/*
* Copyright 2001-2005 Stephen Colebourne
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.joda.time.chrono.gj;
import java.util.Random;
import junit.framework.TestCase;
import org.joda.time.Chronology;
import org.joda.time.DateTime;
import org.joda.time.DateTimeField;
import org.joda.time.chrono.GregorianChronology;
import org.joda.time.chrono.JulianChronology;
/**
* Tests either the Julian or Gregorian chronology from org.joda.time.chrono.gj
* against the implementations in this package. It tests all the date fields
* against their principal methods.
* <p>
* Randomly generated values are fed into the DateTimeField methods and the
* results are compared between the two chronologies. If any result doesn't
* match, an error report is generated and the program exits. Each time this
* test program is run, the pseudo random number generator is seeded with the
* same value. This ensures consistent results between test runs.
* <p>
* The main method accepts three optional arguments: iterations, mode, seed. By
* default, iterations is set to 1,000,000. The test will take several minutes
* to run, depending on the computer's performance. Every 5 seconds a progress
* message is printed.
* <p>
* The mode can be either 'g' for proleptic gregorian (the default) or 'j' for
* proleptic julian. To override the default random number generator seed, pass
* in a third argument which accepts a long signed integer.
*
* @author Brian S O'Neill
*/
public class MainTest extends TestCase {
public static final int GREGORIAN_MODE = 0;
public static final int JULIAN_MODE = 1;
private static final long MILLIS_PER_YEAR = (long)365.2425 * 24 * 60 * 60 * 1000;
private static final long _1000_YEARS = 1000 * MILLIS_PER_YEAR;
private static final long _500_YEARS = 500 * MILLIS_PER_YEAR;
private static final long MAX_MILLIS = (10000 - 1970) * MILLIS_PER_YEAR;
private static final long MIN_MILLIS = (-10000 - 1970) * MILLIS_PER_YEAR;
// Show progess reports every 5 seconds.
private static final long UPDATE_INTERVAL = 5000;
/**
* Arguments: iterations [mode [seed]]
*/
public static void main(String[] args) throws Exception {
int iterations = 1000000;
int mode = GREGORIAN_MODE;
long seed = 1345435247779935L;
if (args.length > 0) {
iterations = Integer.parseInt(args[0]);
if (args.length > 1) {
if (args[1].startsWith("g")) {
mode = GREGORIAN_MODE;
} else if (args[1].startsWith("j")) {
mode = JULIAN_MODE;
} else {
throw new IllegalArgumentException
("Unknown mode: " + args[1]);
}
if (args.length > 2) {
seed = Long.parseLong(args[2]);
}
}
}
new MainTest(iterations, mode, seed).testChronology();
}
//-----------------------------------------------------------------------
private final int iIterations;
private final int iMode;
private final long iSeed;
private final Chronology iTest;
private final Chronology iActual;
/**
* @param iterations number of test iterations to perform
* @param mode GREGORIAN_MODE or JULIAN_MODE,0=Gregorian, 1=Julian
* @param seed seed for random number generator
*/
public MainTest(int iterations, int mode, long seed) {
super("testChronology");
iIterations = iterations;
iMode = mode;
iSeed = seed;
if (mode == GREGORIAN_MODE) {
iTest = new TestGregorianChronology();
iActual = GregorianChronology.getInstanceUTC();
} else {
iTest = new TestJulianChronology();
iActual = JulianChronology.getInstanceUTC();
}
}
//-----------------------------------------------------------------------
/**
* Main junit test
*/
public void testChronology() {
int iterations = iIterations;
long seed = iSeed;
String modeStr;
if (iMode == GREGORIAN_MODE) {
modeStr = "Gregorian";
} else {
modeStr = "Julian";
}
System.out.println("\nTesting " + modeStr + " chronology over " + iterations + " iterations");
Random rnd = new Random(seed);
long updateMillis = System.currentTimeMillis() + UPDATE_INTERVAL;
for (int i=0; i<iterations; i++) {
long now = System.currentTimeMillis();
if (now >= updateMillis) {
updateMillis = now + UPDATE_INTERVAL;
double complete = ((int)((double)i / iterations * 1000.0)) / 10d;
if (complete < 100) {
System.out.println("" + complete + "% complete (i=" + i + ")");
}
}
long millis = randomMillis(rnd);
int value = rnd.nextInt(200) - 100;
// millis2 is used for difference tests.
long millis2 = millis + rnd.nextLong() % _1000_YEARS - _500_YEARS;
try {
testFields(millis, value, millis2);
} catch (RuntimeException e) {
System.out.println("Failure index: " + i);
System.out.println("Test millis: " + millis);
System.out.println("Test value: " + value);
System.out.println("Test millis2: " + millis2);
fail(e.getMessage());
}
}
System.out.println("100% complete (i=" + iterations + ")");
}
//-----------------------------------------------------------------------
private void testFields(long millis, int value, long millis2) {
testField(iTest.year(), iActual.year(), millis, value, millis2);
testField(iTest.monthOfYear(), iActual.monthOfYear(), millis, value, millis2);
testField(iTest.dayOfMonth(), iActual.dayOfMonth(), millis, value, millis2);
testField(iTest.weekyear(), iActual.weekyear(), millis, value, millis2);
testField(iTest.weekOfWeekyear(),
iActual.weekOfWeekyear(), millis, value, millis2);
testField(iTest.dayOfWeek(), iActual.dayOfWeek(), millis, value, millis2);
testField(iTest.dayOfYear(), iActual.dayOfYear(), millis, value, millis2);
}
private void testField(DateTimeField fieldA, DateTimeField fieldB, long millis,
int value, long millis2)
{
int a, b;
long x, y;
boolean m, n;
// get test
a = fieldA.get(millis);
b = fieldB.get(millis);
testValue(fieldA, fieldB, "get", millis, a, b);
// getMaximumValue test
// Restrict this test to the fields that matter.
Class fieldClass = fieldA.getClass();
if (fieldClass == TestGJDayOfYearField.class ||
fieldClass == TestGJDayOfMonthField.class ||
fieldClass == TestGJWeekOfWeekyearField.class) {
a = fieldA.getMaximumValue(millis);
b = fieldB.getMaximumValue(millis);
testValue(fieldA, fieldB, "getMaximumValue", millis, a, b);
}
// set test
a = getWrappedValue
(value, fieldA.getMinimumValue(millis), fieldA.getMaximumValue(millis));
b = getWrappedValue
(value, fieldB.getMinimumValue(millis), fieldB.getMaximumValue(millis));
if (iMode == JULIAN_MODE && a == 0
&& (fieldA.getName().equals("year") || fieldA.getName().equals("weekyear"))) {
// Exclude setting Julian year of zero.
} else {
x = fieldA.set(millis, a);
y = fieldB.set(millis, b);
testMillis(fieldA, fieldB, "set", millis, x, y, a, b);
}
// roundFloor test
x = fieldA.roundFloor(millis);
y = fieldB.roundFloor(millis);
testMillis(fieldA, fieldB, "roundFloor", millis, x, y);
// roundCeiling test
x = fieldA.roundCeiling(millis);
y = fieldB.roundCeiling(millis);
testMillis(fieldA, fieldB, "roundCeiling", millis, x, y);
// roundHalfFloor test
x = fieldA.roundHalfFloor(millis);
y = fieldB.roundHalfFloor(millis);
testMillis(fieldA, fieldB, "roundHalfFloor", millis, x, y);
// roundHalfEven test
x = fieldA.roundHalfEven(millis);
y = fieldB.roundHalfEven(millis);
testMillis(fieldA, fieldB, "roundHalfEven", millis, x, y);
// remainder test
x = fieldA.remainder(millis);
y = fieldB.remainder(millis);
testMillis(fieldA, fieldB, "remainder", millis, x, y);
// add test
x = fieldA.add(millis, value);
y = fieldB.add(millis, value);
testMillis(fieldA, fieldB, "add", millis, x, y);
// addWrapField test
x = fieldA.addWrapField(millis, value);
y = fieldB.addWrapField(millis, value);
testMillis(fieldA, fieldB, "addWrapField", millis, x, y);
// getDifference test
x = fieldA.getDifference(millis, millis2);
y = fieldB.getDifference(millis, millis2);
try {
testValue(fieldA, fieldB, "getDifference", millis, x, y);
} catch (RuntimeException e) {
System.out.println("Test datetime 2: " + makeDatetime(millis2));
throw e;
}
// isLeap test
m = fieldA.isLeap(millis);
n = fieldB.isLeap(millis);
testBoolean(fieldA, fieldB, "isLeap", millis, m, n);
// getLeapAmount test
a = fieldA.getLeapAmount(millis);
b = fieldB.getLeapAmount(millis);
testValue(fieldA, fieldB, "getLeapAmount", millis, a, b);
}
private int getWrappedValue(int value, int minValue, int maxValue) {
if (minValue >= maxValue) {
throw new IllegalArgumentException("MIN > MAX");
}
int wrapRange = maxValue - minValue + 1;
value -= minValue;
if (value >= 0) {
return (value % wrapRange) + minValue;
}
int remByRange = (-value) % wrapRange;
if (remByRange == 0) {
return 0 + minValue;
}
return (wrapRange - remByRange) + minValue;
}
private void testValue(DateTimeField fieldA, DateTimeField fieldB,
String method, long millis, long valueA, long valueB) {
if (valueA != valueB) {
failValue(fieldA, fieldB, method, millis, valueA, valueB);
}
}
private void testMillis(DateTimeField fieldA, DateTimeField fieldB,
String method, long millis, long millisA, long millisB) {
if (millisA != millisB) {
failMillis(fieldA, fieldB, method, millis, millisA, millisB);
}
}
private void testMillis(DateTimeField fieldA, DateTimeField fieldB,
String method, long millis, long millisA, long millisB,
int valueA, int valueB) {
if (millisA != millisB) {
failMillis(fieldA, fieldB, method, millis, millisA, millisB, valueA, valueB);
}
}
private void testBoolean(DateTimeField fieldA, DateTimeField fieldB,
String method, long millis, boolean boolA, boolean boolB) {
if (boolA != boolB) {
failBoolean(fieldA, fieldB, method, millis, boolA, boolB);
}
}
private void failValue(DateTimeField fieldA, DateTimeField fieldB,
String method, long millis, long valueA, long valueB) {
System.out.println("Failure on " + makeName(fieldA, fieldB) + "." + method);
System.out.println(fieldA.getClass().getName() + "\n\tvs. "
+ fieldB.getClass().getName());
System.out.println("Datetime: " + makeDatetime(millis));
System.out.println("Millis from 1970: " + millis);
System.out.println(valueA + " != " + valueB);
throw new RuntimeException();
}
private void failMillis(DateTimeField fieldA, DateTimeField fieldB,
String method, long millis, long millisA, long millisB) {
System.out.println("Failure on " + makeName(fieldA, fieldB) + "." + method);
System.out.println(fieldA.getClass().getName() + "\n\tvs. "
+ fieldB.getClass().getName());
System.out.println("Datetime: " + makeDatetime(millis));
System.out.println("Millis from 1970: " + millis);
System.out.println(makeDatetime(millisA) + " != " + makeDatetime(millisB));
System.out.println(millisA + " != " + millisB);
System.out.println("Original value as reported by first field: " +
fieldA.get(millis));
System.out.println("Original value as reported by second field: " +
fieldB.get(millis));
System.out.println("First new value as reported by first field: " +
fieldA.get(millisA));
System.out.println("First new value as reported by second field: " +
fieldB.get(millisA));
System.out.println("Second new value as reported by first field: " +
fieldA.get(millisB));
System.out.println("Second new value as reported by second field: " +
fieldB.get(millisB));
throw new RuntimeException();
}
private void failMillis(DateTimeField fieldA, DateTimeField fieldB,
String method, long millis, long millisA, long millisB,
int valueA, int valueB) {
System.out.println("Failure on " + makeName(fieldA, fieldB) + "." + method);
System.out.println(fieldA.getClass().getName() + "\n\tvs. "
+ fieldB.getClass().getName());
System.out.println("Datetime: " + makeDatetime(millis));
System.out.println("Millis from 1970: " + millis);
System.out.println(makeDatetime(millisA) + " != " + makeDatetime(millisB));
System.out.println(millisA + " != " + millisB);
System.out.println("Original value as reported by first field: " +
fieldA.get(millis));
System.out.println("Original value as reported by second field: " +
fieldB.get(millis));
System.out.println("First new value as reported by first field: " +
fieldA.get(millisA));
System.out.println("First new value as reported by second field: " +
fieldB.get(millisA));
System.out.println("Second new value as reported by first field: " +
fieldA.get(millisB));
System.out.println("Second new value as reported by second field: " +
fieldB.get(millisB));
System.out.println("Value to set for first field: " + valueA);
System.out.println("Value to set for second field: " + valueB);
throw new RuntimeException();
}
private void failBoolean(DateTimeField fieldA, DateTimeField fieldB,
String method, long millis, boolean boolA, boolean boolB) {
System.out.println("Failure on " + makeName(fieldA, fieldB) + "." + method);
System.out.println(fieldA.getClass().getName() + "\n\tvs. "
+ fieldB.getClass().getName());
System.out.println("Datetime: " + makeDatetime(millis));
System.out.println("Millis from 1970: " + millis);
System.out.println(boolA + " != " + boolB);
throw new RuntimeException();
}
private String makeName(DateTimeField fieldA, DateTimeField fieldB) {
if (fieldA.getName().equals(fieldB.getName())) {
return fieldA.getName();
} else {
return fieldA.getName() + "/" + fieldB.getName();
}
}
private String makeDatetime(long millis) {
return makeDatetime(millis, iActual);
}
private String makeDatetime(long millis, Chronology chrono) {
return chrono.dayOfWeek().getAsShortText(millis) + " "
+ new DateTime(millis, chrono).toString() + " / " +
chrono.weekyear().get(millis) + "-W" + chrono.weekOfWeekyear().get(millis) +
"-" + chrono.dayOfWeek().get(millis);
}
private String makeDate(long millis) {
return makeDate(millis, iActual);
}
private String makeDate(long millis, Chronology chrono) {
return chrono.dayOfWeek().getAsShortText(millis) + " "
+ new DateTime(millis, chrono).toString("yyyy-MM-dd") + " / " +
chrono.weekyear().get(millis) + "-W" + chrono.weekOfWeekyear().get(millis) +
"-" + chrono.dayOfWeek().get(millis);
}
//-----------------------------------------------------------------------
private static long randomMillis(Random rnd) {
long millis = rnd.nextLong();
if (millis >= 0) {
millis = millis % MAX_MILLIS;
} else {
millis = millis % -MIN_MILLIS;
}
return millis;
}
private static void dump(Chronology chrono, long millis) {
System.out.println("year: " + chrono.year().get(millis));
System.out.println("monthOfYear: " + chrono.monthOfYear().get(millis));
System.out.println("dayOfMonth: " + chrono.dayOfMonth().get(millis));
System.out.println("weekyear: " + chrono.weekyear().get(millis));
System.out.println("weekOfWeekyear: " + chrono.weekOfWeekyear().get(millis));
System.out.println("dayOfWeek: " + chrono.dayOfWeek().get(millis));
System.out.println("dayOfYear: " + chrono.dayOfYear().get(millis));
}
}