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annotate truffle/com.oracle.truffle.sl.test/src/com/oracle/truffle/sl/test/SLTestRunner.java @ 22024:216e0683bbf1

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made SLInstrumentTestRunner (maybe) find test classes when Truffle is not the primary suite
author Doug Simon <doug.simon@oracle.com>
date Tue, 21 Jul 2015 16:06:31 +0200
parents fee42ec8c59b
children 854e52a0869c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (c) 2012, 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;
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24
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25 import java.io.*;
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26 import java.net.*;
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27 import java.nio.charset.*;
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28 import java.nio.file.*;
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29 import java.nio.file.attribute.*;
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30 import java.util.*;
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31
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32 import org.junit.*;
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33 import org.junit.internal.*;
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34 import org.junit.runner.*;
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35 import org.junit.runner.manipulation.*;
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36 import org.junit.runner.notification.*;
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37 import org.junit.runners.*;
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38 import org.junit.runners.model.*;
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39
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40 import com.oracle.truffle.api.dsl.*;
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41 import com.oracle.truffle.api.vm.*;
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42 import com.oracle.truffle.sl.*;
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43 import com.oracle.truffle.sl.builtins.*;
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44 import com.oracle.truffle.sl.test.SLTestRunner.TestCase;
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45
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46 public final class SLTestRunner extends ParentRunner<TestCase> {
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47
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48 private static int repeats = 1;
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49
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50 private static final String SOURCE_SUFFIX = ".sl";
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51 private static final String INPUT_SUFFIX = ".input";
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52 private static final String OUTPUT_SUFFIX = ".output";
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53
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54 private static final String LF = System.getProperty("line.separator");
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55
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56 static class TestCase {
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57 protected final Description name;
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58 protected final Path path;
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59 protected final String sourceName;
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60 protected final String testInput;
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61 protected final String expectedOutput;
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62 protected String actualOutput;
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63
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64 protected TestCase(Class<?> testClass, String baseName, String sourceName, Path path, String testInput, String expectedOutput) {
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65 this.name = Description.createTestDescription(testClass, baseName);
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66 this.sourceName = sourceName;
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67 this.path = path;
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68 this.testInput = testInput;
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69 this.expectedOutput = expectedOutput;
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70 }
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71 }
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72
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73 private final List<TestCase> testCases;
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74
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75 public SLTestRunner(Class<?> runningClass) throws InitializationError {
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76 super(runningClass);
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77 try {
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78 testCases = createTests(runningClass);
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79 } catch (IOException e) {
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80 throw new InitializationError(e);
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81 }
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82 }
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83
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84 @Override
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85 protected Description describeChild(TestCase child) {
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86 return child.name;
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87 }
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88
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89 @Override
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90 protected List<TestCase> getChildren() {
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91 return testCases;
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92 }
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93
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94 protected static List<TestCase> createTests(final Class<?> c) throws IOException, InitializationError {
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95 SLTestSuite suite = c.getAnnotation(SLTestSuite.class);
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96 if (suite == null) {
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97 throw new InitializationError(String.format("@%s annotation required on class '%s' to run with '%s'.", SLTestSuite.class.getSimpleName(), c.getName(), SLTestRunner.class.getSimpleName()));
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98 }
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99
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100 String[] paths = suite.value();
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101
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102 Path root = getRootViaResourceURL(c, paths);
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103
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104 if (root == null) {
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105 for (String path : paths) {
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106 Path candidate = FileSystems.getDefault().getPath(path);
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107 if (Files.exists(candidate)) {
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108 root = candidate;
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109 break;
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110 }
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111 }
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112 }
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113 if (root == null && paths.length > 0) {
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114 throw new FileNotFoundException(paths[0]);
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115 }
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116
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117 final Path rootPath = root;
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118
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119 final List<TestCase> foundCases = new ArrayList<>();
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120 Files.walkFileTree(rootPath, new SimpleFileVisitor<Path>() {
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121 @Override
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122 public FileVisitResult visitFile(Path sourceFile, BasicFileAttributes attrs) throws IOException {
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123 String sourceName = sourceFile.getFileName().toString();
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124 if (sourceName.endsWith(SOURCE_SUFFIX)) {
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125 String baseName = sourceName.substring(0, sourceName.length() - SOURCE_SUFFIX.length());
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126
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127 Path inputFile = sourceFile.resolveSibling(baseName + INPUT_SUFFIX);
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128 String testInput = "";
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129 if (Files.exists(inputFile)) {
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130 testInput = readAllLines(inputFile);
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131 }
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132
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133 Path outputFile = sourceFile.resolveSibling(baseName + OUTPUT_SUFFIX);
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134 String expectedOutput = "";
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135 if (Files.exists(outputFile)) {
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136 expectedOutput = readAllLines(outputFile);
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137 }
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138
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139 foundCases.add(new TestCase(c, baseName, sourceName, sourceFile, testInput, expectedOutput));
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140 }
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141 return FileVisitResult.CONTINUE;
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142 }
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143 });
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144 return foundCases;
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145 }
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146
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147 public static Path getRootViaResourceURL(final Class<?> c, String[] paths) {
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148 URL url = c.getResource(c.getSimpleName() + ".class");
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149 if (url != null) {
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150 String externalForm = url.toExternalForm();
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151 if (externalForm.startsWith("file:")) {
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152 char sep = File.separatorChar;
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153 String suffix = sep + "bin" + sep + c.getName().replace('.', sep) + ".class";
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154 if (externalForm.endsWith(suffix)) {
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155 String base = externalForm.substring("file:".length(), externalForm.length() - suffix.length());
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156 for (String path : paths) {
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157 String candidate = base + sep + path;
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158 if (new File(candidate).exists()) {
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159 return FileSystems.getDefault().getPath(candidate);
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160 }
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161 }
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162 }
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163 }
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164 }
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165 return null;
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166 }
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167
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168 private static String readAllLines(Path file) throws IOException {
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169 // fix line feeds for non unix os
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170 StringBuilder outFile = new StringBuilder();
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171 for (String line : Files.readAllLines(file, Charset.defaultCharset())) {
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172 outFile.append(line).append(LF);
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173 }
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174 return outFile.toString();
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175 }
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176
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177 public static void setRepeats(int repeats) {
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178 SLTestRunner.repeats = repeats;
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179 }
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180
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181 private static final List<NodeFactory<? extends SLBuiltinNode>> builtins = new ArrayList<>();
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182
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183 public static void installBuiltin(NodeFactory<? extends SLBuiltinNode> builtin) {
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184 builtins.add(builtin);
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185 }
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186
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187 @Override
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188 protected void runChild(TestCase testCase, RunNotifier notifier) {
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189 notifier.fireTestStarted(testCase.name);
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190
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191 ByteArrayOutputStream out = new ByteArrayOutputStream();
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192 PrintWriter printer = new PrintWriter(out);
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193 try {
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194 TruffleVM vm = TruffleVM.newVM().stdIn(new BufferedReader(new StringReader(repeat(testCase.testInput, repeats)))).stdOut(printer).build();
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195
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196 String script = readAllLines(testCase.path);
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197 SLLanguage.run(vm, testCase.path.toUri(), null, printer, repeats, builtins);
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198
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199 printer.flush();
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200 String actualOutput = new String(out.toByteArray());
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201 Assert.assertEquals(script, repeat(testCase.expectedOutput, repeats), actualOutput);
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202 } catch (Throwable ex) {
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203 notifier.fireTestFailure(new Failure(testCase.name, new IllegalStateException("Cannot run " + testCase.sourceName, ex)));
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204 } finally {
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205 notifier.fireTestFinished(testCase.name);
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206 }
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207 }
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208
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209 private static String repeat(String s, int count) {
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210 StringBuilder result = new StringBuilder(s.length() * count);
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211 for (int i = 0; i < count; i++) {
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212 result.append(s);
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213 }
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214 return result.toString();
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215 }
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216
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217 public static void runInMain(Class<?> testClass, String[] args) throws InitializationError, NoTestsRemainException {
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218 JUnitCore core = new JUnitCore();
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219 core.addListener(new TextListener(System.out));
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220 SLTestRunner suite = new SLTestRunner(testClass);
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221 if (args.length > 0) {
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222 suite.filter(new NameFilter(args[0]));
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223 }
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224 Result r = core.run(suite);
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225 if (!r.wasSuccessful()) {
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226 System.exit(1);
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227 }
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228 }
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229
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230 private static final class NameFilter extends Filter {
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231 private final String pattern;
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232
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233 private NameFilter(String pattern) {
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234 this.pattern = pattern.toLowerCase();
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235 }
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236
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237 @Override
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238 public boolean shouldRun(Description description) {
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239 return description.getMethodName().toLowerCase().contains(pattern);
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240 }
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241
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242 @Override
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243 public String describe() {
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244 return "Filter contains " + pattern;
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245 }
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246 }
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247
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248 }