numerus/test/tax_rate.sql

-- Test tax_rate
set client_min_messages to warning;
create extension if not exists pgtap;
reset client_min_messages;

begin;

select plan(7);

set search_path to numerus, public;

select has_domain('tax_rate');
select domain_type_is('tax_rate', 'numeric');

select lives_ok($$ select 0.21::tax_rate $$, 'Should be able to cast valid positive decimals to tax rate');
select lives_ok($$ select (-0.15)::tax_rate $$, 'Should be able to cast valid negative decimals to tax rate');
select lives_ok($$ select 0::tax_rate $$, 'Should be able to cast valid zero to tax rate');

select throws_ok(
	$$ SELECT 1::tax_rate $$,
	23514, null,
	'Should reject 100 % tax rate'
);

select throws_ok(
	$$ SELECT (-1)::tax_rate $$,
	23514, null,
	'Should reject -100 % tax rate'
);

select *
from finish();

rollback;