JS test for mixed ads

test/javascripts/acceptance/mixed-ads-test.js.es6

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+import { acceptance, replaceCurrentUser } from "helpers/qunit-helpers";
+
+acceptance("Mixed Ads", {
+  loggedIn: true,
+  settings: {
+    house_ads_after_nth_post: 6,
+    house_ads_frequency: 50,
+    dfp_publisher_id: "MYdfpID",
+    dfp_through_trust_level: 2,
+    dfp_topic_list_top_code: "list_top_ad_unit",
+    dfp_topic_list_top_ad_sizes: "728*90 - leaderboard",
+    dfp_mobile_topic_list_top_code: "mobile_list_top_ad_unit",
+    dfp_mobile_topic_list_top_ad_size: "300*250 - medium rectangle",
+    dfp_post_bottom_code: "post_bottom_ad_unit",
+    dfp_post_bottom_ad_sizes: "728*90 - leaderboard",
+    dfp_mobile_post_bottom_code: "mobile_post_bottom_ad_unit",
+    dfp_mobile_post_bottom_ad_size: "300*250 - medium rectangle",
+    dfp_nth_post_code: 6
+  },
+  site: {
+    house_creatives: {
+      settings: {
+        topic_list_top: "Topic List",
+        topic_above_post_stream: "Above Post Stream",
+        topic_above_suggested: "Above Suggested",
+        post_bottom: "Post",
+        after_nth_post: 6
+      },
+      creatives: {
+        "Topic List": "<div class='h-topic-list'>TOPIC LIST</div>",
+        "Above Post Stream":
+          "<div class='h-above-post-stream'>ABOVE POST STREAM</div>",
+        "Above Suggested":
+          "<div class='h-above-suggested'>ABOVE SUGGESTED</div>",
+        Post: "<div class='h-post'>BELOW POST</div>"
+      }
+    }
+  }
+});
+
+test("correct ads show", async assert => {
+  replaceCurrentUser({ staff: false, trust_level: 1 });
+  await visit("/t/280"); // 20 posts
+
+  const houseAdsCount = find(".house-creative").length;
+  const dfpAdsCount = find(".google-dfp-ad").length;
+
+  assert.ok(houseAdsCount > 1);
+  assert.ok(houseAdsCount < 4);
+  assert.ok(dfpAdsCount > 1);
+  assert.ok(dfpAdsCount < 4);
+
+  await visit("/latest");
+  assert.equal(
+    find(".h-topic-list, .dfp-ad-topic-list").length,
+    1,
+    "it should render ad above topic list"
+  );
+});