package com.trafficaudit.holiday.service;
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import org.junit.jupiter.api.Test;
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import java.lang.reflect.Method;
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import java.math.BigDecimal;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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class HolidayBulletinServiceTest {
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@Test
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void formatsTableRatiosAsSignedPercentages() throws Exception {
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HolidayBulletinService service = new HolidayBulletinService(null);
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assertEquals("-4.7%", ratio(service, "95.3", "100"));
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assertEquals("1.0%", ratio(service, "101", "100"));
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assertEquals("0%", ratio(service, "100", "100"));
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assertEquals("0%", ratio(service, "10004", "10000"));
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assertEquals("—", ratio(service, "100", null));
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assertEquals("—", ratio(service, "100", "0"));
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}
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private String ratio(HolidayBulletinService service, String current, String base) throws Exception {
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Method method = HolidayBulletinService.class.getDeclaredMethod("ratio", BigDecimal.class, BigDecimal.class);
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method.setAccessible(true);
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BigDecimal currentValue = current == null ? null : new BigDecimal(current);
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BigDecimal baseValue = base == null ? null : new BigDecimal(base);
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return (String) method.invoke(service, currentValue, baseValue);
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}
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}
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