jdk8-mips64-public/nashorn: test/script/basic/javaarrayconversion.js@61ffdd1b89f2 (annotated)

test/script/basic/javaarrayconversion.js@61ffdd1b89f2 (annotated)

test/script/basic/javaarrayconversion.js

Thu, 24 May 2018 16:39:31 +0800

author: aoqi
date: Thu, 24 May 2018 16:39:31 +0800
changeset 1959: 61ffdd1b89f2
parent 1533: 8edb98264b4f
parent 1205: 4112748288bb
permissions: -rw-r--r--

Merge

 /*
  * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 /**
  * Tests for conversion of JavaScript arrays to Java arrays and the other
  * way round. Also generally useful as a JavaScript-to-Java type conversion
  * test.
  *
  * @test
  * @run
  */
 var x; // used for undefined
 var testCount = 0;
 function testF(inputValue, type, testFn) {
   var x = Java.to([inputValue], type + "[]")[0];
   if(!testFn(x)) {
     throw ("unexpected value: " + x)
   }
   ++testCount;
 }
 function test(inputValue, type, expectedValue) {
   testF(inputValue, type, function(x) { return x === expectedValue })
 }
 function testNaN(inputValue, type) {
   testF(inputValue, type, isNaN)
 }
 // Those labeled "Correct?" are not clearly correct conversions. Those
 // labeled "TypeError maybe?" could actually throw a TypeError, or only
 // throw a TypeError when in strict mode.
 // The case of ("false", "boolean") => true is particularly amusing.
 test(x, "int", 0) // Correct? TypeError maybe?
 test(null, "int", 0) // Correct? TypeError maybe?
 test(1234, "int", 1234)
 test("1234", "int", 1234)
 test("1234.49", "int", 1234)
 test("1234.51", "int", 1234) // truncates, not rounds
 test(true, "int", 1)
 test(false, "int", 0)
 test("foo", "int", 0) // Correct? TypeError maybe?
 test(x, "boolean", false) // Correct? TypeError maybe?
 test(null, "boolean", false) // Correct? TypeError maybe?
 test(0, "boolean", false)
 test(1234, "boolean", true)
 test("foo", "boolean", true)
 test("", "boolean", false)
 test("false", "boolean", true) // Correct? false maybe?
 test(x, "java.lang.String", "undefined") // Correct? TypeError maybe?
 test(null, "java.lang.String", null)
 test(1234, "java.lang.String", "1234")
 test(1234.5, "java.lang.String", "1234.5")
 test(true, "java.lang.String", "true")
 test(false, "java.lang.String", "false")
 test(x, "java.lang.Integer", null) // Correct? TypeError maybe?
 test(null, "java.lang.Integer", null)
 test(1234, "java.lang.Integer", 1234)
 test("1234", "java.lang.Integer", 1234)
 test("1234.49", "java.lang.Integer", 1234)
 test("1234.51", "java.lang.Integer", 1234) // truncates, not rounds
 test(true, "java.lang.Integer", 1)
 test(false, "java.lang.Integer", 0)
 test("foo", "java.lang.Integer", 0) // Correct? TypeError maybe?
 test(x, "java.lang.Boolean", null) // Correct? TypeError maybe?
 test(null, "java.lang.Boolean", null)
 test(0, "java.lang.Boolean", false)
 test(1234, "java.lang.Boolean", true)
 test("foo", "java.lang.Boolean", true)
 test("", "java.lang.Boolean", false)
 test("false", "java.lang.Boolean", true) // Correct? false maybe?
 testNaN(x, "double")
 test(null, "double", 0)
 test(1234, "double", 1234)
 test("1234", "double", 1234)
 test("1234.5", "double", 1234.5)
 test(true, "double", 1)
 test(false, "double", 0)
 testNaN("foo", "double")
 testNaN(x, "java.lang.Double")
 test(null, "java.lang.Double", null)
 test(1234, "java.lang.Double", 1234)
 test("1234", "java.lang.Double", 1234)
 test("1234.5", "java.lang.Double", 1234.5)
 test(true, "java.lang.Double", 1)
 test(false, "java.lang.Double", 0)
 testNaN("foo", "java.lang.Double")
 test({ valueOf: function() { return 42; } }, "int", 42)
 test({ valueOf: function() { return "42"; } }, "int", 42)
 // If there's no valueOf, toString is used
 test({ toString: function() { return "42"; } }, "int", 42)
 // For numbers, valueOf takes precedence over toString
 test({ valueOf: function() { return "42"; },  toString: function() { return "43"; } }, "int", 42)
 test({ toString: function() { return "foo"; } }, "java.lang.String", "foo")
 // Yep, even if we have valueOf, toString from prototype takes precedence
 test({ valueOf: function() { return 42; } }, "java.lang.String", "[object Object]")
 // Converting to string, toString takes precedence over valueOf
 test({ valueOf: function() { return "42"; },  toString: function() { return "43"; } }, "java.lang.String", "43")
 function assertCanConvert(sourceType, targetType) {
   Java.to([new (Java.type(sourceType))()], targetType + "[]")
   ++testCount;
 }
 function assertCantConvert(sourceType, targetType) {
   try {
     Java.to([new (Java.type(sourceType))()], targetType + "[]")
     throw "no TypeError encountered"
   } catch(e) {
       if(!(e instanceof TypeError) ||
           !e.message.startsWith("Java.to conversion to array type")) {
         throw e;
       }
       ++testCount;
   }
 }
 // Arbitrary POJOs to JS Primitive type should work
 assertCanConvert("java.util.BitSet", "int")
 assertCanConvert("java.util.BitSet", "double")
 assertCanConvert("java.util.BitSet", "long")
 assertCanConvert("java.util.BitSet", "boolean")
 assertCanConvert("java.util.BitSet", "java.lang.String")
 // Arbitrary POJOs can't be converted to Java values
 assertCantConvert("java.util.BitSet", "java.lang.Double")
 assertCantConvert("java.util.BitSet", "java.lang.Long")
 /***************************************************************************
  * Now testing the other way round - Java arrays & collections to JavaScript
  **************************************************************************/
 function assert(x) {
   if(!x) {
     throw "Assertion failed"
   }
   ++testCount;
 }
 var intArray = new (Java.type("int[]"))(3)
 intArray[0] = 1234;
 intArray[1] = 42;
 intArray[2] = 5;
 var jsIntArray = Java.from(intArray)
 assert(jsIntArray instanceof Array);
 assert(jsIntArray[0] === 1234);
 assert(jsIntArray[1] === 42);
 assert(jsIntArray[2] === 5);
 // The arrays are copies, they don't reflect each other
 intArray[2] = 6;
 assert(jsIntArray[2] === 5);
 jsIntArray[2] = 7;
 assert(intArray[2] === 6);
 var byteArray = new (Java.type("byte[]"))(2)
 byteArray[0] = -128;
 byteArray[1] = 127;
 var jsByteArray = Java.from(byteArray)
 assert(jsByteArray instanceof Array);
 assert(jsByteArray[0] === -128);
 assert(jsByteArray[1] === 127);
 var shortArray = new (Java.type("short[]"))(2)
 shortArray[0] = -32768;
 shortArray[1] = 32767;
 var jsShortArray = Java.from(shortArray)
 assert(jsShortArray instanceof Array);
 assert(jsShortArray[0] === -32768);
 assert(jsShortArray[1] === 32767);
 var floatArray = new (Java.type("float[]"))(2)
 floatArray[0] = java.lang.Float.MIN_VALUE;
 floatArray[1] = java.lang.Float.MAX_VALUE;
 var jsFloatArray = Java.from(floatArray)
 assert(jsFloatArray instanceof Array);
 assert(jsFloatArray[0] == java.lang.Float.MIN_VALUE);
 assert(jsFloatArray[1] == java.lang.Float.MAX_VALUE);
 var charArray = new (Java.type("char[]"))(3)
 charArray[0] = "a";
 charArray[1] = "b";
 charArray[2] = "1";
 var jsCharArray = Java.from(charArray)
 assert(jsCharArray instanceof Array);
 assert(jsCharArray[0] === 97);
 assert(jsCharArray[1] === 98);
 assert(jsCharArray[2] === 49);
 var booleanArray = new (Java.type("boolean[]"))(2)
 booleanArray[0] = true;
 booleanArray[1] = false;
 var jsBooleanArray = Java.from(booleanArray)
 assert(jsBooleanArray instanceof Array);
 assert(jsBooleanArray[0] === true);
 assert(jsBooleanArray[1] === false);
 print(testCount + " tests completed ok")