How to use the exist function from should
Find comprehensive JavaScript should.exist code examples handpicked from public code repositorys.
should.exist is a method provided by the should.js assertion library that checks whether a given value is not null or undefined.
GitHub: qiniu/nodejs-sdk
30 31 32 33 34 35 36 37 38}); it('test prepareZone error', function (done) { config.zone = null; qiniu.util.prepareZone(bucketManager, 'no_ak', 'no_bucket', function (err, ctx) { should.exist(err); done(); }); });
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38GitHub: miktam/sizeof
36 37 38 39 40 41 42 43 44 45it('report an error for circular dependency objects', () => { const firstLevel = { a: 1 } const secondLevel = { b: 2, c: firstLevel } firstLevel.second = secondLevel should.exist(sizeof(firstLevel)) }) it('handle hasOwnProperty key', () => { sizeof({ hasOwnProperty: undefined }).should.be.instanceOf(Number)
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How does should.exist work?
should.exist is a method provided by the should.js assertion library that checks whether a given value is not null or undefined. The method is typically used as part of a unit test to verify that a variable or function returns an expected value. Under the hood, should.exist checks whether the value passed to it is not null or undefined. If the value is null or undefined, an assertion error is thrown. If the value is not null or undefined, the method returns undefined, indicating that the assertion passed. For example, the following code uses should.exist to test whether a variable named myVariable is not null or undefined: javascript Copy code {{{{{{{ const should = require('should'); // Test whether a variable exists const myVariable = 'hello'; should.exist(myVariable); If myVariable is null or undefined, an assertion error will be thrown, indicating that the test has failed. Otherwise, the test will pass and the method will return undefined. Overall, should.exist provides a simple and convenient way to test whether a value is not null or undefined, helping to ensure that your code behaves correctly under various conditions.
100 101 102 103 104 105 106 107 108 109'internal3', 'smartgondor', 'gardens', function (error, devices) { should.not.exist(error); should.exist(devices); devices.length.should.equal(1); devices[0].id.should.equal('id3'); done(); }
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GitHub: getodk/central-backend
27 28 29 30 31 32 33 34 35 36const { count } = await container.one(sql`select count(*) from entities`); count.should.equal(0); // Original submission update event should look like it was successfully processed with no failures. const updateEvent = await container.Audits.getLatestByAction('submission.update').then((o) => o.get()); should.exist(updateEvent.processed); updateEvent.failures.should.equal(0); // There should be no entity events logged. const createEvent = await container.Audits.getLatestByAction('entity.create');
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Ai Example
1 2 3 4 5 6 7 8 9 10const should = require("should"); // Define a function that returns a value function multiply(a, b) { return a * b; } // Test whether the function returns a value const result = multiply(2, 3); should.exist(result);
In this example, should.exist is used to test whether the multiply function returns a value. The function takes two arguments and returns their product. The result variable is assigned the result of calling multiply with arguments 2 and 3. Then, should.exist is used to test whether result is not null or undefined. If multiply returns a value, the test will pass and no error will be thrown. If the function returns null or undefined, the test will fail and an assertion error will be thrown. Note that should.exist can be used in various contexts to test whether a value is not null or undefined, helping to ensure that your code behaves correctly and returns expected values.
261 262 263 264 265 266 267 268 269 270return done(articleSaveErr); } // Set assertions on new article (articleSaveRes.body.title).should.equal(article.title); should.exist(articleSaveRes.body.user); should.equal(articleSaveRes.body.user._id, orphanId); // force the article to have an orphaned user reference orphan.remove(function () {
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45 46 47 48 49 50 51 52 53 54keyCount.should.equal(Object.keys(defaultValues).length); }); it('reportstorage.saveProps sets property in localstorage', () => { reportstorage.saveProps({insulin: false}); should.exist(mockStorage.get('reportProperties')); mockStorage.get('reportProperties').insulin.should.be.false(); }); it('reportstorage.saveProps ignores property not tracked', () => {
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36 37 38 39 40 41 42 43 44 45return done(err); } should.not.exist(res.headers['x-cache-invalidate']); const jsonResponse = res.body; should.exist(jsonResponse.posts); localUtils.API.checkResponse(jsonResponse, 'posts'); jsonResponse.posts.should.have.length(13); localUtils.API.checkResponse(
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403 404 405 406 407 408 409 410 411// perform a sign-in request to set members cookies on superagent await request.get(signinPath) .expect(302) .then((res) => { const redirectUrl = new URL(res.headers.location, testUtils.API.getURL()); should.exist(redirectUrl.searchParams.get('success')); redirectUrl.searchParams.get('success').should.eql('true'); }); });
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89 90 91 92 93 94 95 96 97 98'users', 'webhooks', 'milestones' ]; should.exist(exportData); should.exist(exportData.meta); should.exist(exportData.data); // NOTE: using `Object.keys` here instead of `should.have.only.keys` assertion
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39 40 41 42 43 44 45 46 47 48name: 'SiteRouter' }] } }; should.exist(parentRouter._getSiteRouter(req)); }); }); describe('fn: _respectDominantRouter', function () {
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26 27 28 29 30 31 32 33 34await configUtils.restore(); }); it('should output relative url of image', function () { const rendered = img_url('/content/images/image-relative-url.png', {}); should.exist(rendered); rendered.should.equal('/content/images/image-relative-url.png'); logWarnStub.called.should.be.false(); });
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753 754 755 756 757 758 759 760 761 762const model = await models.Post.findOne({ id }, testUtils.context.internal); should(model.get('newsletter_id')).eql(null); should.exist(model.get('published_by')); // Check email // Note: we only create an email if we have members susbcribed to the newsletter const email = await models.Email.findOne({
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GitHub: furkot/directions
44 45 46 47 48 49 50 51 52 53const result = await furkotDirections({ services: [] })({ points: [[0, 0], [1, 1]] }); should.exist(result); result.should.have.property('routes').with.length(1); }); it('service', async function () {
003GitHub: pofresh/pofresh
8 9 10 11 12 13 14 15 16 17 18describe('channel manager test', function () { describe('#createChannel', function () { it('should create and return a channel with the specified name', function () { let channelService = new ChannelService(mockApp); let channel = channelService.createChannel(channelName); should.exist(channel); channelName.should.equal(channel.name); }); it('should return the same channel if the name has already existed', function () {
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GitHub: pofresh/pofresh
197 198 199 200 201 202 203 204 205 206// for (i = 0, l = filters2.length; i < l; i++) { // filters2[i].should.equal(filters[i]); // } // // let filters3 = app.get('__afters__'); // should.exist(filters3); // filters3.length.should.equal(filters.length); // for (i = 0, l = filters3.length; i < l; i++) { // filters2[i].should.equal(filters[i]); // }
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GitHub: TryGhost/Ghost
2138 2139 2140 2141 2142 2143 2144 2145 2146 2147}); res.text.should.match(/id,email,name,note,subscribed_to_emails,complimentary_plan,stripe_customer_id,created_at,deleted_at,labels,tiers/); const csv = Papa.parse(res.text, {header: true}); should.exist(csv.data.find(row => row.name === 'Mr Egg')); should.exist(csv.data.find(row => row.name === 'Winston Zeddemore')); should.exist(csv.data.find(row => row.name === 'Ray Stantz')); should.exist(csv.data.find(row => row.email === 'member2@test.com')); should.exist(csv.data.find(row => row.tiers.length > 0));
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14 15 16 17 18 19 20 21 22 23 24 25// storing current environment currentEnv = process.env.NODE_ENV; describe('Error handling', function () { // Just getting rid of jslint unused error should.exist(errors); describe('Throwing', function () { it('throws error objects', function () { var toThrow = new Error('test1'),
00229 30 31 32 33 34 35 36 37 38}); it('createCheckoutSession sends success_url and cancel_url', async function (){ await api.createCheckoutSession('priceId', null, {}); should.exist(mockStripe.checkout.sessions.create.firstCall.firstArg.success_url); should.exist(mockStripe.checkout.sessions.create.firstCall.firstArg.cancel_url); }); it('createCheckoutSetupSession sends success_url and cancel_url', async function (){
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13 14 15 16 17 18 19 20 21 22expires: expires, password: 'password', dbHash: dbHash }); should.exist(token); token.length.should.be.above(0); }); it('compare: success', function () {
001187 188 189 190 191 192 193 194 195 196executeMiddleware(middleware, req, res, function next() { try { const templateOptions = hbs.updateTemplateOptions.firstCall.args[0]; const data = templateOptions.data; should.exist(data.site.signup_url); data.site.signup_url.should.equal('https://feedly.com/i/subscription/feed/http%3A%2F%2F127.0.0.1%3A2369%2Frss%2F'); done(); } catch (error) {
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should.not is the most popular function in should (1156 examples)