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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.test;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.List;
/**
* Hack to support both junit4 and junit5
*
* @author bjorncs
*/
public class JunitCompat {
private JunitCompat() {}
public static <T> void assertEquals(T l, T r) {
List<Class<?>> argTypes = List.of(Object.class, Object.class);
List<Object> argValues = List.of(l, r);
invokeAssert("assertEquals", argTypes, argValues, argTypes, argValues);
}
public static void assertEquals(String msg, long l, long r) {
List<Class<?>> junit4ArgTypes = List.of(String.class, long.class, long.class);
List<Object> junit4ArgValues = List.of(msg, l, r);
List<Class<?>> junit5ArgTypes = List.of(long.class, long.class, String.class);
List<Object> junit5ArgValues = List.of(l, r, msg);
invokeAssert("assertEquals", junit4ArgTypes, junit4ArgValues, junit5ArgTypes, junit5ArgValues);
}
public static void assertTrue(String msg, boolean b) {
List<Class<?>> junit4ArgTypes = List.of(String.class, boolean.class);
List<Object> junit4ArgValues = List.of(msg, b);
List<Class<?>> junit5ArgTypes = List.of(boolean.class, String.class);
List<Object> junit5ArgValues = List.of(b, msg);
invokeAssert("assertTrue", junit4ArgTypes, junit4ArgValues, junit5ArgTypes, junit5ArgValues);
}
private static void invokeAssert(String method, List<Class<?>> junit4ArgTypes, List<Object> junit4ArgValues,
List<Class<?>> junit5ArgTypes, List<Object> junit5ArgValues) {
try {
invokeAssert("org.junit.jupiter.api.Assertions", method, junit5ArgTypes, junit5ArgValues);
} catch (ReflectiveOperationException e) {
try {
invokeAssert("org.junit.Assert", method, junit4ArgTypes, junit4ArgValues);
} catch (ReflectiveOperationException ex) {
throw new RuntimeException("Unable to find junit4 or junit5 on test classpath", ex);
}
}
}
private static void invokeAssert(String clazz, String method, List<Class<?>> argTypes, List<Object> argValues)
throws ReflectiveOperationException {
try {
Class<?> c = Class.forName(clazz);
Method m = c.getMethod(method, argTypes.toArray(new Class<?>[0]));
m.invoke(null, argValues.toArray());
} catch (InvocationTargetException e) {
if (e.getCause() instanceof AssertionError ae) {
throw ae;
} else {
throw new RuntimeException(e.getCause());
}
}
}
}
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