import org.junit.Ignore import org.junit.Test import kotlin.test.assertEquals class PrimeFactorCalculatorTest { @Test fun testThat1HasNoPrimeFactors() { assertEquals(emptyList(), PrimeFactorCalculator.primeFactors(1)) } @Ignore @Test fun testThatAPrimeNumberHasExactlyOnePrimeFactor() { assertEquals(listOf(2), PrimeFactorCalculator.primeFactors(2)) } @Ignore @Test fun testThatASquareOfAPrimeHasExactlyOnePrimeFactorRepeatedTwice() { assertEquals(listOf(3, 3), PrimeFactorCalculator.primeFactors(9)) } @Ignore @Test fun testThatACubeOfAPrimeHasExactlyOnePrimeFactorRepeatedThreeTimes() { assertEquals(listOf(2, 2, 2), PrimeFactorCalculator.primeFactors(8)) } @Ignore @Test fun testThatAProductOfPrimesAndNonPrimesIsFactoredProperly() { assertEquals(listOf(2, 2, 3), PrimeFactorCalculator.primeFactors(12)) } @Ignore @Test fun testThatAProductOfSmallPrimesIsFactoredProperly() { assertEquals(listOf(5, 17, 23, 461), PrimeFactorCalculator.primeFactors(901255)) } @Ignore @Test fun testThatAProductOfSmallAndLargePrimesIsFactoredProperly() { assertEquals(listOf(11, 9539, 894119), PrimeFactorCalculator.primeFactors(93819012551L)) } }