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annotate graal/com.oracle.jvmci.test/src/com/oracle/jvmci/test/TestBase.java @ 21709:3c17c0c41a6b

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moved com.oracle.asm.**.test to JVMCI namespace (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Wed, 03 Jun 2015 18:33:23 +0200
parents graal/com.oracle.graal.test/src/com/oracle/graal/test/GraalTest.java@ea8d6fa333ab
children
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1 /*
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2 * Copyright (c) 2013, 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.jvmci.test;
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24
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25 import java.io.*;
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26 import java.lang.reflect.*;
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27 import java.util.*;
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28
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29 import org.junit.*;
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30 import org.junit.internal.*;
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31
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32 /**
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33 * Base class that contains common utility methods and classes useful in unit tests.
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34 */
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35 public class TestBase {
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36
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37 protected Method getMethod(String methodName) {
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38 return getMethod(getClass(), methodName);
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39 }
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40
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41 protected Method getMethod(Class<?> clazz, String methodName) {
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42 Method found = null;
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43 for (Method m : clazz.getMethods()) {
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44 if (m.getName().equals(methodName)) {
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45 Assert.assertNull(found);
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46 found = m;
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47 }
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48 }
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49 if (found == null) {
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50 /* Now look for non-public methods (but this does not look in superclasses). */
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51 for (Method m : clazz.getDeclaredMethods()) {
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52 if (m.getName().equals(methodName)) {
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53 Assert.assertNull(found);
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54 found = m;
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55 }
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56 }
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57 }
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58 if (found != null) {
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59 return found;
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60 } else {
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61 throw new RuntimeException("method not found: " + methodName);
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62 }
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63 }
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64
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65 protected Method getMethod(Class<?> clazz, String methodName, Class<?>[] parameterTypes) {
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66 try {
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67 return clazz.getMethod(methodName, parameterTypes);
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68 } catch (NoSuchMethodException | SecurityException e) {
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69 throw new RuntimeException("method not found: " + methodName + "" + Arrays.toString(parameterTypes));
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70 }
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71 }
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72
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73 /**
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74 * Compares two given objects for {@linkplain Assert#assertEquals(Object, Object) equality}.
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75 * Does a deep copy equality comparison if {@code expected} is an array.
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76 */
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77 protected void assertDeepEquals(Object expected, Object actual) {
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78 assertDeepEquals(null, expected, actual);
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79 }
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80
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81 /**
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82 * Compares two given objects for {@linkplain Assert#assertEquals(Object, Object) equality}.
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83 * Does a deep copy equality comparison if {@code expected} is an array.
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84 *
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85 * @param message the identifying message for the {@link AssertionError}
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86 */
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87 protected void assertDeepEquals(String message, Object expected, Object actual) {
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88 if (ulpsDelta() > 0) {
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89 assertDeepEquals(message, expected, actual, ulpsDelta());
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90 } else {
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91 assertDeepEquals(message, expected, actual, equalFloatsOrDoublesDelta());
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92 }
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93 }
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94
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95 /**
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96 * Compares two given values for equality, doing a recursive test if both values are arrays of
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97 * the same type.
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98 *
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99 * @param message the identifying message for the {@link AssertionError}
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100 * @param delta the maximum delta between two doubles or floats for which both numbers are still
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101 * considered equal.
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102 */
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103 protected void assertDeepEquals(String message, Object expected, Object actual, double delta) {
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104 if (expected != null && actual != null) {
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105 Class<?> expectedClass = expected.getClass();
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106 Class<?> actualClass = actual.getClass();
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107 if (expectedClass.isArray()) {
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108 Assert.assertTrue(message, expected != null);
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109 Assert.assertTrue(message, actual != null);
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110 Assert.assertEquals(message, expectedClass, actual.getClass());
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111 if (expected instanceof int[]) {
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112 Assert.assertArrayEquals(message, (int[]) expected, (int[]) actual);
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113 } else if (expected instanceof byte[]) {
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114 Assert.assertArrayEquals(message, (byte[]) expected, (byte[]) actual);
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115 } else if (expected instanceof char[]) {
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116 Assert.assertArrayEquals(message, (char[]) expected, (char[]) actual);
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117 } else if (expected instanceof short[]) {
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118 Assert.assertArrayEquals(message, (short[]) expected, (short[]) actual);
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119 } else if (expected instanceof float[]) {
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120 Assert.assertArrayEquals(message, (float[]) expected, (float[]) actual, (float) delta);
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121 } else if (expected instanceof long[]) {
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122 Assert.assertArrayEquals(message, (long[]) expected, (long[]) actual);
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123 } else if (expected instanceof double[]) {
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124 Assert.assertArrayEquals(message, (double[]) expected, (double[]) actual, delta);
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125 } else if (expected instanceof boolean[]) {
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126 new ExactComparisonCriteria().arrayEquals(message, expected, actual);
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127 } else if (expected instanceof Object[]) {
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128 new ComparisonCriteria() {
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129 @Override
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130 protected void assertElementsEqual(Object e, Object a) {
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131 assertDeepEquals(message, e, a, delta);
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132 }
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133 }.arrayEquals(message, expected, actual);
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134 } else {
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135 Assert.fail((message == null ? "" : message) + "non-array value encountered: " + expected);
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136 }
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137 } else if (expectedClass.equals(double.class) && actualClass.equals(double.class)) {
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138 Assert.assertEquals((double) expected, (double) actual, delta);
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139 } else if (expectedClass.equals(float.class) && actualClass.equals(float.class)) {
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140 Assert.assertEquals((float) expected, (float) actual, delta);
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141 } else {
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142 Assert.assertEquals(message, expected, actual);
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143 }
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144 } else {
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145 Assert.assertEquals(message, expected, actual);
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146 }
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147 }
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148
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149 /**
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150 * Compares two given values for equality, doing a recursive test if both values are arrays of
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151 * the same type. Uses {@linkplain StrictMath#ulp(float) ULP}s for comparison of floats.
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152 *
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153 * @param message the identifying message for the {@link AssertionError}
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154 * @param ulpsDelta the maximum allowed ulps difference between two doubles or floats for which
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155 * both numbers are still considered equal.
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156 */
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157 protected void assertDeepEquals(String message, Object expected, Object actual, int ulpsDelta) {
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158 ComparisonCriteria doubleUlpsDeltaCriteria = new ComparisonCriteria() {
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159 @Override
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160 protected void assertElementsEqual(Object e, Object a) {
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161 assertTrue(message, e instanceof Double && a instanceof Double);
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162 // determine acceptable error based on whether it is a normal number or a NaN/Inf
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163 double de = (Double) e;
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164 double epsilon = (!Double.isNaN(de) && Double.isFinite(de) ? ulpsDelta * Math.ulp(de) : 0);
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165 Assert.assertEquals(message, (Double) e, (Double) a, epsilon);
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166 }
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167 };
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168
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169 ComparisonCriteria floatUlpsDeltaCriteria = new ComparisonCriteria() {
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170 @Override
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171 protected void assertElementsEqual(Object e, Object a) {
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172 assertTrue(message, e instanceof Float && a instanceof Float);
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173 // determine acceptable error based on whether it is a normal number or a NaN/Inf
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174 float fe = (Float) e;
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175 float epsilon = (!Float.isNaN(fe) && Float.isFinite(fe) ? ulpsDelta * Math.ulp(fe) : 0);
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176 Assert.assertEquals(message, (Float) e, (Float) a, epsilon);
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177 }
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178 };
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179
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180 if (expected != null && actual != null) {
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181 Class<?> expectedClass = expected.getClass();
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182 Class<?> actualClass = actual.getClass();
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183 if (expectedClass.isArray()) {
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184 Assert.assertEquals(message, expectedClass, actualClass);
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185 if (expected instanceof double[] || expected instanceof Object[]) {
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186 doubleUlpsDeltaCriteria.arrayEquals(message, expected, actual);
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187 return;
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188 } else if (expected instanceof float[] || expected instanceof Object[]) {
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189 floatUlpsDeltaCriteria.arrayEquals(message, expected, actual);
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190 return;
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191 }
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192 } else if (expectedClass.equals(double.class) && actualClass.equals(double.class)) {
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193 doubleUlpsDeltaCriteria.arrayEquals(message, expected, actual);
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194 return;
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195 } else if (expectedClass.equals(float.class) && actualClass.equals(float.class)) {
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196 floatUlpsDeltaCriteria.arrayEquals(message, expected, actual);
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197 return;
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198 }
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199 }
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200 // anything else just use the non-ulps version
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201 assertDeepEquals(message, expected, actual, equalFloatsOrDoublesDelta());
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202 }
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203
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204 /**
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205 * Gets the value used by {@link #assertDeepEquals(Object, Object)} and
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206 * {@link #assertDeepEquals(String, Object, Object)} for the maximum delta between two doubles
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207 * or floats for which both numbers are still considered equal.
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208 */
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209 protected double equalFloatsOrDoublesDelta() {
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210 return 0.0D;
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211 }
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212
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213 // unless overridden ulpsDelta is not used
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214 protected int ulpsDelta() {
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215 return 0;
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216 }
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217
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218 @SuppressWarnings("serial")
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219 public static class MultiCauseAssertionError extends AssertionError {
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220
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221 private Throwable[] causes;
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222
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223 public MultiCauseAssertionError(String message, Throwable... causes) {
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224 super(message);
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225 this.causes = causes;
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226 }
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227
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228 @Override
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229 public void printStackTrace(PrintStream out) {
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230 super.printStackTrace(out);
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231 int num = 0;
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232 for (Throwable cause : causes) {
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233 if (cause != null) {
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234 out.print("cause " + (num++));
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235 cause.printStackTrace(out);
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236 }
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237 }
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238 }
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239
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240 @Override
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241 public void printStackTrace(PrintWriter out) {
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242 super.printStackTrace(out);
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243 int num = 0;
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244 for (Throwable cause : causes) {
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245 if (cause != null) {
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246 out.print("cause " + (num++) + ": ");
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247 cause.printStackTrace(out);
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248 }
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249 }
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250 }
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251 }
19781
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252
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253 /*
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254 * Overrides to the normal JUnit {@link Assert} routines that provide varargs style formatting
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255 * and produce an exception stack trace with the assertion frames trimmed out.
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256 */
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257
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258 /**
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259 * Fails a test with the given message.
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260 *
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261 * @param message the identifying message for the {@link AssertionError} (<code>null</code>
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262 * okay)
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263 * @see AssertionError
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264 */
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265 public static void fail(String message, Object... objects) {
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266 AssertionError e;
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267 if (message == null) {
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268 e = new AssertionError();
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269 } else {
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270 e = new AssertionError(String.format(message, objects));
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271 }
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272 // Trim the assert frames from the stack trace
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273 StackTraceElement[] trace = e.getStackTrace();
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274 int start = 1; // Skip this frame
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275 String thisClassName = TestBase.class.getName();
19781
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276 while (start < trace.length && trace[start].getClassName().equals(thisClassName) && (trace[start].getMethodName().equals("assertTrue") || trace[start].getMethodName().equals("assertFalse"))) {
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277 start++;
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278 }
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279 e.setStackTrace(Arrays.copyOfRange(trace, start, trace.length));
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280 throw e;
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281 }
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282
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283 /**
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284 * Asserts that a condition is true. If it isn't it throws an {@link AssertionError} with the
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285 * given message.
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286 *
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287 * @param message the identifying message for the {@link AssertionError} (<code>null</code>
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288 * okay)
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289 * @param condition condition to be checked
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290 */
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291 public static void assertTrue(String message, boolean condition) {
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292 assertTrue(condition, message);
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293 }
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294
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295 /**
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296 * Asserts that a condition is true. If it isn't it throws an {@link AssertionError} without a
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297 * message.
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298 *
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299 * @param condition condition to be checked
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300 */
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301 public static void assertTrue(boolean condition) {
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302 assertTrue(condition, null);
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303 }
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304
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305 /**
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306 * Asserts that a condition is false. If it isn't it throws an {@link AssertionError} with the
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307 * given message.
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308 *
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309 * @param message the identifying message for the {@link AssertionError} (<code>null</code>
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310 * okay)
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311 * @param condition condition to be checked
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312 */
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313 public static void assertFalse(String message, boolean condition) {
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314 assertTrue(!condition, message);
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315 }
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316
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317 /**
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318 * Asserts that a condition is false. If it isn't it throws an {@link AssertionError} without a
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319 * message.
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320 *
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321 * @param condition condition to be checked
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322 */
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323 public static void assertFalse(boolean condition) {
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324 assertTrue(!condition, null);
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325 }
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326
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327 /**
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328 * Asserts that a condition is true. If it isn't it throws an {@link AssertionError} with the
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329 * given message.
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330 *
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331 * @param condition condition to be checked
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332 * @param message the identifying message for the {@link AssertionError}
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333 * @param objects arguments to the format string
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334 */
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335 public static void assertTrue(boolean condition, String message, Object... objects) {
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336 if (!condition) {
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337 fail(message, objects);
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338 }
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339 }
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340
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341 /**
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342 * Asserts that a condition is false. If it isn't it throws an {@link AssertionError} with the
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343 * given message produced by {@link String#format}.
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344 *
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345 * @param condition condition to be checked
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346 * @param message the identifying message for the {@link AssertionError}
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347 * @param objects arguments to the format string
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348 */
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349 public static void assertFalse(boolean condition, String message, Object... objects) {
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350 assertTrue(!condition, message, objects);
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351 }
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352
7717
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353 }