bilhej/backend/src/test/java/se/bilhalsning/entity/SubscriptionConverterTest.java

package se.bilhalsning.entity;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertThrows;

import org.junit.jupiter.api.Test;

class SubscriptionConverterTest {

    private final SubscriptionConverter converter = new SubscriptionConverter();

    @Test
    void shouldReturnValueWhenSubscriptionIsNotNull() {
        assertEquals("basic", converter.convertToDatabaseColumn(Subscription.BASIC));
    }

    @Test
    void shouldReturnNullWhenSubscriptionIsNull() {
        assertNull(converter.convertToDatabaseColumn(null));
    }

    @Test
    void shouldReturnEnumWhenDbDataMatchesValue() {
        assertEquals(Subscription.PRO, converter.convertToEntityAttribute("pro"));
    }

    @Test
    void shouldReturnNullWhenDbDataIsNull() {
        assertNull(converter.convertToEntityAttribute(null));
    }

    @Test
    void shouldThrowWhenDbDataDoesNotMatchAnySubscription() {
        assertThrows(IllegalArgumentException.class,
                () -> converter.convertToEntityAttribute("premium"));
    }

    @Test
    void shouldRoundtripAllEnumValues() {
        for (Subscription subscription : Subscription.values()) {
            String db = converter.convertToDatabaseColumn(subscription);
            assertEquals(subscription, converter.convertToEntityAttribute(db));
        }
    }
}