feat(edges): add connection line action tests

e2e/cypress/component/1-store/actions/edges/connection.cy.ts

@@ -0,0 +1,51 @@
+import type { StartHandle } from '@braks/vue-flow'
+import { useVueFlow } from '@braks/vue-flow'
+import { getElements } from '../../../../utils'
+
+const { nodes, edges } = getElements(2, 2)
+
+describe('Store Action: `startConnection`, `updateConnection`, `endConnection`', () => {
+  const store = useVueFlow({ id: 'test' })
+  const startHandle: StartHandle = { nodeId: nodes[0].id, type: 'source', handleId: null }
+
+  beforeEach(() => {
+    cy.vueFlow({
+      nodes,
+      edges,
+    })
+  })
+
+  it('starts connection', () => {
+    store.startConnection(startHandle, { x: 0, y: 0 })
+
+    const storedStartHandle = store.connectionStartHandle.value
+    expect(storedStartHandle?.handleId).to.equal(startHandle.handleId)
+    expect(storedStartHandle?.nodeId).to.equal(startHandle.nodeId)
+    expect(storedStartHandle?.type).to.equal(startHandle.type)
+    expect(store.connectionPosition.value).to.deep.equal({ x: 0, y: 0 })
+  })
+
+  it('updates connection', () => {
+    store.startConnection(startHandle, { x: 0, y: 0 })
+    store.updateConnection({ x: 100, y: 100 })
+
+    expect(store.connectionPosition.value).to.deep.equal({ x: 100, y: 100 })
+  })
+
+  it('shows connection line on viewpane', () => {
+    store.startConnection(startHandle, { x: 0, y: 0 })
+    store.updateConnection({ x: 100, y: 100 })
+
+    cy.viewPort().find('.vue-flow__connection').should('exist')
+  })
+
+  it('ends/cancels connection', () => {
+    store.startConnection(startHandle, { x: 0, y: 0 })
+    store.updateConnection({ x: 100, y: 100 })
+    store.endConnection()
+
+    expect(store.connectionStartHandle.value).to.equal(null)
+    expect(store.connectionPosition.value).to.deep.equal({ x: NaN, y: NaN })
+    cy.viewPort().find('.vue-flow__connection').should('not.exist')
+  })
+})