DEV: adds test for image-short-url (#6642)

test/javascripts/lib/image-short-url-test.js.es6

@@ -0,0 +1,56 @@
+import {
+  lookupCachedUploadUrl,
+  resolveAllShortUrls,
+  resetCache
+} from "pretty-text/image-short-url";
+import { ajax } from "discourse/lib/ajax";
+
+QUnit.module("lib:pretty-text/image-short-url", {
+  beforeEach() {
+    const response = object => {
+      return [200, { "Content-Type": "application/json" }, object];
+    };
+
+    const srcs = [
+      {
+        short_url: "upload://a.jpeg",
+        url: "/uploads/default/original/3X/c/b/1.jpeg"
+      },
+      {
+        short_url: "upload://b.jpeg",
+        url: "/uploads/default/original/3X/c/b/2.jpeg"
+      }
+    ];
+
+    // prettier-ignore
+    server.post("/uploads/lookup-urls", () => { //eslint-disable-line
+      return response(srcs);
+    });
+
+    fixture().html(
+      srcs.map(src => `<img data-orig-src="${src.url}">`).join("")
+    );
+  },
+
+  afterEach() {
+    resetCache();
+  }
+});
+
+QUnit.test("resolveAllShortUrls", async assert => {
+  let lookup;
+
+  lookup = lookupCachedUploadUrl("upload://a.jpeg");
+  assert.notOk(lookup);
+
+  await resolveAllShortUrls(ajax);
+
+  lookup = lookupCachedUploadUrl("upload://a.jpeg");
+  assert.equal(lookup, "/uploads/default/original/3X/c/b/1.jpeg");
+
+  lookup = lookupCachedUploadUrl("upload://b.jpeg");
+  assert.equal(lookup, "/uploads/default/original/3X/c/b/2.jpeg");
+
+  lookup = lookupCachedUploadUrl("upload://c.jpeg");
+  assert.notOk(lookup);
+});