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Some JUnit abstract test classes to test chess related libraries.

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package com.fathzer.chess.utils.test;

import java.lang.reflect.Method;
import java.util.Optional;

import org.junit.jupiter.api.extension.ConditionEvaluationResult;
import org.junit.jupiter.api.extension.ExecutionCondition;
import org.junit.jupiter.api.extension.ExtensionContext;

import com.fathzer.chess.utils.model.Variant;

class VariantCondition implements ExecutionCondition {
	@Override
	public ConditionEvaluationResult evaluateExecutionCondition(ExtensionContext context) {
		Optional> testClass = context.getTestClass();
		Optional testMethod = context.getTestMethod();

		if (testClass.isPresent() && testMethod.isPresent()) {
			IfVariantSupported annotation = testMethod.get().getAnnotation(IfVariantSupported.class);
			if (annotation != null) {
				Variant variant = annotation.value();
				try {
					Object instance = context.getTestInstance().orElse(null);
					if (instance != null) {
						Method method = testClass.get().getMethod("isSupported", Variant.class);
						final Object invoke = method.invoke(instance, variant);
						boolean result = (boolean) invoke;

						if (result) {
							return ConditionEvaluationResult.enabled("Test enabled by annotation");
						} else {
							return ConditionEvaluationResult.disabled("Test disabled because variant " + variant + " is not supported");
						}
					}
				} catch (Exception e) {
					return ConditionEvaluationResult.disabled("Error evaluating condition: " + e.getMessage());
				}
			}
		}
		return ConditionEvaluationResult.enabled("No condition annotation found, test enabled by default");
	}
}