mirror of https://gitee.com/openkylin/nodejs.git
39 lines
1.3 KiB
JavaScript
39 lines
1.3 KiB
JavaScript
/* eslint-disable strict */
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require('../common');
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const assert = require('assert');
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const zlib = require('zlib');
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assert.strictEqual(zlib.constants.Z_OK, 0,
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[
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'Expected Z_OK to be 0;',
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`got ${zlib.constants.Z_OK}`
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].join(' '));
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zlib.constants.Z_OK = 1;
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assert.strictEqual(zlib.constants.Z_OK, 0,
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[
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'Z_OK should be immutable.',
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`Expected to get 0, got ${zlib.constants.Z_OK}`
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].join(' '));
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assert.strictEqual(zlib.codes.Z_OK, 0,
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`Expected Z_OK to be 0; got ${zlib.codes.Z_OK}`);
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zlib.codes.Z_OK = 1;
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assert.strictEqual(zlib.codes.Z_OK, 0,
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[
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'Z_OK should be immutable.',
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`Expected to get 0, got ${zlib.codes.Z_OK}`
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].join(' '));
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zlib.codes = { Z_OK: 1 };
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assert.strictEqual(zlib.codes.Z_OK, 0,
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[
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'Z_OK should be immutable.',
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`Expected to get 0, got ${zlib.codes.Z_OK}`
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].join(' '));
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assert.ok(Object.isFrozen(zlib.codes),
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[
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'Expected zlib.codes to be frozen, but Object.isFrozen',
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`returned ${Object.isFrozen(zlib.codes)}`
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].join(' '));
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