test : PayRequests 일급 컬렉션의 단위테스트 작성

src/test/java/space/space_spring/domain/pay/model/firstCollection/PayRequestsTest.java

@@ -0,0 +1,69 @@
+package space.space_spring.domain.pay.model.firstCollection;
+
+import org.assertj.core.groups.Tuple;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import space.space_spring.domain.pay.model.entity.PayRequest;
+import space.space_spring.domain.pay.model.entity.PayRequestTarget;
+import space.space_spring.domain.space.model.entity.Space;
+import space.space_spring.domain.user.model.entity.User;
+import space.space_spring.entity.enumStatus.UserSignupType;
+
+import java.util.List;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.tuple;
+import static org.junit.jupiter.api.Assertions.*;
+
+class PayRequestsTest {
+
+    private User seongjun;
+    private User sangjun;
+    private User seohyun;
+    private User kyeongmin;
+    private Space kuit;
+
+    @BeforeEach
+    void setUp() {
+        // 1L : seongjun, 2L : sangjun, 3L : seohyun, 4L : kyeongmin
+        seongjun = User.create("email", "password", "노성준", UserSignupType.LOCAL);
+        sangjun = User.create("email", "password", "김상준", UserSignupType.LOCAL);
+        seohyun = User.create("email", "password", "정서현", UserSignupType.LOCAL);
+        kyeongmin = User.create("email", "password", "김경민", UserSignupType.LOCAL);
+        kuit = Space.create("space", "profileImg");
+    }
+
+    @Test
+    @DisplayName("멤버 변수인 PayRequest list 로부터 [payRequestId, 정산 총 금액, 현재까지 받은 금액, 정산 요청한 총 사람 수, 그 중 돈을 보낸 사람 수] 정보를 찾아준다.")
+    void getPayRequestInfos() throws Exception {
+        //given
+        PayRequest payRequest1 = PayRequest.create(seongjun, kuit, 40000, "우리은행", "111-111");
+        PayRequestTarget target1 = PayRequestTarget.create(payRequest1, 2L, 20000);
+        PayRequestTarget target2 = PayRequestTarget.create(payRequest1, 3L, 20000);
+
+        PayRequest payRequest2 = PayRequest.create(seongjun, kuit, 40000, "신한은행", "222-222");
+        PayRequestTarget target3 = PayRequestTarget.create(payRequest2, 3L, 10000);
+        PayRequestTarget target4 = PayRequestTarget.create(payRequest2, 4L, 30000);
+
+        target1.changeCompleteStatus(true);         // payRequest1 에 대해서 target1은 정산 완료
+        payRequest1.changeReceiveAmount(20000);
+
+        target3.changeCompleteStatus(true);         // payRequest2 에 대해서 target3은 정산 완료
+        payRequest2.changeReceiveAmount(10000);
+
+        PayRequests payCreatorIsSeongjun = PayRequests.create(List.of(payRequest1, payRequest2));
+
+        //when
+        PayRequestInfos payRequestInfos = payCreatorIsSeongjun.getPayRequestInfos();
+
+        //then
+        assertThat(payRequestInfos.getAll()).hasSize(2)
+                .extracting("totalAmount", "receiveAmount", "totalTargetNum", "paySendTargetNum")
+                .containsExactlyInAnyOrder(
+                        tuple(40000, 20000, 2, 1),
+                        tuple(40000, 10000, 2, 1)
+                );
+    }
+
+}