@Test
public void mdcIsCleanedAfterCall() throws Exception {
outputWriter.doWrite(server, query, results);
assertThat(MDC.get("server")).isNull();
assertThat(MDC.get("metric")).isNull();
assertThat(MDC.get("value")).isNull();
assertThat(MDC.get("attributeName")).isNull();
assertThat(MDC.get("key")).isNull();
assertThat(MDC.get("epoch")).isNull();
}
@Test
public void metricsAreSentToLoggerViaMDC() throws Exception {
doAnswer(
new Answer() {
@Override
public Object answer(InvocationOnMock invocation) throws Throwable {
assertThat(MDC.get("server")).isEqualTo("localhost_9876");
assertThat(MDC.get("metric"))
.isEqualTo("localhost_9876.className.attributeName_key");
assertThat(MDC.get("value")).isEqualTo("1");
assertThat(MDC.get("attributeName")).isEqualTo("attributeName");
assertThat(MDC.get("key")).isEqualTo("key");
assertThat(MDC.get("epoch")).isEqualTo("1");
return null;
}
})
.when(logger)
.info("");
outputWriter.doWrite(server, query, results);
}