Some light topology acceptance tests

ui/app/templates/topology.hbs

@@ -24,7 +24,7 @@
           </div>
         </div>
         <div class="boxed-section">
-          <div class="boxed-section-head">
+          <div data-test-info-panel-title class="boxed-section-head">
             {{#if this.activeNode}}Client{{else if this.activeAllocation}}Allocation{{else}}Cluster{{/if}} Details
           </div>
           <div class="boxed-section-body">

ui/tests/acceptance/topology-test.js

@@ -0,0 +1,53 @@
+import { module, test } from 'qunit';
+import { setupApplicationTest } from 'ember-qunit';
+import { setupMirage } from 'ember-cli-mirage/test-support';
+import a11yAudit from 'nomad-ui/tests/helpers/a11y-audit';
+import Topology from 'nomad-ui/tests/pages/topology';
+
+// TODO: Once we settle on the contents of the info panel, the contents
+// should also get acceptance tests.
+module('Acceptance | topology', function(hooks) {
+  setupApplicationTest(hooks);
+  setupMirage(hooks);
+
+  hooks.beforeEach(function() {
+    server.create('job', { createAllocations: false });
+  });
+
+  test('it passes an accessibility audit', async function(assert) {
+    server.createList('node', 3);
+    server.createList('allocation', 5);
+
+    await Topology.visit();
+    await a11yAudit(assert);
+  });
+
+  test('by default the info panel shows cluster aggregate stats', async function(assert) {
+    server.createList('node', 3);
+    server.createList('allocation', 5);
+
+    await Topology.visit();
+    assert.equal(Topology.infoPanelTitle, 'Cluster Details');
+  });
+
+  test('when an allocation is selected, the info panel shows information on the allocation', async function(assert) {
+    server.createList('node', 3);
+    server.createList('allocation', 5);
+
+    await Topology.visit();
+
+    await Topology.viz.datacenters[0].nodes[0].memoryRects[0].select();
+    assert.equal(Topology.infoPanelTitle, 'Allocation Details');
+  });
+
+  test('when a node is selected, the info panel shows information on the node', async function(assert) {
+    // A high node count is required for node selection
+    server.createList('node', 51);
+    server.createList('allocation', 5);
+
+    await Topology.visit();
+
+    await Topology.viz.datacenters[0].nodes[0].selectNode();
+    assert.equal(Topology.infoPanelTitle, 'Client Details');
+  });
+});

ui/tests/pages/topology.js

@@ -0,0 +1,11 @@
+import { create, text, visitable } from 'ember-cli-page-object';
+
+import TopoViz from 'nomad-ui/tests/pages/components/topo-viz';
+
+export default create({
+  visit: visitable('/topology'),
+
+  infoPanelTitle: text('[data-test-info-panel-title]'),
+
+  viz: TopoViz('[data-test-topo-viz]'),
+});