JUnit5用户手册~从Junit4迁移

1、迁移小贴士

注解在org.junit.jupiter.api包；

断言使用org.junit.jupiter.api.Assertions类

        org.junit.Assert和其他断言库（AssertJ, Hamcrest, Truth）依然可用

假设使用org.junit.jupiter.api.Assumptions类

JUnit4	JUnit5
@Before、@After	@BeforeEach、@AfterEach
@BeforeClass、@AfterClass	@BeforeAll、@AfterAll
@Ignore	@Disabled
@Category	@Tag
@RunWith	@ExtendWith
@Rule、@ClassRule	@ExtendWith、@RegisterExtension

2、JUnit4@Ignore支持

import org.junit.Ignore;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.migrationsupport.EnableJUnit4MigrationSupport;

// @ExtendWith(IgnoreCondition.class)
@EnableJUnit4MigrationSupport
class IgnoredTestsDemo {
  @Ignore
  @Test
  void testWillBeIgnored() {

  }

  @Test
  void testWillBeExecuted() {
  }
}

3、错误信息参数变更

JUnit4：assertEquals(String message, Object expected, Object actual)

JUnit5：assertEquals(Object expected, Object actual, String message).

Assertions

◦ assertTrue

◦ assertFalse

◦ assertNull

◦ assertNotNull

◦ assertEquals

◦ assertNotEquals

◦ assertArrayEquals

◦ assertSame

◦ assertNotSame

◦ assertThrows

• Assumptions

◦ assumeTrue

◦ assumeFalse