Apache
/
commons-math
mirror of https://github.com/apache/commons-math.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Javadoc. 

git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/math/trunk@359173 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Phil Steitz 2005-12-27 05:05:35 +00:00
parent 159d0b4a90
commit 1cad2e0d6b
1 changed files with 40 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
src/test/org/apache/commons/math/TestUtils.java
View File

@ -1,5 +1,5 @@
/*
* Copyright 2003-2004 The Apache Software Foundation.
* Copyright 2003-2005 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -34,12 +34,16 @@ import org.apache.commons.math.complex.ComplexFormat;
*/
public class TestUtils {
/**
*
* Collection of static methods used in math unit tests.
*/
private TestUtils() {
super();
}
/**
* Verifies that expected and actual are within delta, or are both NaN or
* infinities of the same sign.
*/
public static void assertEquals(double expected, double actual, double delta) {
assertEquals(null, expected, actual, delta);
}
@ -58,7 +62,7 @@ public class TestUtils {
}
}
/*
/**
* Verifies that the two arguments are exactly the same, either
* both NaN or infinities of same sign, or identical floating point values.
*/
@ -94,6 +98,13 @@ public class TestUtils {
}
}
/**
* Serializes an object to a temp file and then recovers the object from the file.
* Returns the deserialized object.
*
* @param o object to serialize and recover
* @return the recovered, deseriailized object
*/
public static Object serializeAndRecover(Object o){
Object result = null;
@ -140,9 +151,10 @@ public class TestUtils {
}
/**
* Verifies that serialization preserves equals and hashCode
* Verifies that serialization preserves equals and hashCode.
* Serializes the object, then recovers it and checks equals and hash code.
*
* @param object
* @param object the object to serialize and recover
*/
public static void checkSerializedEquality(Object object) {
Object object2 = serializeAndRecover(object);
@ -150,11 +162,32 @@ public class TestUtils {
Assert.assertEquals("HashCode check", object.hashCode(), object2.hashCode());
}
public static void assertRelativelyEquals(double expected, double actual, double relativeError) {
/**
* Verifies that the relative error in actual vs. expected is less than or
* equal to relativeError. If expected is infinite or NaN, actual must be
* the same (NaN or infinity of the same sign).
*
* @param expected expected value
* @param actual observed value
* @param relativeError maximum allowable relative error
*/
public static void assertRelativelyEquals(double expected, double actual,
double relativeError) {
assertRelativelyEquals(null, expected, actual, relativeError);
}
public static void assertRelativelyEquals(String msg, double expected, double actual, double relativeError) {
/**
* Verifies that the relative error in actual vs. expected is less than or
* equal to relativeError. If expected is infinite or NaN, actual must be
* the same (NaN or infinity of the same sign).
*
* @param msg message to return with failure
* @param expected expected value
* @param actual observed value
* @param relativeError maximum allowable relative error
*/
public static void assertRelativelyEquals(String msg, double expected,
double actual, double relativeError) {
if (Double.isNaN(expected)) {
Assert.assertTrue(msg, Double.isNaN(actual));
} else if (Double.isNaN(actual)) {