import org.junit.* class TestLambdas { @Test fun contains() { Assert.assertTrue( "The result should be true if the collection contains an even number", containsEven(listOf(1, 2, 3, 126, 555)) ) } @Test fun notContains() { Assert.assertFalse( "The result should be false if the collection doesn't contain an even number", containsEven(listOf(43, 33)) ) } } //sampleStart /* Pass a lambda to any function to check if the collection contains an even number. The function any gets a predicate as an argument and returns true if there is at least one element satisfying the predicate. */ fun containsEven(collection: Collection<Int>): Boolean = collection.any { TODO() } //sampleEnd