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209 lines
6.4 KiB
209 lines
6.4 KiB
var assert = require('assert'); |
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var Buffers = require('../'); |
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function create (xs, split) { |
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var bufs = Buffers(); |
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var offset = 0; |
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split.forEach(function (i) { |
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bufs.push(new Buffer(xs.slice(offset, offset + i))); |
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offset += i; |
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}); |
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return bufs; |
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} |
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exports.slice = function () { |
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var xs = [0,1,2,3,4,5,6,7,8,9]; |
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var splits = [ [4,2,3,1], [2,2,2,2,2], [1,6,3,1], [9,2], [10], [5,5] ]; |
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splits.forEach(function (split) { |
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var bufs = create(xs, split); |
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assert.eql(new Buffer(xs), bufs.slice(), |
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'[' + xs.join(',') + ']' |
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+ ' != ' + |
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'[' + [].join.call(bufs.slice(), ',') + ']' |
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); |
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for (var i = 0; i < xs.length; i++) { |
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for (var j = i; j < xs.length; j++) { |
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var a = bufs.slice(i,j); |
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var b = new Buffer(xs.slice(i,j)); |
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assert.eql(a, b, |
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'[' + [].join.call(a, ',') + ']' |
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+ ' != ' + |
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'[' + [].join.call(b, ',') + ']' |
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); |
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} |
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} |
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}); |
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}; |
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exports.splice = function () { |
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var xs = [0,1,2,3,4,5,6,7,8,9]; |
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var splits = [ [4,2,3,1], [2,2,2,2,2], [1,6,3,1], [9,2], [10], [5,5] ]; |
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splits.forEach(function (split) { |
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for (var i = 0; i < xs.length; i++) { |
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for (var j = i; j < xs.length; j++) { |
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var bufs = create(xs, split); |
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var xs_ = xs.slice(); |
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var a_ = bufs.splice(i,j); |
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var a = [].slice.call(a_.slice()); |
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var b = xs_.splice(i,j); |
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assert.eql(a, b, |
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'[' + a.join(',') + ']' |
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+ ' != ' + |
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'[' + b.join(',') + ']' |
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); |
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assert.eql(bufs.slice(), new Buffer(xs_), |
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'[' + [].join.call(bufs.slice(), ',') + ']' |
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+ ' != ' + |
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'[' + [].join.call(xs_, ',') + ']' |
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); |
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} |
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} |
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}); |
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}; |
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exports.spliceRep = function () { |
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var xs = [0,1,2,3,4,5,6,7,8,9]; |
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var splits = [ [4,2,3,1], [2,2,2,2,2], [1,6,3,1], [9,2], [10], [5,5] ]; |
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var reps = [ [], [1], [5,6], [3,1,3,3,7], [9,8,7,6,5,4,3,2,1,2,3,4,5] ]; |
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splits.forEach(function (split) { |
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reps.forEach(function (rep) { |
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for (var i = 0; i < xs.length; i++) { |
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for (var j = i; j < xs.length; j++) { |
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var bufs = create(xs, split); |
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var xs_ = xs.slice(); |
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var a_ = bufs.splice.apply( |
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bufs, [ i, j ].concat(new Buffer(rep)) |
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); |
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var a = [].slice.call(a_.slice()); |
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var b = xs_.splice.apply(xs_, [ i, j ].concat(rep)); |
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assert.eql(a, b, |
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'[' + a.join(',') + ']' |
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+ ' != ' + |
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'[' + b.join(',') + ']' |
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); |
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assert.eql(bufs.slice(), new Buffer(xs_), |
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'[' + [].join.call(bufs.slice(), ',') + ']' |
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+ ' != ' + |
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'[' + [].join.call(xs_, ',') + ']' |
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); |
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} |
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} |
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}); |
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}); |
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}; |
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exports.copy = function () { |
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var xs = [0,1,2,3,4,5,6,7,8,9]; |
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var splits = [ [4,2,3,1], [2,2,2,2,2], [1,6,3,1], [9,2], [10], [5,5] ]; |
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splits.forEach(function (split) { |
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var bufs = create(xs, split); |
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var buf = new Buffer(xs); |
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for (var i = 0; i < xs.length; i++) { |
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for (var j = i; j < xs.length; j++) { |
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var t0 = new Buffer(j - i); |
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var t1 = new Buffer(j - i); |
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assert.eql( |
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bufs.copy(t0, 0, i, j), |
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buf.copy(t1, 0, i, j) |
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); |
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assert.eql( |
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[].slice.call(t0), |
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[].slice.call(t1) |
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); |
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} |
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} |
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}); |
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}; |
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exports.push = function () { |
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var bufs = Buffers(); |
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bufs.push(new Buffer([0])); |
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bufs.push(new Buffer([1,2,3])); |
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bufs.push(new Buffer([4,5])); |
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bufs.push(new Buffer([6,7,8,9])); |
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assert.eql( |
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[].slice.call(bufs.slice()), |
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[0,1,2,3,4,5,6,7,8,9] |
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); |
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assert.throws(function () { |
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bufs.push(new Buffer([11,12]), 'moo'); |
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}); |
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assert.eql(bufs.buffers.length, 4); |
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}; |
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exports.unshift = function () { |
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var bufs = Buffers(); |
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bufs.unshift(new Buffer([6,7,8,9])); |
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bufs.unshift(new Buffer([4,5])); |
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bufs.unshift(new Buffer([1,2,3])); |
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bufs.unshift(new Buffer([0])); |
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assert.eql( |
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[].slice.call(bufs.slice()), |
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[0,1,2,3,4,5,6,7,8,9] |
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); |
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assert.throws(function () { |
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bufs.unshift(new Buffer([-2,-1]), 'moo'); |
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}); |
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assert.eql(bufs.buffers.length, 4); |
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}; |
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exports.get = function () { |
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var bufs = Buffers(); |
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bufs.unshift(new Buffer([6,7,8,9])); |
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bufs.unshift(new Buffer([4,5])); |
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bufs.unshift(new Buffer([1,2,3])); |
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bufs.unshift(new Buffer([0])); |
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assert.eql( bufs.get(0), 0 ); |
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assert.eql( bufs.get(1), 1 ); |
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assert.eql( bufs.get(2), 2 ); |
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assert.eql( bufs.get(3), 3 ); |
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assert.eql( bufs.get(4), 4 ); |
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assert.eql( bufs.get(5), 5 ); |
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assert.eql( bufs.get(6), 6 ); |
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assert.eql( bufs.get(7), 7 ); |
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assert.eql( bufs.get(8), 8 ); |
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assert.eql( bufs.get(9), 9 ); |
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}; |
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exports.set = function () { |
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var bufs = Buffers(); |
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bufs.push(new Buffer("Hel")); |
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bufs.push(new Buffer("lo")); |
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bufs.push(new Buffer("!")); |
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bufs.set(0, 'h'.charCodeAt(0) ); |
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bufs.set(3, 'L'.charCodeAt(0) ); |
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bufs.set(5, '.'.charCodeAt(0) ); |
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assert.eql( bufs.slice(0).toString(), 'helLo.' ); |
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}; |
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exports.indexOf = function () { |
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var bufs = Buffers(); |
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bufs.push(new Buffer("Hel")); |
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bufs.push(new Buffer("lo,")); |
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bufs.push(new Buffer(" how are ")); |
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bufs.push(new Buffer("you")); |
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bufs.push(new Buffer("?")); |
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assert.eql( bufs.indexOf("Hello"), 0 ); |
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assert.eql( bufs.indexOf("Hello", 1), -1 ); |
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assert.eql( bufs.indexOf("ello"), 1 ); |
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assert.eql( bufs.indexOf("ello", 1), 1 ); |
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assert.eql( bufs.indexOf("ello", 2), -1 ); |
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assert.eql( bufs.indexOf("e"), 1 ); |
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assert.eql( bufs.indexOf("e", 2), 13 ); |
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assert.eql( bufs.indexOf(new Buffer([0x65]), 2), 13 ); |
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};
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