update

liujie

2026-08-27 c919774537eceacb457b081782029efed93eb28c

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package com.tourguide.modules.finance.service;
 
import com.tourguide.modules.user.mapper.GuideUserMapper;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
 
import java.math.BigDecimal;
 
import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
 
class GuideWithdrawableBalanceServiceTest {
    private GuideUserMapper guideUserMapper;
    private GuideWithdrawableBalanceService service;
 
    @BeforeEach
    void setUp() {
        guideUserMapper = mock(GuideUserMapper.class);
        service = new GuideWithdrawableBalanceService(guideUserMapper);
    }
 
    @Test
    void shouldReadStoredGuideBalance() {
        when(guideUserMapper.selectBalance(8L)).thenReturn(new BigDecimal("504.30"));
 
        assertThat(service.getAvailableAmount(8L)).isEqualByComparingTo("504.30");
    }
 
    @Test
    void shouldAtomicallyDebitStoredBalance() {
        when(guideUserMapper.decreaseBalance(8L, new BigDecimal("80.00"))).thenReturn(1);
 
        assertThat(service.debit(8L, new BigDecimal("80"))).isTrue();
        verify(guideUserMapper).decreaseBalance(8L, new BigDecimal("80.00"));
    }
}