package mixconfig.tools.dataretention.smartcard


import static org.junit.Assert.*;
import org.junit.Test;

class ApduConstantsTest {
	@Test
	public void apduConstantsArePairwiseUnequal() {
		checkThatConstantsStartingWithAPrefixArePairwiseUnequal("INSTRUCTION")
		checkThatConstantsStartingWithAPrefixArePairwiseUnequal("EXCEPTION")
	}
	
	protected void checkThatConstantsStartingWithAPrefixArePairwiseUnequal(String prefixOfConstant) {
		def classUnderTest = ApduConstants.class;
		def variables = classUnderTest.declaredFields.findAll{it.name.startsWith(prefixOfConstant)}
		variables.eachWithIndex{variable, i ->
			if (i>0) {
				def variableWithSameValue = variables[0..i-1].find{it -> variable.get() == it.get()};
				if (variableWithSameValue != null) {
					fail(variableWithSameValue.name + " is equal to " + variable.name)
				}
			}
		}
	}
}