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test: adding mustCall in test-fs-readfile-empty.js

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PR-URL: https://github.com/nodejs/node/pull/27455
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ouyang Yadong <oyydoibh@gmail.com>
This commit is contained in:
陈健 2019-04-28 16:46:28 +08:00 committed by oyyd
parent 578b31e14b
commit 9c2774e613
1 changed files with 8 additions and 9 deletions
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17
test/parallel/test-fs-readfile-empty.js
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@ -20,27 +20,26 @@
// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';
require('../common');
// Trivial test of fs.readFile on an empty file.
const assert = require('assert');
const common = require('../common');
const fs = require('fs');
const assert = require('assert');
const fixtures = require('../common/fixtures');
const fn = fixtures.path('empty.txt');
fs.readFile(fn, function(err, data) {
fs.readFile(fn, common.mustCall((err, data) => {
assert.ok(data);
});
}));
fs.readFile(fn, 'utf8', function(err, data) {
fs.readFile(fn, 'utf8', common.mustCall((err, data) => {
assert.strictEqual(data, '');
});
}));
fs.readFile(fn, { encoding: 'utf8' }, function(err, data) {
fs.readFile(fn, { encoding: 'utf8' }, common.mustCall((err, data) => {
assert.strictEqual(data, '');
});
}));
assert.ok(fs.readFileSync(fn));
assert.strictEqual(fs.readFileSync(fn, 'utf8'), '');