TestCustomAppSettings.java

package jme3test.app;

import com.jme3.scene.Mesh;
import com.jme3.system.AppSettings;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.prefs.BackingStoreException;

public class TestCustomAppSettings {
    
    private static final String APPSETTINGS_KEY = "JME_AppSettingsTest";
    
    private static void assertEqual(Object a, Object b) {
        if (!a.equals(b)){
            throw new AssertionError();
        }
    }
    
    /**
     * Tests preference based AppSettings.
     */
    private static void testPreferenceSettings() {
        AppSettings settings = new AppSettings(false);
        settings.putBoolean("TestBool", true);
        settings.putInteger("TestInt", 123);
        settings.putString("TestStr", "HelloWorld");
        settings.putFloat("TestFloat", 123.567f);
        settings.put("TestObj", new Mesh()); // Objects not supported by preferences
        
        try {
            settings.save(APPSETTINGS_KEY);
        } catch (BackingStoreException ex) {
            ex.printStackTrace();
        }
        
        AppSettings loadedSettings = new AppSettings(false);
        try {
            loadedSettings.load(APPSETTINGS_KEY);
        } catch (BackingStoreException ex) {
            ex.printStackTrace();
        }
        
        assertEqual(loadedSettings.getBoolean("TestBool"), true);
        assertEqual(loadedSettings.getInteger("TestInt"), 123);
        assertEqual(loadedSettings.getString("TestStr"), "HelloWorld");
        assertEqual(loadedSettings.get("TestFloat"), 123.567f);
    }
    
    /**
     * Test Java properties file based AppSettings.
     */
    private static void testFileSettings() {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        
        AppSettings settings = new AppSettings(false);
        settings.putBoolean("TestBool", true);
        settings.putInteger("TestInt", 123);
        settings.putString("TestStr", "HelloWorld");
        settings.putFloat("TestFloat", 123.567f);
        settings.put("TestObj", new Mesh()); // Objects not supported by file settings
        
        try {
            settings.save(baos);
        } catch (IOException ex) {
            ex.printStackTrace();
        }
        
        AppSettings loadedSettings = new AppSettings(false);
        try {
            ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
            loadedSettings.load(bais);
        } catch (IOException ex) {
            ex.printStackTrace();
        }
        
        assertEqual(loadedSettings.getBoolean("TestBool"), true);
        assertEqual(loadedSettings.getInteger("TestInt"), 123);
        assertEqual(loadedSettings.getString("TestStr"), "HelloWorld");
        assertEqual(loadedSettings.get("TestFloat"), 123.567f);
    }
    
    public static void main(String[] args){
        testPreferenceSettings();
        testFileSettings();
        System.out.println("All OK");
    }
}