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author | 2020-11-16 00:10:28 +0100 | |
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committer | 2020-11-16 00:10:28 +0100 | |
commit | e06ec920f7a5d784e674c4c4b4e6d1da3dc7391d (patch) | |
tree | 55713f725f77b44ebfec86e4eec3ce33e71458ca /node_modules/buffer/test/node/test-buffer-zero-fill-cli.js | |
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Diffstat (limited to 'node_modules/buffer/test/node/test-buffer-zero-fill-cli.js')
-rw-r--r-- | node_modules/buffer/test/node/test-buffer-zero-fill-cli.js | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/node_modules/buffer/test/node/test-buffer-zero-fill-cli.js b/node_modules/buffer/test/node/test-buffer-zero-fill-cli.js new file mode 100644 index 0000000..744b334 --- /dev/null +++ b/node_modules/buffer/test/node/test-buffer-zero-fill-cli.js @@ -0,0 +1,35 @@ +'use strict'; +var Buffer = require('../../').Buffer; + +// Flags: --zero-fill-buffers + +// when using --zero-fill-buffers, every Buffer and SlowBuffer +// instance must be zero filled upon creation + + +var SlowBuffer = require('../../').SlowBuffer; +var assert = require('assert'); + +function isZeroFilled(buf) { + for (var n = 0; n < buf.length; n++) + if (buf[n] > 0) return false; + return true; +} + +// This can be somewhat unreliable because the +// allocated memory might just already happen to +// contain all zeroes. The test is run multiple +// times to improve the reliability. +for (var i = 0; i < 50; i++) { + var bufs = [ + Buffer.alloc(20), + Buffer.allocUnsafe(20), + SlowBuffer(20), + Buffer(20), + new SlowBuffer(20) + ]; + for (var buf of bufs) { + assert(isZeroFilled(buf)); + } +} + |