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test: refactor

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Phan Huy Tran 2025-05-28 12:58:40 +02:00 • committed by Phan Huy Tran
commit 78b8f4696c
1 changed files with 48 additions and 13 deletions
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61
backend/src/test/java/de/szut/casino/dice/DiceServiceTest.java
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@ -10,6 +10,7 @@ import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.util.Random;
import static org.junit.jupiter.api.Assertions.*;
@ -101,78 +102,112 @@ class DiceServiceTest {
}
@Test
void play_rollOver_targetValueOne_lose() {
void play_rollOver_targetValueOne_rolledOne_lose() {
diceDto.setRollOver(true);
diceDto.setTargetValue(BigDecimal.valueOf(1));
when(random.nextInt(anyInt())).thenReturn(0);
when(random.nextInt(anyInt())).thenReturn(0); // rolledValue = 1
DiceResult result = diceService.play(user, diceDto);
assertFalse(result.isWin());
assertEquals(BigDecimal.valueOf(1), result.getRolledValue());
assertEquals(BigDecimal.ZERO, result.getPayout());
verify(balanceService, times(1)).subtractFunds(user, diceDto.getBetAmount());
verify(balanceService, never()).addFunds(eq(user), any(BigDecimal.class));
}
@Test
void play_rollUnder_targetValueOne_win() {
void play_rollOver_targetValueOne_rolledTwo_win() {
diceDto.setRollOver(true);
diceDto.setTargetValue(BigDecimal.valueOf(1));
when(random.nextInt(anyInt())).thenReturn(1); // rolledValue = 2
DiceResult result = diceService.play(user, diceDto);
assertTrue(result.isWin());
assertEquals(BigDecimal.valueOf(2), result.getRolledValue());
// Win chance for target 1 (roll over) is 99. Multiplier = (100-1)/99 = 1
assertEquals(diceDto.getBetAmount().stripTrailingZeros(), result.getPayout().stripTrailingZeros());
verify(balanceService, times(1)).subtractFunds(user, diceDto.getBetAmount());
verify(balanceService, times(1)).addFunds(eq(user), any(BigDecimal.class));
}
@Test
void play_rollUnder_targetValueOne_alwaysLose_winChanceZero() {
diceDto.setRollOver(false);
diceDto.setTargetValue(BigDecimal.valueOf(1));
when(random.nextInt(anyInt())).thenReturn(0);
when(random.nextInt(anyInt())).thenReturn(0); // rolledValue = 1
DiceResult result = diceService.play(user, diceDto);
assertFalse(result.isWin());
assertEquals(BigDecimal.valueOf(1), result.getRolledValue());
assertEquals(BigDecimal.ZERO, result.getPayout());
verify(balanceService, times(1)).subtractFunds(user, diceDto.getBetAmount());
verify(balanceService, never()).addFunds(eq(user), any(BigDecimal.class));
}
@Test
void play_rollOver_targetValueNinetyNine_win() {
void play_rollOver_targetValueNinetyNine_rolledHundred_win() {
diceDto.setRollOver(true);
diceDto.setTargetValue(BigDecimal.valueOf(99));
when(random.nextInt(anyInt())).thenReturn(99);
when(random.nextInt(anyInt())).thenReturn(99); // rolledValue = 100
DiceResult result = diceService.play(user, diceDto);
assertTrue(result.isWin());
assertEquals(BigDecimal.valueOf(100), result.getRolledValue());
// Win chance for target 99 (roll over) is 1. Multiplier = (100-1)/1 = 99
assertEquals(diceDto.getBetAmount().multiply(BigDecimal.valueOf(99)).stripTrailingZeros(), result.getPayout().stripTrailingZeros());
verify(balanceService, times(1)).subtractFunds(user, diceDto.getBetAmount());
verify(balanceService, times(1)).addFunds(eq(user), any(BigDecimal.class));
}
@Test
void play_rollUnder_targetValueNinetyNine_win() {
void play_rollUnder_targetValueNinetyNine_rolledNinetyEight_win() {
diceDto.setRollOver(false);
diceDto.setTargetValue(BigDecimal.valueOf(99));
when(random.nextInt(anyInt())).thenReturn(97);
when(random.nextInt(anyInt())).thenReturn(97); // rolledValue = 98
DiceResult result = diceService.play(user, diceDto);
assertTrue(result.isWin());
assertEquals(BigDecimal.valueOf(98), result.getRolledValue());
// Win chance for target 99 (roll under) is 98. Multiplier = (100-1)/98 = 99/98
assertEquals(diceDto.getBetAmount().multiply(BigDecimal.valueOf(99).divide(BigDecimal.valueOf(98), 4, RoundingMode.HALF_UP)), result.getPayout());
verify(balanceService, times(1)).subtractFunds(user, diceDto.getBetAmount());
verify(balanceService, times(1)).addFunds(eq(user), any(BigDecimal.class));
}
@Test
void play_rollOver_targetValueOneHundred_lose() {
void play_rollOver_targetValueOneHundred_alwaysLose_winChanceZero() {
diceDto.setRollOver(true);
diceDto.setTargetValue(BigDecimal.valueOf(100));
when(random.nextInt(anyInt())).thenReturn(99);
when(random.nextInt(anyInt())).thenReturn(99); // rolledValue = 100
DiceResult result = diceService.play(user, diceDto);
assertFalse(result.isWin());
assertEquals(BigDecimal.valueOf(100), result.getRolledValue());
assertEquals(BigDecimal.ZERO, result.getPayout());
verify(balanceService, times(1)).subtractFunds(user, diceDto.getBetAmount());
verify(balanceService, never()).addFunds(eq(user), any(BigDecimal.class));
}
@Test
void play_rollUnder_targetValueOneHundred_win() {
diceDto.setRollOver(false);
void play_rollUnder_targetValueOneHundred_rolledNinetyNine_win() {
diceDto.setRollOver(false); // Assuming a typo in original, should be setRollOver(false)
diceDto.setTargetValue(BigDecimal.valueOf(100));
when(random.nextInt(anyInt())).thenReturn(98);
when(random.nextInt(anyInt())).thenReturn(98); // rolledValue = 99
DiceResult result = diceService.play(user, diceDto);
assertTrue(result.isWin());
assertEquals(BigDecimal.valueOf(99), result.getRolledValue());
// Win chance for target 100 (roll under) is 99. Multiplier = (100-1)/99 = 1
assertEquals(diceDto.getBetAmount().stripTrailingZeros(), result.getPayout().stripTrailingZeros());
verify(balanceService, times(1)).subtractFunds(user, diceDto.getBetAmount());
verify(balanceService, times(1)).addFunds(eq(user), any(BigDecimal.class));
}
@Test