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author | 2020-11-18 23:26:45 +0100 | |
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committer | 2020-11-18 23:26:45 +0100 | |
commit | 81ddf9b700bc48a1f8e472209f080f9c1d9a9b09 (patch) | |
tree | 8b959d50c5a614cbf9fcb346ed556140374d4b6d /node_modules/buffer/test/node/test-buffer-swap.js | |
parent | 1870f3fdf43707a15fda0f609a021f516f45eb63 (diff) | |
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rm node_modules
Diffstat (limited to 'node_modules/buffer/test/node/test-buffer-swap.js')
-rw-r--r-- | node_modules/buffer/test/node/test-buffer-swap.js | 141 |
1 files changed, 0 insertions, 141 deletions
diff --git a/node_modules/buffer/test/node/test-buffer-swap.js b/node_modules/buffer/test/node/test-buffer-swap.js deleted file mode 100644 index 2ec1a7a..0000000 --- a/node_modules/buffer/test/node/test-buffer-swap.js +++ /dev/null @@ -1,141 +0,0 @@ -'use strict'; -var Buffer = require('../../').Buffer; - - - -var assert = require('assert'); - -// Test buffers small enough to use the JS implementation -var buf = Buffer.from([0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, - 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10]); - -assert.strictEqual(buf, buf.swap16()); -assert.deepStrictEqual(buf, Buffer.from([0x02, 0x01, 0x04, 0x03, 0x06, 0x05, - 0x08, 0x07, 0x0a, 0x09, 0x0c, 0x0b, - 0x0e, 0x0d, 0x10, 0x0f])); -buf.swap16(); // restore - -assert.strictEqual(buf, buf.swap32()); -assert.deepStrictEqual(buf, Buffer.from([0x04, 0x03, 0x02, 0x01, 0x08, 0x07, - 0x06, 0x05, 0x0c, 0x0b, 0x0a, 0x09, - 0x10, 0x0f, 0x0e, 0x0d])); -buf.swap32(); // restore - -assert.strictEqual(buf, buf.swap64()); -assert.deepStrictEqual(buf, Buffer.from([0x08, 0x07, 0x06, 0x05, 0x04, 0x03, - 0x02, 0x01, 0x10, 0x0f, 0x0e, 0x0d, - 0x0c, 0x0b, 0x0a, 0x09])); - -// Operates in-place -var buf3 = Buffer.from([0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7]); -buf3.slice(1, 5).swap32(); -assert.deepStrictEqual(buf3, Buffer.from([0x1, 0x5, 0x4, 0x3, 0x2, 0x6, 0x7])); - -buf3.slice(1, 5).swap16(); -assert.deepStrictEqual(buf3, Buffer.from([0x1, 0x4, 0x5, 0x2, 0x3, 0x6, 0x7])); - -var buf3_64 = Buffer.from([0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, - 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, - 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, - 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10]); -buf3_64.slice(2, 18).swap64(); -assert.deepStrictEqual(buf3_64, Buffer.from([0x01, 0x02, 0x0a, 0x09, 0x08, 0x07, - 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, - 0x10, 0x0f, 0x0e, 0x0d, 0x0c, 0x0b, - 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, - 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, - 0x0f, 0x10])); - -// Force use of native code (Buffer size above threshold limit for js impl) -var buf4A = new Uint32Array(256).fill(0x04030201); -var buf4 = Buffer.from(buf4A.buffer, buf4A.byteOffset); -var buf5A = new Uint32Array(256).fill(0x03040102); -var buf5 = Buffer.from(buf5A.buffer, buf5A.byteOffset); - -buf4.swap16(); -assert.deepStrictEqual(buf4, buf5); - -var buf6A = new Uint32Array(256).fill(0x04030201); -var buf6 = Buffer.from(buf6A.buffer); -var bu7A = new Uint32Array(256).fill(0x01020304); -var buf7 = Buffer.from(bu7A.buffer, bu7A.byteOffset); - -buf6.swap32(); -assert.deepStrictEqual(buf6, buf7); - -var buf8A = new Uint8Array(256 * 8); -var buf9A = new Uint8Array(256 * 8); -for (var i = 0; i < buf8A.length; i++) { - buf8A[i] = i % 8; - buf9A[buf9A.length - i - 1] = i % 8; -} -var buf8 = Buffer.from(buf8A.buffer, buf8A.byteOffset); -var buf9 = Buffer.from(buf9A.buffer, buf9A.byteOffset); - -buf8.swap64(); -assert.deepStrictEqual(buf8, buf9); - -// Test native code with buffers that are not memory-aligned -var buf10A = new Uint8Array(256 * 8); -var buf11A = new Uint8Array(256 * 8 - 2); -for (var i = 0; i < buf10A.length; i++) { - buf10A[i] = i % 2; -} -for (var i = 1; i < buf11A.length; i++) { - buf11A[buf11A.length - i] = (i + 1) % 2; -} -var buf10 = Buffer.from(buf10A.buffer, buf10A.byteOffset); -// 0|1 0|1 0|1... -var buf11 = Buffer.from(buf11A.buffer, buf11A.byteOffset); -// 0|0 1|0 1|0... - -buf10.slice(1, buf10.length - 1).swap16(); -assert.deepStrictEqual(buf10.slice(0, buf11.length), buf11); - - -var buf12A = new Uint8Array(256 * 8); -var buf13A = new Uint8Array(256 * 8 - 4); -for (var i = 0; i < buf12A.length; i++) { - buf12A[i] = i % 4; -} -for (var i = 1; i < buf13A.length; i++) { - buf13A[buf13A.length - i] = (i + 1) % 4; -} -var buf12 = Buffer.from(buf12A.buffer, buf12A.byteOffset); -// 0|1 2 3 0|1 2 3... -var buf13 = Buffer.from(buf13A.buffer, buf13A.byteOffset); -// 0|0 3 2 1|0 3 2... - -buf12.slice(1, buf12.length - 3).swap32(); -assert.deepStrictEqual(buf12.slice(0, buf13.length), buf13); - - -var buf14A = new Uint8Array(256 * 8); -var buf15A = new Uint8Array(256 * 8 - 8); -for (var i = 0; i < buf14A.length; i++) { - buf14A[i] = i % 8; -} -for (var i = 1; i < buf15A.length; i++) { - buf15A[buf15A.length - i] = (i + 1) % 8; -} -var buf14 = Buffer.from(buf14A.buffer, buf14A.byteOffset); -// 0|1 2 3 4 5 6 7 0|1 2 3 4... -var buf15 = Buffer.from(buf15A.buffer, buf15A.byteOffset); -// 0|0 7 6 5 4 3 2 1|0 7 6 5... - -buf14.slice(1, buf14.length - 7).swap64(); -assert.deepStrictEqual(buf14.slice(0, buf15.length), buf15); - -// Length assertions -var re16 = /Buffer size must be a multiple of 16-bits/; -var re32 = /Buffer size must be a multiple of 32-bits/; -var re64 = /Buffer size must be a multiple of 64-bits/; - -assert.throws(() => Buffer.from(buf3).swap16(), re16); -assert.throws(() => Buffer.alloc(1025).swap16(), re16); -assert.throws(() => Buffer.from(buf3).swap32(), re32); -assert.throws(() => buf3.slice(1, 3).swap32(), re32); -assert.throws(() => Buffer.alloc(1025).swap32(), re32); -assert.throws(() => buf3.slice(1, 3).swap64(), re64); -assert.throws(() => Buffer.alloc(1025).swap64(), re64); - |