test: enable linting for tests

Enable linting for the test directory. A number of changes was made so
all tests conform the current rules used by lib and src directories. The
only exception for tests is that unreachable (dead) code is allowed.

test-fs-non-number-arguments-throw had to be excluded from the changes
because of a weird issue on Windows CI.

PR-URL: nodejs#1721
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

Conflicts:
	test/parallel/test-arm-math-exp-regress-1376.js
	test/parallel/test-net-dns-custom-lookup.js
	test/parallel/test-net-dns-lookup-skip.js
	test/parallel/test-repl-mode.js
	test/parallel/test-repl-options.js
	test/parallel/test-repl-tab.js
	test/parallel/test-util-inspect.js

.eslintignore

@@ -1 +1,4 @@
 lib/punycode.js
+test/fixtures
+test/**/node_modules
+test/parallel/test-fs-non-number-arguments-throw.js

.eslintrc

@@ -8,6 +8,7 @@ ecmaFeatures:
   octalLiterals: true
   binaryLiterals: true
   generators: true
+  forOf: true
 
 rules:
   # Possible Errors
@@ -54,6 +55,10 @@ rules:
   space-infix-ops: 2
   ## require spaces return, throw, case
   space-return-throw-case: 2
+  ## no space before function, eg. 'function()'
+  space-before-function-paren: [2, "never"]
+  ## require space before blocks, eg 'function() {'
+  space-before-blocks: [2, "always"]
   ## require parens for Constructor
   new-parens: 2
   ## max 80 length

Makefile

@@ -375,7 +375,7 @@ bench-idle:
 	./$(NODE_EXE) benchmark/idle_clients.js &
 
 jslint:
-	./$(NODE_EXE) tools/eslint/bin/eslint.js src lib --reset --quiet
+	./$(NODE_EXE) tools/eslint/bin/eslint.js src lib test --reset --quiet
 
 CPPLINT_EXCLUDE ?=
 CPPLINT_EXCLUDE += src/node_lttng.cc

test/.eslintrc

@@ -0,0 +1,5 @@
+## Test-specific linter rules
+
+rules:
+  ## allow unreachable code
+  no-unreachable: 0

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

@@ -1,15 +1,16 @@
+'use strict';
 var assert = require('assert');
 var binding = require('./build/Release/binding');
 var called = false;
 
-process.on('exit', function () {
+process.on('exit', function() {
   assert(called);
 });
 
-binding(5, function (err, val) {
+binding(5, function(err, val) {
   assert.equal(null, err);
   assert.equal(10, val);
-  process.nextTick(function () {
+  process.nextTick(function() {
     called = true;
   });
 });

test/addons/at-exit/test.js

@@ -1 +1,2 @@
+'use strict';
 var binding = require('./build/Release/binding');

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

@@ -1,3 +1,4 @@
+'use strict';
 var assert = require('assert');
 var binding = require('./build/Release/binding');
 assert.equal('world', binding());

test/addons/hello-world/test.js

@@ -1,3 +1,4 @@
+'use strict';
 var assert = require('assert');
 var binding = require('./build/Release/binding');
 assert.equal('world', binding.hello());

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

@@ -1,3 +1,4 @@
+'use strict';
 var assert = require('assert');
 var repl = require('repl');
 var stream = require('stream');

test/addons/smalloc-alloc/test.js

@@ -1,3 +1,4 @@
+'use strict';
 var assert = require('assert');
 var binding = require('./build/Release/binding');
 var obj = binding.alloc(16);

test/common.js

@@ -1,3 +1,4 @@
+'use strict';
 var path = require('path');
 var fs = require('fs');
 var assert = require('assert');
@@ -107,8 +108,8 @@ if (process.env.NODE_COMMON_PIPE) {
 if (process.platform === 'win32') {
   exports.faketimeCli = false;
 } else {
-  exports.faketimeCli = path.join(__dirname, "..", "tools", "faketime", "src",
-    "faketime");
+  exports.faketimeCli = path.join(__dirname, '..', 'tools', 'faketime', 'src',
+                                  'faketime');
 }
 
 var ifaces = os.networkInterfaces();
@@ -307,7 +308,7 @@ exports.mustCall = function(fn, expected) {
   var context = {
     expected: expected,
     actual: 0,
-    stack: (new Error).stack,
+    stack: (new Error()).stack,
     name: fn.name || '<anonymous>'
   };
 
@@ -345,11 +346,11 @@ if (process.platform === 'win32') {
  */
 exports.getServiceName = function getServiceName(port, protocol) {
   if (port == null) {
-    throw new Error("Missing port number");
+    throw new Error('Missing port number');
   }
 
   if (typeof protocol !== 'string') {
-    throw new Error("Protocol must be a string");
+    throw new Error('Protocol must be a string');
   }
 
   /*
@@ -360,10 +361,10 @@ exports.getServiceName = function getServiceName(port, protocol) {
 
   try {
     /*
-     * I'm not a big fan of readFileSync, but reading /etc/services asynchronously
-     * here would require implementing a simple line parser, which seems overkill
-     * for a simple utility function that is not running concurrently with any
-     * other one.
+     * I'm not a big fan of readFileSync, but reading /etc/services
+     * asynchronously here would require implementing a simple line parser,
+     * which seems overkill for a simple utility function that is not running
+     * concurrently with any other one.
      */
     var servicesContent = fs.readFileSync(etcServicesFileName,
       { encoding: 'utf8'});
@@ -380,7 +381,7 @@ exports.getServiceName = function getServiceName(port, protocol) {
   }
 
   return serviceName;
-}
+};
 
 exports.hasMultiLocalhost = function hasMultiLocalhost() {
   var TCP = process.binding('tcp_wrap').TCP;
@@ -397,7 +398,7 @@ exports.isValidHostname = function(str) {
     '(\\.([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\\-]{0,61}[a-zA-Z0-9]))*$');
 
   return !!str.match(re) && str.length <= 255;
-}
+};
 
 exports.fileExists = function(pathname) {
   try {

test/debugger/helper-debugger-repl.js

@@ -1,3 +1,4 @@
+'use strict';
 process.env.NODE_DEBUGGER_TIMEOUT = 2000;
 var common = require('../common');
 var assert = require('assert');
@@ -55,7 +56,7 @@ function startDebugger(scriptToDebug) {
     quitCalled = true;
     child.stdin.write('quit');
     child.kill('SIGTERM');
-  }
+  };
 
   setTimeout(function() {
     console.error('dying badly buffer=%j', buffer);

test/debugger/test-debug-break-on-uncaught.js

@@ -1,3 +1,4 @@
+'use strict';
 var path = require('path');
 var assert = require('assert');
 var spawn = require('child_process').spawn;
@@ -44,7 +45,7 @@ function runScenario(scriptName, throwsInFile, throwsOnLine, next) {
   child.on('close', function() {
     assert(asserted, 'debugger did not pause on exception');
     if (next) next();
-  })
+  });
 
   var exceptions = [];
 

test/debugger/test-debugger-client.js

@@ -1,3 +1,4 @@
+'use strict';
 process.env.NODE_DEBUGGER_TIMEOUT = 2000;
 var common = require('../common');
 var assert = require('assert');
@@ -66,7 +67,7 @@ var d = 'Content-Length: 466\r\n\r\n' +
         '{"seq":10,"type":"event","event":"afterCompile","success":true,' +
         '"body":{"script":{"handle":1,"type":"script","name":"dns.js",' +
         '"id":34,"lineOffset":0,"columnOffset":0,"lineCount":241,' +
-        '"sourceStart":"(function (module, exports, require) {' +
+        '"sourceStart":"(function(module, exports, require) {' +
         'var dns = process.binding(\'cares\')' +
         ';\\nvar ne","sourceLength":6137,"scriptType":2,"compilationType":0,' +
         '"context":{"ref":0},"text":"dns.js (lines: 241)"}},"refs":' +
@@ -127,8 +128,8 @@ addTest(function(client, done) {
 
 
 var connectCount = 0;
-var script = 'setTimeout(function () { console.log("blah"); });' +
-             'setInterval(function () {}, 1000000);';
+var script = 'setTimeout(function() { console.log("blah"); });' +
+             'setInterval(function() {}, 1000000);';
 
 var nodeProcess;
 

test/debugger/test-debugger-debug-brk.js

@@ -1,3 +1,4 @@
+'use strict';
 var common = require('../common');
 var assert = require('assert');
 var spawn = require('child_process').spawn;

test/debugger/test-debugger-remote.js

@@ -1,3 +1,4 @@
+'use strict';
 var common = require('../common');
 var assert = require('assert');
 var spawn = require('child_process').spawn;

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

@@ -1,3 +1,4 @@
+'use strict';
 var repl = require('./helper-debugger-repl.js');
 
 repl.startDebugger('break-in-module/main.js');

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

@@ -1,3 +1,4 @@
+'use strict';
 var repl = require('./helper-debugger-repl.js');
 
 repl.startDebugger('breakpoints.js');
@@ -7,7 +8,7 @@ var linesWithBreakpoint = [
 // We slice here, because addTest will change the given array.
 repl.addTest('sb(6)', linesWithBreakpoint.slice());
 
-var initialLines = repl.initialLines.slice()
+var initialLines = repl.initialLines.slice();
 initialLines.splice(2, 0, /Restoring/, /Warning/);
 
 // Restart the debugged script

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

@@ -1,3 +1,4 @@
+'use strict';
 process.env.NODE_FORCE_READLINE = 1;
 
 var repl = require('./helper-debugger-repl.js');

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

@@ -1,3 +1,4 @@
+'use strict';
 var common = require('../common');
 var script = common.fixturesDir + '/breakpoints_utf8.js';
 process.env.NODE_DEBUGGER_TEST_SCRIPT = script;

test/debugger/test-debugger-repl.js

@@ -1,3 +1,4 @@
+'use strict';
 var repl = require('./helper-debugger-repl.js');
 
 repl.startDebugger('breakpoints.js');

test/disabled/GH-670.js

@@ -1,3 +1,4 @@
+'use strict';
 var common = require('../common');
 var assert = require('assert');
 var https = require('https');

test/disabled/test-cat.js

@@ -1,3 +1,4 @@
+'use strict';
 var common = require('../common.js');
 var assert = require('assert');
 var http = require('http');

test/disabled/test-child-process-custom-fds.js

@@ -1,3 +1,4 @@
+'use strict';
 var common = require('../common');
 var assert = require('assert');
 

test/disabled/test-child-process-customfd-bounded.js

@@ -1,3 +1,4 @@
+'use strict';
 var common = require('../common');
 
 var bigish = Array(200);

test/disabled/test-child-process-uid-gid.js

@@ -1,3 +1,4 @@
+'use strict';
 var common = require('../common');
 var assert = require('assert');
 var spawn = require('child_process').spawn;

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

@@ -1,3 +1,4 @@
+'use strict';
 var common = require('../common');
 var assert = require('assert');
 var spawn = require('child_process').spawn;

test/disabled/test-debug-brk-no-arg.js

@@ -1,3 +1,4 @@
+'use strict';
 var common = require('../common');
 var assert = require('assert');
 var spawn = require('child_process').spawn;

test/disabled/test-dgram-multicast.js

@@ -1,3 +1,4 @@
+'use strict';
 var common = require('../common');
 var assert = require('assert');
 

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

@@ -1,3 +1,4 @@
+'use strict';
 // Some operating systems report errors when an UDP message is sent to an
 // unreachable host. This error can be reported by sendto() and even by
 // recvfrom(). Node should not propagate this error to the user.

test/disabled/test-dgram-unix-anon.js

@@ -1,3 +1,4 @@
+'use strict';
 var common = require('../common');
 var assert = require('assert');
 

test/disabled/test-dgram-unix.js

@@ -1,3 +1,4 @@
+'use strict';
 var common = require('../common');
 var assert = require('assert');
 

test/disabled/test-eio-race.js

@@ -1,3 +1,4 @@
+'use strict';
 var common = require('../common');
 var assert = require('assert');
 
@@ -36,7 +37,7 @@ function tryToKillEventLoop() {
 
 // Generate a lot of thread pool events
 var pos = 0;
-fs.open(filename, 'r', 0666, function(err, fd) {
+fs.open(filename, 'r', 0o666, function(err, fd) {
   if (err) throw err;
 
   function readChunk() {

test/disabled/test-eio-race2.js

@@ -1,3 +1,4 @@
+'use strict';
 var common = require('../common');
 var assert = require('assert');
 var path = require('path');

test/disabled/test-eio-race3.js

@@ -1,3 +1,4 @@
+'use strict';
 /* XXX Can this test be modified to not call the now-removed wait()? */
 
 var common = require('../common');

test/disabled/test-eio-race4.js

@@ -1,3 +1,4 @@
+'use strict';
 var common = require('../common');
 var assert = require('assert');
 var fs = require('fs');

test/disabled/test-fs-largefile.js

@@ -1,3 +1,4 @@
+'use strict';
 var common = require('../common');
 var assert = require('assert');
 var path = require('path'),

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

@@ -1,3 +1,4 @@
+'use strict';
 var common = require('../common');
 var assert = require('assert');
 

test/disabled/test-http-agent2.js

@@ -1,3 +1,4 @@
+'use strict';
 var common = require('../common');
 var assert = require('assert');
 var http = require('http');

test/disabled/test-http-big-proxy-responses.js

@@ -1,3 +1,4 @@
+'use strict';
 var common = require('../common');
 var assert = require('assert');
 var util = require('util'),

test/disabled/test-http-head-request.js

@@ -1,3 +1,4 @@
+'use strict';
 var common = require('../common');
 var assert = require('assert');
 

test/disabled/test-http-stress.js

@@ -1,3 +1,4 @@
+'use strict';
 var common = require('../common');
 var assert = require('assert');
 

test/disabled/test-http-tls.js

@@ -1,3 +1,4 @@
+'use strict';
 var common = require('../common');
 var assert = require('assert');