如何在 Play 测试中从基于 InputStream 的结果中获取内容

Question

我正在使用 Play 2.6，使用 Java

我的控制器returns:

public Result xml() {
    return Results.ok(new ByteArrayInputStream("<someXml />".getBytes()));
}

我想在测试中解析结果：

Result result = new MyController().xml();    
play.test.Helpers.contentAsString(result)

这抛出

failed: java.lang.UnsupportedOperationException: Tried to extract body from a non strict HTTP entity without a materializer, use the version of this method that accepts a materializer instead

如何检索测试中输入流发出的结果内容？

Answer 1

如异常消息所述，由于您的结果是流实体，因此请在使用该方法的 Play 存储库中使用 contentAsString that takes a Materializer. Here's an example from HelpersTest.java 的版本：

@Test
public void shouldExtractContentAsStringFromAResultUsingAMaterializer() throws Exception {
    ActorSystem actorSystem = ActorSystem.create("TestSystem");

    try {
        Materializer mat = ActorMaterializer.create(actorSystem);

        Result result = Results.ok("Test content");
        String contentAsString = Helpers.contentAsString(result, mat);
        assertThat(contentAsString, equalTo("Test content"));
    } finally {
        Future<Terminated> future = actorSystem.terminate();
        Await.result(future, Duration.create("5s"));
    }
}

Answer 2

从带有 akka 2.6 的 Play 2.8 开始，'ActorMaterializer' 已被弃用。这是获得 'Materializer'

的方法

Materializer mat = Materializer.matFromSystem(actorSystem);

如何在 Play 测试中从基于 InputStream 的结果中获取内容

How can I get content from InputStream based results in Play tests

java

playframework

akka

akka-stream

playframework-2.6