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