redoc/tests/e2e/helpers.js

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'use strict';
var https = require('https');
function loadJson(url) {
let promise = new Promise((resolve, reject) => {
https.get(url, function(res){
var body = '';
res.on('data', function(chunk){
body += chunk;
});
res.on('end', function(){
let resp = JSON.parse(body);
resolve(resp);
});
}).on('error', function(e){
reject(e);
});
});
return promise;
}
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const LogLevel = {
INFO: 800,
WARNING: 900
};
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const MAX_ERROR_MESSAGE_SYMBOLS = 128;
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//copied from angular/modules/angular2/src/testing/e2e_util.ts
function verifyNoBrowserErrors() {
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// IE doesn't support logs method
if (browser.isIE) {
let err = browser.executeScript('return window.redocError');
expect(err).toBeNull();
return;
}
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// Bug in ChromeDriver: Need to execute at least one command
// so that the browser logs can be read out!
browser.executeScript('1+1');
browser.manage().logs().get('browser').then(function(browserLog) {
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let filteredLog = browserLog.filter((logEntry) => {
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let message = logEntry.message;
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// skip browser-sync errors
if (message.indexOf('browser-sync') > -1) return false;
// skip firefox-specific warning
if (message.indexOf('mutating the [[Prototype]]') > -1) return false;
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if (message.match(/^Unknown property.*Declaration dropped/)) return false;
if (message.match(/^Error in parsing value for.*Declaration dropped/)) return false;
if (message.indexOf('The character encoding of the HTML document was not declared') > -1) return false;
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if (message.match(/^\d{13}\s+(DeferredSave|addons)/)) return false;
if (message.match(/This site makes use of a SHA-1 Certificate/)) return false;
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if (logEntry.level.value >= LogLevel.INFO) {
if (message.length > MAX_ERROR_MESSAGE_SYMBOLS) {
message = message.substr(0, MAX_ERROR_MESSAGE_SYMBOLS) + '...';
}
console.log('>> ' + message);
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}
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return logEntry.level.value > LogLevel.WARNING;
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});
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expect(filteredLog.length).toEqual(0, `Found ${filteredLog.length} browser errors`);
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});
}
function scrollToEl(selector) {
let script = `
document.querySelector('${selector}').scrollIntoView(true);
window.scrollBy(0, 200);
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`;
return browser.driver.executeScript(script);
}
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function fixFFTest(done) {
// firefox issue. the first try to access something from webpage fails
// but the second works fine. So skipping first error
$('body').isPresent().then(()=> {
done();
}, () => {
//error skipped
done();
})
}
/* picks each n-th property from object */
function eachNth(obj, n) {
let res = {};
Object.keys(obj).forEach((k, idx) => {
if (idx % n === 0) {
res[k] = obj[k];
}
});
return res;
}
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module.exports = {
loadJson: loadJson,
verifyNoBrowserErrors: verifyNoBrowserErrors,
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scrollToEl: scrollToEl,
fixFFTest: fixFFTest,
eachNth: eachNth
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}