57 lines
1.6 KiB
JavaScript
57 lines
1.6 KiB
JavaScript
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var assert = require('assert');
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var denodeify = require('../');
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function myNodeStyleFunction(argument1, argument2, callback) {
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if (argument1 && argument2) {
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callback(null, argument1+argument2);
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} else {
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callback('Need both arguments');
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}
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}
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exports.basicDenodeify = function() {
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it('should resolve when there are no errors', function(done) {
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var myDenodeifiedNodeStyleFunction = denodeify(myNodeStyleFunction);
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myDenodeifiedNodeStyleFunction(1, 2)
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.then(function(result) {
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assert.equal(3, result);
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done();
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}, function() {
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throw new Error('Error callback called wrongly');
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});
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});
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it('should reject when there are errors', function(done) {
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var myDenodeifiedNodeStyleFunction = denodeify(myNodeStyleFunction);
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var promise = myDenodeifiedNodeStyleFunction(1, undefined);
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assert(promise instanceof Promise);
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promise
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.then(function(result) {
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throw new Error('A Promised myNodeStyleFunction with one argument should never resolve');
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}, function(error) {
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assert.equal(error, 'Need both arguments');
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done();
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});
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});
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};
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function multipleArgumentsNodeStyleFunction(callback) {
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callback(null, 'a', 'b');
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}
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function myFilter(err, a, b) {
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return [err, [a, b]];
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}
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exports.multipleArguments = function() {
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it('should pass multiple arguments to the next then', function(done) {
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var myDenodeifiedNodeStyleFunction = denodeify(multipleArgumentsNodeStyleFunction, myFilter);
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myDenodeifiedNodeStyleFunction()
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.then(function(results) {
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assert.equal(results[0], 'a');
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assert.equal(results[1], 'b');
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done();
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});
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});
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};
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