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Save coverage for each page in a test #70

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Merged
merged 2 commits into from
Jan 27, 2020
Merged

Save coverage for each page in a test #70

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1e36121
Save coverage for each page in a test
grantbdev Sep 1, 2019
8033838
Merge branch 'master' into grantbdev/feature--multiple-windows
bahmutov Jan 22, 2020
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5 changes: 5 additions & 0 deletions cypress/about.html
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
<body>
<h2>About</h2>
<main id="content"></main>
<script src="about.js"></script>
</body>
3 changes: 3 additions & 0 deletions cypress/about.js
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@@ -0,0 +1,3 @@
document
.getElementById('content')
.appendChild(document.createTextNode('Est. 2019'))
3 changes: 3 additions & 0 deletions cypress/index.html
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Original file line number Diff line number Diff line change
@@ -1,4 +1,7 @@
<body>
<nav>
<a href="/about.html">About</a>
</nav>
<h2>Test page</h2>
<p>Open the DevTools to see console messages</p>
<script src="app.js"></script>
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2 changes: 2 additions & 0 deletions cypress/integration/spec.js
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Expand Up @@ -12,6 +12,8 @@ context('Page test', () => {
cy.spy(win.console, 'log').as('log')
}
})

cy.contains('About').click()
})

it('logs names', function () {
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22 changes: 16 additions & 6 deletions support.js
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Expand Up @@ -19,27 +19,37 @@ const sendCoverage = coverage => {
if (Cypress.env('coverage') === false) {
console.log('Skipping code coverage hooks')
} else {
let windowCoverageObjects

before(() => {
// we need to reset the coverage when running
// in the interactive mode, otherwise the counters will
// keep increasing every time we rerun the tests
cy.task('resetCoverage', { isInteractive: Cypress.config('isInteractive') })
})

afterEach(() => {
// save coverage after each test
// because the entire "window" object is about
// to be recycled by Cypress before next test
cy.window().then(win => {
beforeEach(() => {
windowCoverageObjects = []

// save reference to coverage for each app window loaded in the test
cy.on('window:load', win => {
// if application code has been instrumented, the app iframe "window" has an object
const applicationSourceCoverage = win.__coverage__

if (applicationSourceCoverage) {
sendCoverage(applicationSourceCoverage)
windowCoverageObjects.push(applicationSourceCoverage)
}
})
})

afterEach(() => {
// save coverage after the test
// because now the window coverage objects have been updated
windowCoverageObjects.forEach(coverage => {
sendCoverage(coverage)
})
})

after(() => {
// there might be server-side code coverage information
// we should grab it once after all tests finish
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