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// Test for method java.lang.Math.getClass().getDeclaredFields()
// Copyright (C) 2012, 2013, 2014, 2015 Pavel Tisnovsky <ptisnovs@redhat.com>
// This file is part of Mauve.
// Mauve is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2, or (at your option)
// any later version.
// Mauve 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 for more details.
// You should have received a copy of the GNU General Public License
// along with Mauve; see the file COPYING. If not, write to
// the Free Software Foundation, Inc., 51 Franklin Street,
// Fifth Floor, Boston, MA 02110-1301 USA.
// Tags: JDK1.5
package gnu.testlet.java.lang.Math.classInfo;
import gnu.testlet.TestHarness;
import gnu.testlet.Testlet;
import java.lang.Math;
import java.util.Map;
import java.util.HashMap;
/**
* Test for method java.lang.Math.getClass().getDeclaredFields()
*/
public class getDeclaredFields implements Testlet
{
/**
* Runs the test using the specified harness.
*
* @param harness the test harness (<code>null</code> not permitted).
*/
public void test(TestHarness harness)
{
// map of declared fields which should exists
Map<String, String> testedDeclaredFields = null;
// map of declared fields for (Open)JDK6
Map<String, String> testedDeclaredFields_jdk6 = new HashMap<String, String>();
// map of declared fields for (Open)JDK7
Map<String, String> testedDeclaredFields_jdk7 = new HashMap<String, String>();
// map for fields declared in (Open)JDK6
testedDeclaredFields_jdk6.put("public static final double java.lang.Math.E", "E");
testedDeclaredFields_jdk6.put("public static final double java.lang.Math.PI", "PI");
testedDeclaredFields_jdk6.put("private static java.util.Random java.lang.Math.randomNumberGenerator", "randomNumberGenerator");
testedDeclaredFields_jdk6.put("private static long java.lang.Math.negativeZeroFloatBits", "negativeZeroFloatBits");
testedDeclaredFields_jdk6.put("private static long java.lang.Math.negativeZeroDoubleBits", "negativeZeroDoubleBits");
// map for fields declared in (Open)JDK7
testedDeclaredFields_jdk7.put("public static final double java.lang.Math.E", "E");
testedDeclaredFields_jdk7.put("public static final double java.lang.Math.PI", "PI");
testedDeclaredFields_jdk7.put("private static java.util.Random java.lang.Math.randomNumberGenerator", "randomNumberGenerator");
testedDeclaredFields_jdk7.put("private static long java.lang.Math.negativeZeroFloatBits", "negativeZeroFloatBits");
testedDeclaredFields_jdk7.put("private static long java.lang.Math.negativeZeroDoubleBits", "negativeZeroDoubleBits");
// get a runtime class of an Math
final Class c = Math.class;
// get the right map containing declared field signatures
testedDeclaredFields = getJavaVersion() < 7 ? testedDeclaredFields_jdk6 : testedDeclaredFields_jdk7;
// get all declared fields for this class
java.lang.reflect.Field[] declaredFields = c.getDeclaredFields();
// expected number of declared fields
final int expectedNumberOfDeclaredFields = testedDeclaredFields.size();
// basic check for a number of declared fields
harness.check(declaredFields.length, expectedNumberOfDeclaredFields);
// check if all fields exist
for (java.lang.reflect.Field declaredField: declaredFields) {
String fieldName = declaredField.getName();
String fieldString = declaredField.toString();
harness.check(testedDeclaredFields.containsKey(fieldString));
harness.check(testedDeclaredFields.get(fieldString), fieldName);
}
}
/**
* Returns version of Java. The input could have the following form: "1.7.0_06"
* and we are interested only in "7" in this case.
*
* @return Java version
*/
protected int getJavaVersion() {
String javaVersionStr = System.getProperty("java.version");
String[] parts = javaVersionStr.split("\\.");
return Integer.parseInt(parts[1]);
}
}
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