assertEquals(expectedCredits, credits);
        verify(negotiationResponse).getInitialCredits();
    }

    @Test
    @DisplayName("Test getInitialCredits returns large value")
    void testGetInitialCreditsLarge() {
        // Arrange
        int expectedCredits = 256;
        when(negotiationResponse.getInitialCredits()).thenReturn(expectedCredits);

        // Act

Shinsuke Sugaya <******@****.***> 1755149504 +0900