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annotate truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/TruffleTCK.java @ 22135:e70b20f4bb00

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Implementing API for Java/Truffle interop. Based around JavaInterop.asJavaObject and JavaInterop.asTruffleObject methods. Connected to TruffleVM via Symbol.as(Class) wrapper. Verified by extended TCK.
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Mon, 07 Sep 2015 17:07:20 +0200
parents d045a505c2b3
children a583d7ffd285
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1 /*
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2 * Copyright (c) 2015, 2015, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation. Oracle designates this
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8 * particular file as subject to the "Classpath" exception as provided
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9 * by Oracle in the LICENSE file that accompanied this code.
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10 *
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11 * This code is distributed in the hope that it will be useful, but WITHOUT
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 * version 2 for more details (a copy is included in the LICENSE file that
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15 * accompanied this code).
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16 *
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17 * You should have received a copy of the GNU General Public License version
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18 * 2 along with this work; if not, write to the Free Software Foundation,
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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20 *
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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22 * or visit www.oracle.com if you need additional information or have any
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23 * questions.
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24 */
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25 package com.oracle.truffle.tck;
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26
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27 import com.oracle.truffle.api.interop.TruffleObject;
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28 import com.oracle.truffle.api.interop.java.JavaInterop;
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29 import com.oracle.truffle.api.source.Source;
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30 import com.oracle.truffle.api.vm.TruffleVM;
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31 import java.io.IOException;
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32 import java.util.Random;
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33 import java.util.logging.Level;
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34 import java.util.logging.Logger;
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35 import static org.junit.Assert.*;
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36 import org.junit.Test;
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37
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38 /**
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39 * A collection of tests that can certify language implementation to be compliant with most recent
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40 * requirements of the Truffle infrastructure and tooling. Subclass, implement abstract methods and
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41 * include in your test suite.
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42 */
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43 public abstract class TruffleTCK {
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44 private static final Logger LOG = Logger.getLogger(TruffleTCK.class.getName());
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45 private static final Random RANDOM = new Random();
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46 private TruffleVM tckVM;
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47
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48 protected TruffleTCK() {
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49 }
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50
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51 /**
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52 * This methods is called before first test is executed. It's purpose is to set a TruffleVM with
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53 * your language up, so it is ready for testing.
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54 * {@link TruffleVM#eval(com.oracle.truffle.api.source.Source) Execute} any scripts you need,
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55 * and prepare global symbols with proper names. The symbols will then be looked up by the
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56 * infrastructure (using the names provided by you from methods like {@link #plusInt()}) and
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57 * used for internal testing.
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58 *
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59 * @return initialized Truffle virtual machine
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60 * @throws java.lang.Exception thrown when the VM preparation fails
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61 */
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62 protected abstract TruffleVM prepareVM() throws Exception;
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63
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64 /**
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65 * MIME type associated with your language. The MIME type will be passed to
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66 * {@link TruffleVM#eval(com.oracle.truffle.api.source.Source)} method of the
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67 * {@link #prepareVM() created TruffleVM}.
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68 *
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69 * @return mime type of the tested language
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70 */
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71 protected abstract String mimeType();
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72
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73 /**
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74 * Name of function which will return value 42 as a number. The return value of the method
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75 * should be instance of {@link Number} and its {@link Number#intValue()} should return
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76 * <code>42</code>.
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77 *
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78 * @return name of globally exported symbol
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79 */
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80 protected abstract String fourtyTwo();
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81
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82 /**
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83 * Name of a function that returns <code>null</code>. Truffle languages are encouraged to have
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84 * their own type representing <code>null</code>, but when such value is returned from
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85 * {@link TruffleVM#eval}, it needs to be converted to real Java <code>null</code> by sending a
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86 * foreign access <em>isNull</em> message. There is a test to verify it is really true.
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87 *
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88 * @return name of globally exported symbol
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89 */
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90 protected abstract String returnsNull();
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91
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92 /**
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93 * Name of function to add two integer values together. The symbol will be invoked with two
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94 * parameters of type {@link Integer} and expects result of type {@link Number} which's
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95 * {@link Number#intValue()} is equivalent of <code>param1 + param2</code>.
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96 *
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97 * @return name of globally exported symbol
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98 */
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99 protected abstract String plusInt();
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100
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101 /**
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102 * Name of a function in your language to perform a callback to foreign function. Your function
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103 * should prepare two numbers (18 and 32) and apply them to the function passed in as an
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104 * argument of your function. It should then add 10 to the returned value and return the result
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105 * back to its caller.
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106 *
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107 * @return name of globally exported symbol
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108 */
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109 protected abstract String applyNumbers();
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110
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111 /**
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112 * Name of a function that counts number of its invocations in current {@link TruffleVM}
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113 * context. Your function should somehow keep a counter to remember number of its invocations
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114 * and always increment it. The first invocation should return <code>1</code>, the second
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115 * <code>2</code> and so on. The returned values are expected to be instances of {@link Number}.
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116 * <p>
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117 * The function will be used to test that two instances of your language can co-exist next to
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118 * each other. Without being mutually influenced.
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119 *
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120 * @return name of globally expected symbol
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121 */
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122 protected abstract String countInvocations();
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123
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124 /**
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125 * Return a code snippet that is invalid in your language. Its
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126 * {@link TruffleVM#eval(com.oracle.truffle.api.source.Source) evaluation} should fail and yield
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127 * an exception.
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128 *
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129 * @return code snippet invalid in the tested language
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130 */
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131 protected abstract String invalidCode();
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132
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133 /**
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134 * Name of a function that returns a compound object with members representing certain
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135 * operations. In the JavaScript the object should look like:
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136 *
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137 * <pre>
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138 * <b>var</b> obj = {
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139 * 'fourtyTwo': function {@link #fourtyTwo()},
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140 * 'plus': function {@link #plusInt()},
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141 * 'returnsNull': function {@link #returnsNull()},
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142 * 'returnsThis': function() { return obj; }
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143 * };
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144 * <b>return</b> obj;
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145 * </pre>
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146 *
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147 * The returned object shall have three functions that will be obtained and used exactly as
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148 * described in their Javadoc - e.g. {@link #fourtyTwo()}, {@link #plusInt()} and
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149 * {@link #returnsNull()}. In addition to that there should be one more function
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150 * <b>returnsThis</b> that will return the object itself again.
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151 *
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152 * @return name of a function that returns such compound object
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153 */
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154 protected String compoundObject() {
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155 return null;
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156 }
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157
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158 private TruffleVM vm() throws Exception {
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159 if (tckVM == null) {
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160 tckVM = prepareVM();
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161 }
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162 return tckVM;
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163 }
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164
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165 //
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166 // The tests
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167 //
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168
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169 @Test
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170 public void testFortyTwo() throws Exception {
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171 TruffleVM.Symbol fourtyTwo = findGlobalSymbol(fourtyTwo());
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172
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173 Object res = fourtyTwo.invoke(null).get();
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174
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175 assert res instanceof Number : "should yield a number, but was: " + res;
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176
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177 Number n = (Number) res;
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178
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179 assert 42 == n.intValue() : "The value is 42 = " + n.intValue();
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180 }
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181
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182 @Test
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183 public void testFortyTwoWithCompoundObject() throws Exception {
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184 CompoundObject obj = findCompoundSymbol("testFortyTwoWithCompoundObject");
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185 if (obj == null) {
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186 return;
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187 }
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188 Number res = obj.fourtyTwo();
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189 assertEquals("Should be 42", 42, res.intValue());
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190 }
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191
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192 @Test
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193 public void testNull() throws Exception {
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194 TruffleVM.Symbol retNull = findGlobalSymbol(returnsNull());
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195
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196 Object res = retNull.invoke(null).get();
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197
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198 assertNull("Should yield real Java null", res);
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199 }
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200
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201 @Test
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202 public void testNullInCompoundObject() throws Exception {
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203 CompoundObject obj = findCompoundSymbol("testNullInCompoundObject");
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204 if (obj == null) {
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205 return;
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206 }
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207 Object res = obj.returnsNull();
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208 assertNull("Should yield real Java null", res);
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209 }
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210
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211 @Test
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212 public void testPlusWithInts() throws Exception {
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213 int a = RANDOM.nextInt(100);
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214 int b = RANDOM.nextInt(100);
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215
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216 TruffleVM.Symbol plus = findGlobalSymbol(plusInt());
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217
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218 Number n = plus.invoke(null, a, b).as(Number.class);
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219 assert a + b == n.intValue() : "The value is correct: (" + a + " + " + b + ") = " + n.intValue();
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220 }
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221
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222 @Test
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223 public void testPlusWithIntsOnCompoundObject() throws Exception {
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224 int a = RANDOM.nextInt(100);
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225 int b = RANDOM.nextInt(100);
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226
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227 CompoundObject obj = findCompoundSymbol("testPlusWithIntsOnCompoundObject");
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228 if (obj == null) {
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229 return;
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230 }
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231
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232 Number n = obj.plus(a, b);
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233 assert a + b == n.intValue() : "The value is correct: (" + a + " + " + b + ") = " + n.intValue();
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234 }
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235
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236 @Test(expected = IOException.class)
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237 public void testInvalidTestMethod() throws Exception {
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238 String mime = mimeType();
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239 String code = invalidCode();
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240 Object ret = vm().eval(Source.fromText(code, "Invalid code").withMimeType(mime)).get();
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241 fail("Should yield IOException, but returned " + ret);
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242 }
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243
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244 @Test
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245 public void testMaxOrMinValue() throws Exception {
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246 TruffleVM.Symbol apply = findGlobalSymbol(applyNumbers());
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247
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248 TruffleObject fn = JavaInterop.asTruffleFunction(LongBinaryOperation.class, new MaxMinObject(true));
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249 Object res = apply.invoke(null, fn).get();
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250
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251 assert res instanceof Number : "result should be a number: " + res;
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252
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253 Number n = (Number) res;
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254
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255 assert 42 == n.intValue() : "32 > 18 and plus 10";
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256 }
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257
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258 @Test
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259 public void testMaxOrMinValue2() throws Exception {
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260 TruffleVM.Symbol apply = findGlobalSymbol(applyNumbers());
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261
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262 TruffleObject fn = JavaInterop.asTruffleFunction(LongBinaryOperation.class, new MaxMinObject(false));
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263 final TruffleVM.Symbol result = apply.invoke(null, fn);
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264
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265 try {
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266 String res = result.as(String.class);
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267 fail("Cannot be converted to String: " + res);
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268 } catch (ClassCastException ex) {
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269 // correct
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270 }
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271
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272 Number n = result.as(Number.class);
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273 assert 28 == n.intValue() : "18 < 32 and plus 10";
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274 }
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275
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276 @Test
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277 public void testCoExistanceOfMultipleLanguageInstances() throws Exception {
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278 final String countMethod = countInvocations();
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279 TruffleVM.Symbol count1 = findGlobalSymbol(countMethod);
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280 TruffleVM vm1 = tckVM;
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281 tckVM = null; // clean-up
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282 TruffleVM.Symbol count2 = findGlobalSymbol(countMethod);
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283 TruffleVM vm2 = tckVM;
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284
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285 assertNotSame("Two virtual machines allocated", vm1, vm2);
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286
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287 int prev1 = 0;
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288 int prev2 = 0;
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289 for (int i = 0; i < 10; i++) {
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290 int quantum = RANDOM.nextInt(10);
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291 for (int j = 0; j < quantum; j++) {
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292 Object res = count1.invoke(null).get();
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293 assert res instanceof Number : "expecting number: " + res;
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294 ++prev1;
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295 assert ((Number) res).intValue() == prev1 : "expecting " + prev1 + " but was " + res;
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296 }
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297 for (int j = 0; j < quantum; j++) {
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298 Object res = count2.invoke(null).get();
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299 assert res instanceof Number : "expecting number: " + res;
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300 ++prev2;
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301 assert ((Number) res).intValue() == prev2 : "expecting " + prev2 + " but was " + res;
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302 }
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303 assert prev1 == prev2 : "At round " + i + " the same number of invocations " + prev1 + " vs. " + prev2;
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304 }
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305
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306 }
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307
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308 private TruffleVM.Symbol findGlobalSymbol(String name) throws Exception {
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309 TruffleVM.Symbol s = vm().findGlobalSymbol(name);
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310 assert s != null : "Symbol " + name + " is not found!";
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311 return s;
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312 }
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313
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314 private CompoundObject findCompoundSymbol(String name) throws Exception {
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315 final String compoundObjectName = compoundObject();
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316 if (compoundObjectName == null) {
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317 final long introduced = 1441616302340L;
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318 long wait = (System.currentTimeMillis() - introduced) / 3600;
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319 if (wait < 100) {
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320 wait = 100;
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321 }
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322 LOG.log(Level.SEVERE, "compoundObject() method not overriden! Skipping {1} test for now. But sleeping for {0} ms.", new Object[]{wait, name});
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323 Thread.sleep(wait);
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324 return null;
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325 }
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326 TruffleVM.Symbol s = vm().findGlobalSymbol(compoundObjectName);
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327 assert s != null : "Symbol " + compoundObjectName + " is not found!";
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328 CompoundObject obj = s.invoke(null).as(CompoundObject.class);
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329 int traverse = RANDOM.nextInt(10);
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330 while (traverse-- >= 0) {
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331 obj = obj.returnsThis();
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332 }
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333 return obj;
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334 }
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335
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336 interface CompoundObject {
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337 Number fourtyTwo();
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338
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339 Number plus(int x, int y);
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340
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341 Object returnsNull();
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342
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343 CompoundObject returnsThis();
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344 }
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345 }