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annotate graal/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/vm/TruffleTCK.java @ 21557:31fc2fce38f3

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Merge.
author Doug Simon <doug.simon@oracle.com>
date Wed, 27 May 2015 13:32:18 +0200
parents b1530a6cce8c 3286fb5fea4a
children ed234a3178af
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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 java.util.*;
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26
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27 import org.junit.*;
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28
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29 import com.oracle.truffle.api.vm.*;
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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 class TruffleTCK { // abstract
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37 private TruffleVM tckVM;
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38
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39 public TruffleTCK() { // protected
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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 * infastructure (using the names provided by you from methods like {@link #plusInt()}) and used
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48 * 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 TruffleVM prepareVM() throws Exception { // abstract
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54 return null;
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55 }
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56
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57 /**
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58 * Name of function which will return value 42 as a number. The return value of the method
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59 * should be instance of {@link Number} and its {@link Number#intValue()} should return
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60 * <code>42</code>.
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61 *
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62 * @return name of globally exported symbol
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63 */
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64 protected String fourtyTwo() { // abstract
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65 return null;
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66 }
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67
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68 /**
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69 * Name of function to add two integer values together. The symbol will be invoked with two
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70 * parameters of type {@link Integer} and expects result of type {@link Number} which's
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71 * {@link Number#intValue()} is equivalent of <code>param1 + param2</code>.
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72 *
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73 * @return name of globally exported symbol
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74 */
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75 protected String plusInt() { // abstract
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76 return null;
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77 }
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78
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79 private TruffleVM vm() throws Exception {
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80 if (tckVM == null) {
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81 tckVM = prepareVM();
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82 }
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83 return tckVM;
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84 }
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85
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86 //
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87 // The tests
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88 //
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89
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90 @Test
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91 public void testFortyTwo() throws Exception {
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92 if (getClass() == TruffleTCK.class) {
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93 return;
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94 }
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95 TruffleVM.Symbol fourtyTwo = findGlobalSymbol(fourtyTwo());
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96
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97 Object res = fourtyTwo.invoke(null);
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98
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99 assert res instanceof Number : "should yield a number, but was: " + res;
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100
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101 Number n = (Number) res;
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102
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103 assert 42 == n.intValue() : "The value is 42 = " + n.intValue();
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104 }
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105
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106 @Test
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107 public void testPlusWithInts() throws Exception {
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108 if (getClass() == TruffleTCK.class) {
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109 return;
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110 }
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111 Random r = new Random();
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112 int a = r.nextInt(100);
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113 int b = r.nextInt(100);
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114
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115 TruffleVM.Symbol plus = findGlobalSymbol(plusInt());
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116
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117 Object res = plus.invoke(null, a, b);
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118
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119 assert res instanceof Number : "+ on two ints should yield a number, but was: " + res;
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120
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121 Number n = (Number) res;
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122
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123 assert a + b == n.intValue() : "The value is correct: (" + a + " + " + b + ") = " + n.intValue();
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124 }
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125
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126 private TruffleVM.Symbol findGlobalSymbol(String name) throws Exception {
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127 TruffleVM.Symbol s = vm().findGlobalSymbol(name);
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128 assert s != null : "Symbol " + name + " is not found!";
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129 return s;
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130 }
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131 }