category: Rethrow non-404 errors

Author: Turbo87

app/routes/category.js

@@ -12,6 +12,8 @@ export default Route.extend({
         this.flashMessages.queue(`Category '${params.category_id}' does not exist`);
         return this.replaceWith('index');
       }
+
+      throw e;
     }
   },
 });

app/templates/error.hbs

@@ -1,5 +1,5 @@
 <h1>Something Went Wrong!</h1>
-<h5>{{this.model.message}}</h5>
+<h5 data-test-error-message>{{this.model.message}}</h5>
 <pre>
   {{this.model.stack}}
 </pre>

tests/routes/category-test.js

@@ -0,0 +1,25 @@
+import { currentURL } from '@ember/test-helpers';
+import { setupApplicationTest } from 'ember-qunit';
+import { module, test } from 'qunit';
+
+import setupMirage from '../helpers/setup-mirage';
+import { visit } from '../helpers/visit-ignoring-abort';
+
+module('Route | category', function (hooks) {
+  setupApplicationTest(hooks);
+  setupMirage(hooks);
+
+  test("shows an error message if the category can't be found", async function (assert) {
+    await visit('/categories/unknown');
+    assert.equal(currentURL(), '/');
+    assert.dom('[data-test-flash-message]').hasText("Category 'unknown' does not exist");
+  });
+
+  test('server error causes the error page to be shown', async function (assert) {
+    this.server.get('/api/v1/categories/:categoryId', {}, 500);
+
+    await visit('/categories/error');
+    assert.equal(currentURL(), '/categories/error');
+    assert.dom('[data-test-error-message]').includesText('GET /api/v1/categories/error returned a 500');
+  });
+});