test: Add builder pattern

Author: hyeoni90

src/test/java/com/hyeonah/javalabs/designpattern/builderpattern/step1/PersonTest.java

@@ -0,0 +1,70 @@
+package com.hyeonah.javalabs.designpattern.builderpattern.step1;
+
+import org.junit.jupiter.api.Test;
+
+import java.time.LocalDate;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class PersonTest {
+
+ /* 필요에 따라 다양한 파라미터 생성자를 만들어줘야 한다.*/
+ private Person person;
+
+ @Test
+ void all_params_constructor() {
+ // given
+ final String firstName = "firstName";
+ final String lastName = "lastName";
+ final String phoneNumber = "01011112222";
+ final String address = "address";
+ final String addressDetail = "addressDetail";
+ final int age = 20;
+ final String sex = "WOMAN";
+ final LocalDate birthDay = LocalDate.of(2001, 4, 16);
+
+ // when
+ // 1. 점층적 생성자 패턴
+// person = new Person("firstName",
+// "lastName",
+// "01011112222",
+// "address",
+// "addressDetail",
+// 20,
+// "WOMAN",
+// LocalDate.of(2001,4,16));
+
+ // 2. 자바빈 패턴
+ person = new Person();
+ person.setFirstName(firstName);
+ person.setLastName(lastName);
+ person.setPhoneNumber(phoneNumber);
+ person.setAddress(address);
+ person.setAddressDetail(addressDetail);
+ person.setAge(age);
+ person.setSex(sex);
+ person.setBirthDay(birthDay);
+
+ // then
+ assertThat(person.getFirstName()).isEqualTo(firstName);
+ assertThat(person.getLastName()).isEqualTo(lastName);
+ assertThat(person.getAddress()).isEqualTo(address);
+ }
+
+ @Test
+ void specific_param_constructor() {
+ // given
+ final String firstName = "first";
+ final String lastName = "last";
+
+ // when
+ person = new Person();
+ person.setFirstName(firstName);
+ person.setLastName(lastName);
+
+ // then
+ assertThat(person.getFirstName()).isEqualTo(firstName);
+ assertThat(person.getLastName()).isEqualTo(lastName);
+ assertThat(person.getAddress()).isNull();
+ }
+}

src/test/java/com/hyeonah/javalabs/designpattern/builderpattern/step2/PersonBuilderTest.java

@@ -0,0 +1,60 @@
+package com.hyeonah.javalabs.designpattern.builderpattern.step2;
+
+import org.junit.jupiter.api.Test;
+
+import java.time.LocalDate;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class PersonBuilderTest {
+
+ private Person person;
+
+ @Test
+ void all_params_builderTest() {
+ // given
+ final String firstName = "FirstName";
+ final String lastName = "LastName";
+ final String phoneNumber = "01022223333";
+ final String address = "Address";
+ final String addressDetail = "AddressDetail";
+ final int age = 20;
+ final String sex = "WOMAN";
+ final LocalDate birthDay = LocalDate.of(2001, 4, 16);
+
+ // when
+ person = new Person
+ .PersonBuilder(firstName, lastName, phoneNumber, address, addressDetail, birthDay)
+ .age(age)
+ .sex(sex)
+ .build();
+
+ // then
+ assertThat(person.getFirstName()).isEqualTo(firstName);
+ assertThat(person.getAddress()).isEqualTo(address);
+ assertThat(person.getAge()).isEqualTo(age);
+ assertThat(person.getSex()).isEqualTo(sex);
+ }
+
+ @Test
+ void Specified_param_builderTest() {
+ // given
+ final String firstName = "FirstName";
+ final String lastName = "LastName";
+ final String phoneNumber = "01022223333";
+ final String address = "Address";
+ final String addressDetail = "AddressDetail";
+ final LocalDate birthDay = LocalDate.of(2001, 4, 16);
+
+ // when
+ person = new Person
+ .PersonBuilder(firstName, lastName, phoneNumber, address, addressDetail, birthDay)
+ .build();
+
+ // then
+ assertThat(person.getFirstName()).isEqualTo(firstName);
+ assertThat(person.getAddress()).isEqualTo(address);
+ assertThat(person.getAge()).isZero();
+ assertThat(person.getSex()).isEqualTo("MAN");
+ }
+}