如何在 JUnit5 中测试 WireMockServer？

Question

我正在尝试编写一个迷你库来测试模拟常见的外部服务，例如电子邮件、SFTP、Buckets、HTTP APIs。

此刻，我卡在了 WireMockServer。在 WireMock docs 中，它声明我可以创建服务器和客户端来验证 API 调用。

我写了 class:

public class WireMockTestServer {

    private final WireMockServer server;

    public WireMockTestServer(String address, MappingBuilder mappingBuilder) {
        server = new WireMockServer(wireMockConfig().dynamicPort().dynamicHttpsPort());
    }

    public WireMockTestServer(int httpPort, int httpsPort, String address, MappingBuilder mappingBuilder) {
        server = setup(
                new WireMockServer(wireMockConfig().port(httpPort).httpsPort(httpsPort).bindAddress(address)),
                mappingBuilder
        );
    }

    private WireMockServer setup(WireMockServer server, MappingBuilder mappingBuilder) {
        server.stubFor(mappingBuilder);
        return server;
    }

    public void start() {
        server.start();
    }

    public void stop() {
        server.stop();
    }
}

我可以路径端点声明并将我的服务重定向到它。

当我尝试测试它时：

public class WireMockTestServerTest {

    @Test
    public void testSetup() throws Exception {
        MappingBuilder mappingBuilder = get(urlEqualTo("/health"))
                .willReturn(aResponse().withHeader("Content-Type", "application/json")
                        .withStatus(200));
        WireMockTestServer server = new WireMockTestServer(8888, 9988, "127.0.0.1", mappingBuilder);
        server.start();


        // This line should fail
        verify(getRequestedFor(urlEqualTo("/health")).withHeader("Content-Type", equalTo("text/xml")));
        server.stop();
    }

}

测试失败。问题是，它失败不是因为断言，而是因为它在错误的端口 8080 上启动，该端口被其他进程占用。

如何在另一个端口上启动 WireMockServer 并使用 JUnit 5 对其进行测试？

我正在使用 Java 8，Maven，Spring Boot.

Answer 1

如注释中所述，静态 verify 方法尝试验证默认的 wiremock 实例。由于您在测试中创建了一个独立实例，因此您应该对其进行验证。在 WireMockTestServer 中创建一个 verify 方法：

public void verify(final RequestPatternBuilder requestPatternBuilder) {
    server.verify(requestPatternBuilder);
}

然后你可以验证它:

@Test
public void testSetup() throws Exception {
    MappingBuilder mappingBuilder = get(urlEqualTo("/health"))
            .willReturn(aResponse().withHeader("Content-Type", "application/json")
                    .withStatus(200));
    WireMockTestServer server = new WireMockTestServer(8888, 9988, "127.0.0.1", mappingBuilder);
    server.start();

    // This line should fail
    server.verify(getRequestedFor(urlEqualTo("/health")).withHeader("Content-Type", equalTo("text/xml")));
    server.stop();
}

如何在 JUnit5 中测试 WireMockServer？

How to test WireMockServer in JUnit5?

java

testing

spring-boot

wiremock

junit5