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fix: show correct error message when a regex starting with = is passed to cy.contains. #21388

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merged 2 commits into from
May 18, 2022
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fix: show correct error message when a regex starting with = is passed to cy.contains. #21388

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e79ab17
fix: show correct error message.
sainthkh May 9, 2022
1930be1
Merge branch 'develop' into issue-21108
rachelruderman May 16, 2022
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10 changes: 10 additions & 0 deletions packages/driver/cypress/integration/commands/querying/querying_spec.js
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Original file line number Diff line number Diff line change
Expand Up @@ -1230,6 +1230,16 @@ describe('src/cy/commands/querying', () => {
cy.get('#backslashes').contains('"<OE_D]dQ\\')
})

// https://github.com/cypress-io/cypress/issues/21108
it('shows correct error message when regex starts with =(equals sign)', () => {
cy.on('fail', (err) => {
expect(err.message).to.include('Expected to find content')
})

cy.visit('fixtures/dom.html')
cy.contains(/=[0-6]/, { timeout: 100 }).should('have.text', 'a=2')
})

describe('should(\'not.exist\')', () => {
it('returns null when no content exists', () => {
cy.contains('alksjdflkasjdflkajsdf').should('not.exist').then(($el) => {
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8 changes: 8 additions & 0 deletions packages/driver/src/config/jquery.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -51,6 +51,14 @@ $.find.matchesSelector = function (elem, expr) {
return matchesSelector.apply(_this, args)
},
catchFn (e) {
// https://github.com/cypress-io/cypress/issues/21108
// When regex starts with =, it is a syntax error when nothing found.
// Because Sizzle internally escapes = to handle attribute selectors.
// @see https://github.com/jquery/sizzle/blob/20390f05731af380833b5aa805db97de0b91268a/external/jquery/jquery.js#L4363-L4370
if (e.message.includes(`Syntax error, unrecognized expression: :cy-contains('`)) {
return false
}

throw e
},
finallyFn () {
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