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annotate graal/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/vm/TruffleTCK.java @ 21889:45083be8a812

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Truffle: add a version string to the information provided with Language registration
author Michael Van De Vanter <michael.van.de.vanter@oracle.com>
date Fri, 05 Jun 2015 18:05:13 -0700
parents c8418635b575
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (c) 2012, 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.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.truffle.api.test.vm;
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24
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25 import com.oracle.truffle.api.vm.TruffleVM;
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26 import java.io.IOException;
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27 import java.util.Random;
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28 import static org.junit.Assert.*;
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29 import org.junit.Test;
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30
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31 /**
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32 * A collection of tests that can certify language implementaiton to be complient with most recent
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33 * requirements of the Truffle infrastructure and tooling. Subclass, implement abstract methods and
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34 * include in your test suite.
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35 */
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36 public abstract class TruffleTCK {
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37 private TruffleVM tckVM;
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38
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39 protected TruffleTCK() {
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40 }
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41
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42 /**
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43 * This methods is called before first test is executed. It's purpose is to set a TruffleVM with
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44 * your language up, so it is ready for testing.
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45 * {@link TruffleVM#eval(java.lang.String, java.lang.String) Execute} any scripts you need, and
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46 * prepare global symbols with proper names. The symbols will then be looked up by the
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47 * infrastructure (using the names provided by you from methods like {@link #plusInt()}) and
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48 * used for internal testing.
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49 *
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50 * @return initialized Truffle virtual machine
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51 * @throws java.lang.Exception thrown when the VM preparation fails
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52 */
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53 protected abstract TruffleVM prepareVM() throws Exception;
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54
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55 /**
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56 * Mimetype associated with your language. The mimetype will be passed to
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57 * {@link TruffleVM#eval(java.lang.String, java.lang.String)} method of the {@link #prepareVM()
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58 * created TruffleVM}.
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59 *
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60 * @return mime type of the tested language
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61 */
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62 protected abstract String mimeType();
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63
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64 /**
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65 * Name of function which will return value 42 as a number. The return value of the method
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66 * should be instance of {@link Number} and its {@link Number#intValue()} should return
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67 * <code>42</code>.
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68 *
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69 * @return name of globally exported symbol
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70 */
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71 protected abstract String fourtyTwo();
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72
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73 /**
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74 * Name of a function that returns <code>null</code>. Truffle languages are encouraged to have
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75 * their own type representing <code>null</code>, but when such value is returned from
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76 * {@link TruffleVM#eval}, it needs to be converted to real Java <code>null</code> by sending a
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77 * foreign access <em>isNull</em> message. There is a test to verify it is really true.
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78 *
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79 * @return name of globally exported symbol
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80 */
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81 protected abstract String returnsNull();
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82
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83 /**
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84 * Name of function to add two integer values together. The symbol will be invoked with two
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85 * parameters of type {@link Integer} and expects result of type {@link Number} which's
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86 * {@link Number#intValue()} is equivalent of <code>param1 + param2</code>.
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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 plusInt();
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91
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92 /**
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93 * Return a code snippet that is invalid in your language. Its
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94 * {@link TruffleVM#eval(java.lang.String, java.lang.String) evaluation} should fail and yield
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95 * an exception.
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96 *
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97 * @return code snippet invalid in the tested language
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98 */
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99 protected abstract String invalidCode();
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100
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101 private TruffleVM vm() throws Exception {
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102 if (tckVM == null) {
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103 tckVM = prepareVM();
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104 }
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105 return tckVM;
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106 }
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107
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108 //
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109 // The tests
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110 //
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111
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112 @Test
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113 public void testFortyTwo() throws Exception {
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114 TruffleVM.Symbol fourtyTwo = findGlobalSymbol(fourtyTwo());
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115
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116 Object res = fourtyTwo.invoke(null);
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117
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118 assert res instanceof Number : "should yield a number, but was: " + res;
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119
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120 Number n = (Number) res;
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121
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122 assert 42 == n.intValue() : "The value is 42 = " + n.intValue();
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123 }
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124
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125 @Test
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126 public void testNull() throws Exception {
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127 if (getClass() == TruffleTCK.class) {
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128 return;
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129 }
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130 TruffleVM.Symbol retNull = findGlobalSymbol(returnsNull());
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131
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132 Object res = retNull.invoke(null);
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133
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134 assertNull("Should yield real Java null", res);
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135 }
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136
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137 @Test
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138 public void testPlusWithInts() throws Exception {
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139 Random r = new Random();
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140 int a = r.nextInt(100);
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141 int b = r.nextInt(100);
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142
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143 TruffleVM.Symbol plus = findGlobalSymbol(plusInt());
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144
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145 Object res = plus.invoke(null, a, b);
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146
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147 assert res instanceof Number : "+ on two ints should yield a number, but was: " + res;
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148
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149 Number n = (Number) res;
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150
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151 assert a + b == n.intValue() : "The value is correct: (" + a + " + " + b + ") = " + n.intValue();
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152 }
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153
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154 @Test(expected = IOException.class)
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155 public void testInvalidTestMethod() throws Exception {
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156 String mime = mimeType();
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157 String code = invalidCode();
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158 Object ret = vm().eval(mime, code);
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159 fail("Should yield IOException, but returned " + ret);
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160 }
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161
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162 private TruffleVM.Symbol findGlobalSymbol(String name) throws Exception {
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163 TruffleVM.Symbol s = vm().findGlobalSymbol(name);
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164 assert s != null : "Symbol " + name + " is not found!";
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165 return s;
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166 }
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167 }