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test: Try workaround for percy snapshot (#1084)

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Danny Brown 2019-10-24 15:54:06 -04:00 committed by GitHub
parent 97786b808c
commit 3a12138134
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6 changed files with 34 additions and 5 deletions
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2
platform/viewer/cypress/integration/common/OHIFStandaloneViewer.spec.js
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@ -5,7 +5,7 @@ describe('OHIFStandaloneViewer', () => {
it('loads route with at least 2 rows', () => {
cy.screenshot();
cy.percySnapshot();
cy.percyCanvasSnapshot('Study List');
cy.get('#studyListData tr')
.its('length')

2
platform/viewer/cypress/integration/common/OHIFStudyViewer.spec.js
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@ -12,7 +12,7 @@ describe('OHIF Study Viewer Page', () => {
it('checks if series thumbnails are being displayed', () => {
cy.screenshot();
cy.percySnapshot();
cy.percyCanvasSnapshot('Series Thumbnails');
cy.get('[data-cy="thumbnail-list"]')
.its('length')

2
platform/viewer/cypress/integration/pwa/OHIFExtensionMicroscopy.spec.js
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@ -22,6 +22,6 @@ describe('OHIF Microscopy Extension', () => {
cy.wait(3000); //Waiting for image to render before taking the snapshot
cy.screenshot();
cy.percySnapshot();
cy.percyCanvasSnapshot('Microscopy Extension');
});
});

2
platform/viewer/cypress/integration/pwa/OHIFExtensionPDF.spec.js
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@ -21,6 +21,6 @@ describe('OHIF PDF Extension', () => {
.should('be.eq', 1);
cy.screenshot();
cy.percySnapshot();
cy.percyCanvasSnapshot('PDF Extension');
});
});

2
platform/viewer/cypress/integration/pwa/OHIFExtensionVTK.spec.js
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@ -29,7 +29,7 @@ describe('OHIF VTK Extension', () => {
it('checks if VTK buttons are displayed on the toolbar', () => {
cy.screenshot();
cy.percySnapshot();
cy.percyCanvasSnapshot('VTK Extension');
cy.get('@crosshairsBtn')
.should('be.visible')

29
platform/viewer/cypress/support/commands.js
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@ -306,3 +306,32 @@ Cypress.Commands.add('isInViewport', element => {
}
});
});
/**
* Percy.io Canvas screenshot workaround
*
*/
Cypress.Commands.add('percyCanvasSnapshot', (name, options = {}) => {
function convertCanvas(document) {
document
.querySelectorAll('canvas')
.forEach(selector => canvasToImage(selector));
}
function canvasToImage(selectorOrEl) {
let canvas =
typeof selectorOrEl === 'object'
? selectorOrEl
: document.querySelector(selectorOrEl);
let image = document.createElement('img');
let canvasImageBase64 = canvas.toDataURL();
image.src = canvasImageBase64;
image.style = 'max-width: 100%';
canvas.setAttribute('data-percy-modified', true);
canvas.parentElement.appendChild(image);
canvas.style = 'display: none';
}
cy.percySnapshot(name, { ...options, domTransformation: convertCanvas });
});