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31 lines
983 B
31 lines
983 B
8 years ago
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'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 cbTypeError = /^TypeError: "callback" argument must be a function$/;
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const callbackThrowValues = [null, true, false, 0, 1, 'foo', /foo/, [], {}];
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const warn = 'Calling an asynchronous function without callback is deprecated.';
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function testMakeStatsCallback(cb) {
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return function() {
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// fs.stat() calls makeStatsCallback() on its second argument
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fs.stat(__filename, cb);
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};
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}
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common.expectWarning('DeprecationWarning', warn);
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// Verify the case where a callback function is provided
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assert.doesNotThrow(testMakeStatsCallback(common.noop));
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// Passing undefined/nothing calls rethrow() internally, which emits a warning
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assert.doesNotThrow(testMakeStatsCallback());
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function invalidCallbackThrowsTests() {
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callbackThrowValues.forEach((value) => {
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assert.throws(testMakeStatsCallback(value), cbTypeError);
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});
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}
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invalidCallbackThrowsTests();
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