better code style

test/memex/accounts/invites_test.exs

@@ -126,7 +126,7 @@ defmodule Memex.InvitesTest do
          %{invite: %{token: token} = invite, current_user: current_user} do
       {:ok, _invite} = Invites.update_invite(invite, %{uses_left: 1}, current_user)
       assert {:ok, %{uses_left: 0, disabled_at: disabled_at}} = Invites.use_invite(token)
-      assert not is_nil(disabled_at)
+      assert not (disabled_at |> is_nil())
     end
 
     test "use_invite/1 does not work on disactivated invite",

test/memex/accounts_test.exs

@@ -96,9 +96,9 @@ defmodule Memex.AccountsTest do
         Accounts.register_user(%{"email" => email, "password" => valid_user_password()})
 
       assert user.email == email
-      assert is_binary(user.hashed_password)
-      assert is_nil(user.confirmed_at)
-      assert is_nil(user.password)
+      assert user.hashed_password |> is_binary()
+      assert user.confirmed_at |> is_nil()
+      assert user.password |> is_nil()
     end
 
     test "records used invite during registration" do
@@ -128,7 +128,7 @@ defmodule Memex.AccountsTest do
       assert changeset.valid?
       assert get_change(changeset, :email) == email
       assert get_change(changeset, :password) == password
-      assert is_nil(get_change(changeset, :hashed_password))
+      assert get_change(changeset, :hashed_password) |> is_nil()
     end
   end
 
@@ -265,7 +265,7 @@ defmodule Memex.AccountsTest do
 
       assert changeset.valid?
       assert get_change(changeset, :password) == "new valid password"
-      assert is_nil(get_change(changeset, :hashed_password))
+      assert get_change(changeset, :hashed_password) |> is_nil()
     end
   end
 
@@ -309,7 +309,7 @@ defmodule Memex.AccountsTest do
           "password" => "new valid password"
         })
 
-      assert is_nil(user.password)
+      assert user.password |> is_nil()
       assert Accounts.get_user_by_email_and_password(user.email, "new valid password")
     end
 
@@ -506,7 +506,7 @@ defmodule Memex.AccountsTest do
       {:ok, updated_user} =
         Accounts.reset_user_password(user, %{"password" => "new valid password"})
 
-      assert is_nil(updated_user.password)
+      assert updated_user.password |> is_nil()
       assert Accounts.get_user_by_email_and_password(user.email, "new valid password")
     end