Ktln 346 array2list (Baeldung#260)

* KTLN-336

* KTLN-346 Array -> List

core-kotlin-modules/core-kotlin-arrays/src/test/kotlin/com/baeldung/arrayToList/ConvertArrayToListUnitTest.kt

@@ -0,0 +1,41 @@
+package com.baeldung.arrayToList
+
+import org.assertj.core.api.Assertions.assertThat
+import org.assertj.core.util.Arrays
+import org.junit.jupiter.api.Test
+
+
+class ConvertArrayToListUnitTest {
+    private val givenArray = arrayOf("one", "two", "three", "four", "five")
+    private val expectedList = listOf("one", "two", "three", "four", "five")
+
+
+    @Test
+    fun `Given an array, when call Java Arrays' asList() method, should get the expected list`() {
+        val myList = Arrays.asList(givenArray)
+        assertThat(myList).isEqualTo(expectedList)
+    }
+
+    @Test
+    fun `Given an array, when call listOf() method, should get the expected list`() {
+        val myList = listOf(*givenArray)
+        assertThat(myList).isEqualTo(expectedList)
+    }
+
+    @Test
+    fun `Given an array, when call array's toList() function should get the expected list`() {
+        val myList = givenArray.toList()
+        assertThat(myList).isEqualTo(expectedList)
+    }
+
+    @Test
+    fun `Given an array, when call array's toCollection(destination) function should get the expected list`() {
+        val myList = givenArray.toCollection(ArrayList())
+        assertThat(myList).isEqualTo(expectedList)
+
+        val existingList = mutableListOf("I have an element already.")
+        val appendedList = givenArray.toCollection(existingList)
+        assertThat(appendedList).isEqualTo(mutableListOf("I have an element already.", *givenArray))
+    }
+
+}