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我正在使用testdouble.js來測試幾個函數。對於下面的函數,我正在努力弄清楚如何最好地存儲get API調用,以覆蓋剩餘的函數。看起來應該是直截了當的,但我認爲我一直盯着它太久了。使用Testdouble.js存根API調用並解決承諾
var checkTags = function(tags) {
return new Promise(function(resolve) {
/* istanbul ignore if */
if (process.env.NODE_ENV !== 'test') {
console.log("Entered Check Tags");
}
var tagMSG;
var url = 'https://api.to.call/';
tags.Tags.forEach(function(uaiTag) {
tagMSG = uaiTag.Key === 'UAI' ? uaiTag.Value : 'No Tag';
});
console.log(tagMSG);
if (tagMSG === "No Tag") return resolve('FAILED');
request.get(url + tagMSG, function(error, response) {
var returnStatus = 'FAILED';
console.log(returnStatus);
if (!error && response.statusCode === 200) {
returnStatus = 'PASSED';
}
return resolve(returnStatus);
})
});
};
我的測試看起來像下面:
it('should resolve2', function(done) {
td.replace(request, 'get', function() {
return new Promise((resolve) => resolve('PASSED'));
});
var policy = require('../main/js-utils');
should(policy.checkTags(require('./data/tags.json'))).be.equal(new Promise((resolve) => resolve()));
});
而我收到的錯誤:
AssertionError: expected [Promise] to be [Promise]
+ expected - actual
{
- "_bitField": 0
+ "_bitField": 33554432
"_fulfillmentHandler0": [undefined]
"_promise0": [undefined]
"_receiver0": [undefined]
- "_rejectionHandler0": [undefined]
+ "_rejectionHandler0": "PASSED"
}