var assert = require('assert');
+const assert = require('assert');
 const binding = require(`./build/${common.buildType}/binding`);
 
 binding(5, common.mustCall(function(err, val) {

test/addons/hello-world-function-export/test.js

@@ -1,6 +1,6 @@
 'use strict';
 const common = require('../../common');
-var assert = require('assert');
+const assert = require('assert');
 const binding = require(`./build/${common.buildType}/binding`);
 assert.strictEqual(binding(), 'world');
 console.log('binding.hello() =', binding());

test/addons/hello-world/test.js

@@ -1,6 +1,6 @@
 'use strict';
 const common = require('../../common');
-var assert = require('assert');
+const assert = require('assert');
 const binding = require(`./build/${common.buildType}/binding`);
 assert.strictEqual(binding.hello(), 'world');
 console.log('binding.hello() =', binding.hello());

test/addons/load-long-path/test.js

@@ -32,6 +32,6 @@ var contents = fs.readFileSync(addonPath);
 fs.writeFileSync(addonDestinationPath, contents);
 
 // Attempt to load at long path destination
-var addon = require(addonDestinationPath);
+const addon = require(addonDestinationPath);
 assert.notEqual(addon, null);
 assert.strictEqual(addon.hello(), 'world');

test/addons/repl-domain-abort/test.js

@@ -1,9 +1,9 @@
 'use strict';
-var common = require('../../common');
-var assert = require('assert');
-var repl = require('repl');
-var stream = require('stream');
-var path = require('path');
+const common = require('../../common');
+const assert = require('assert');
+const repl = require('repl');
+const stream = require('stream');
+const path = require('path');
 var buildType = process.config.target_defaults.default_configuration;
 var buildPath = path.join(__dirname, 'build', buildType, 'binding');
 // On Windows, escape backslashes in the path before passing it to REPL.

test/debugger/helper-debugger-repl.js

@@ -1,7 +1,7 @@
 'use strict';
 const common = require('../common');
-var assert = require('assert');
-var spawn = require('child_process').spawn;
+const assert = require('assert');
+const spawn = require('child_process').spawn;
 
 process.env.NODE_DEBUGGER_TIMEOUT = 2000;
 var port = common.PORT;

test/debugger/test-debugger-repl-break-in-module.js

@@ -1,6 +1,6 @@
 'use strict';
 require('../common');
-var repl = require('./helper-debugger-repl.js');
+const repl = require('./helper-debugger-repl.js');
 
 repl.startDebugger('break-in-module/main.js');
 

test/debugger/test-debugger-repl-restart.js

@@ -1,6 +1,6 @@
 'use strict';
 require('../common');
-var repl = require('./helper-debugger-repl.js');
+const repl = require('./helper-debugger-repl.js');
 
 repl.startDebugger('breakpoints.js');
 var linesWithBreakpoint = [

test/debugger/test-debugger-repl-term.js

@@ -2,7 +2,7 @@
 require('../common');
 process.env.NODE_FORCE_READLINE = 1;
 
-var repl = require('./helper-debugger-repl.js');
+const repl = require('./helper-debugger-repl.js');
 
 repl.startDebugger('breakpoints.js');
 

test/debugger/test-debugger-repl-utf8.js

@@ -1,5 +1,5 @@
 'use strict';
-var common = require('../common');
+const common = require('../common');
 var script = common.fixturesDir + '/breakpoints_utf8.js';
 process.env.NODE_DEBUGGER_TEST_SCRIPT = script;
 

test/debugger/test-debugger-repl.js

@@ -1,6 +1,6 @@
 'use strict';
 require('../common');
-var repl = require('./helper-debugger-repl.js');
+const repl = require('./helper-debugger-repl.js');
 
 repl.startDebugger('breakpoints.js');
 

test/disabled/test-debug-brk-file.js

@@ -1,9 +1,9 @@
 'use strict';
-var common = require('../common');
-var assert = require('assert');
-var spawn = require('child_process').spawn;
-var path = require('path');
-var net = require('net');
+const common = require('../common');
+const assert = require('assert');
+const spawn = require('child_process').spawn;
+const path = require('path');
+const net = require('net');
 
 var isDone = false;
 var targetPath = path.resolve(common.fixturesDir, 'debug-target.js');

test/disabled/test-dgram-send-error.js

@@ -10,7 +10,7 @@
 const common = require('../common');
 var ITERATIONS = 1000;
 
-var assert = require('assert'),
+const assert = require('assert'),
     dgram = require('dgram');
 
 var buf = Buffer.alloc(1024, 42);

test/disabled/test-fs-largefile.js

@@ -1,7 +1,7 @@
 'use strict';
-var common = require('../common');
-var assert = require('assert');
-var path = require('path'),
+const common = require('../common');
+const assert = require('assert');
+const path = require('path'),
     fs = require('fs'),
     filepath = path.join(common.tmpDir, 'large.txt'),
     fd = fs.openSync(filepath, 'w+'),

test/disabled/test-http-abort-stream-end.js

@@ -1,8 +1,8 @@
 'use strict';
-var common = require('../common');
-var assert = require('assert');
+const common = require('../common');
+const assert = require('assert');
 
-var http = require('http');
+const http = require('http');
 
 var maxSize = 1024;
 var size = 0;

test/disabled/test-https-loop-to-google.js

@@ -5,8 +5,8 @@
 // Tested on node 0.5.0-pre commit 9851574
 
 
-var common = require('../common');
-var https = require('https');
+const common = require('../common');
+const https = require('https');
 
 for (var i = 0; i < 10; ++i) {
   https.get({

test/disabled/test-readline.js

@@ -1,9 +1,9 @@
 'use strict';
 // Can't test this when 'make test' doesn't assign a tty to the stdout.
 // Yet another use-case for require('tty').spawn ?
-var common = require('../common');
-var assert = require('assert');
-var readline = require('readline');
+const common = require('../common');
+const assert = require('assert');
+const readline = require('readline');
 
 var key = {
   xterm: {

test/disabled/test-sendfd.js

@@ -26,15 +26,15 @@
 //     seen in a response yet. This is intended to ensure that all blobs
 //     sent out have been relayed back to us.
 
-var common = require('../common');
-var assert = require('assert');
+const common = require('../common');
+const assert = require('assert');
 
-var buffer = require('buffer');
-var child_process = require('child_process');
-var fs = require('fs');
-var net = require('net');
+const buffer = require('buffer');
+const child_process = require('child_process');
+const fs = require('fs');
+const net = require('net');
 var netBinding = process.binding('net');
-var path = require('path');
+const path = require('path');
 
 var DATA = {
   'ppid' : process.pid,

test/disabled/test-setuidgid.js

@@ -1,7 +1,7 @@
 'use strict';
 // Requires special privileges
-var common = require('../common');
-var assert = require('assert');
+const common = require('../common');
+const assert = require('assert');
 
 var oldgid = process.getgid();
 process.setgid('nobody');

test/disabled/tls_server.js

@@ -1,11 +1,11 @@
 'use strict';
-var common = require('../common');
-var assert = require('assert');
+const common = require('../common');
+const assert = require('assert');
 
-var util = require('util');
-var net = require('net');
-var fs = require('fs');
-var crypto = require('crypto');
+const util = require('util');
+const net = require('net');
+const fs = require('fs');
+const crypto = require('crypto');
 
 var keyPem = fs.readFileSync(common.fixturesDir + '/cert.pem');
 var certPem = fs.readFileSync(common.fixturesDir + '/cert.pem');

test/fixtures/GH-892-request.js

@@ -1,8 +1,8 @@
 // Called by test/pummel/test-regress-GH-892.js
 
-var https = require('https');
-var fs = require('fs');
-var assert = require('assert');
+const https = require('https');
+const fs = require('fs');
+const assert = require('assert');
 
 var PORT = parseInt(process.argv[2]);
 var bytesExpected = parseInt(process.argv[3]);

test/fixtures/a.js

@@ -1,4 +1,4 @@
-var c = require('./b/c');
+const c = require('./b/c');
 
 console.error('load fixtures/a.js');
 

test/fixtures/a1.js

@@ -1,4 +1,4 @@
-var c = require('./b/c');
+const c = require('./b/c');
 
 console.error('load fixtures/a.js');
 

test/fixtures/b/c.js

@@ -1,8 +1,8 @@
-var d = require('./d');
+const d = require('./d');
 
-var assert = require('assert');
+const assert = require('assert');
 
-var package = require('./package');
+const package = require('./package');
 
 assert.equal('world', package.hello);
 

test/fixtures/break-in-module/main.js

@@ -1,4 +1,4 @@
-var mod = require('./mod.js');
+const mod = require('./mod.js');
 mod.hello();
 mod.hello();
 debugger;

test/fixtures/child-process-spawn-node.js

@@ -1,4 +1,4 @@
-var assert = require('assert');
+const assert = require('assert');
 
 function onmessage(m) {
   console.log('CHILD got message:', m);

test/fixtures/child_process_should_emit_error.js

@@ -1,4 +1,4 @@
-var exec = require('child_process').exec;
+const exec = require('child_process').exec;
 
 [0, 1].forEach(function(i) {
   exec('ls', function(err, stdout, stderr) {

test/fixtures/cluster-preload-test.js

@@ -1,4 +1,4 @@
-var cluster = require('cluster');
+const cluster = require('cluster');
 if (cluster.isMaster) {
   cluster.fork(); // one child
   cluster.on('exit', function(worker, code, signal) {

test/fixtures/cluster-preload.js

@@ -1,12 +1,12 @@
-var assert = require('assert');
+const assert = require('assert');
 
 // https://github.com/nodejs/node/issues/1803
 // this module is used as a preload module. It should have a parent with the
 // module search paths initialized from the current working directory
 assert.ok(module.parent);
-var expectedPaths = require('module')._nodeModulePaths(process.cwd());
+const expectedPaths = require('module')._nodeModulePaths(process.cwd());
 assert.deepEqual(module.parent.paths, expectedPaths);
 
-var cluster = require('cluster');
+const cluster = require('cluster');
 cluster.isMaster || process.exit(42 + cluster.worker.id); // +42 to distinguish
 // from exit(1) for other random reasons

test/fixtures/create-file.js

@@ -1,4 +1,4 @@
-var fs = require('fs');
+const fs = require('fs');
 
 var file_name = process.argv[2];
 var file_size = parseInt(process.argv[3]);

test/fixtures/cycles/folder/foo.js

@@ -1,4 +1,4 @@
-var root = require('./../root');
+const root = require('./../root');
 
 exports.hello = function() {
   return root.calledFromFoo();

test/fixtures/cycles/root.js

@@ -1,4 +1,4 @@
-var foo = exports.foo = require('./folder/foo');
+const foo = exports.foo = require('./folder/foo');
 
 exports.hello = 'hello';
 exports.sayHello = function() {

test/fixtures/echo-close-check.js

@@ -1,7 +1,7 @@
-var common = require('../common');
-var assert = require('assert');
-var net = require('net');
-var fs = require('fs');
+const common = require('../common');
+const assert = require('assert');
+const net = require('net');
+const fs = require('fs');
 
 process.stdout.write('hello world\r\n');
 

test/fixtures/echo.js

@@ -1,5 +1,5 @@
-var common = require('../common');
-var assert = require('assert');
+const common = require('../common');
+const assert = require('assert');
 
 process.stdout.write('hello world\r\n');
 

test/fixtures/listen-on-socket-and-exit.js

@@ -1,7 +1,7 @@
 // child process that listens on a socket, allows testing of an EADDRINUSE condition
 
-var common = require('../common');
-var net = require('net');
+const common = require('../common');
+const net = require('net');
 
 common.refreshTmpDir();
 

test/fixtures/module-require/parent/index.js

@@ -1,4 +1,4 @@
-var child = require('../child');
+const child = require('../child');
 //console.log(child.module.require, child.module);
 console.log(child.module.require('target'));
 console.log(child.loaded);

test/fixtures/not-main-module.js

@@ -1,4 +1,4 @@
-var assert = require('assert');
+const assert = require('assert');
 assert.notEqual(module, require.main, 'require.main should not == module');
 assert.notEqual(module, process.mainModule,
                 'process.mainModule should not === module');

test/fixtures/parent-process-nonpersistent.js

@@ -1,5 +1,5 @@
 
-var spawn = require('child_process').spawn,
+const spawn = require('child_process').spawn,
     path = require('path'),
     childPath = path.join(__dirname, 'child-process-persistent.js');
 

test/fixtures/path-resolve.js

@@ -1,4 +1,4 @@
 // Tests resolving a path in the context of a spawned process.
 // See https://github.com/nodejs/node/issues/7215
-var path = require('path');
+const path = require('path');
 console.log(path.resolve(process.argv[2]));

test/fixtures/path.js

@@ -1,5 +1,5 @@
 // This is actually more a fixture than a test. It is used to make
-var common = require('../common');
+const common = require('../common');
 // sure that require('./path') and require('path') do different things.
 // It has to be in the same directory as the test 'test-module-loading.js'
 // and it has to have the same name as an internal module.

test/fixtures/print-chars-from-buffer.js

@@ -1,4 +1,4 @@
-var assert = require('assert');
+const assert = require('assert');
 
 var n = parseInt(process.argv[2]);