/**
* The class TestUtils provides the method runClass, which is used to
* run all the tests for a given JUnit program. It also declaires the
* constant DIV, which is also used by the JUnit programs. These are
* used for the automated grading of laboratories in ITI 1121/1521.
*
* @author Marcel Turcotte (marcel. )
* @version Sun Jan 12 11:02:02 2020
*/
import org.junit.runner.Result;
import org.junit.runner.JUnitCore;
import org.junit.runner.notification.Failure;
public class TestUtils {
/**
* A constant used when executing tests.
*/
public static final String DIV = “******************************************************************”;
/**
* The method runClass is used by the JUnit programs for a given
* laboratory. It prints various statistics about the number of
* successful and failed tests.
*
* @param the reference of a class that contains a series of JUnit tests.
*/
public static void runClass(java.lang.Class c) {
System.out.println(“Running ” + c.getName());
System.out.println();
Result result;
result = JUnitCore.runClasses(c);
System.out.println(“Number of tests run: ” + result.getRunCount());
System.out.println(“Number of tests that failed: ” + result.getFailureCount());
if (! result.wasSuccessful()) {
System.out.println();
System.out.println(“List of failed tests:”);
for (Failure failure : result.getFailures()) {
System.out.println();
System.out.println(failure.toString());
for (StackTraceElement elem : failure.getException().getStackTrace()) {
if (elem.getClassName().equals(c.getName())) {
System.out.println(” at ” + elem);
}
}
}
}
System.out.println();
}
}