与Junit 5中的org.junit.runner.JUnitCore.runClasses相同的是什么？

Question

以下代码在JUnit4中开始,并且大部分都被翻译成JUnit5,除了main().我这样写它的原因是我正在演示TDD并且我有多个版本的StringInverter实现,每个版本都实现了更多的功能并通过了更多的测试.这是StringInverter界面:

interface StringInverter {
  public String invert(String str);
}

这里是几乎与JUnit5类编译:

import java.util.*;
import org.junit.jupiter.api.*;
import static org.junit.jupiter.api.Assertions.*;
import org.junit.platform.runner.JUnitPlatform;

public class StringInverterTest {
  static StringInverter inverter;
  @Test
  public final void basicInversion_Succeed() {
    String in = "Exit, Pursued by a Bear.";
    String out = "eXIT, pURSUED BY A bEAR.";
    assertEquals(inverter.invert(in), out);
  }
  @Test
  public final void basicInversion_Fail() {
    expectThrows(RuntimeException.class, () -> {
      assertEquals(inverter.invert("X"), "X");
    });
  }
  @Test
  public final void allowedCharacters_Fail() {
    expectThrows(RuntimeException.class, () -> {
      inverter.invert(";-_()*&^%$#@!~`");
      inverter.invert("0123456789");
    });
  }
  @Test
  public final void allowedCharacters_Succeed() {
    inverter.invert("abcdefghijklmnopqrstuvwxyz ,.");
    inverter.invert("ABCDEFGHIJKLMNOPQRSTUVWXYZ ,.");
  }
  @Test
  public final void lengthLessThan26_Fail() {
    String str = "xxxxxxxxxxxxxxxxxxxxxxxxxx";
    assertTrue(str.length() > 25);
    expectThrows(RuntimeException.class, () -> {
      inverter.invert(str);
    });
  }
  @Test
  public final void lengthLessThan26_Succeed() {
    String str = "xxxxxxxxxxxxxxxxxxxxxxxxx";
    assertTrue(str.length() < 26);
    inverter.invert(str);
  }
  public static void main(String[] args) throws Exception{
    assertEquals(args.length, 1);
    inverter = (StringInverter)
      Class.forName(args[0]).newInstance();
    Result result = org.junit.runner.JUnitCore.runClasses(
      StringInverterTest.class);
    List<Failure> failures = result.getFailures();
    System.out.printf("%s has %d FAILURES:\n",
      args[0], failures.size());
    int count = 1;
    for(Failure f : failures) {
      System.out.printf("Failure %d:\n", count++);
      System.out.println(f.getDescription());
      System.out.println(f.getMessage());
    }
  }
}

main() 使用JUnit4,所以我的问题是如何将其转换为JUnit 5.谢谢!

Answer 1

我找到了如何从主要静态方法开始单元测试的解决方案。

依赖项：

org.junit.jupiter:junit-jupiter-api:5.2.0
org.junit.platform:junit-platform-launcher:1.2.0
org.junit.jupiter:junit-jupiter-engine:5.2.0

代码示例：

org.junit.jupiter:junit-jupiter-api:5.2.0
org.junit.platform:junit-platform-launcher:1.2.0
org.junit.jupiter:junit-jupiter-engine:5.2.0

Answer 2

JUnit5在junit-platform-launcher模块中具有启动器API,用于编程测试发现和执行.

详细示例记录在其用户指南第7章中.