Add Cypress test for relative links to non-markdown files

Don't run the Cypress test on stable25, Cypress seems to choke on the
PDF viewer there.

Signed-off-by: Jonas <jonas@freesources.org>

Author: mejo-

cypress/e2e/pages-links.spec.js

@@ -26,10 +26,10 @@
 
 const baseUrl = Cypress.env('baseUrl')
 const sourceUrl = new URL(`${baseUrl}/index.php/apps/collectives/Link%20Testing/Link%20Source`)
-let imageId, textId
+let imageId, pdfId, textId
 let anotherCollectiveFirstPageId, linkTargetPageId
 
-describe('Page', function() {
+describe('Page Link Handling', function() {
 	before(function() {
 		cy.login('bob', { route: '/apps/collectives' })
 		cy.deleteAndSeedCollective('Another Collective')
@@ -48,12 +48,16 @@ describe('Page', function() {
 			cy.uploadFile('test.png', 'image/png').then((id) => {
 				imageId = id
 			})
+			cy.uploadFile('test.pdf', 'application/pdf', 'Collectives/Link%20Testing/').then((id) => {
+				pdfId = id
+			})
 		}).then(() => {
 			cy.seedPageContent('Link%20Testing/Link%20Source.md', `
 ## Links supposed to open in viewer
 
 * Absolute path to image in Nextcloud: [image](//test.png?fileId=${imageId})
 * Absolute path to text file in Nextcloud: [test.md](//test.md?fileId=${textId})
+* Relative path to pdf file in Nextcloud: [test.pdf](test.pdf?fileId=${pdfId})
 
 ## Links supposed to open in same window
 
@@ -176,6 +180,12 @@ describe('Page', function() {
 				edit: true,
 			})
 		})
+		it('Opens link with relative path to pdf in Nextcloud in viewer', function() {
+			let href = `/index.php/apps/files/?dir=/&openfile=${pdfId}#relPath=test.pdf`
+			testLinkToViewer(href, { fileName: 'test.pdf', viewerFileElement: 'iframe' })
+			href = `/index.php/apps/files/?dir=/Collectives/Link Testing&openfile=${pdfId}#relPath=test.pdf`
+			testLinkToViewer(href, { fileName: 'test.pdf', viewerFileElement: 'iframe', edit: true })
+		})
 	})
 
 	describe('Link handling to collectives', function() {

cypress/fixtures/test.pdf

@@ -230,7 +230,7 @@ Cypress.Commands.add('seedPage', (name, parentFilePath, parentFileName) => {
 /**
  * Upload a file
  */
-Cypress.Commands.add('uploadFile', (path, mimeType) => {
+Cypress.Commands.add('uploadFile', (path, mimeType, remotePath = '') => {
 	// Get fixture
 	return cy.fixture(path, 'base64').then(file => {
 		// convert the base64 string to a blob
@@ -240,13 +240,13 @@ Cypress.Commands.add('uploadFile', (path, mimeType) => {
 			return cy.window()
 				.its('app')
 				.then(async app => {
-					const response = await axios.put(`${Cypress.env('baseUrl')}/remote.php/webdav/${path}`, file, {
+					const response = await axios.put(`${Cypress.env('baseUrl')}/remote.php/webdav/${remotePath}${path}`, file, {
 						headers: {
 							requesttoken: app.OC.requestToken,
 							'Content-Type': mimeType,
 						},
 					})
-					cy.log(`Uploaded file to ${path}`)
+					cy.log(`Uploaded file to ${remotePath}${path}`)
 					const ocFileId = response.headers['oc-fileid']
 					const fileId = parseInt(ocFileId.substring(0, ocFileId.indexOf('oc')))
 					return fileId