Question

我已经为Cloud Gateway实现了自定义过滤器工厂。但是，我无法弄清楚编写单元测试用例的方式。在探索默认的Filter Factories测试用例时，我发现大多数工厂测试类扩展了BaseWebClientTests和测试包中的其他类。

我的问题是，我应该将那些中间测试类复制粘贴到我的本地测试包中吗？这里的社区建议是什么？

Answer 1

这是我的结果，供您参考

class CustomGatewayFilterFactoryTest {

    @Autowired
    private CustomGatewayFilterFactory factory;

    private ServerWebExchange exchange;
    private GatewayFilterChain filterChain = mock(GatewayFilterChain.class);
    private ArgumentCaptor<ServerWebExchange> captor = ArgumentCaptor.forClass(ServerWebExchange.class);

    @BeforeEach
    void setup() {
        when(filterChain.filter(captor.capture())).thenReturn(Mono.empty());
    }

    @Test
    void customTest() {
        MockServerHttpRequest request = MockServerHttpRequest.get(DUMMY_URL).build();
        exchange = MockServerWebExchange.from(request);
        GatewayFilter filter = factory.apply(YOUR_FACTORY_CONFIG);
        filter.filter(exchange, filterChain);
        // filter.filter(exchange, filterChain).block(); if you have any reactive methods

        ServerHttpRequest actualRequest = captor.getValue().getRequest();

        // Now you can assert anything in the actualRequest
        assertEquals(request, actualRequest);
    }

}

Spring Cloud Gateway自定义过滤器工厂的单元测试

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