Sha256: 5dc251ba5b0e7dd477e2fe2856a65263442c2607bb781081fae9c11e842248c1
Contents?: true
Size: 1.72 KB
Versions: 76
Compression:
Stored size: 1.72 KB
Contents
import org.junit.Before;
import org.junit.Ignore;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import static org.junit.Assert.assertEquals;
/*
* version: 1.1.0
*/
public class CollatzCalculatorTest {
@Rule
public ExpectedException expectedException = ExpectedException.none();
private CollatzCalculator collatzCalculator;
@Before
public void setUp() {
collatzCalculator = new CollatzCalculator();
}
@Test
public void testZeroStepsRequiredWhenStartingFrom1() {
assertEquals(0, collatzCalculator.computeStepCount(1));
}
@Ignore("Remove to run test")
@Test
public void testCorrectNumberOfStepsWhenAllStepsAreDivisions() {
assertEquals(4, collatzCalculator.computeStepCount(16));
}
@Ignore("Remove to run test")
@Test
public void testCorrectNumberOfStepsWhenBothStepTypesAreNeeded() {
assertEquals(9, collatzCalculator.computeStepCount(12));
}
@Ignore("Remove to run test")
@Test
public void testAVeryLargeInput() {
assertEquals(152, collatzCalculator.computeStepCount(1000000));
}
@Ignore("Remove to run test")
@Test
public void testZeroIsConsideredInvalidInput() {
expectedException.expect(IllegalArgumentException.class);
expectedException.expectMessage("Only natural numbers are allowed");
collatzCalculator.computeStepCount(0);
}
@Ignore("Remove to run test")
@Test
public void testNegativeIntegerIsConsideredInvalidInput() {
expectedException.expect(IllegalArgumentException.class);
expectedException.expectMessage("Only natural numbers are allowed");
collatzCalculator.computeStepCount(-15);
}
}
Version data entries
76 entries across 76 versions & 1 rubygems