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: https://github.com/nodejs/io.js/pull/1721
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

1 files changed, 3 insertions, 2 deletions

diff --git a/test/parallel/test-buffer-slice.js b/test/parallel/test-buffer-slice.js
index 3d8f9c62d2..53434eab8e 100644
--- a/test/parallel/test-buffer-slice.js
+++ b/test/parallel/test-buffer-slice.js
@@ -1,3 +1,4 @@
+'use strict';
 var common = require('../common');
 var assert = require('assert');
 
@@ -7,5 +8,5 @@ var buff = new Buffer(Buffer.poolSize + 1);
 var slicedBuffer = buff.slice();
 assert.equal(slicedBuffer.parent,
              buff,
-             "slicedBufffer should have its parent set to the original " +
-             " buffer");
+             'slicedBufffer should have its parent set to the original ' +
+             ' buffer');