Mercurial > hg > truffle
annotate truffle/com.oracle.truffle.sl.test/src/com/oracle/truffle/sl/test/instrument/SLInstrumentTestRunner.java @ 21951:9c8c0937da41
Moving all sources into truffle subdirectory
author | Jaroslav Tulach <jaroslav.tulach@oracle.com> |
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date | Wed, 17 Jun 2015 10:58:08 +0200 |
parents | graal/com.oracle.truffle.sl.test/src/com/oracle/truffle/sl/test/instrument/SLInstrumentTestRunner.java@286aef83a9a7 |
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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.instrument.*; |
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40 import com.oracle.truffle.api.instrument.impl.*; |
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41 import com.oracle.truffle.api.source.*; |
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42 import com.oracle.truffle.sl.factory.*; |
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43 import com.oracle.truffle.sl.nodes.instrument.*; |
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44 import com.oracle.truffle.sl.nodes.local.*; |
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45 import com.oracle.truffle.sl.parser.*; |
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46 import com.oracle.truffle.sl.runtime.*; |
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47 import com.oracle.truffle.sl.test.instrument.SLInstrumentTestRunner.InstrumentTestCase; |
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48 |
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49 /** |
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50 * This class builds and executes the tests for instrumenting SL. Although much of this class is |
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51 * written with future automation in mind, at the moment the tests that are created are hard-coded |
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52 * according to the file name of the test. To be automated, an automatic way of generating both the |
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53 * node visitor and the node prober is necessary. |
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54 * |
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55 * Testing is done via JUnit via comparing execution outputs with expected outputs. |
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56 */ |
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57 public final class SLInstrumentTestRunner extends ParentRunner<InstrumentTestCase> { |
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58 |
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59 private static final String SOURCE_SUFFIX = ".sl"; |
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60 private static final String INPUT_SUFFIX = ".input"; |
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61 private static final String OUTPUT_SUFFIX = ".output"; |
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62 private static final String ASSIGNMENT_VALUE_SUFFIX = "_assnCount"; |
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63 |
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64 private static final String LF = System.getProperty("line.separator"); |
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65 private static SLContext slContext; |
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66 |
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67 static class InstrumentTestCase { |
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68 protected final Description name; |
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69 protected final Path path; |
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70 protected final String baseName; |
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71 protected final String sourceName; |
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72 protected final String testInput; |
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73 protected final String expectedOutput; |
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74 protected String actualOutput; |
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75 |
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76 protected InstrumentTestCase(Class<?> testClass, String baseName, String sourceName, Path path, String testInput, String expectedOutput) { |
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77 this.name = Description.createTestDescription(testClass, baseName); |
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78 this.baseName = baseName; |
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79 this.sourceName = sourceName; |
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80 this.path = path; |
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81 this.testInput = testInput; |
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82 this.expectedOutput = expectedOutput; |
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83 } |
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84 } |
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85 |
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86 private final List<InstrumentTestCase> testCases; |
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87 |
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88 public SLInstrumentTestRunner(Class<?> testClass) throws InitializationError { |
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89 super(testClass); |
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90 final SLStandardASTProber prober = new SLStandardASTProber(); |
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91 Probe.registerASTProber(prober); |
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92 try { |
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93 testCases = createTests(testClass); |
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94 } catch (IOException e) { |
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95 throw new InitializationError(e); |
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96 } finally { |
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97 Probe.unregisterASTProber(prober); |
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98 } |
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99 } |
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100 |
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101 @Override |
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102 protected List<InstrumentTestCase> getChildren() { |
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103 return testCases; |
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104 } |
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105 |
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106 @Override |
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107 protected Description describeChild(InstrumentTestCase child) { |
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108 return child.name; |
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109 } |
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110 |
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111 /** |
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112 * Tests are created based on the files that exist in the directory specified in the passed in |
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113 * annotation. Each test must have a source file and an expected output file. Optionally, each |
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114 * test can also include an input file. Source files have an ".sl" extension. Expected output |
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115 * have a ".output" extension. Input files have an ".input" extension. All these files must |
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116 * share the same base name to be correctly grouped. For example: "test1_assnCount.sl", |
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117 * "test1_assnCount.output" and "test1_assnCount.input" would all be used to create a single |
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118 * test called "test1_assnCount". |
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119 * |
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120 * This method iterates over the files in the directory and creates a new InstrumentTestCase for |
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121 * each group of related files. Each file is also expected to end with an identified at the end |
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122 * of the base name to indicate what visitor needs to be attached. Currently, visitors are hard |
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123 * coded to work on specific lines, so the code here is not currently generalizable. |
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124 * |
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125 * @param c The annotation containing the directory with tests |
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126 * @return A list of {@link InstrumentTestCase}s to run. |
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127 * @throws IOException If the directory is invalid. |
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128 * @throws InitializationError If no directory is provided. |
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129 * |
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130 * @see #runChild(InstrumentTestCase, RunNotifier) |
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131 */ |
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132 protected static List<InstrumentTestCase> createTests(final Class<?> c) throws IOException, InitializationError { |
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133 SLInstrumentTestSuite suite = c.getAnnotation(SLInstrumentTestSuite.class); |
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134 if (suite == null) { |
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135 throw new InitializationError(String.format("@%s annotation required on class '%s' to run with '%s'.", SLInstrumentTestSuite.class.getSimpleName(), c.getName(), |
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136 SLInstrumentTestRunner.class.getSimpleName())); |
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137 } |
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138 |
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139 String[] paths = suite.value(); |
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140 |
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141 Path root = null; |
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142 for (String path : paths) { |
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143 root = FileSystems.getDefault().getPath(path); |
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144 if (Files.exists(root)) { |
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145 break; |
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146 } |
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147 } |
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148 if (root == null && paths.length > 0) { |
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149 throw new FileNotFoundException(paths[0]); |
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150 } |
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151 |
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152 final Path rootPath = root; |
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153 |
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154 final List<InstrumentTestCase> testCases = new ArrayList<>(); |
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155 |
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156 // Scaffolding in place for future automation |
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157 Files.walkFileTree(rootPath, new SimpleFileVisitor<Path>() { |
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158 @Override |
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159 public FileVisitResult visitFile(Path sourceFile, BasicFileAttributes attrs) throws IOException { |
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160 String sourceName = sourceFile.getFileName().toString(); |
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161 if (sourceName.endsWith(SOURCE_SUFFIX)) { |
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162 String baseName = sourceName.substring(0, sourceName.length() - SOURCE_SUFFIX.length()); |
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163 |
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164 Path inputFile = sourceFile.resolveSibling(baseName + INPUT_SUFFIX); |
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165 String testInput = ""; |
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166 if (Files.exists(inputFile)) { |
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167 testInput = readAllLines(inputFile); |
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168 } |
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169 |
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170 Path outputFile = sourceFile.resolveSibling(baseName + OUTPUT_SUFFIX); |
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171 String expectedOutput = ""; |
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172 if (Files.exists(outputFile)) { |
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173 expectedOutput = readAllLines(outputFile); |
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174 } |
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175 |
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176 testCases.add(new InstrumentTestCase(c, baseName, sourceName, sourceFile, testInput, expectedOutput)); |
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177 |
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178 } |
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179 return FileVisitResult.CONTINUE; |
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180 } |
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181 }); |
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182 |
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183 return testCases; |
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184 } |
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185 |
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186 private static String readAllLines(Path file) throws IOException { |
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187 // fix line feeds for non unix os |
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188 StringBuilder outFile = new StringBuilder(); |
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189 for (String line : Files.readAllLines(file, Charset.defaultCharset())) { |
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190 outFile.append(line).append(LF); |
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191 } |
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192 return outFile.toString(); |
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193 } |
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194 |
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195 /** |
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196 * Executes the passed in test case. Instrumentation is added according to the name of the file |
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197 * as explained in {@link #createTests(Class)}. Note that this code is not generalizable. |
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198 */ |
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199 @Override |
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200 protected void runChild(InstrumentTestCase testCase, RunNotifier notifier) { |
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201 // TODO Current tests are hard-coded, automate this eventually |
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202 notifier.fireTestStarted(testCase.name); |
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203 |
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204 ByteArrayOutputStream out = new ByteArrayOutputStream(); |
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205 PrintWriter printer = new PrintWriter(out); |
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206 final ASTProber prober = new SLStandardASTProber(); |
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207 Probe.registerASTProber(prober); |
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208 try { |
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209 // We use the name of the file to determine what visitor to attach to it. |
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210 if (testCase.baseName.endsWith(ASSIGNMENT_VALUE_SUFFIX)) { |
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211 // Set up the execution context for Simple and register our two listeners |
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212 slContext = SLContextFactory.create(new BufferedReader(new StringReader(testCase.testInput)), printer); |
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213 |
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214 final Source source = Source.fromText(readAllLines(testCase.path), testCase.sourceName); |
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215 Parser.parseSL(slContext, source); |
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216 |
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217 // Attach an instrument to every probe tagged as an assignment |
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218 for (Probe probe : Probe.findProbesTaggedAs(StandardSyntaxTag.ASSIGNMENT)) { |
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219 SLPrintAssigmentValueListener slPrintAssigmentValueListener = new SLPrintAssigmentValueListener(printer); |
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220 probe.attach(Instrument.create(slPrintAssigmentValueListener, "SL print assignment value")); |
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221 } |
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222 |
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223 SLFunction main = slContext.getFunctionRegistry().lookup("main"); |
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224 main.getCallTarget().call(); |
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225 } else { |
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226 notifier.fireTestFailure(new Failure(testCase.name, new UnsupportedOperationException("No instrumentation found."))); |
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227 } |
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228 |
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229 printer.flush(); |
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230 String actualOutput = new String(out.toByteArray()); |
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231 Assert.assertEquals(testCase.expectedOutput, actualOutput); |
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232 } catch (Throwable ex) { |
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233 notifier.fireTestFailure(new Failure(testCase.name, ex)); |
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234 } finally { |
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235 Probe.unregisterASTProber(prober); |
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236 notifier.fireTestFinished(testCase.name); |
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237 } |
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238 |
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239 } |
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240 |
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241 public static void runInMain(Class<?> testClass, String[] args) throws InitializationError, NoTestsRemainException { |
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242 JUnitCore core = new JUnitCore(); |
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243 core.addListener(new TextListener(System.out)); |
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244 SLInstrumentTestRunner suite = new SLInstrumentTestRunner(testClass); |
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245 if (args.length > 0) { |
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246 suite.filter(new NameFilter(args[0])); |
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247 } |
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248 Result r = core.run(suite); |
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249 if (!r.wasSuccessful()) { |
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250 System.exit(1); |
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251 } |
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252 } |
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253 |
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254 private static final class NameFilter extends Filter { |
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255 private final String pattern; |
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256 |
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257 private NameFilter(String pattern) { |
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258 this.pattern = pattern.toLowerCase(); |
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259 } |
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260 |
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261 @Override |
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262 public boolean shouldRun(Description description) { |
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263 return description.getMethodName().toLowerCase().contains(pattern); |
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264 } |
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265 |
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266 @Override |
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267 public String describe() { |
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268 return "Filter contains " + pattern; |
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269 } |
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270 } |
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271 |
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272 /** |
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273 * This sample listener provides prints the value of an assignment (after the assignment is |
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274 * complete) to the {@link PrintWriter} specified in the constructor. This listener can only be |
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275 * attached at {@link SLWriteLocalVariableNode}, but provides no guards to protect it from being |
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276 * attached elsewhere. |
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277 */ |
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278 public final class SLPrintAssigmentValueListener extends DefaultSimpleInstrumentListener { |
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279 |
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280 private PrintWriter output; |
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281 |
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282 public SLPrintAssigmentValueListener(PrintWriter output) { |
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283 this.output = output; |
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284 } |
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285 |
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286 @Override |
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287 public void returnValue(Probe probe, Object result) { |
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288 output.println(result); |
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289 } |
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290 } |
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291 |
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292 } |