Merge pull request #9419 from alexbaeldung/tutorial/Convert-an-array-of-primitives

feat: Convert an array of primitives to a List

core-java-modules/core-java-collections-3/src/test/java/com/baeldung/collections/convertarrayprimitives/ConvertPrimitivesArrayToListUnitTest.java

@@ -0,0 +1,38 @@
+package com.baeldung.collections.iterators;
+
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.stream.Collectors;
+import com.google.common.primitives.Ints;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+public class ConvertPrimitivesArrayToListUnitTest {
+
+    @Test
+    public void givenArrayWithPrimitives_whenIterativeConvert_thenArrayGetsConverted() {
+        assertEquals(Arrays.asList(1,2,3,4), ConvertPrimitivesArrayToList.iterateConvert(new int[]{1,2,3,4}));
+    }
+
+    @Test
+    public void givenArrayWithPrimitives_whenStreamConvert_thenArrayGetsConverted() {
+        assertEquals(Arrays.asList(1,2,3,4), ConvertPrimitivesArrayToList.streamConvert(new int[]{1,2,3,4}));
+    }
+
+    @Test
+    public void givenArrayWithPrimitives_whenIntStreamConvert_thenArrayGetsConverted() {
+        assertEquals(Arrays.asList(1,2,3,4), ConvertPrimitivesArrayToList.streamConvertIntStream(new int[]{1,2,3,4}));
+    }
+
+    @Test
+    public void givenArrayWithPrimitives_whenGuavaConvert_thenArrayGetsConverted() {
+        assertEquals(Arrays.asList(1,2,3,4), ConvertPrimitivesArrayToList.guavaConvert(new int[]{1,2,3,4}));
+    }
+
+    @Test
+    public void givenArrayWithPrimitives_whenApacheCommonConvert_thenArrayGetsConverted() {
+        assertEquals(Arrays.asList(1,2,3,4), ConvertPrimitivesArrayToList.apacheCommonConvert(new int[]{1,2,3,4}));
+    }
+}