CartesianProductProvider.java
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* #%L
* wcm.io
* %%
* Copyright (C) 2020 wcm.io
* %%
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
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package io.wcm.qa.glnm.junit.combinatorial;
import static com.google.common.collect.Lists.cartesianProduct;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.List;
import java.util.stream.Stream;
import org.junit.platform.commons.support.AnnotationSupport;
import org.junit.platform.commons.util.Preconditions;
class CartesianProductProvider extends CombinatorialTestExtension {
@Override
protected Stream<Combination> combine(List<List<Combinable>> collectedInputs) {
return cartesianProduct(collectedInputs)
.stream()
.map(Combination::new);
}
@Override
protected Class<? extends Annotation> getAnnotationClass() {
return CartesianProduct.class;
}
@Override
protected String getNamePattern(Method templateMethod) {
CartesianProduct parameterizedTest = AnnotationSupport.findAnnotation(templateMethod, CartesianProduct.class).get();
String pattern = Preconditions.notBlank(parameterizedTest.name().trim(),
() -> String.format(
"Configuration error: @CartesianProduct on method [%s] must be declared with a non-empty name.",
templateMethod));
return pattern;
}
}