EventLoggingPlugin.java

package cucumber_selenium.plugins;

import io.cucumber.plugin.event.HookTestStep;
import io.cucumber.plugin.event.PickleStepTestStep;
import io.cucumber.plugin.event.TestCaseFinished;
import io.cucumber.plugin.event.TestCaseStarted;
import io.cucumber.plugin.event.TestRunFinished;
import io.cucumber.plugin.event.TestRunStarted;
import io.cucumber.plugin.event.TestStepStarted;
import io.cucumber.plugin.event.TestStepFinished;
import java.io.BufferedOutputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.PrintWriter;

interface Output {
	void write(String msg);

	default void write(String msg, Object... formatArgs) {
		write(String.format(msg, formatArgs));
	}
}

class ConsoleOutput implements Output {
	@Override
	public void write(String msg) {
		System.out.println(msg);
	}
}

class FileOutput implements Output {
	private final PrintWriter writer;

	public FileOutput(String filename) throws FileNotFoundException {
		this.writer = new PrintWriter(new BufferedOutputStream(new FileOutputStream(filename, true)), true);
	}

	@Override
	public void write(String msg) {
		writer.println(msg);
		writer.flush();
	}
}

public class EventLoggingPlugin extends EventListenerPlugin {

	private static final String OUTPUT_FILE = "cucumber_events.log";
	private final Output out;

	public EventLoggingPlugin() {
		Output output = null;
		try {
			output = new FileOutput(OUTPUT_FILE);
		} catch (FileNotFoundException e) {
			output = new ConsoleOutput();
		}
		out = output;
	}

	@Override
	public void onTestRunStarted(TestRunStarted event) {
		out.write("Execution started: %s", event.getInstant());
	}

	@Override
	public void onTestCaseStarted(TestCaseStarted event) {
		out.write("Test started : '%s'", event.getTestCase().getName());
	}

	@Override
	public void onHookStepStarted(TestStepStarted event) {
		HookTestStep step = (HookTestStep) event.getTestStep();
		out.write("Hook started : type=%s code=%s", step.getHookType(), step.getCodeLocation());
	}

	@Override
	public void onHookStepFinished(TestStepFinished event) {
		HookTestStep step = (HookTestStep) event.getTestStep();
		out.write("Hook finished: type=%s status=%s code=%s ", step.getHookType(), event.getResult().getStatus(),
				step.getCodeLocation());
	}

	@Override
	public void onTestStepStarted(TestStepStarted event) {
		PickleStepTestStep step = (PickleStepTestStep) event.getTestStep();
		out.write("Step started : text='%s' code=%s", step.getStep().getText(), step.getCodeLocation());
	}

	@Override
	public void onTestStepFinished(TestStepFinished event) {
		PickleStepTestStep step = (PickleStepTestStep) event.getTestStep();
		out.write("Step finished: status=%s text='%s'", event.getResult().getStatus(), step.getStep().getText());
	}

	@Override
	public void onTestCaseFinished(TestCaseFinished event) {
		out.write("Test finished: status=%s name='%s'", event.getResult().getStatus(), event.getTestCase().getName());
	}

	@Override
	public void onTestRunFinished(TestRunFinished event) {
		out.write("Execution finished: %s", event.getInstant());
	}

}