B2B-88: add starter kit structure and elements

supabase copy/tests/database/update-membership.test.sql

@@ -0,0 +1,27 @@
+begin;
+create extension "basejump-supabase_test_helpers" version '0.0.6';
+
+select no_plan();
+
+select makerkit.set_identifier('primary_owner', 'test@makerkit.dev');
+select makerkit.set_identifier('owner', 'owner@makerkit.dev');
+select makerkit.set_identifier('member', 'member@makerkit.dev');
+select makerkit.set_identifier('custom', 'custom@makerkit.dev');
+
+-- another user not in the team
+select tests.create_supabase_user('test', 'test@supabase.com');
+
+select makerkit.authenticate_as('member');
+
+-- run an update query
+update public.accounts_memberships set account_role = 'owner' where user_id = auth.uid() and account_id = makerkit.get_account_id_by_slug('makerkit');
+
+select row_eq(
+    $$ select account_role from public.accounts_memberships where user_id = auth.uid() and account_id = makerkit.get_account_id_by_slug('makerkit'); $$,
+    row('member'::varchar),
+    'Updates fail silently to any field of the accounts_membership table'
+);
+
+select * from finish();
+
+rollback;