#49 feat: reemplazar cytoscape por vis-network con semantica de certeza en graficos de provenance

tests/unit/components/graph/VisChart.spec.js

@@ -0,0 +1,121 @@
+import { beforeEach, describe, expect, it, vi } from 'vitest'
+import { mount } from '@vue/test-utils'
+import VisChart from '@/components/graph/VisChart.vue'
+
+const vis = vi.hoisted(() => {
+  const networkInstance = {
+    on: vi.fn(),
+    once: vi.fn(),
+    setData: vi.fn(),
+    setOptions: vi.fn(),
+    fit: vi.fn(),
+    destroy: vi.fn(),
+  }
+  const dataSetInstance = {
+    get: vi.fn(),
+  }
+  return {
+    networkInstance,
+    dataSetInstance,
+    Network: vi.fn(() => networkInstance),
+    DataSet: vi.fn(() => dataSetInstance),
+  }
+})
+
+vi.mock('vis-network/standalone', () => ({
+  Network: vis.Network,
+  DataSet: vis.DataSet,
+}))
+
+function handlerFor (mock, eventName) {
+  const call = mock.mock.calls.find(args => args[0] === eventName)
+  return call ? call[1] : null
+}
+
+describe('VisChart', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  it('crea la red con los nodos y aristas recibidos', () => {
+    const nodes = [{ id: 'product:1', label: 'Panela' }]
+    const edges = [{ from: 'product:1', to: 'supplier:5', dashes: true }]
+    mount(VisChart, { props: { nodes, edges } })
+
+    expect(vis.Network).toHaveBeenCalledTimes(1)
+    const [container, , options] = vis.Network.mock.calls[0]
+    expect(container).toBeInstanceOf(HTMLElement)
+    expect(options.physics.stabilization.enabled).toBe(true)
+    expect(vis.dataSetInstance.get).toBeDefined()
+    const data = vis.networkInstance.setData.mock.calls[0][0]
+    expect(data.nodes).toBe(vis.dataSetInstance)
+    expect(data.edges).toBe(vis.dataSetInstance)
+  })
+
+  it('mezcla las opciones base con las recibidas', () => {
+    mount(VisChart, {
+      props: {
+        nodes: [],
+        edges: [],
+        options: { nodes: { font: { size: 16 } }, physics: { stabilization: { iterations: 100 } } },
+      },
+    })
+
+    const options = vis.Network.mock.calls[0][2]
+    expect(options.nodes.font.size).toBe(16)
+    expect(options.nodes.shape).toBe('dot')
+    expect(options.physics.stabilization.iterations).toBe(100)
+    expect(options.physics.barnesHut.springLength).toBe(140)
+  })
+
+  it('emite select con el nodo al hacer click', () => {
+    const wrapper = mount(VisChart, { props: { nodes: [{ id: 'supplier:5', kind: 'supplier' }], edges: [] } })
+
+    vis.dataSetInstance.get.mockReturnValue({ id: 'supplier:5', kind: 'supplier', label: 'La Mesa' })
+    handlerFor(vis.networkInstance.on, 'click')({ nodes: ['supplier:5'] })
+
+    expect(wrapper.emitted('select')[0][0]).toEqual({ id: 'supplier:5', kind: 'supplier', label: 'La Mesa' })
+  })
+
+  it('no emite select cuando el click no cae sobre un nodo', () => {
+    const wrapper = mount(VisChart, { props: { nodes: [], edges: [] } })
+
+    handlerFor(vis.networkInstance.on, 'click')({ nodes: [] })
+
+    expect(wrapper.emitted('select')).toBeUndefined()
+  })
+
+  it('desactiva la física y ajusta la vista cuando la estabilización termina', () => {
+    mount(VisChart, { props: { nodes: [], edges: [] } })
+
+    const onStabilized = handlerFor(vis.networkInstance.once, 'stabilizationIterationsDone')
+    expect(onStabilized).toBeDefined()
+    onStabilized()
+
+    expect(vis.networkInstance.setOptions).toHaveBeenCalledWith({ physics: { enabled: false } })
+    expect(vis.networkInstance.fit).toHaveBeenCalled()
+  })
+
+  it('actualiza la red cuando cambian los nodos o aristas', async () => {
+    const wrapper = mount(VisChart, { props: { nodes: [{ id: 'product:1' }], edges: [] } })
+    expect(vis.networkInstance.setData).toHaveBeenCalledTimes(1)
+
+    await wrapper.setProps({ nodes: [{ id: 'product:2' }], edges: [{ from: 'product:2', to: 'supplier:5' }] })
+
+    expect(vis.networkInstance.setData).toHaveBeenCalledTimes(2)
+  })
+
+  it('aplica la altura recibida al contenedor', () => {
+    const wrapper = mount(VisChart, { props: { height: 340 } })
+
+    expect(wrapper.element.style.height).toBe('340px')
+  })
+
+  it('destruye la red al desmontar', () => {
+    const wrapper = mount(VisChart, { props: { nodes: [], edges: [] } })
+
+    wrapper.unmount()
+
+    expect(vis.networkInstance.destroy).toHaveBeenCalled()
+  })
+})