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annotate graal/com.oracle.truffle.sl.test/src/com/oracle/truffle/sl/test/instrument/SLInstrumentTestRunner.java @ 19247:128586040207
Truffle/Instrumentation: TruffleEventReceiver renamed to TruffleEventListener
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
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date | Tue, 10 Feb 2015 16:44:11 -0800 |
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1 /* |
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2 * Copyright (c) 2014, 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.sl.test.instrument; |
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24 |
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25 import java.io.*; |
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26 import java.nio.charset.*; |
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27 import java.nio.file.*; |
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28 import java.nio.file.attribute.*; |
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29 import java.util.*; |
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30 |
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31 import org.junit.*; |
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32 import org.junit.internal.*; |
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33 import org.junit.runner.*; |
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34 import org.junit.runner.manipulation.*; |
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35 import org.junit.runner.notification.*; |
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36 import org.junit.runners.*; |
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37 import org.junit.runners.model.*; |
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38 |
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39 import com.oracle.truffle.api.frame.*; |
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40 import com.oracle.truffle.api.instrument.*; |
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41 import com.oracle.truffle.api.instrument.impl.*; |
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42 import com.oracle.truffle.api.nodes.*; |
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43 import com.oracle.truffle.api.source.*; |
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44 import com.oracle.truffle.sl.factory.*; |
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45 import com.oracle.truffle.sl.nodes.instrument.*; |
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46 import com.oracle.truffle.sl.nodes.local.*; |
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47 import com.oracle.truffle.sl.parser.*; |
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48 import com.oracle.truffle.sl.runtime.*; |
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49 import com.oracle.truffle.sl.test.instrument.SLInstrumentTestRunner.InstrumentTestCase; |
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50 |
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51 /** |
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52 * This class builds and executes the tests for instrumenting SL. Although much of this class is |
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53 * written with future automation in mind, at the moment the tests that are created are hard-coded |
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54 * according to the file name of the test. To be automated, an automatic way of generating both the |
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55 * node visitor and the node prober is necessary. |
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56 * |
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57 * Testing is done via JUnit via comparing execution outputs with expected outputs. |
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58 */ |
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59 public final class SLInstrumentTestRunner extends ParentRunner<InstrumentTestCase> { |
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60 |
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61 private static final String SOURCE_SUFFIX = ".sl"; |
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62 private static final String INPUT_SUFFIX = ".input"; |
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63 private static final String OUTPUT_SUFFIX = ".output"; |
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64 private static final String ASSIGNMENT_VALUE_SUFFIX = "_assnCount"; |
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65 |
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66 private static final String LF = System.getProperty("line.separator"); |
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67 private static SLContext slContext; |
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68 |
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69 static class InstrumentTestCase { |
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70 protected final Description name; |
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71 protected final Path path; |
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72 protected final String baseName; |
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73 protected final String sourceName; |
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74 protected final String testInput; |
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75 protected final String expectedOutput; |
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76 protected String actualOutput; |
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77 |
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78 protected InstrumentTestCase(Class<?> testClass, String baseName, String sourceName, Path path, String testInput, String expectedOutput) { |
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79 this.name = Description.createTestDescription(testClass, baseName); |
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80 this.baseName = baseName; |
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81 this.sourceName = sourceName; |
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82 this.path = path; |
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83 this.testInput = testInput; |
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84 this.expectedOutput = expectedOutput; |
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85 } |
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86 } |
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87 |
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88 private final List<InstrumentTestCase> testCases; |
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89 |
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90 public SLInstrumentTestRunner(Class<?> testClass) throws InitializationError { |
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91 super(testClass); |
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92 final SLStandardASTProber prober = new SLStandardASTProber(); |
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93 Probe.registerASTProber(prober); |
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94 try { |
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95 testCases = createTests(testClass); |
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96 } catch (IOException e) { |
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97 throw new InitializationError(e); |
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98 } finally { |
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99 Probe.unregisterASTProber(prober); |
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100 } |
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101 } |
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102 |
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103 @Override |
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104 protected List<InstrumentTestCase> getChildren() { |
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105 return testCases; |
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106 } |
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107 |
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108 @Override |
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109 protected Description describeChild(InstrumentTestCase child) { |
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110 return child.name; |
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111 } |
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112 |
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113 /** |
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114 * Tests are created based on the files that exist in the directory specified in the passed in |
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115 * annotation. Each test must have a source file and an expected output file. Optionally, each |
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116 * test can also include an input file. Source files have an ".sl" extension. Expected output |
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117 * have a ".output" extension. Input files have an ".input" extension. All these files must |
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118 * share the same base name to be correctly grouped. For example: "test1_assnCount.sl", |
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119 * "test1_assnCount.output" and "test1_assnCount.input" would all be used to create a single |
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120 * test called "test1_assnCount". |
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121 * |
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122 * This method iterates over the files in the directory and creates a new InstrumentTestCase for |
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123 * each group of related files. Each file is also expected to end with an identified at the end |
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124 * of the base name to indicate what visitor needs to be attached. Currently, visitors are hard |
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125 * coded to work on specific lines, so the code here is not currently generalizable. |
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126 * |
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127 * @param c The annotation containing the directory with tests |
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128 * @return A list of {@link InstrumentTestCase}s to run. |
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129 * @throws IOException If the directory is invalid. |
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130 * @throws InitializationError If no directory is provided. |
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131 * |
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132 * @see #runChild(InstrumentTestCase, RunNotifier) |
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133 */ |
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134 protected static List<InstrumentTestCase> createTests(final Class<?> c) throws IOException, InitializationError { |
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135 SLInstrumentTestSuite suite = c.getAnnotation(SLInstrumentTestSuite.class); |
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136 if (suite == null) { |
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137 throw new InitializationError(String.format("@%s annotation required on class '%s' to run with '%s'.", SLInstrumentTestSuite.class.getSimpleName(), c.getName(), |
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138 SLInstrumentTestRunner.class.getSimpleName())); |
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139 } |
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140 |
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141 String[] paths = suite.value(); |
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142 |
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143 Path root = null; |
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144 for (String path : paths) { |
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145 root = FileSystems.getDefault().getPath(path); |
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146 if (Files.exists(root)) { |
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147 break; |
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148 } |
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149 } |
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150 if (root == null && paths.length > 0) { |
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151 throw new FileNotFoundException(paths[0]); |
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152 } |
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153 |
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154 final Path rootPath = root; |
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155 |
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156 final List<InstrumentTestCase> testCases = new ArrayList<>(); |
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157 |
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158 // Scaffolding in place for future automation |
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159 Files.walkFileTree(rootPath, new SimpleFileVisitor<Path>() { |
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160 @Override |
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161 public FileVisitResult visitFile(Path sourceFile, BasicFileAttributes attrs) throws IOException { |
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162 String sourceName = sourceFile.getFileName().toString(); |
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163 if (sourceName.endsWith(SOURCE_SUFFIX)) { |
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164 String baseName = sourceName.substring(0, sourceName.length() - SOURCE_SUFFIX.length()); |
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165 |
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166 Path inputFile = sourceFile.resolveSibling(baseName + INPUT_SUFFIX); |
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167 String testInput = ""; |
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168 if (Files.exists(inputFile)) { |
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169 testInput = readAllLines(inputFile); |
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170 } |
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171 |
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172 Path outputFile = sourceFile.resolveSibling(baseName + OUTPUT_SUFFIX); |
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173 String expectedOutput = ""; |
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174 if (Files.exists(outputFile)) { |
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175 expectedOutput = readAllLines(outputFile); |
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176 } |
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177 |
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178 testCases.add(new InstrumentTestCase(c, baseName, sourceName, sourceFile, testInput, expectedOutput)); |
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179 |
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180 } |
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181 return FileVisitResult.CONTINUE; |
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182 } |
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183 }); |
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184 |
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185 return testCases; |
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186 } |
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187 |
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188 private static String readAllLines(Path file) throws IOException { |
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189 // fix line feeds for non unix os |
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190 StringBuilder outFile = new StringBuilder(); |
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191 for (String line : Files.readAllLines(file, Charset.defaultCharset())) { |
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192 outFile.append(line).append(LF); |
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193 } |
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194 return outFile.toString(); |
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195 } |
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196 |
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197 /** |
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198 * Executes the passed in test case. Instrumentation is added according to the name of the file |
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199 * as explained in {@link #createTests(Class)}. Note that this code is not generalizable. |
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200 */ |
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201 @Override |
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202 protected void runChild(InstrumentTestCase testCase, RunNotifier notifier) { |
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203 // TODO Current tests are hard-coded, automate this eventually |
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204 notifier.fireTestStarted(testCase.name); |
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205 |
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206 ByteArrayOutputStream out = new ByteArrayOutputStream(); |
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207 PrintStream printer = new PrintStream(out); |
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208 final ASTProber prober = new SLStandardASTProber(); |
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209 Probe.registerASTProber(prober); |
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210 try { |
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211 // We use the name of the file to determine what visitor to attach to it. |
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212 if (testCase.baseName.endsWith(ASSIGNMENT_VALUE_SUFFIX)) { |
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213 // Set up the execution context for Simple and register our two listeners |
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214 slContext = SLContextFactory.create(new BufferedReader(new StringReader(testCase.testInput)), printer); |
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215 |
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216 final Source source = Source.fromText(readAllLines(testCase.path), testCase.sourceName); |
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217 Parser.parseSL(slContext, source); |
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218 |
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219 // Attach an instrument to every probe tagged as an assignment |
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220 for (Probe probe : Probe.findProbesTaggedAs(StandardSyntaxTag.ASSIGNMENT)) { |
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221 SLPrintAssigmentValueListener slPrintAssigmentValueListener = new SLPrintAssigmentValueListener(printer); |
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222 probe.attach(Instrument.create(slPrintAssigmentValueListener, "SL print assignment value")); |
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223 } |
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224 |
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225 SLFunction main = slContext.getFunctionRegistry().lookup("main"); |
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226 main.getCallTarget().call(); |
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227 } else { |
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228 notifier.fireTestFailure(new Failure(testCase.name, new UnsupportedOperationException("No instrumentation found."))); |
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229 } |
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230 |
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231 String actualOutput = new String(out.toByteArray()); |
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232 Assert.assertEquals(testCase.expectedOutput, actualOutput); |
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233 } catch (Throwable ex) { |
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234 notifier.fireTestFailure(new Failure(testCase.name, ex)); |
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235 } finally { |
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236 Probe.unregisterASTProber(prober); |
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237 notifier.fireTestFinished(testCase.name); |
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238 } |
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239 |
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240 } |
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241 |
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242 public static void runInMain(Class<?> testClass, String[] args) throws InitializationError, NoTestsRemainException { |
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243 JUnitCore core = new JUnitCore(); |
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244 core.addListener(new TextListener(System.out)); |
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245 SLInstrumentTestRunner suite = new SLInstrumentTestRunner(testClass); |
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246 if (args.length > 0) { |
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247 suite.filter(new NameFilter(args[0])); |
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248 } |
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249 Result r = core.run(suite); |
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250 if (!r.wasSuccessful()) { |
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251 System.exit(1); |
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252 } |
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253 } |
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254 |
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255 private static final class NameFilter extends Filter { |
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256 private final String pattern; |
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257 |
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258 private NameFilter(String pattern) { |
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259 this.pattern = pattern.toLowerCase(); |
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260 } |
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261 |
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262 @Override |
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263 public boolean shouldRun(Description description) { |
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264 return description.getMethodName().toLowerCase().contains(pattern); |
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265 } |
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266 |
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267 @Override |
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268 public String describe() { |
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269 return "Filter contains " + pattern; |
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270 } |
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271 } |
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272 |
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273 /** |
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274 * This sample instrument listener provides prints the value of an assignment (after the |
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275 * assignment is complete) to the {@link PrintStream} specified in the constructor. This |
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276 * instrument can only be attached to a wrapped {@link SLWriteLocalVariableNode}, but provides |
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277 * no guards to protect it from being attached elsewhere. |
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278 */ |
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279 public final class SLPrintAssigmentValueListener extends DefaultEventListener { |
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280 |
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281 private PrintStream output; |
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282 |
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283 public SLPrintAssigmentValueListener(PrintStream output) { |
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284 this.output = output; |
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285 } |
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286 |
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287 @Override |
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288 public void returnValue(Node node, VirtualFrame frame, Object result) { |
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289 output.println(result); |
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290 } |
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291 } |
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292 |
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293 } |