tests: add tryAssertion command to replace cy.wait

e2e/cypress/component/1-store/edges/addSelectedEdges.cy.ts

@@ -20,7 +20,7 @@ describe('Store Action: `addSelectedEdges`', () => {
   })
 
   it('adds selected edges to store', () => {
-    expect(store.getSelectedEdges.value).to.have.length(randomNumber)
+    cy.tryAssertion(() => expect(store.getSelectedEdges.value).to.have.length(randomNumber))
   })
 
   it('adds `selected` class to edges', () => {
@@ -33,14 +33,10 @@ describe('Store Action: `addSelectedEdges`', () => {
 
         if (index < randomNumber) {
           expect(!!storedEdge?.selected).to.eq(true)
-          cy.wait(1).then(() => {
+          cy.tryAssertion(() => expect(edge).to.have.class('selected'))
-            expect(edge).to.have.class('selected')
-          })
         } else {
           expect(!!storedEdge?.selected).to.eq(false)
-          cy.wait(1).then(() => {
+          cy.tryAssertion(() => expect(edge).to.not.have.class('selected'))
-            expect(edge).to.not.have.class('selected')
-          })
         }
       })
     })

e2e/cypress/component/1-store/edges/removeSelectedEdges.cy.ts

@@ -36,12 +36,12 @@ describe('Store Action: `removeSelectedEdges`', () => {
 
         if (index >= randomNumber2 && index < randomNumber) {
           expect(!!storedEdge?.selected).to.eq(true)
-          cy.wait(1).then(() => {
+          cy.tryAssertion(() => {
             expect(edge).to.have.class('selected')
           })
         } else {
           expect(!!storedEdge?.selected).to.eq(false)
-          cy.wait(1).then(() => {
+          cy.tryAssertion(() => {
             expect(edge).to.not.have.class('selected')
           })
         }

e2e/cypress/component/1-store/elements/removeSelectedElements.cy.ts

@@ -35,7 +35,7 @@ describe('Store Action: `removeSelectedElements`', () => {
       ),
     )
 
-    cy.wait(1).then(() => {
+    cy.tryAssertion(() => {
       expect(store.getSelectedElements.value).to.have.length(randomNumber - randomNumber2)
     })
   })
@@ -45,7 +45,7 @@ describe('Store Action: `removeSelectedElements`', () => {
     store.addSelectedElements(Array.from({ length: randomNumber }, (_, i) => store.getElements.value[i]))
     store.removeSelectedElements()
 
-    cy.wait(1).then(() => {
+    cy.tryAssertion(() => {
       expect(store.getSelectedElements.value).to.have.length(0)
     })
   })

e2e/cypress/component/1-store/nodes/addSelectedNodes.cy.ts

@@ -33,12 +33,12 @@ describe('Store Action: `addSelectedNodes`', () => {
 
         if (index < randomNumber) {
           expect(!!storedNode?.selected).to.eq(true)
-          cy.wait(1).then(() => {
+          cy.tryAssertion(() => {
             expect(node).to.have.class('selected')
           })
         } else {
           expect(!!storedNode?.selected).to.eq(false)
-          cy.wait(1).then(() => {
+          cy.tryAssertion(() => {
             expect(node).to.not.have.class('selected')
           })
         }

e2e/cypress/component/1-store/nodes/removeSelectedNodes.cy.ts

@@ -36,12 +36,12 @@ describe('Store Action: `removeSelectedNodes`', () => {
 
         if (index >= randomNumber2 && index < randomNumber) {
           expect(!!storedNode?.selected).to.eq(true)
-          cy.wait(1).then(() => {
+          cy.tryAssertion(() => {
             expect(node).to.have.class('selected')
           })
         } else {
           expect(!!storedNode?.selected).to.eq(false)
-          cy.wait(1).then(() => {
+          cy.tryAssertion(() => {
             expect(node).to.not.have.class('selected')
           })
         }

e2e/cypress/component/1-store/viewpane/deleteKeyCode.cy.ts

@@ -19,7 +19,7 @@ describe('Store State: `deleteKeyCode`', () => {
 
       cy.get('body').trigger('keydown', { key: 'Backspace' })
 
-      cy.wait(1).then(() => {
+      cy.tryAssertion(() => {
         cy.get(`[data-id="${nodes[0].id}"]`).should('not.exist')
         expect(store.nodes.value.some((node) => node.id === nodes[0].id)).to.equal(false)
       })
@@ -33,7 +33,7 @@ describe('Store State: `deleteKeyCode`', () => {
 
       cy.get('body').trigger('keydown', { key: 'Delete' })
 
-      cy.wait(1).then(() => {
+      cy.tryAssertion(() => {
         cy.get(`[data-id="${nodes[0].id}"]`).should('not.exist')
         expect(store.nodes.value.some((node) => node.id === nodes[0].id)).to.equal(false)
       })

e2e/cypress/component/1-store/viewpane/selectionKeyCode.cy.ts

@@ -33,7 +33,7 @@ describe('Store State: `selectionKeyCode`', () => {
 
       cy.get('body').trigger('keyup', { key: 'Shift', release: true })
 
-      cy.wait(1).then(() => {
+      cy.tryAssertion(() => {
         expect(store.getSelectedElements.value).to.not.have.length(0)
       })
     })
@@ -60,7 +60,7 @@ describe('Store State: `selectionKeyCode`', () => {
 
       cy.get('body').trigger('keyup', { key: 'Control', release: true })
 
-      cy.wait(1).then(() => {
+      cy.tryAssertion(() => {
         expect(store.getSelectedElements.value).to.not.have.length(0)
       })
     })
@@ -84,7 +84,7 @@ describe('Store State: `selectionKeyCode`', () => {
         })
         .click()
 
-      cy.wait(1).then(() => {
+      cy.tryAssertion(() => {
         expect(store.getSelectedElements.value).to.not.have.length(0)
       })
     })

e2e/cypress/component/2-vue-flow/updateEdge.cy.ts

@@ -39,7 +39,7 @@ describe('Check if edges are updatable', () => {
       const edgeAnchor = cy.get('.vue-flow__edgeupdater[data-type="target"]')
       const targetTargetHandle = cy.get(`[data-nodeid="3"].target`)
 
-      targetTargetHandle.then((handle) => {
+      targetTargetHandle.then(async (handle) => {
         const target = handle[0]
         const { x, y } = target.getBoundingClientRect()
 
@@ -61,7 +61,7 @@ describe('Check if edges are updatable', () => {
             view: win,
           })
 
-        cy.wait(100).then(() => {
+        await cy.tryAssertion(() => {
           const storedEdges = store.edges.value
           expect(storedEdges).to.have.length(1)
           expect(storedEdges[0].target).to.equal('3')

e2e/cypress/component/2-vue-flow/viewpane.cy.ts

@@ -0,0 +1,39 @@
+import { useVueFlow } from '@vue-flow/core'
+import { getElements } from '../../utils'
+
+const { nodes } = getElements()
+
+describe('Viewpane drag / zoom', () => {
+  const store = useVueFlow({ id: 'test' })
+  beforeEach(() => {
+    cy.vueFlow({
+      nodes,
+    })
+  })
+
+  it('drags pane', () => {
+    cy.window().then(async (win) => {
+      const initialViewport = store.viewport.value
+      cy.get('.vue-flow__pane')
+        .should('be.visible')
+        .trigger('mousedown', 'center', { force: true, view: win })
+        .trigger('mousemove', {
+          force: true,
+          clientX: -(store.dimensions.value.width / 10),
+          clientY: store.dimensions.value.height / 2,
+          view: win,
+        })
+        .trigger('mouseup', { force: true, view: win })
+
+      await cy.tryAssertion(() => {
+        cy.get('.vue-flow__transformationpane')
+          .should('be.visible')
+          .should(
+            'have.css',
+            'transform',
+            `matrix(${store.viewport.value.zoom}, 0, 0, ${store.viewport.value.zoom}, ${store.viewport.value.x}, ${store.viewport.value.y})`,
+          )
+      })
+    })
+  })
+})

e2e/cypress/component/2-vue-flow/viewpane.ts

@@ -1,20 +0,0 @@
-import { getElements } from '../../utils'
-
-const { nodes } = getElements()
-
-describe('Viewpane drag / zoom', () => {
-  beforeEach(() => {
-    cy.vueFlow({
-      nodes,
-    })
-  })
-
-  it('drag pane', () => {
-    cy.window().then((win) => {
-      cy.get('.vue-flow__pane')
-        .trigger('mousedown', 'center', { force: true, view: win })
-        .trigger('mousemove', { force: true, clientX: 500, clientY: 250, view: win })
-        .trigger('mouseup', { force: true, view: win })
-    })
-  })
-})

e2e/cypress/support/component.ts

@@ -49,6 +49,24 @@ const useViewPort = () => cy.get('.vue-flow__viewport')
 
 const useTransformationPane = () => cy.get('.vue-flow__transformationpane')
 
+const retry = (assertion: Function, { interval = 20, timeout = 1000 } = {}) => {
+  return new Promise((resolve, reject) => {
+    const startTime = Date.now()
+
+    const tryAgain = () => {
+      setTimeout(() => {
+        try {
+          resolve(assertion())
+        } catch (err) {
+          Date.now() - startTime > timeout ? reject(err) : tryAgain()
+        }
+      }, interval)
+    }
+
+    tryAgain()
+  })
+}
+
 // Augment the Cypress namespace to include type definitions for
 // your custom command.
 // Alternatively, can be defined in cypress/support/component.d.ts
@@ -60,6 +78,7 @@ declare global {
       vueFlow: typeof mountVueFlow
       viewPort: typeof useViewPort
       transformationPane: typeof useTransformationPane
+      tryAssertion: typeof retry
     }
   }
 }
@@ -72,5 +91,7 @@ Cypress.Commands.add('viewPort', useViewPort)
 
 Cypress.Commands.add('transformationPane', useTransformationPane)
 
+Cypress.Commands.add('tryAssertion', retry)
+
 // Example use:
 // cy.mount(MyComponent)