src/test/java/com/packagemanagement/domain/model/PackageIdTest.java - master - Chebarik/PackageManagement

src/test/java/com/packagemanagement/domain/model/PackageIdTest.java
92 строки3 KB
Николай Мехоношин
added unit tests
13 янв 2026, 20:50
13 янв 2026, 20:50d22b6a7
package com.packagemanagement.domain.model;

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Nested;
import org.junit.jupiter.api.Test;

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

@DisplayName("PackageId Value Object")
class PackageIdTest {

    @Nested
    @DisplayName("Creation")
    class Creation {

        @Test
        @DisplayName("should create PackageId with valid value")
        void shouldCreateWithValidValue() {
            String value = "test-package-id";
            
            PackageId packageId = PackageId.of(value);
            
            assertNotNull(packageId);
            assertEquals(value, packageId.getValue());
        }

        @Test
        @DisplayName("should generate unique PackageId")
        void shouldGenerateUniqueId() {
            PackageId id1 = PackageId.generate();
            PackageId id2 = PackageId.generate();
            
            assertNotNull(id1);
            assertNotNull(id2);
            assertNotEquals(id1, id2);
        }

        @Test
        @DisplayName("should throw exception for null value")
        void shouldThrowExceptionForNullValue() {
            assertThrows(IllegalArgumentException.class, () -> PackageId.of(null));
        }

        @Test
        @DisplayName("should throw exception for blank value")
        void shouldThrowExceptionForBlankValue() {
            assertThrows(IllegalArgumentException.class, () -> PackageId.of(""));
            assertThrows(IllegalArgumentException.class, () -> PackageId.of("   "));
        }
    }

    @Nested
    @DisplayName("Equality")
    class Equality {

        @Test
        @DisplayName("should be equal when values are equal")
        void shouldBeEqualWhenValuesAreEqual() {
            PackageId id1 = PackageId.of("same-id");
            PackageId id2 = PackageId.of("same-id");
            
            assertEquals(id1, id2);
            assertEquals(id1.hashCode(), id2.hashCode());
        }

        @Test
        @DisplayName("should not be equal when values differ")
        void shouldNotBeEqualWhenValuesDiffer() {
            PackageId id1 = PackageId.of("id-1");
            PackageId id2 = PackageId.of("id-2");
            
            assertNotEquals(id1, id2);
        }

        @Test
        @DisplayName("should not be equal to null")
        void shouldNotBeEqualToNull() {
            PackageId id = PackageId.of("test-id");
            
            assertNotEquals(null, id);
        }
    }

    @Test
    @DisplayName("toString should return the value")
    void toStringShouldReturnValue() {
        String value = "my-package-id";
        PackageId packageId = PackageId.of(value);
        
        assertEquals(value, packageId.toString());
    }
}