NaturalNumberOnStringTest

NaturalNumberOnStringTest - import static...

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import static org.junit.Assert. assertEquals ; import org.junit.Test; import components.naturalnumber.NaturalNumber; /** * JUnit test fixture for {@code NaturalNumber}'s constructors and kernel * methods. * * @author --- * */ public abstract class NaturalNumberTest { /** * Invokes the appropriate {@code NaturalNumber} constructor for the * implementation under test and returns the result. * * @return the new number * @ensures constructorTest = 0 */ protected abstract NaturalNumber constructorTest (); /** * Invokes the appropriate {@code NaturalNumber} constructor for the * implementation under test and returns the result. * * @param i * {@code int } to initialize from * @return the new number * @requires i >= 0 * @ensures constructorTest = i */ protected abstract NaturalNumber constructorTest ( int i); /** * Invokes the appropriate {@code NaturalNumber} constructor for the * implementation under test and returns the result. * * @param s * {@code String} to initialize from * @return the new number * @requires there exists n: NATURAL (s = TO_STRING(n)) * @ensures s = TO_STRING(constructorTest) */ protected abstract NaturalNumber constructorTest ( String s); /** * Invokes the appropriate {@code NaturalNumber} constructor for the * implementation under test and returns the result. * * @param n * {@code NaturalNumber} to initialize from * @return the new number * @ensures constructorTest = n */
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protected abstract NaturalNumber constructorTest (NaturalNumber n); /** * Invokes the appropriate {@code NaturalNumber} constructor for the * reference implementation and returns the result.
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