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annotate truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/TruffleTCK.java @ 21960:a88981c5ce8b

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Initial test for Java Interop: Perform callback to Math.min and Math.max via TruffleObject and Message.createExecute(2).
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Thu, 18 Jun 2015 16:09:38 +0200
parents 9c8c0937da41
children e7c2d36daf72
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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.vm.TruffleVM;
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28 import java.io.IOException;
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29 import java.util.Random;
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30 import static org.junit.Assert.*;
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31 import org.junit.Test;
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32
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33 /**
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34 * A collection of tests that can certify language implementation to be compliant with most recent
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35 * requirements of the Truffle infrastructure and tooling. Subclass, implement abstract methods and
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36 * include in your test suite.
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37 */
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38 public abstract class TruffleTCK {
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39 private TruffleVM tckVM;
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40
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41 protected TruffleTCK() {
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42 }
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43
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44 /**
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45 * This methods is called before first test is executed. It's purpose is to set a TruffleVM with
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46 * your language up, so it is ready for testing.
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47 * {@link TruffleVM#eval(java.lang.String, java.lang.String) Execute} any scripts you need, and
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48 * prepare global symbols with proper names. The symbols will then be looked up by the
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49 * infrastructure (using the names provided by you from methods like {@link #plusInt()}) and
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50 * used for internal testing.
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51 *
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52 * @return initialized Truffle virtual machine
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53 * @throws java.lang.Exception thrown when the VM preparation fails
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54 */
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55 protected abstract TruffleVM prepareVM() throws Exception;
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56
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57 /**
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58 * Mimetype associated with your language. The mimetype will be passed to
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59 * {@link TruffleVM#eval(java.lang.String, java.lang.String)} method of the {@link #prepareVM()
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60 * created TruffleVM}.
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61 *
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62 * @return mime type of the tested language
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63 */
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64 protected abstract String mimeType();
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65
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66 /**
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67 * Name of function which will return value 42 as a number. The return value of the method
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68 * should be instance of {@link Number} and its {@link Number#intValue()} should return
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69 * <code>42</code>.
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70 *
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71 * @return name of globally exported symbol
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72 */
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73 protected abstract String fourtyTwo();
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74
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75 /**
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76 * Name of a function that returns <code>null</code>. Truffle languages are encouraged to have
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77 * their own type representing <code>null</code>, but when such value is returned from
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78 * {@link TruffleVM#eval}, it needs to be converted to real Java <code>null</code> by sending a
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79 * foreign access <em>isNull</em> message. There is a test to verify it is really true.
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80 *
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81 * @return name of globally exported symbol
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82 */
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83 protected abstract String returnsNull();
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84
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85 /**
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86 * Name of function to add two integer values together. The symbol will be invoked with two
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87 * parameters of type {@link Integer} and expects result of type {@link Number} which's
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88 * {@link Number#intValue()} is equivalent of <code>param1 + param2</code>.
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89 *
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90 * @return name of globally exported symbol
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91 */
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92 protected abstract String plusInt();
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93
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94 /**
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95 * Name of a function in your language to perform a callback to foreign function. Your function
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96 * should prepare two numbers (18 and 32) and apply them to the function passed in as an
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97 * argument of your function. It should then add 10 to the returned value and return the result
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98 * back to its caller.
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99 *
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100 * @return name of globally exported symbol
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101 */
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102 protected abstract String applyNumbers();
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103
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104 /**
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105 * Return a code snippet that is invalid in your language. Its
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106 * {@link TruffleVM#eval(java.lang.String, java.lang.String) evaluation} should fail and yield
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107 * an exception.
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108 *
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109 * @return code snippet invalid in the tested language
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110 */
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111 protected abstract String invalidCode();
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112
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113 private TruffleVM vm() throws Exception {
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114 if (tckVM == null) {
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115 tckVM = prepareVM();
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116 }
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117 return tckVM;
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118 }
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119
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120 //
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121 // The tests
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122 //
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123
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124 @Test
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125 public void testFortyTwo() throws Exception {
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126 TruffleVM.Symbol fourtyTwo = findGlobalSymbol(fourtyTwo());
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127
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128 Object res = fourtyTwo.invoke(null);
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129
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130 assert res instanceof Number : "should yield a number, but was: " + res;
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131
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132 Number n = (Number) res;
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133
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134 assert 42 == n.intValue() : "The value is 42 = " + n.intValue();
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135 }
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136
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137 @Test
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138 public void testNull() throws Exception {
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139 if (getClass() == TruffleTCK.class) {
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140 return;
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141 }
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142 TruffleVM.Symbol retNull = findGlobalSymbol(returnsNull());
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143
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144 Object res = retNull.invoke(null);
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145
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146 assertNull("Should yield real Java null", res);
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147 }
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148
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149 @Test
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150 public void testPlusWithInts() throws Exception {
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151 Random r = new Random();
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152 int a = r.nextInt(100);
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153 int b = r.nextInt(100);
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154
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155 TruffleVM.Symbol plus = findGlobalSymbol(plusInt());
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156
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157 Object res = plus.invoke(null, a, b);
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158
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159 assert res instanceof Number : "+ on two ints should yield a number, but was: " + res;
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160
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161 Number n = (Number) res;
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162
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163 assert a + b == n.intValue() : "The value is correct: (" + a + " + " + b + ") = " + n.intValue();
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164 }
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165
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166 @Test(expected = IOException.class)
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167 public void testInvalidTestMethod() throws Exception {
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168 String mime = mimeType();
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169 String code = invalidCode();
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170 Object ret = vm().eval(mime, code);
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171 fail("Should yield IOException, but returned " + ret);
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172 }
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173
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174 @Test
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175 public void testMaxOrMinValue() throws Exception {
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176 TruffleVM.Symbol apply = findGlobalSymbol(applyNumbers());
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177
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178 Object res = apply.invoke(null, new MaxMinObject(true));
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179
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180 assert res instanceof Number : "result should be a number: " + res;
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181
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182 Number n = (Number) res;
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183
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184 assert 42 == n.intValue() : "32 > 18 and plus 10";
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185 }
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186
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187 @Test
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188 public void testMaxOrMinValue2() throws Exception {
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189 TruffleVM.Symbol apply = findGlobalSymbol(applyNumbers());
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190
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191 Object res = apply.invoke(null, new MaxMinObject(false));
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192
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193 assert res instanceof Number : "result should be a number: " + res;
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194
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195 Number n = (Number) res;
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196
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197 assert 28 == n.intValue() : "18 < 32 and plus 10";
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198 }
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199
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200 private TruffleVM.Symbol findGlobalSymbol(String name) throws Exception {
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201 TruffleVM.Symbol s = vm().findGlobalSymbol(name);
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202 assert s != null : "Symbol " + name + " is not found!";
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203 return s;
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204 }
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205 }