test: Customer CRUD test

Author: Sehee-Lee-01

src/test/java/com/sehee/weeklyjpa/JpaTest.java

@@ -0,0 +1,78 @@
+package com.sehee.weeklyjpa;
+
+import com.sehee.weeklyjpa.domain.Customer;
+import com.sehee.weeklyjpa.domain.CustomerRepository;
+import lombok.extern.slf4j.Slf4j;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.Optional;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+@Slf4j
+@SpringBootTest
+public class JpaTest {
+    @Autowired
+    CustomerRepository repository;
+
+    Customer customer;
+
+    @BeforeEach
+    void setUp() {
+        customer = new Customer();
+        customer.setId(1L);
+        customer.setFirstName("Sehee");
+        customer.setLastName("Lee");
+    }
+
+    @AfterEach
+    void tearDown() {
+        repository.deleteAll();
+    }
+
+    @Test
+    @DisplayName("고객을 저장하고 조회할 수 있다.")
+    void insertTest() {
+        //When
+        repository.save(customer);
+
+        //Then
+        Customer retrievedCustomer = repository.findById(customer.getId()).get();
+        log.info("{} {}", retrievedCustomer.getFirstName(), retrievedCustomer.getLastName());
+    }
+
+    @Test
+    @Transactional
+    @DisplayName("고객을 업데이트할 수 있다.")
+    void updateTest() {
+        //Given
+        repository.save(customer);
+
+        //When
+        Customer retrievedCustomer = repository.findById(customer.getId()).get();
+        retrievedCustomer.setLastName("Kim");
+
+        //Then
+        Customer updatedCustomer = repository.findById(customer.getId()).get();
+        log.info("{} {}", updatedCustomer.getFirstName(), updatedCustomer.getLastName());
+    }
+    @Test
+    @Transactional
+    @DisplayName("고객을 삭제할 수 있다.")
+    void deleteTest() {
+        //Given
+        repository.save(customer);
+
+        //When
+        repository.delete(customer);
+
+        Optional<Customer> customerOptional = repository.findById(customer.getId());
+        assertThat(customerOptional).isEmpty();
+    }
+}