DBConfigUtilsTest.java example

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ovirt-engine-master
package org.ovirt.engine.core.dal.dbbroker.generic;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;

import java.lang.reflect.Field;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.ovirt.engine.core.common.config.Config;
import org.ovirt.engine.core.common.config.ConfigCommon;
import org.ovirt.engine.core.common.config.ConfigValues;
import org.ovirt.engine.core.common.config.OptionBehaviour;
import org.ovirt.engine.core.common.config.OptionBehaviourAttribute;
import org.ovirt.engine.core.common.config.TypeConverterAttribute;
import org.ovirt.engine.core.dao.BaseDaoTestCase;

public class DBConfigUtilsTest extends BaseDaoTestCase {
    private DBConfigUtils config;

    @Override
    @Before
    public void setUp() throws Exception {
        super.setUp();
        config = new DBConfigUtils();
        Config.setConfigUtils(config);
    }

    @After
    public void tearDown() {
        Config.setConfigUtils(null);
    }

    @Test
    public void testDefaultValues() throws Exception {
        ConfigValues[] values = ConfigValues.values();

        for (ConfigValues curConfig : values) {
            if (curConfig == ConfigValues.Invalid) {
                continue;
            }

            Field configField = ConfigValues.class.getField(curConfig.name());

            OptionBehaviourAttribute behaviourAttr = configField.getAnnotation(OptionBehaviourAttribute.class);
            if (behaviourAttr != null && behaviourAttr.behaviour() == OptionBehaviour.Password) {
                continue; // no cert available for password decrypt
            }

            TypeConverterAttribute typeAttr = configField.getAnnotation(TypeConverterAttribute.class);
            assertNotNull("The following field is missing the " + TypeConverterAttribute.class.getSimpleName()
                    + " annotation: " + curConfig.name(), typeAttr);
            Class<?> c = typeAttr.value();

            Object obj = config.getValue(curConfig, ConfigCommon.defaultConfigurationVersion);

            assertNotNull("null return for " + curConfig.name(), obj);
            assertTrue(
                    curConfig.name() + " is a " + obj.getClass().getName() + " but should be a " + c.getName(),
                    c.isInstance(obj));
        }
    }

    @Test
    public void testGetValue() {
        // Verify that values for 3.6 are from DB (since the entries are present in fixtures.xml)
        // and for 4.0, it's the default value from annotation in ConfigValues.
        // 3.6 -> false, 4.0 -> true
        assertFalse(Config.getValue(ConfigValues.SriovHotPlugSupported, "3.6"));
        assertTrue(Config.getValue(ConfigValues.SriovHotPlugSupported, "4.0"));
    }

    @Test
    public void testValueDependent() {
        assertEquals
                (Config.<String> getValue(ConfigValues.PostgresPagingType), Config.getValue(ConfigValues.DBPagingType));
    }
}