Unify sign in and sign up

test/controllers/sessions_controller_test.rb

@@ -1,10 +1,42 @@
 require "test_helper"
 
 class SessionsControllerTest < ActionDispatch::IntegrationTest
-  test "destroy" do
+  test "new" do
     untenanted do
-      sign_in_as :kevin
+      get new_session_path
+    end
 
+    assert_response :success
+  end
+
+  test "create" do
+    identity = identities(:kevin)
+
+    untenanted do
+      assert_difference -> { MagicLink.count }, 1 do
+        post session_path, params: { email_address: identity.email_address }
+      end
+
+      assert_redirected_to session_magic_link_path
+    end
+  end
+
+  test "create for a new user" do
+    untenanted do
+      assert_difference -> { Identity.count }, +1 do
+        assert_difference -> { MagicLink.count }, +1 do
+          post session_path, params: { email_address: "nonexistent@example.com" }, headers: http_basic_auth_headers("testname", "testpassword")
+        end
+      end
+
+      assert_redirected_to session_magic_link_path
+    end
+  end
+
+  test "destroy" do
+    sign_in_as :kevin
+
+    untenanted do
       delete session_path
 
       assert_redirected_to new_session_path
@@ -12,31 +44,8 @@ class SessionsControllerTest < ActionDispatch::IntegrationTest
     end
   end
 
-  test "new" do
-    untenanted do
-      get new_session_path
-
-      assert_response :success
+  private
+    def http_basic_auth_headers(user, password)
+      { "Authorization" => ActionController::HttpAuthentication::Basic.encode_credentials(user, password) }
     end
-  end
-
-  test "create" do
-    untenanted do
-      identity = identities(:kevin)
-
-      assert_difference -> { MagicLink.count }, 1 do
-        post session_path, params: { email_address: identity.email_address }
-      end
-
-      assert_redirected_to session_magic_link_path
-    end
-
-    untenanted do
-      assert_no_difference -> { MagicLink.count } do
-        post session_path, params: { email_address: "nonexistent@example.com" }
-      end
-
-      assert_redirected_to session_magic_link_path
-    end
-  end
 end