src/test/java/PhoneBookTest.java - master - SofiMut/callerTDD

src/test/java/PhoneBookTest.java
85 строк2 KB
Sofia Stepanova
printAllnNames implemented
28 дек 2025, 13:07
28 дек 2025, 13:0783bc23e
import org.junit.jupiter.api.Test;

import java.io.ByteArrayOutputStream;
import java.io.PrintStream;

import static org.junit.jupiter.api.Assertions.assertEquals;

public class PhoneBookTest {

    PhoneBook phoneBook = new PhoneBook();


    @Test
    void testAddNotReturnsZero() {
        // Given
        String name = "Sofia";
        String number = "89834061988";

        // When
        int result = phoneBook.add(name, number);

        // Then
        assertEquals(1, result);
    }

    @Test
    void testFindByNumberReturnNull() {

        // Act
        String foundContact = phoneBook.findByNumber("89834061988");

        // Assert
        assertEquals(null, foundContact);
    }

    @Test
    void testFindByNumberReturnName() {
        // given
        String testName = "Sofia";
        String number = "89834061988";

        // when
        phoneBook.add("Sofia", "89834061988");
        String result = phoneBook.findByNumber(number);

        // then
        assertEquals(testName, result);
    }

    @Test
    void testFindByNameReturnNumber() {

        String testNumber = "89834061988";
        String name = "Sofia";

        phoneBook.add("Sofia", "89834061988");

        String result = phoneBook.findByName(name);

        assertEquals(testNumber, result);

    }

    @Test
    void testPrintAlNames() {

        phoneBook.add("Sofia", "89834061988");
        phoneBook.add("Aleksei", "89027637669");

        PrintStream originalOut = System.out;
        ByteArrayOutputStream outputStreamCaptor = new ByteArrayOutputStream();
        System.setOut(new PrintStream(outputStreamCaptor));

        phoneBook.printAllNames();

        System.setOut(originalOut);
        String result = outputStreamCaptor.toString().trim();

        String expectedResult = """
                Aleksei
                Sofia""";

        assertEquals(expectedResult.trim(), result.replace("\r\n", "\n").trim());
    }
}