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annotate graal/com.oracle.truffle.sl.test/src/com/oracle/truffle/sl/test/instrument/SLInstrumentTestRunner.java @ 16880:7661cc464239

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Truffle/Instrumentation: Added Instrumentable interface and LineLocationToSourceSections map SL: Updated implementation to use new Instrumentable interface
author David Piorkowski <david.piorkowski@oracle.com>
date Thu, 21 Aug 2014 13:28:22 -0700
parents a24beb9c9993
children 997899955e72
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1 /*
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2 * Copyright (c) 2014, 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.*;
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40 import com.oracle.truffle.api.instrument.*;
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41 import com.oracle.truffle.api.source.*;
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42 import com.oracle.truffle.sl.nodes.instrument.*;
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43 import com.oracle.truffle.sl.parser.*;
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44 import com.oracle.truffle.sl.runtime.*;
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45 import com.oracle.truffle.sl.test.instrument.SLInstrumentTestRunner.InstrumentTestCase;
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46
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47 /**
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48 * This class builds and executes the tests for instrumenting SL. Although much of this class is
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49 * written with future automation in mind, at the moment the tests that are created are hard-coded
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50 * according to the file name of the test. To be automated, an automatic way of generating both the
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51 * node visitor and the node prober is necessary.
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52 *
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53 * Testing is done via JUnit via comparing execution outputs with expected outputs.
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54 */
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55 public final class SLInstrumentTestRunner extends ParentRunner<InstrumentTestCase> {
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56
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57 private static final String SOURCE_SUFFIX = ".sl";
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58 private static final String INPUT_SUFFIX = ".input";
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59 private static final String OUTPUT_SUFFIX = ".output";
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60 private static final String ASSIGNMENT_VALUE_SUFFIX = "_assnCount";
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61
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62 private static final String LF = System.getProperty("line.separator");
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63 private static SLContext slContext;
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64
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65 static class InstrumentTestCase {
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66 protected final Description name;
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67 protected final Path path;
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68 protected final String baseName;
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69 protected final String sourceName;
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70 protected final String testInput;
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71 protected final String expectedOutput;
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72 protected String actualOutput;
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73
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74 protected InstrumentTestCase(Class<?> testClass, String baseName, String sourceName, Path path, String testInput, String expectedOutput) {
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75 this.name = Description.createTestDescription(testClass, baseName);
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76 this.baseName = baseName;
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77 this.sourceName = sourceName;
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78 this.path = path;
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79 this.testInput = testInput;
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80 this.expectedOutput = expectedOutput;
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81 }
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82 }
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83
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84 private final List<InstrumentTestCase> testCases;
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85
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86 public SLInstrumentTestRunner(Class<?> testClass) throws InitializationError {
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87 super(testClass);
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88 try {
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89 testCases = createTests(testClass);
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90 } catch (IOException e) {
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91 throw new InitializationError(e);
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92 }
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93 }
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94
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95 @Override
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96 protected List<InstrumentTestCase> getChildren() {
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97 return testCases;
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98 }
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99
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100 @Override
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101 protected Description describeChild(InstrumentTestCase child) {
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102 return child.name;
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103 }
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104
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105 /**
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106 * Tests are created based on the files that exist in the directory specified in the passed in
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107 * annotation. Each test must have a source file and an expected output file. Optionally, each
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108 * test can also include an input file. Source files have an ".sl" extension. Expected output
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109 * have a ".output" extension. Input files have an ".input" extension. All these files must
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110 * share the same base name to be correctly grouped. For example: "test1_assnCount.sl",
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111 * "test1_assnCount.output" and "test1_assnCount.input" would all be used to create a single
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112 * test called "test1_assnCount".
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113 *
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114 * This method iterates over the files in the directory and creates a new InstrumentTestCase for
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115 * each group of related files. Each file is also expected to end with an identified at the end
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116 * of the base name to indicate what visitor needs to be attached. Currently, visitors are hard
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117 * coded to work on specific lines, so the code here is not currently generalizable.
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118 *
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119 * @param c The annotation containing the directory with tests
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120 * @return A list of {@link InstrumentTestCase}s to run.
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121 * @throws IOException If the directory is invalid.
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122 * @throws InitializationError If no directory is provided.
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123 *
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124 * @see #runChild(InstrumentTestCase, RunNotifier)
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125 */
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126 protected static List<InstrumentTestCase> createTests(final Class<?> c) throws IOException, InitializationError {
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127 SLInstrumentTestSuite suite = c.getAnnotation(SLInstrumentTestSuite.class);
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128 if (suite == null) {
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129 throw new InitializationError(String.format("@%s annotation required on class '%s' to run with '%s'.", SLInstrumentTestSuite.class.getSimpleName(), c.getName(),
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130 SLInstrumentTestRunner.class.getSimpleName()));
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131 }
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132
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133 String[] paths = suite.value();
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134
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135 Path root = null;
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136 for (String path : paths) {
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137 root = FileSystems.getDefault().getPath(path);
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138 if (Files.exists(root)) {
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139 break;
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140 }
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141 }
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142 if (root == null && paths.length > 0) {
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143 throw new FileNotFoundException(paths[0]);
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144 }
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145
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146 final Path rootPath = root;
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147
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148 final List<InstrumentTestCase> testCases = new ArrayList<>();
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149
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150 // Scaffolding in place for future automation
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151 Files.walkFileTree(rootPath, new SimpleFileVisitor<Path>() {
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152 @Override
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153 public FileVisitResult visitFile(Path sourceFile, BasicFileAttributes attrs) throws IOException {
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154 String sourceName = sourceFile.getFileName().toString();
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155 if (sourceName.endsWith(SOURCE_SUFFIX)) {
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156 String baseName = sourceName.substring(0, sourceName.length() - SOURCE_SUFFIX.length());
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157
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158 Path inputFile = sourceFile.resolveSibling(baseName + INPUT_SUFFIX);
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159 String testInput = "";
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160 if (Files.exists(inputFile)) {
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161 testInput = readAllLines(inputFile);
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162 }
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163
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164 Path outputFile = sourceFile.resolveSibling(baseName + OUTPUT_SUFFIX);
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165 String expectedOutput = "";
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166 if (Files.exists(outputFile)) {
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167 expectedOutput = readAllLines(outputFile);
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168 }
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169
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170 testCases.add(new InstrumentTestCase(c, baseName, sourceName, sourceFile, testInput, expectedOutput));
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171
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172 }
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173 return FileVisitResult.CONTINUE;
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174 }
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175 });
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176
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177 return testCases;
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178 }
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179
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180 private static String readAllLines(Path file) throws IOException {
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181 // fix line feeds for non unix os
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182 StringBuilder outFile = new StringBuilder();
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183 for (String line : Files.readAllLines(file, Charset.defaultCharset())) {
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184 outFile.append(line).append(LF);
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185 }
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186 return outFile.toString();
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187 }
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188
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189 /**
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190 * Executes the passed in test case. Instrumentation is added according to the name of the file
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191 * as explained in {@link #createTests(Class)}. Note that this code is not generalizable.
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192 */
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193 @Override
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194 protected void runChild(InstrumentTestCase testCase, RunNotifier notifier) {
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195 // TODO Current tests are hard-coded, automate this eventually
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196 notifier.fireTestStarted(testCase.name);
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197
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198 ByteArrayOutputStream out = new ByteArrayOutputStream();
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199 PrintStream printer = new PrintStream(out);
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200 try {
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201 // We use the name of the file to determine what visitor to attach to it.
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202 if (testCase.baseName.endsWith(ASSIGNMENT_VALUE_SUFFIX)) {
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203 // Set up the execution context for Simple and register our two listeners
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204 slContext = new SLContext(new BufferedReader(new StringReader(testCase.testInput)), printer);
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205
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206 final Source source = Source.fromText(readAllLines(testCase.path), testCase.sourceName);
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207 Parser.parseSL(slContext, source);
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208 List<SLFunction> functionList = slContext.getFunctionRegistry().getFunctions();
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209
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210 // Since only functions can be global in SL, this guarantees that we instrument
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211 // everything of interest. Parsing must occur before accepting the visitors since
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212 // the visitor which creates our instrumentation points expects a complete AST.
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213
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214 for (SLFunction function : functionList) {
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215 RootCallTarget rootCallTarget = function.getCallTarget();
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216 rootCallTarget.getRootNode().accept(new SLInstrumenter(slContext));
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217 }
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218
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219 // We iterate over all tags the SLInsturmenter tagged as assignments and attach our
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220 // test instrument to those.
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221 for (Probe probe : slContext.findProbesTaggedAs(StandardSyntaxTag.ASSIGNMENT)) {
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222 if (probe.isTaggedAs(StandardSyntaxTag.ASSIGNMENT)) {
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223 probe.addInstrument(new SLPrintAssigmentValueInstrument(printer));
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224 }
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225 }
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226
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227 SLFunction main = slContext.getFunctionRegistry().lookup("main");
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228 main.getCallTarget().call();
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229 } else {
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230 notifier.fireTestFailure(new Failure(testCase.name, new UnsupportedOperationException("No instrumentation found.")));
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231 }
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232
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233 String actualOutput = new String(out.toByteArray());
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234 Assert.assertEquals(testCase.expectedOutput, actualOutput);
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235 } catch (Throwable ex) {
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236 notifier.fireTestFailure(new Failure(testCase.name, ex));
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237 } finally {
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238 notifier.fireTestFinished(testCase.name);
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239 }
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240
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241 }
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242
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243 public static void runInMain(Class<?> testClass, String[] args) throws InitializationError, NoTestsRemainException {
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244 JUnitCore core = new JUnitCore();
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245 core.addListener(new TextListener(System.out));
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246 SLInstrumentTestRunner suite = new SLInstrumentTestRunner(testClass);
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247 if (args.length > 0) {
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248 suite.filter(new NameFilter(args[0]));
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249 }
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250 Result r = core.run(suite);
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251 if (!r.wasSuccessful()) {
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252 System.exit(1);
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253 }
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254 }
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255
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256 private static final class NameFilter extends Filter {
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257 private final String pattern;
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258
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259 private NameFilter(String pattern) {
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260 this.pattern = pattern.toLowerCase();
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261 }
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262
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263 @Override
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264 public boolean shouldRun(Description description) {
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265 return description.getMethodName().toLowerCase().contains(pattern);
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266 }
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267
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268 @Override
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269 public String describe() {
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270 return "Filter contains " + pattern;
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271 }
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272 }
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273 }