WIP fix_user_impression_stats_test

test/code_fund/stats/user_impressions_test.exs

@@ -1,21 +1,59 @@
 defmodule CodeFund.Stats.UserImpressionsTest do
   use CodeFund.DataCase
-  alias CodeFund.Stats.UserImpressions
+  alias CodeFund.Stats.UserImpressions, as: UserImpressionsStats
   alias CodeFund.Impressions
   import CodeFund.Factory
 
-  test "last_thirty_days initial state" do
-    stats = UserImpressions.last_thirty_days()
-    assert stats.click_count == 0
-    assert stats.click_rate == 0.0
-    assert stats.distribution_amount == 0.0
-    assert stats.impression_count == 0
+  setup do
+    System.put_env("USER_IMPRESSION_STATS_REFRESH_INTERVAL_IN_MINUTES", "0")
+    :ok
   end
 
   test "stats update after :refresh message sent to genserver" do
-    pid = Process.whereis(UserImpressions)
+    assert UserImpressionsStats.last_thirty_days() == %CodeFund.Stats.UserImpressions.State{
+             click_count: 0,
+             click_rate: 0.0,
+             distribution_amount: 0.0,
+             impression_count: 0,
+             refreshed_at: nil
+           }
+
+    redirected_at = Timex.now()
+    audience = insert(:audience)
+    campaign = insert(:campaign, audience: audience, user: insert(:user, company: "Company Name"))
+
+    insert(:impression,
+      campaign: campaign,
+      redirected_at: redirected_at,
+      country: "US",
+      distribution_amount: Decimal.new("0.1"),
+      revenue_amount: Decimal.new("0.2")
+    )
+
+    insert(:impression, campaign: campaign, country: "US")
+
+    Ecto.Adapters.SQL.query!(
+      CodeFund.Repo,
+      "REFRESH MATERIALIZED VIEW user_impressions;",
+      [],
+      timeout: :infinity
+    )
+
+    pid = Process.whereis(UserImpressionsStats)
     Process.send(pid, :refresh, [])
-    stats = UserImpressions.last_thirty_days()
-    assert stats.refreshed_at != nil
+
+    assert Enum.count(Impressions.list_impressions()) == 2
+    assert CodeFund.Schema.UserImpression |> CodeFund.Repo.all() |> length == 2
+
+    assert %CodeFund.Stats.UserImpressions.State{
+             click_count: 1,
+             click_rate: 0.5,
+             distribution_amount: distribution_amount,
+             impression_count: 2,
+             refreshed_at: date
+           } = UserImpressionsStats.last_thirty_days()
+
+    assert date
+    assert distribution_amount == Decimal.new("0.100000000000")
   end
 end