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package org.zwobble.couscous.tests.util;
public class ExtraAsserts {
public interface Action {
void run();
}
@SuppressWarnings("unchecked")
public static <T extends Throwable> T assertThrows(Class<T> exceptionType, Action action) {
try {
action.run();
throw new AssertionError("Expected exception");
} catch (Exception exception) {
if (exceptionType.isInstance(exception)) {
return (T)exception;
} else {
throw exception;
}
}
}
}
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