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view graal/com.oracle.graal.test/src/com/oracle/graal/test/GraalTest.java @ 19001:5a79fa76b489
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author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Wed, 28 Jan 2015 04:05:07 +0100 |
parents | 86ec7f6f71b3 |
children | ea8d6fa333ab |
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/* * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.oracle.graal.test; import static org.junit.Assert.*; import java.io.*; import java.lang.reflect.*; import java.util.*; import org.junit.*; import org.junit.internal.*; /** * Base class for Graal tests. * <p> * This contains common utility methods and classes that are used in tests. */ public class GraalTest { protected Method getMethod(String methodName) { return getMethod(getClass(), methodName); } protected Method getMethod(Class<?> clazz, String methodName) { Method found = null; for (Method m : clazz.getMethods()) { if (m.getName().equals(methodName)) { Assert.assertNull(found); found = m; } } if (found == null) { /* Now look for non-public methods (but this does not look in superclasses). */ for (Method m : clazz.getDeclaredMethods()) { if (m.getName().equals(methodName)) { Assert.assertNull(found); found = m; } } } if (found != null) { return found; } else { throw new RuntimeException("method not found: " + methodName); } } protected Method getMethod(Class<?> clazz, String methodName, Class<?>[] parameterTypes) { try { return clazz.getMethod(methodName, parameterTypes); } catch (NoSuchMethodException | SecurityException e) { throw new RuntimeException("method not found: " + methodName + "" + Arrays.toString(parameterTypes)); } } /** * Compares two given objects for {@linkplain Assert#assertEquals(Object, Object) equality}. * Does a deep copy equality comparison if {@code expected} is an array. */ protected void assertDeepEquals(Object expected, Object actual) { assertDeepEquals(null, expected, actual); } /** * Compares two given objects for {@linkplain Assert#assertEquals(Object, Object) equality}. * Does a deep copy equality comparison if {@code expected} is an array. * * @param message the identifying message for the {@link AssertionError} */ protected void assertDeepEquals(String message, Object expected, Object actual) { if (ulpsDelta() > 0) { assertDeepEquals(message, expected, actual, ulpsDelta()); } else { assertDeepEquals(message, expected, actual, equalFloatsOrDoublesDelta()); } } /** * Compares two given values for equality, doing a recursive test if both values are arrays of * the same type. * * @param message the identifying message for the {@link AssertionError} * @param delta the maximum delta between two doubles or floats for which both numbers are still * considered equal. */ protected void assertDeepEquals(String message, Object expected, Object actual, double delta) { if (expected != null && actual != null) { Class<?> expectedClass = expected.getClass(); Class<?> actualClass = actual.getClass(); if (expectedClass.isArray()) { Assert.assertTrue(message, expected != null); Assert.assertTrue(message, actual != null); Assert.assertEquals(message, expectedClass, actual.getClass()); if (expected instanceof int[]) { Assert.assertArrayEquals(message, (int[]) expected, (int[]) actual); } else if (expected instanceof byte[]) { Assert.assertArrayEquals(message, (byte[]) expected, (byte[]) actual); } else if (expected instanceof char[]) { Assert.assertArrayEquals(message, (char[]) expected, (char[]) actual); } else if (expected instanceof short[]) { Assert.assertArrayEquals(message, (short[]) expected, (short[]) actual); } else if (expected instanceof float[]) { Assert.assertArrayEquals(message, (float[]) expected, (float[]) actual, (float) delta); } else if (expected instanceof long[]) { Assert.assertArrayEquals(message, (long[]) expected, (long[]) actual); } else if (expected instanceof double[]) { Assert.assertArrayEquals(message, (double[]) expected, (double[]) actual, delta); } else if (expected instanceof boolean[]) { new ExactComparisonCriteria().arrayEquals(message, expected, actual); } else if (expected instanceof Object[]) { new ComparisonCriteria() { @Override protected void assertElementsEqual(Object e, Object a) { assertDeepEquals(message, e, a, delta); } }.arrayEquals(message, expected, actual); } else { Assert.fail((message == null ? "" : message) + "non-array value encountered: " + expected); } } else if (expectedClass.equals(double.class) && actualClass.equals(double.class)) { Assert.assertEquals((double) expected, (double) actual, delta); } else if (expectedClass.equals(float.class) && actualClass.equals(float.class)) { Assert.assertEquals((float) expected, (float) actual, delta); } else { Assert.assertEquals(message, expected, actual); } } else { Assert.assertEquals(message, expected, actual); } } /** * Compares two given values for equality, doing a recursive test if both values are arrays of * the same type. Uses {@linkplain StrictMath#ulp(float) ULP}s for comparison of floats. * * @param message the identifying message for the {@link AssertionError} * @param ulpsDelta the maximum allowed ulps difference between two doubles or floats for which * both numbers are still considered equal. */ protected void assertDeepEquals(String message, Object expected, Object actual, int ulpsDelta) { ComparisonCriteria doubleUlpsDeltaCriteria = new ComparisonCriteria() { @Override protected void assertElementsEqual(Object e, Object a) { assertTrue(message, e instanceof Double && a instanceof Double); // determine acceptable error based on whether it is a normal number or a NaN/Inf double de = (Double) e; double epsilon = (!Double.isNaN(de) && Double.isFinite(de) ? ulpsDelta * Math.ulp(de) : 0); Assert.assertEquals(message, (Double) e, (Double) a, epsilon); } }; ComparisonCriteria floatUlpsDeltaCriteria = new ComparisonCriteria() { @Override protected void assertElementsEqual(Object e, Object a) { assertTrue(message, e instanceof Float && a instanceof Float); // determine acceptable error based on whether it is a normal number or a NaN/Inf float fe = (Float) e; float epsilon = (!Float.isNaN(fe) && Float.isFinite(fe) ? ulpsDelta * Math.ulp(fe) : 0); Assert.assertEquals(message, (Float) e, (Float) a, epsilon); } }; if (expected != null && actual != null) { Class<?> expectedClass = expected.getClass(); Class<?> actualClass = actual.getClass(); if (expectedClass.isArray()) { Assert.assertEquals(message, expectedClass, actualClass); if (expected instanceof double[] || expected instanceof Object[]) { doubleUlpsDeltaCriteria.arrayEquals(message, expected, actual); return; } else if (expected instanceof float[] || expected instanceof Object[]) { floatUlpsDeltaCriteria.arrayEquals(message, expected, actual); return; } } else if (expectedClass.equals(double.class) && actualClass.equals(double.class)) { doubleUlpsDeltaCriteria.arrayEquals(message, expected, actual); return; } else if (expectedClass.equals(float.class) && actualClass.equals(float.class)) { floatUlpsDeltaCriteria.arrayEquals(message, expected, actual); return; } } // anything else just use the non-ulps version assertDeepEquals(message, expected, actual, equalFloatsOrDoublesDelta()); } /** * Gets the value used by {@link #assertDeepEquals(Object, Object)} and * {@link #assertDeepEquals(String, Object, Object)} for the maximum delta between two doubles * or floats for which both numbers are still considered equal. */ protected double equalFloatsOrDoublesDelta() { return 0.0D; } // unless overridden ulpsDelta is not used protected int ulpsDelta() { return 0; } @SuppressWarnings("serial") public static class MultiCauseAssertionError extends AssertionError { private Throwable[] causes; public MultiCauseAssertionError(String message, Throwable... causes) { super(message); this.causes = causes; } @Override public void printStackTrace(PrintStream out) { super.printStackTrace(out); int num = 0; for (Throwable cause : causes) { if (cause != null) { out.print("cause " + (num++)); cause.printStackTrace(out); } } } @Override public void printStackTrace(PrintWriter out) { super.printStackTrace(out); int num = 0; for (Throwable cause : causes) { if (cause != null) { out.print("cause " + (num++) + ": "); cause.printStackTrace(out); } } } } }