// verify log String expected = "^\\{\"time\":\"202[3-9]-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}.[0-9]{0,3}Z\",\"severity\":\"INFO\",\"thread\":\"main\",\"logger\":\"io.kokuwa.micronaut.logging.LoggingTest\",\"message\":\"test-output-marker\",\"raw-message\":\"test-output-marker\",\"serviceContext\":\\{\"version\":\"0.1.2\",\"service\":\"test-service\"}}$"; String[] logs = org.codehaus.plexus.util.FileUtils.fileRead(basedir + "/build.log").split("\n"); for (String log : logs) { if (!log.contains("test-output-marker")) { continue; } if (java.util.regex.Pattern.matches(expected, log)) { return true; } else { System.out.println("marker found, but formatting invalid:"); System.out.println("[EXPECTED] " + expected); System.out.println("[ACTUAL] " + log); return false; } } System.out.println("marker not found"); return false;