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21 lines
587 B
21 lines
587 B
'use strict';
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const common = require('../common');
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const assert = require('assert');
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const path = require('path');
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const fs = require('fs');
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const tmp = common.tmpDir;
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common.refreshTmpDir();
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const filename = path.resolve(tmp, 'truncate-file.txt');
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fs.writeFileSync(filename, 'hello world', 'utf8');
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const fd = fs.openSync(filename, 'r+');
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fs.truncate(fd, 5, common.mustCall(function(err) {
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assert.ok(!err);
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assert.strictEqual(fs.readFileSync(filename, 'utf8'), 'hello');
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}));
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process.on('exit', function() {
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fs.closeSync(fd);
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fs.unlinkSync(filename);
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console.log('ok');
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});
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