Error message when I use regex pattern

[mtakahashi-ivi]

Hello,

I'm using mock server ver.2.9. When I use code as following, it works as expected. But mock server prints error log as following. Can I ignore this log?

Error log

3859 [nioEventLoopGroup-3-2] ERROR org.mockserver.matchers.RegexStringMatcher  - Error while matching regex [{"test":"foobar"}] for string [.*"test":".*".*] Illegal repetition
{"test":"foobar"}

Test code

public class MockServerTest {
    private static final String HOST = "localhost";
    private static final int PORT = 9999;
    private static ClientAndServer mockServer;

    @BeforeClass
    public static void beforeClass() {
        mockServer = startClientAndServer(PORT);
    }

    @AfterClass
    public static void afterClass() {
        mockServer.stop();
    }

    @Test
    public void test() throws Throwable {
        final String requestBodyRegExp = ".*\"test\":\".*\".*";
        final String resource = "/test";
        final String responsedBody = "{\"message\":\"foobar\"}";

        new MockServerClient(HOST, PORT)
        .when(
                request()
                        .withMethod("POST")
                        .withPath(resource)
                        .withBody(StringBody.regex(requestBodyRegExp)),
                Times.exactly(1)
        )
        .respond(
                response()
                        .withStatusCode(200)
                        .withHeaders(
                                new Header("Content-Type", "application/json; charset=utf-8")
                        )
                        .withBody(responsedBody)
                        .withDelay(new Delay(TimeUnit.SECONDS, 1))
        );

        URL restServiceURL = new URL("http://"+HOST+":"+PORT+resource);

        HttpURLConnection httpConnection = (HttpURLConnection) restServiceURL
                .openConnection();
        httpConnection.setDoOutput(true);
        httpConnection.setRequestMethod("POST");

        String input = "{\"test\":\"foobar\"}";;
        OutputStream outputStream = httpConnection.getOutputStream();
        outputStream.write(input.getBytes());
        outputStream.flush();

        if (httpConnection.getResponseCode() != 200) {
            throw new RuntimeException(
                    "HTTP GET Request Failed with Error code : "
                            + httpConnection.getResponseCode());
        }

        BufferedReader responseBuffer = new BufferedReader(
                new InputStreamReader((httpConnection.getInputStream())));
        StringBuilder b = new StringBuilder();
        String line;
        while ((line = responseBuffer.readLine()) != null) {
            b.append(line);
        }

        assertThat(b.toString(), is(responsedBody));
    }

}

[jamesdbloom]

Yes the log was at the wrong level. The RegexStringMatcher matches both ways so that either the body is matched against the regex or the match is reversed so that the regex is matched against the body. This is for a number of reasons and significantly improves the robustness however it means that these errors typically occur. I have fixed this and changed the log level down to trace as it is an expected error. I'm going to do a release this fix and a number of other small fixes so you should be able to upgrade to version 3.1 from tomorrow and see the error go away.

[mtakahashi-ivi]

Thank you for your answer and quick fix.