Merge pull request #25 from andrewgryan/feature/missing-tests

Add tests to cover l-control-layers

src/l-control-layers.test.js

@@ -0,0 +1,73 @@
+// @vitest-environment happy-dom
+import { control } from "leaflet";
+import { it, expect } from "vitest";
+import { layerConnected } from "./events.js";
+import "./index.js"
+
+
+it("should raise a custom event when l-control-layers added to DOM", async () => {
+  // Create a <l-control-layers />
+  const el = document.createElement("l-control-layers")
+  const promise = new Promise((resolve) => {
+    el.addEventListener(layerConnected, (ev) => {
+      resolve(ev)
+    })
+  })
+
+  // Add to document object model
+  document.body.appendChild(el)
+
+  // Assert custom event raised
+  const event = await promise
+  expect(event.detail).toEqual({
+    layer: control.layers({}, {})
+  })
+})
+
+it("should append a base layer to l-control-layers", async () => {
+  // Create a <l-control-layers />
+  const el = document.createElement("l-control-layers")
+  const base = document.createElement("l-base-layers")
+  const marker = document.createElement("l-marker")
+  marker.setAttribute("lat-lng", "[0,0]")
+  base.appendChild(marker)
+  el.appendChild(base)
+  const promise = new Promise((resolve) => {
+    el.addEventListener(layerConnected, (ev) => {
+      resolve(ev.detail.layer)
+    })
+  })
+
+  // Add to document object model
+  document.body.appendChild(el)
+
+  // Assertions
+  const controlLayers = await promise
+  const expected = control.layers({}, {})
+  expected.addBaseLayer(marker.layer)
+  expect(controlLayers).toEqual(expected)
+})
+
+it("should append a overlay layer to l-control-layers", async () => {
+  // Create a <l-control-layers />
+  const el = document.createElement("l-control-layers")
+  const layers = document.createElement("l-overlay-layers")
+  const marker = document.createElement("l-marker")
+  marker.setAttribute("lat-lng", "[0,0]")
+  layers.appendChild(marker)
+  el.appendChild(layers)
+  const promise = new Promise((resolve) => {
+    el.addEventListener(layerConnected, (ev) => {
+      resolve(ev.detail.layer)
+    })
+  })
+
+  // Add to document object model
+  document.body.appendChild(el)
+
+  // Assertions
+  const controlLayers = await promise
+  const expected = control.layers({}, {})
+  expected.addOverlay(marker.layer)
+  expect(controlLayers).toEqual(expected)
+})

vite.config.js

@@ -3,5 +3,8 @@ import { defineConfig } from "vite";
 export default defineConfig({
   test: {
     includeSource: ["src/**/*.{js,ts}"],
+    coverage: {
+      exclude: ["docs"]
+    }
   },
 });