java - 使用 compileOnly 和 testCompileOnly 时 gradle 测试失败

Question

我有一个小的 gradle 库项目，它只有两个文件和两个测试:
RandomUtils.java

final class RandomUtils {

    private static final SecureRandom random = new SecureRandom();

    private RandomUtils() {
    }

    static String nextRandomId() {
        return new BigInteger(130, random).toString(32);
    }

}

URLUtils.java :

public class URLUtils {

    private URLUtils() {
    }

    /**
     * Return the base url (eg: http://localhost:8080)
     * @param request
     * @return String
     * @throws MalformedURLException
     */
    public static String getURLBase(HttpServletRequest request) throws MalformedURLException {
        URL requestURL = new URL(request.getRequestURL().toString());
        String port = requestURL.getPort() == -1 ? "" : ":" + requestURL.getPort();
        return requestURL.getProtocol() + "://" + requestURL.getHost() + port;
    }

}

这些是相应的测试:

@RunWith(JUnit4.class)
public class RandomUtilsTest {

    @Test
    public void testConstructorIsPrivate() throws Exception {
        Constructor constructor = RandomUtils.class.getDeclaredConstructor();
        assertTrue(Modifier.isPrivate(constructor.getModifiers()));
        constructor.setAccessible(true);
        constructor.newInstance();
    }

    @Test
    public void nextRandomId() throws MalformedURLException {
        assertNotNull(RandomUtils.nextRandomId());
    }

}

和

@RunWith(JUnit4.class)
public class URLUtilsTest {

    @Test
    public void testConstructorIsPrivate() throws Exception {
        Constructor constructor = URLUtils.class.getDeclaredConstructor();
        assertTrue(Modifier.isPrivate(constructor.getModifiers()));
        constructor.setAccessible(true);
        constructor.newInstance();
    }
    @Test
    public void getURLBase() throws MalformedURLException {
        MockHttpServletRequest request = new MockHttpServletRequest();
        request.setRequestURI("/entity");
        assertEquals("http://localhost", URLUtils.getURLBase((HttpServletRequest) request));
        request.setRequestURI(":8080/entity");
        assertEquals("http://localhost:8080", URLUtils.getURLBase((HttpServletRequest) request));
    }

}

我有以下 build.gradle :

dependencies {
    compileOnly("javax.servlet:javax.servlet-api:${javaxServletApiVersion}")
    testCompileOnly("javax.servlet:javax.servlet-api:${javaxServletApiVersion}")
    testCompileOnly("org.springframework:spring-test:${springVersion}")
    testCompileOnly("junit:junit:${junitVersion}")
}

我在 intellij 中对依赖项没有任何问题，但是当我尝试运行 ./gradlew clean build 时运行任务时出现此错误 :common:webutils:test :

java.lang.NoClassDefFoundError: org/springframework/mock/web/MockHttpServletRequest
    at com.domain.api.common.webutils.URLUtilsTest.getURLBase(URLUtilsTest.java:27)

我看过 gradle documentation它说

只编译 : 仅编译时依赖，运行时不使用

testCompileOnly : 仅用于编译测试的附加依赖项，在运行时不使用

我的配置正确吗？如果 javax.servlet:javax.servlet-api:${javaxServletApiVersion}为什么会在测试中失败test 和 src 都存在吗？

Answer 1

您已经回答了自己的问题:

testCompileOnly: Additional dependencies only for compiling tests, not used at runtime

testCompileOnly仅在编译测试时可用，而不是在执行它们时可用。如果你只在测试执行时需要一些东西，而不是像 slf4j 这样的编译绑定(bind)或类似的，属于 testRuntime .如果你需要一些东西来编译测试和运行时，那么它属于 testCompile .