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26 lines
744 B
26 lines
744 B
'use strict';
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const common = require('../common');
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const assert = require('assert');
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const fs = require('fs');
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const filename = common.tmpDir + '/truncate-file.txt';
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common.refreshTmpDir();
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// Synchronous test.
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{
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fs.writeFileSync(filename, '0123456789');
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assert.strictEqual(fs.readFileSync(filename).toString(), '0123456789');
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fs.truncateSync(filename, 5);
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assert.strictEqual(fs.readFileSync(filename).toString(), '01234');
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}
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// Asynchronous test.
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{
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fs.writeFileSync(filename, '0123456789');
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assert.strictEqual(fs.readFileSync(filename).toString(), '0123456789');
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fs.truncate(filename, 5, common.mustCall(function(err) {
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assert.ifError(err);
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assert.strictEqual(fs.readFileSync(filename).toString(), '01234');
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}));
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}
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