test: make import common as the first line

The `test/common` module has the capability to identify if any variable
is leaked to the global scope and fail the test. So that has to be
imported at the beginning.

PR-URL: #7786
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>

test/debugger/helper-debugger-repl.js

@@ -1,9 +1,9 @@
 'use strict';
-process.env.NODE_DEBUGGER_TIMEOUT = 2000;
-var common = require('../common');
+const common = require('../common');
 var assert = require('assert');
 var spawn = require('child_process').spawn;
 
+process.env.NODE_DEBUGGER_TIMEOUT = 2000;
 var port = common.PORT;
 
 var child;

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

@@ -1,8 +1,8 @@
 'use strict';
+const common = require('../common');
 const path = require('path');
 const assert = require('assert');
 const spawn = require('child_process').spawn;
-const common = require('../common');
 const debug = require('_debugger');
 
 var scenarios = [];

test/debugger/test-debugger-client.js

@@ -1,9 +1,9 @@
 'use strict';
-process.env.NODE_DEBUGGER_TIMEOUT = 2000;
-var common = require('../common');
+const common = require('../common');
 var assert = require('assert');
 var debug = require('_debugger');
 
+process.env.NODE_DEBUGGER_TIMEOUT = 2000;
 var debugPort = common.PORT;
 debug.port = debugPort;
 var spawn = require('child_process').spawn;

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

@@ -7,10 +7,10 @@
 // we also send packets to ourselves to verify that after receiving an error
 // we can still receive packets successfully.
 
+const common = require('../common');
 var ITERATIONS = 1000;
 
 var assert = require('assert'),
-    common = require('../common'),
     dgram = require('dgram');
 
 var buf = Buffer.alloc(1024, 42);

test/gc/test-http-client-connaborted.js

@@ -2,13 +2,14 @@
 // just like test/gc/http-client.js,
 // but aborting every connection that comes in.
 
+require('../common');
+
 function serverHandler(req, res) {
   res.connection.destroy();
 }
 
 const http = require('http');
 const weak = require('weak');
-require('../common');
 const assert = require('assert');
 const todo = 500;
 let done = 0;

test/gc/test-http-client-onerror.js

@@ -2,6 +2,8 @@
 // just like test/gc/http-client.js,
 // but with an on('error') handler that does nothing.
 
+require('../common');
+
 function serverHandler(req, res) {
   req.resume();
   res.writeHead(200, {'Content-Type': 'text/plain'});
@@ -10,7 +12,6 @@ function serverHandler(req, res) {
 
 const http = require('http');
 const weak = require('weak');
-require('../common');
 const assert = require('assert');
 const todo = 500;
 let done = 0;

test/gc/test-http-client-timeout.js

@@ -2,6 +2,8 @@
 // just like test/gc/http-client.js,
 // but with a timeout set
 
+require('../common');
+
 function serverHandler(req, res) {
   setTimeout(function() {
     req.resume();
@@ -12,7 +14,6 @@ function serverHandler(req, res) {
 
 const http = require('http');
 const weak = require('weak');
-require('../common');
 const assert = require('assert');
 const todo = 550;
 let done = 0;

test/gc/test-http-client.js

@@ -1,14 +1,15 @@
 'use strict';
 // just a simple http server and client.
 
+require('../common');
+
 function serverHandler(req, res) {
   res.writeHead(200, {'Content-Type': 'text/plain'});
   res.end('Hello World\n');
 }
 
 const http = require('http');
 const weak = require('weak');
-require('../common');
 const assert = require('assert');
 const todo = 500;
 let done = 0;

test/gc/test-net-timeout.js

@@ -2,6 +2,8 @@
 // just like test/gc/http-client-timeout.js,
 // but using a net server/client instead
 
+require('../common');
+
 function serverHandler(sock) {
   sock.setTimeout(120000);
   sock.resume();
@@ -19,7 +21,6 @@ function serverHandler(sock) {
 
 const net = require('net');
 const weak = require('weak');
-require('../common');
 const assert = require('assert');
 const todo = 500;
 let done = 0;

test/parallel/test-child-process-disconnect.js

@@ -1,6 +1,6 @@
 'use strict';
+const common = require('../common');
 var assert = require('assert');
-var common = require('../common');
 var fork = require('child_process').fork;
 var net = require('net');
 

test/parallel/test-child-process-flush-stdio.js

@@ -1,6 +1,6 @@
 'use strict';
-const cp = require('child_process');
 const common = require('../common');
+const cp = require('child_process');
 const assert = require('assert');
 
 // Windows' `echo` command is a built-in shell command and not an external

test/parallel/test-child-process-fork-close.js

@@ -1,6 +1,6 @@
 'use strict';
-const assert = require('assert');
 const common = require('../common');
+const assert = require('assert');
 const fork = require('child_process').fork;
 
 var cp = fork(common.fixturesDir + '/child-process-message-and-exit.js');

test/parallel/test-child-process-fork-dgram.js

@@ -13,10 +13,10 @@
  * and the test will fail.
  */
 
+const common = require('../common');
 var dgram = require('dgram');
 var fork = require('child_process').fork;
 var assert = require('assert');
-var common = require('../common');
 
 if (common.isWindows) {
   common.skip('Sending dgram sockets to child processes is ' +

test/parallel/test-child-process-fork-exec-path.js

@@ -1,8 +1,8 @@
 'use strict';
+const common = require('../common');
 var assert = require('assert');
 var fs = require('fs');
 var path = require('path');
-var common = require('../common');
 var msg = {test: 'this'};
 var nodePath = process.execPath;
 var copyPath = path.join(common.tmpDir, 'node-copy.exe');

test/parallel/test-child-process-fork-net2.js

@@ -1,6 +1,6 @@
 'use strict';
+const common = require('../common');
 var assert = require('assert');
-var common = require('../common');
 var fork = require('child_process').fork;
 var net = require('net');
 var count = 12;

test/parallel/test-child-process-spawn-typeerror.js

@@ -1,10 +1,10 @@
 'use strict';
+const common = require('../common');
 const assert = require('assert');
 const child_process = require('child_process');
 const spawn = child_process.spawn;
 const fork = child_process.fork;
 const execFile = child_process.execFile;
-const common = require('../common');
 const cmd = common.isWindows ? 'rundll32' : 'ls';
 const invalidcmd = 'hopefully_you_dont_have_this_on_your_machine';
 const invalidArgsMsg = /Incorrect value of args option/;

test/parallel/test-cli-syntax.js

@@ -1,11 +1,10 @@
 'use strict';
 
+const common = require('../common');
 const assert = require('assert');
 const spawnSync = require('child_process').spawnSync;
 const path = require('path');
 
-const common = require('../common');
-
 var node = process.execPath;
 
 // test both sets of arguments that check syntax

test/parallel/test-cluster-dgram-1.js

@@ -1,10 +1,10 @@
 'use strict';
+const common = require('../common');
 var NUM_WORKERS = 4;
 var PACKETS_PER_WORKER = 10;
 
 var assert = require('assert');
 var cluster = require('cluster');
-var common = require('../common');
 var dgram = require('dgram');
 
 

test/parallel/test-cluster-dgram-2.js

@@ -1,9 +1,9 @@
 'use strict';
+const common = require('../common');
 var NUM_WORKERS = 4;
 var PACKETS_PER_WORKER = 10;
 
 var cluster = require('cluster');
-var common = require('../common');
 var dgram = require('dgram');
 
 

test/parallel/test-cluster-worker-no-exit.js

@@ -1,8 +1,8 @@
 'use strict';
+const common = require('../common');
 var assert = require('assert');
 var cluster = require('cluster');
 var net = require('net');
-var common = require('../common');
 
 var destroyed;
 var success;

test/parallel/test-debugger-repeat-last.js

@@ -1,10 +1,8 @@
 'use strict';
+const common = require('../common');
 const path = require('path');
 const spawn = require('child_process').spawn;
 const assert = require('assert');
-
-const common = require('../common');
-
 const fixture = path.join(
   common.fixturesDir,
   'debugger-repeat-last.js'

test/parallel/test-debugger-util-regression.js

@@ -1,10 +1,9 @@
 'use strict';
+const common = require('../common');
 const path = require('path');
 const spawn = require('child_process').spawn;
 const assert = require('assert');
 
-const common = require('../common');
-
 const fixture = path.join(
   common.fixturesDir,
   'debugger-util-regression-fixture.js'

test/parallel/test-domain-with-abort-on-uncaught-exception.js

@@ -1,8 +1,8 @@
 'use strict';
 
+const common = require('../common');
 const assert = require('assert');
 const fs = require('fs');
-const common = require('../common');
 
 /*
  * The goal of this test is to make sure that:

test/parallel/test-fs-read-stream-fd.js

@@ -1,10 +1,8 @@
 'use strict';
+const common = require('../common');
 var fs = require('fs');
 var assert = require('assert');
 var path = require('path');
-
-var common = require('../common');
-
 var file = path.join(common.tmpDir, '/read_stream_fd_test.txt');
 var input = 'hello world';
 var output = '';

test/parallel/test-fs-readfile-unlink.js

@@ -1,6 +1,6 @@
 'use strict';
-const assert = require('assert');
 const common = require('../common');
+const assert = require('assert');
 const fs = require('fs');
 const path = require('path');
 const dirName = path.resolve(common.fixturesDir, 'test-readfile-unlink');

test/parallel/test-https-client-get-url.js

@@ -1,8 +1,8 @@
 'use strict';
+const common = require('../common');
 // disable strict server certificate validation by the client
 process.env.NODE_TLS_REJECT_UNAUTHORIZED = '0';
 
-var common = require('../common');
 var assert = require('assert');
 
 if (!common.hasCrypto) {

test/parallel/test-https-req-split.js

@@ -1,9 +1,8 @@
 'use strict';
+const common = require('../common');
 // disable strict server certificate validation by the client
 process.env.NODE_TLS_REJECT_UNAUTHORIZED = '0';
 
-var common = require('../common');
-
 if (!common.hasCrypto) {
   common.skip('missing crypto');
   return;

test/parallel/test-https-strict.js

@@ -1,8 +1,8 @@
 'use strict';
+const common = require('../common');
 // disable strict server certificate validation by the client
 process.env.NODE_TLS_REJECT_UNAUTHORIZED = '0';
 
-var common = require('../common');
 var assert = require('assert');
 
 if (!common.hasCrypto) {

test/parallel/test-path-makelong.js

@@ -1,7 +1,7 @@
 'use strict';
+const common = require('../common');
 var assert = require('assert');
 var path = require('path');
-var common = require('../common');
 
 if (common.isWindows) {
   var file = path.join(common.fixturesDir, 'a.js');

test/parallel/test-process-env.js

@@ -1,10 +1,10 @@
 'use strict';
 /* eslint-disable max-len */
 
+require('../common');
 // first things first, set the timezone; see tzset(3)
 process.env.TZ = 'Europe/Amsterdam';
 
-require('../common');
 var assert = require('assert');
 var spawn = require('child_process').spawn;
 

test/parallel/test-process-no-deprecation.js

@@ -4,9 +4,9 @@
 // The --no-warnings flag only supresses writing the warning to stderr, not the
 // emission of the corresponding event. This test file can be run without it.
 
+const common = require('../common');
 process.noDeprecation = true;
 
-const common = require('../common');
 const assert = require('assert');
 
 function listener() {

test/parallel/test-regress-GH-1899.js

@@ -1,8 +1,8 @@
 'use strict';
+const common = require('../common');
 var path = require('path');
 var assert = require('assert');
 var spawn = require('child_process').spawn;
-var common = require('../common');
 
 var child = spawn(process.argv[0], [
   path.join(common.fixturesDir, 'GH-1899-output.js')

test/parallel/test-repl-.save.load.js

@@ -1,8 +1,8 @@
 'use strict';
+const common = require('../common');
 var assert = require('assert');
 var join = require('path').join;
 var fs = require('fs');
-var common = require('../common');
 
 common.refreshTmpDir();
 

test/parallel/test-repl-timeout-throw.js

@@ -1,6 +1,6 @@
 'use strict';
+const common = require('../common');
 var assert = require('assert');
-var common = require('../common');
 
 var spawn = require('child_process').spawn;