test: fix details in diff to node/master

Deleted files were deleted in node/master in 47f8f74.

Tests for GH-7849 and GH-5110 were moved from test-buffer-alloc to
test-buffer-tojson in f3dc6a3.

PR-URL: #233
Reviewed-By: Sandeep Agarwal <saagarwa@microsoft.com>
Reviewed-By: Kyle Farnung <kfarnung@microsoft.com>
Reviewed-By: Kunal Pathak <Kunal.Pathak@microsoft.com>

test/parallel/test-buffer-alloc.js

@@ -780,32 +780,6 @@ assert.strictEqual(Buffer.from('13.37').length, 5);
 // issue GH-3416
 Buffer.from(Buffer.allocUnsafe(0), 0, 0);
 
-// GH-5110
-{
-  const buffer = Buffer.from('test');
-  const string = JSON.stringify(buffer);
-
-  assert.strictEqual(string, '{"type":"Buffer","data":[116,101,115,116]}');
-
-  assert.deepStrictEqual(buffer, JSON.parse(string, (key, value) => {
-    return value && value.type === 'Buffer' ?
-      Buffer.from(value.data) :
-      value;
-  }));
-}
-
-// issue GH-7849
-{
-  const buf = Buffer.from('test');
-  const json = JSON.stringify(buf);
-  const obj = JSON.parse(json);
-  const copy = Buffer.from(obj);
-
-  assert(buf.equals(copy));
-}
-assert.throws(() => Buffer.allocUnsafe(0xFFFFFFFF), RangeError);
-assert.throws(() => Buffer.allocUnsafe(0xFFFFFFFFF), RangeError);
-
 // issue GH-5587
 assert.throws(() => Buffer.alloc(8).writeFloatLE(0, 5), RangeError);
 assert.throws(() => Buffer.alloc(16).writeDoubleLE(0, 9), RangeError);
@@ -934,7 +908,6 @@ assert.throws(() => Buffer.from('', 'buffer'),
   }
 }
 
-
 if (common.hasCrypto) {
   // Test truncation after decode
   const crypto = require('crypto');

test/parallel/test-buffer-slow.js

@@ -52,10 +52,10 @@ assert.strictEqual(SlowBuffer(NaN).length, 0);
 assert.strictEqual(SlowBuffer({}).length, 0);
 assert.strictEqual(SlowBuffer('string').length, 0);
 
+// should throw with invalid length
 assert.throws(function() {
   SlowBuffer(Infinity);
 }, common.bufferMaxSizeMsg);
-
 assert.throws(function() {
   SlowBuffer(-1);
 }, /^RangeError: "size" argument must not be negative$/);

test/parallel/test-child-process-double-pipe.js

@@ -27,7 +27,7 @@ const util = require('util');
 const spawn = require('child_process').spawn;
 
 // We're trying to reproduce:
-// $ echo "hello\nnode\nand\nworld" | grep o | sed s/o/O/
+// $ echo "hello\nnode\nand\nworld" | grep o | sed s/o/a/
 
 let grep, sed, echo;