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package de.tum.in.test.api.jupiter;

import java.lang.reflect.AnnotatedElement;
import java.lang.reflect.Method;
import java.util.Objects;
import java.util.Optional;
import java.util.function.Function;
import java.util.stream.Stream;

import org.apiguardian.api.API;
import org.apiguardian.api.API.Status;
import org.junit.jupiter.api.extension.ExtensionContext;

import de.tum.in.test.api.internal.TestContext;
import de.tum.in.test.api.internal.TestContextUtils;
import de.tum.in.test.api.internal.TestType;

@API(status = Status.INTERNAL)
public class JupiterContext extends TestContext {
	private final ExtensionContext extensionContext;

	JupiterContext(ExtensionContext extensionContext) {
		this.extensionContext = extensionContext;
	}

	@Override
	public Optional testMethod() {
		return findOptionalsInHierarchy(ExtensionContext::getTestMethod).findFirst();
	}

	@Override
	public Optional> testClass() {
		return findOptionalsInHierarchy(ExtensionContext::getTestClass).findFirst();
	}

	@Override
	public Optional testInstance() {
		return findOptionalsInHierarchy(ExtensionContext::getTestInstance).findFirst();
	}

	@Override
	public Optional annotatedElement() {
		return findOptionalsInHierarchy(ExtensionContext::getElement).findFirst();
	}

	@Override
	public String displayName() {
		return extensionContext.getDisplayName();
	}

	@Override
	public Optional findTestType() {
		return TestContextUtils.findAnnotationIn(this, JupiterArtemisTest.class).map(JupiterArtemisTest::value);
	}

	public ExtensionContext getExtensionContext() {
		return extensionContext;
	}

	private  Stream findOptionalsInHierarchy(Function> getter) {
		return hierarchy().map(getter).filter(Optional::isPresent).map(Optional::get);
	}

	private Stream hierarchy() {
		return Stream.iterate(extensionContext, Objects::nonNull, ec -> ec.getParent().orElse(null));
	}

	public static JupiterContext of(ExtensionContext extensionContext) {
		return new JupiterContext(extensionContext);
	}
}
    

    

    
            
    
            







    
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