Run dialyzer in test environment

apps/explorer/mix.exs

@@ -22,7 +22,8 @@ defmodule Explorer.Mixfile do
         coveralls: :test,
         "coveralls.detail": :test,
         "coveralls.post": :test,
-        "coveralls.html": :test
+        "coveralls.html": :test,
+        dialyzer: :test
       ],
       start_permanent: Mix.env() == :prod,
       test_coverage: [tool: ExCoveralls],

apps/explorer_web/mix.exs

@@ -22,7 +22,8 @@ defmodule ExplorerWeb.Mixfile do
         coveralls: :test,
         "coveralls.detail": :test,
         "coveralls.post": :test,
-        "coveralls.html": :test
+        "coveralls.html": :test,
+        dialyzer: :test
       ],
       start_permanent: Mix.env() == :prod,
       test_coverage: [tool: ExCoveralls],

apps/explorer_web/test/support/feature_case.ex

@@ -1,6 +1,9 @@
 defmodule ExplorerWeb.FeatureCase do
   use ExUnit.CaseTemplate
 
+  # Types on  Wallaby.Browser.resize_window don't allow session from start_session to be passed, so setup breaks
+  @dialyzer {:nowarn_function, __ex_unit_setup_0: 1}
+
   using do
     quote do
       use Wallaby.DSL

mix.exs

@@ -18,7 +18,8 @@ defmodule ExplorerUmbrella.Mixfile do
         coveralls: :test,
         "coveralls.detail": :test,
         "coveralls.post": :test,
-        "coveralls.html": :test
+        "coveralls.html": :test,
+        dialyzer: :test
       ],
       start_permanent: Mix.env() == :prod,
       test_coverage: [tool: ExCoveralls]