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79 lines
1.9 KiB
79 lines
1.9 KiB
var alloc = require('buffer-alloc') |
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var tape = require('tape') |
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var bitfield = require('./') |
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tape('set and get', function (t) { |
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var bits = bitfield() |
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t.same(bits.get(0), false, 'first bit is false') |
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bits.set(0, true) |
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t.same(bits.get(0), true, 'first bit is true') |
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t.same(bits.get(1), false, 'second bit is false') |
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bits.set(0, false) |
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t.same(bits.get(0), false, 'first bit is reset') |
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t.end() |
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}) |
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tape('set large and get', function (t) { |
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var bits = bitfield() |
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t.same(bits.get(9999999999999), false, 'large bit is false') |
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bits.set(9999999999999, true) |
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t.same(bits.get(9999999999999), true, 'large bit is true') |
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t.same(bits.get(9999999999999 + 1), false, 'large bit + 1 is false') |
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bits.set(9999999999999, false) |
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t.same(bits.get(9999999999999), false, 'large bit is reset') |
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t.end() |
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}) |
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tape('get and set buffer', function (t) { |
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var bits = bitfield({trackUpdates: true}) |
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t.same(bits.pages.get(0, true), undefined) |
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t.same(bits.pages.get(Math.floor(9999999999999 / 8 / 1024), true), undefined) |
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bits.set(9999999999999, true) |
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var bits2 = bitfield() |
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var upd = bits.pages.lastUpdate() |
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bits2.pages.set(Math.floor(upd.offset / 1024), upd.buffer) |
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t.same(bits2.get(9999999999999), true, 'bit is set') |
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t.end() |
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}) |
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tape('toBuffer', function (t) { |
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var bits = bitfield() |
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t.same(bits.toBuffer(), alloc(0)) |
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bits.set(0, true) |
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t.same(bits.toBuffer(), bits.pages.get(0).buffer) |
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bits.set(9000, true) |
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t.same(bits.toBuffer(), Buffer.concat([bits.pages.get(0).buffer, bits.pages.get(1).buffer])) |
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t.end() |
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}) |
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tape('pass in buffer', function (t) { |
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var bits = bitfield() |
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bits.set(0, true) |
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bits.set(9000, true) |
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var clone = bitfield(bits.toBuffer()) |
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t.same(clone.get(0), true) |
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t.same(clone.get(9000), true) |
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t.end() |
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}) |
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tape('set small buffer', function (t) { |
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var buf = alloc(1) |
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buf[0] = 255 |
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var bits = bitfield(buf) |
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t.same(bits.get(0), true) |
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t.same(bits.pages.get(0).buffer.length, bits.pageSize) |
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t.end() |
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})
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