service-worker: Promise.any() polyfill test added (ref. #8)

__tests__/service-worker.test.js

@@ -41,6 +41,38 @@ describe("service-worker", () => {
     require("../service-worker.js");
     expect(self.LibResilientPlugins).toBeInstanceOf(Array)
   })
+
+  test("Promise.any() polyfill should work", async () => {
+    self.LibResilientPlugins = false
+    self.LibResilientConfig = {
+        plugins: {
+        },
+        loggedComponents: [
+            'service-worker'
+        ]
+    }
+    expect.assertions(4)
+    // we want to make sure to actually test the polyfill
+    Promise.any = undefined
+    expect(typeof Promise.any).toEqual('undefined')
+    require("../service-worker.js");
+    expect(typeof Promise.any).toEqual('function')
+    expect(await Promise.any([
+      Promise.resolve('test resolve 1'),
+      Promise.reject('test reject 2')
+    ])).toEqual('test resolve 1')
+    try {
+      await Promise.any([
+        Promise.reject('test reject 1'),
+        Promise.reject('test reject 2')
+      ])
+    } catch (e) {
+      expect(e).toEqual([
+        "test reject 1",
+        "test reject 2"
+      ])
+    }
+  })
   
   test("basic set-up: LibResilientConfig", async () => {
     self.LibResilientConfig = null