FIX: Update transcript handling following core updates (#179)

test/javascripts/acceptance/transcript-test.js

@@ -0,0 +1,37 @@
+import { settled, visit } from "@ember/test-helpers";
+import { test } from "qunit";
+import { acceptance } from "discourse/tests/helpers/qunit-helpers";
+
+/**
+ * Workaround for https://github.com/tildeio/router.js/pull/335
+ */
+async function visitWithRedirects(url) {
+  try {
+    await visit(url);
+  } catch (error) {
+    const { message } = error;
+    if (message !== "TransitionAborted") {
+      throw error;
+    }
+    await settled();
+  }
+}
+
+acceptance("Chat Integration - slack transcript", function (needs) {
+  needs.user({
+    can_create_topic: true,
+  });
+
+  needs.pretender((server, helper) => {
+    server.get("/chat-transcript/abcde", () => {
+      return helper.response({
+        content: "This is a chat transcript",
+      });
+    });
+  });
+
+  test("Can open composer with transcript", async function (assert) {
+    await visitWithRedirects("/chat-transcript/abcde");
+    assert.dom(".d-editor-input").hasValue("This is a chat transcript");
+  });
+});