Junit 5 Custom Parameter Source with Boolean as Example

BooleanArgumentsProvider.java

import org.junit.jupiter.api.extension.ExtensionContext;
import org.junit.jupiter.params.provider.Arguments;
import org.junit.jupiter.params.provider.ArgumentsProvider;
import org.junit.jupiter.params.support.AnnotationConsumer;

import java.util.stream.Stream;

public class BooleanArgumentsProvider implements ArgumentsProvider, AnnotationConsumer<BooleanSource> {

    BooleanArgumentsProvider() {
    }

    public Stream<Arguments> provideArguments(ExtensionContext context) {
        return Stream.of(Arguments.arguments(Boolean.TRUE),Arguments.arguments(Boolean.FALSE));
    }

    @Override
    public void accept(BooleanSource booleanSource) {

    }
}

BooleanSource.java

import org.junit.jupiter.params.provider.ArgumentsSource;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

@Target({ElementType.ANNOTATION_TYPE, ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
@ArgumentsSource(BooleanArgumentsProvider.class)
public @interface BooleanSource {

}

ExampleTest.java

import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.NullSource;

import static org.junit.jupiter.api.Assertions.assertTrue;


class ExampleTest {

    @ParameterizedTest
    @BooleanSource
    @NullSource
    void myTestFail( Boolean bool) {
        assertTrue(true || bool);
    }

}