Add missing test coverage for

org.apache.commons.lang3.ArrayUtils.toPrimitive(Object)

Split test for each API:
- org.apache.commons.lang3.ArrayUtils.toString(Object)
- org.apache.commons.lang3.ArrayUtils.toString(Object, String)

Author: garydgregory

src/test/java/org/apache/commons/lang3/ArrayUtilsTest.java

@@ -6676,27 +6676,28 @@ void testToPrimitive_short_short() {
     @Test
     void testToPrimitiveArray() {
         assertNull(ArrayUtils.toPrimitive((Object[]) null));
-        assertArrayEquals(new boolean[]{true}, ArrayUtils.toPrimitive(new Boolean[]{true}));
-        assertArrayEquals(new char[]{'a'}, ArrayUtils.toPrimitive(new Character[]{'a'}));
-        assertArrayEquals(new byte[]{1}, ArrayUtils.toPrimitive(new Byte[]{1}));
-        assertArrayEquals(new int[]{}, ArrayUtils.toPrimitive(new Integer[]{}));
-        assertArrayEquals(new short[]{2}, ArrayUtils.toPrimitive(new Short[]{2}));
-        assertArrayEquals(new long[]{2, 3}, ArrayUtils.toPrimitive(new Long[]{2L, 3L}));
-        assertArrayEquals(new float[]{3.14f}, ArrayUtils.toPrimitive(new Float[]{3.14f}), 0.1f);
-        assertArrayEquals(new double[]{2.718}, ArrayUtils.toPrimitive(new Double[]{2.718}), 0.1);
+        assertArrayEquals(new boolean[] { true }, ArrayUtils.toPrimitive(new Boolean[] { true }));
+        assertArrayEquals(new char[] { 'a' }, ArrayUtils.toPrimitive(new Character[] { 'a' }));
+        assertArrayEquals(new byte[] { 1 }, ArrayUtils.toPrimitive(new Byte[] { 1 }));
+        assertArrayEquals(new int[] {}, ArrayUtils.toPrimitive(new Integer[] {}));
+        assertArrayEquals(new short[] { 2 }, ArrayUtils.toPrimitive(new Short[] { 2 }));
+        assertArrayEquals(new long[] { 2, 3 }, ArrayUtils.toPrimitive(new Long[] { 2L, 3L }));
+        assertArrayEquals(new float[] { 3.14f }, ArrayUtils.toPrimitive(new Float[] { 3.14f }), 0.1f);
+        assertArrayEquals(new double[] { 2.718 }, ArrayUtils.toPrimitive(new Double[] { 2.718 }), 0.1);
     }
 
     @Test
     void testToPrimitiveArrayViaObjectArray() {
         assertNull(ArrayUtils.toPrimitive((Object) null));
-        assertArrayEquals(new boolean[]{true}, (boolean[]) ArrayUtils.toPrimitive((Object) new Boolean[]{true}));
-        assertArrayEquals(new char[]{'a'}, (char[]) ArrayUtils.toPrimitive((Object) new Character[]{'a'}));
-        assertArrayEquals(new byte[]{1}, (byte[]) ArrayUtils.toPrimitive((Object) new Byte[]{1}));
-        assertArrayEquals(new int[]{}, (int[]) ArrayUtils.toPrimitive((Object) new Integer[]{}));
-        assertArrayEquals(new short[]{2}, (short[]) ArrayUtils.toPrimitive((Object) new Short[]{2}));
-        assertArrayEquals(new long[]{2, 3}, (long[]) ArrayUtils.toPrimitive((Object) new Long[]{2L, 3L}));
-        assertArrayEquals(new float[]{3.14f}, (float[]) ArrayUtils.toPrimitive((Object) new Float[]{3.14f}), 0.1f);
-        assertArrayEquals(new double[]{2.718}, (double[]) ArrayUtils.toPrimitive((Object) new Double[]{2.718}), 0.1);
+        assertArrayEquals(new boolean[] { true }, (boolean[]) ArrayUtils.toPrimitive((Object) new Boolean[] { true }));
+        assertArrayEquals(new char[] { 'a' }, (char[]) ArrayUtils.toPrimitive((Object) new Character[] { 'a' }));
+        assertArrayEquals(new byte[] { 1 }, (byte[]) ArrayUtils.toPrimitive((Object) new Byte[] { 1 }));
+        assertArrayEquals(new int[] {}, (int[]) ArrayUtils.toPrimitive((Object) new Integer[] {}));
+        assertArrayEquals(new short[] { 2 }, (short[]) ArrayUtils.toPrimitive((Object) new Short[] { 2 }));
+        assertArrayEquals(new long[] { 2, 3 }, (long[]) ArrayUtils.toPrimitive((Object) new Long[] { 2L, 3L }));
+        assertArrayEquals(new float[] { 3.14f }, (float[]) ArrayUtils.toPrimitive((Object) new Float[] { 3.14f }), 0.1f);
+        assertArrayEquals(new double[] { 2.718 }, (double[]) ArrayUtils.toPrimitive((Object) new Double[] { 2.718 }), 0.1);
+        assertArrayEquals(new String[] { "a" }, (String[]) ArrayUtils.toPrimitive(new String[] { "a" }));
     }
 
     @Test
@@ -6706,7 +6707,10 @@ void testToString() {
         assertEquals("{}", ArrayUtils.toString(new String[0]));
         assertEquals("{<null>}", ArrayUtils.toString(new String[]{null}));
         assertEquals("{pink,blue}", ArrayUtils.toString(new String[]{"pink", "blue"}));
+    }
 
+    @Test
+    void testToStringDefault() {
         assertEquals("<empty>", ArrayUtils.toString(null, "<empty>"));
         assertEquals("{}", ArrayUtils.toString(new Object[0], "<empty>"));
         assertEquals("{}", ArrayUtils.toString(new String[0], "<empty>"));