Trying w/ bash

.github/workflows/e2e_tests_cypress.yml

@@ -57,7 +57,7 @@ jobs:
       - name: Cypress run
         uses: cypress-io/github-action@v2
         with:
-          command: find cypress/integration/ -name '*.js' | parallel -j2 --group  npx cypress run --spec {}
+          command: /bin/bash -c '/usr/bin/find cypress/integration/ -name '*.js' | parallel -j2 --group  npx cypress run --spec {}'
           working-directory: tests/end2end
           spec: cypress/integration/*-ghaction.js
           wait-on: http://localhost:8130

tests/end2end/cypress/integration/external_wms_layer-ghaction.js

@@ -0,0 +1,62 @@
+// # Test the respect of WMS external layer image format
+
+// The QGIS project contains 3 layers:
+
+// * **bakeries**: a SHP point layer in EPSG:4326
+// * **IGN plan**
+//   * **Plan IGN v2 2154 jpeg**: a WMS layer from the French IGN organization, requested in `image/jpeg`
+//   * **Plan IGN v2 2154 png**: the same layer but requested in `image/png`.
+
+
+// ## Procedure
+
+// Load the map `external_wms_layer`,
+
+// * [ ] open your browser developer panel with `CTRL+MAJ+i`,
+// * [ ] activate the `Network` tab with the `Images` filter (to see the requested images in the log),
+// * [ ] empty the log (search for a `bin` icon in the `Network` panel),
+// * [ ] move the map to trigger a map refresh,
+// * [ ] check the image requested for the active layer `bakeries` is in **PNG** format
+// * [ ] check the image requested for the active layer `Plan IGN v2 2154 jpeg` is in **JPEG** format
+// * [ ] activate the layer `Plan IGN v2 2154 png` in the legend
+// * [ ] check the image requested for the active layer `Plan IGN v2 2154 png` is in **PNG** format
+
+describe('External WMS layers', function () {
+
+    it('should get correct mime type in response', function () {
+        cy.visit('/index.php/view/map/?repository=testsrepository&project=external_wms_layer')
+
+        cy.intercept('*REQUEST=GetMap*',
+            { middleware: true },
+            (req) => {
+                req.on('before:response', (res) => {
+                    // force all API responses to not be cached
+                    // It is needed when launching tests multiple time in headed mode
+                    res.headers['cache-control'] = 'no-store'
+                })
+            }).as('getMap')
+
+        // Test bakeries layer
+        cy.wait(4000)
+        cy.get('#layer-bakeries button').click()
+
+        cy.wait('@getMap').then((interception) => {
+            expect(interception.response.headers['content-type'], 'expect mime type to be image/png').to.equal('image/png')
+        })
+
+        // Test Plan IGN v2 2154 jpeg
+        cy.get('#layer-Plan_IGN_v2_2154_jpeg button').click()
+
+        cy.wait('@getMap').then((interception) => {
+            expect(interception.response.headers['content-type'], 'expect mime type to be image/jpeg').to.equal('image/jpeg')
+        })
+
+        // Test Plan IGN v2 2154 png
+        cy.get('#layer-Plan_IGN_v2_2154_png button').click()
+
+        cy.wait('@getMap').then((interception) => {
+            expect(interception.response.headers['content-type'], 'expect mime type to be image/png').to.equal('image/png')
+        })
+
+    })
+})