/*
* Copyright 2006 The Android Open Source Project
*/
import java.lang.reflect.Array;
/**
* Test java.lang.reflect.Array.
*/
public class Main {
public static void main(String[] args) {
testSingleInt();
testSingleChar();
testSingleShort();
testSingleLong();
testSingle();
testMultiInt();
testMulti();
testAbstract();
System.out.println("ReflectArrayTest passed");
}
static void testSingleInt() {
Object intArray;
intArray = Array.newInstance(Integer.TYPE, 2);
int[] array = (int[]) intArray;
array[0] = 5;
Array.setInt(intArray, 1, 6);
if (Array.getInt(intArray, 0) != 5)
throw new RuntimeException();
if (array[1] != 6)
throw new RuntimeException();
try {
array[2] = 27;
throw new RuntimeException("store should have failed");
} catch (ArrayIndexOutOfBoundsException abe) { }
try {
Array.setInt(intArray, 2, 27);
throw new RuntimeException("store should have failed");
} catch (ArrayIndexOutOfBoundsException abe) { }
if (array.length != Array.getLength(intArray) ||
array.length != 2)
{
throw new RuntimeException("bad len");
}
Integer x123 = Integer.valueOf(123);
Integer x456 = Integer.valueOf(456);
Array.set(intArray, 0, x123);
Array.set(intArray, 1, x456);
if (!Array.get(intArray, 0).equals(x123) || !Array.get(intArray, 1).equals(x456)) {
throw new RuntimeException("bad 123 or 456");
}
int[][] wrongArray;
try {
wrongArray = (int[][]) intArray;
throw new RuntimeException("cast should have failed");
} catch (ClassCastException cce) { }
intArray = Array.newInstance(Integer.TYPE, 0);
if (Array.getLength(intArray) != 0)
throw new RuntimeException();
System.out.println("ReflectArrayTest.testSingleInt passed");
}
static void testSingleChar() {
Object charArray = Array.newInstance(Character.TYPE, 7);
char[] array = (char[]) charArray;
array[0] = '0';
array[1] = 'W';
array[2] = '2';
array[3] = '3';
array[4] = 'X';
array[5] = '5';
array[6] = '6';
Array.setChar(charArray, 1, '1');
Array.setChar(charArray, 4, '4');
try {
Array.setShort(charArray, 3, (short) 'Y');
throw new RuntimeException("shouldn't allow short in char array");
} catch (IllegalArgumentException iae) {}
try {
Array.setInt(charArray, 5, 'Z');
throw new RuntimeException("shouldn't allow int in char array");
} catch (IllegalArgumentException iae) {}
try {
for (int i = 0; i < array.length; i++) {
if (Array.getInt(charArray, i) - '0' != i) {
throw new RuntimeException("mismatch: " + i + " is " + array[i]);
}
}
if (Array.getInt(charArray, 4) != '4') {
throw new RuntimeException("load should have worked");
}
} catch (IllegalArgumentException iae) {
iae.printStackTrace(System.out);
}
try {
Array.getByte(charArray, 2);
throw new RuntimeException("shouldn't allow read of char as byte");
} catch (IllegalArgumentException iae) {}
Array.setChar(charArray, 3, (char) 0xffff);
try {
if (Array.getInt(charArray, 3) != 0xffff) {
throw new RuntimeException("char got sign-extended? "
+ Array.getInt(charArray, 3));
}
} catch (IllegalArgumentException iae) {
iae.printStackTrace(System.out);
}
System.out.println("ReflectArrayTest.testSingleChar passed");
}
static void testSingleShort() {
Object shortArray = Array.newInstance(Short.TYPE, 1);
Array.setShort(shortArray, 0, (short) -1);
if (Array.getInt(shortArray, 0) != -1) {
throw new RuntimeException("short didn't get sign-extended");
}
Short box = (Short) Array.get(shortArray, 0);
System.out.println("ReflectArrayTest.testSingleShort passed");
}
static void testSingleLong() {
Object longArray = Array.newInstance(Long.TYPE, 2);
Array.setInt(longArray, 0, 123);
Array.setLong(longArray, 1, 0x1122334455667788L);
try {
Array.getInt(longArray, 0);
throw new RuntimeException("shouldn't allow read of long as int");
} catch (IllegalArgumentException iae) {}
long[] array = (long[]) longArray;
if (array[0] != 123 || array[1] != 0x1122334455667788L) {
throw new RuntimeException();
}
float f = Array.getFloat(longArray, 0);
if (f < 122.9 || f > 123.1) {
throw new RuntimeException("long-as-float failed - " + f);
}
if (Array.getLong(longArray, 1) != 0x1122334455667788L) {
throw new RuntimeException("long1 failed");
}
System.out.println("ReflectArrayTest.testSingleLong passed");
}
static void testSingle() {
Object strArray;
strArray = Array.newInstance(String.class, 2);
String[] array = (String[]) strArray;
array[0] = "entry zero";
Array.set(strArray, 1, "entry one");
try {
Array.set(strArray, 2, "entry two");
throw new RuntimeException("store should have failed");
} catch (ArrayIndexOutOfBoundsException abe) { }
//System.out.println("array: " + array);
if (!"entry zero".equals(Array.get(strArray, 0)))
throw new RuntimeException();
if (!"entry one".equals(array[1]))
throw new RuntimeException();
if (array.length != Array.getLength(strArray) ||
array.length != 2)
{
throw new RuntimeException("bad len");
}
try {
Array.set(strArray, 0, new Integer(5));
throw new RuntimeException("store of Integer should have failed");
} catch (IllegalArgumentException iae) {}
System.out.println("ReflectArrayTest.testSingle passed");
}
static void testMultiInt() {
Object intIntIntArray;
int[] dimensions = { 3, 2, 1 };
intIntIntArray = Array.newInstance(Integer.TYPE, dimensions);
int[][][] array3 = (int[][][]) intIntIntArray;
array3[0][0][0] = 123; // trouble
array3[2][1][0] = 456;
try {
array3[2][1][1] = 768;
throw new RuntimeException("store should have failed");
}
catch (ArrayIndexOutOfBoundsException abe) {
}
System.out.println("ReflectArrayTest.testMultiInt passed");
}
static void testMulti() {
Object strStrStrArray;
int[] dimensions = { 1, 2, 3 };
strStrStrArray = Array.newInstance(String.class, dimensions);
String[][][] array3 = (String[][][]) strStrStrArray;
array3[0][0][0] = "zero zero zero";
array3[0][1][2] = "zero one two";
try {
array3[1][0][0] = "bad store";
throw new RuntimeException("store should have failed");
}
catch (ArrayIndexOutOfBoundsException abe) {
}
try {
String[][] array2 = (String[][]) strStrStrArray;
throw new RuntimeException("expecting bad cast");
}
catch (ClassCastException cce) {
}
String[] strar = new String[4];
strar[2] = "zero one two ++";
array3[0][1] = strar;
System.out.println(array3[0][1][2]);
//System.out.println("array3: " + array3);
int[] dimensions2 = { 1, 2 };
strStrStrArray = Array.newInstance(String[].class, dimensions2);
array3 = (String[][][]) strStrStrArray;
array3[0][1] = new String[3];
array3[0][1][2] = "zero one two";
try {
array3[1][0][0] = "bad store";
throw new RuntimeException("store should have failed");
}
catch (ArrayIndexOutOfBoundsException abe) {
}
System.out.println("ReflectArrayTest.testMulti passed");
}
static void testAbstract() {
Object arrayOfAbstractClasses = Array.newInstance(Number.class, 1);
System.out.println(arrayOfAbstractClasses.getClass().toString() + " modifiers: " +
arrayOfAbstractClasses.getClass().getModifiers());
arrayOfAbstractClasses = Array.newInstance(Cloneable.class, 1);
System.out.println(arrayOfAbstractClasses.getClass().toString() + " modifiers: " +
arrayOfAbstractClasses.getClass().getModifiers());
System.out.println("ReflectArrayTest.testAbstract passed");
}
}