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146a9b1a8a
PR-URL: https://github.com/nodejs/node/pull/17483 Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Evan Lucas <evanlucas@me.com> Reviewed-By: James M Snell <jasnell@gmail.com>
47 lines
1.6 KiB
JavaScript
47 lines
1.6 KiB
JavaScript
'use strict';
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const common = require('../common');
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const assert = require('assert');
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const b = Buffer.alloc(1, 'a');
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const c = Buffer.alloc(1, 'c');
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const d = Buffer.alloc(2, 'aa');
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const e = new Uint8Array([ 0x61, 0x61 ]); // ASCII 'aa', same as d
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assert.strictEqual(b.compare(c), -1);
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assert.strictEqual(c.compare(d), 1);
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assert.strictEqual(d.compare(b), 1);
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assert.strictEqual(d.compare(e), 0);
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assert.strictEqual(b.compare(d), -1);
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assert.strictEqual(b.compare(b), 0);
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assert.strictEqual(Buffer.compare(b, c), -1);
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assert.strictEqual(Buffer.compare(c, d), 1);
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assert.strictEqual(Buffer.compare(d, b), 1);
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assert.strictEqual(Buffer.compare(b, d), -1);
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assert.strictEqual(Buffer.compare(c, c), 0);
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assert.strictEqual(Buffer.compare(e, e), 0);
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assert.strictEqual(Buffer.compare(d, e), 0);
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assert.strictEqual(Buffer.compare(d, b), 1);
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assert.strictEqual(Buffer.compare(Buffer.alloc(0), Buffer.alloc(0)), 0);
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assert.strictEqual(Buffer.compare(Buffer.alloc(0), Buffer.alloc(1)), -1);
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assert.strictEqual(Buffer.compare(Buffer.alloc(1), Buffer.alloc(0)), 1);
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const errMsg = common.expectsError({
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code: 'ERR_INVALID_ARG_TYPE',
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type: TypeError,
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message: 'The "buf1", "buf2" arguments must be one of ' +
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'type Buffer or Uint8Array'
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}, 2);
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assert.throws(() => Buffer.compare(Buffer.alloc(1), 'abc'), errMsg);
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assert.throws(() => Buffer.compare('abc', Buffer.alloc(1)), errMsg);
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common.expectsError(() => Buffer.alloc(1).compare('abc'), {
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code: 'ERR_INVALID_ARG_TYPE',
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type: TypeError,
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message: 'The "target" argument must be one of ' +
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'type Buffer or Uint8Array. Received type string'
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});
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