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package net.sourceforge.cruisecontrol.sourcecontrols;

import junit.framework.TestCase;
import net.sourceforge.cruisecontrol.CruiseControlException;
import net.sourceforge.cruisecontrol.Modification;

import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Collections;
import java.util.Date;
import java.util.List;


/**
 * Things that could/should be improved:
 * <ul>
 * <li> test using a server lying in a different timezone. Right now it's not handled.
 * </ul>
 * @author <a href="mailto:jerome@coffeebreaks.org">Jerome Lacoste</a>
 */
public class SnapshotCMTest extends TestCase {

    private Date parseSnaphotOutDateFormat(String dateString) throws ParseException {
        return new SimpleDateFormat(SnapshotCM.OUT_DATE_FORMAT).parse(dateString);
    }

    public void testValidate() {
        SnapshotCM snaphotCM = new SnapshotCM();

        try {
            snaphotCM.validate();
            fail("SnapshotCM should throw exceptions when required fields are not set.");
        } catch (CruiseControlException e) {
        }

        snaphotCM.setSourcePath("thePath");

        try {
            snaphotCM.validate();
        } catch (CruiseControlException e) {
            fail("SnapshotCM should not throw exceptions when required fields are set.");
        }

        // test validity of the path format?
    }

    private InputStream loadTestLog(String name) {
        InputStream testStream = getClass().getResourceAsStream(name);
        assertNotNull("failed to load resource " + name + " in class " + getClass().getName(), testStream);
        return testStream;
    }

    public void testParseStream() throws IOException, ParseException {
        SnapshotCM snaphotCM = new SnapshotCM();

        BufferedInputStream input =
                new BufferedInputStream(loadTestLog("snapshotcm-history.txt"));
        final List<Modification> modifications = snaphotCM.parseStream(input);
        input.close();
        Collections.sort(modifications);

        assertEquals("Should have returned 3 modifications.",
                3,
                modifications.size());

        Modification mod1 = new Modification("Content");
        Modification.ModifiedFile mod1file = mod1.createModifiedFile("build.xml", "/xxx/yyy/cccc/dddd");
        mod1file.action = "modified";
        mod1.revision = "18";
        mod1.modifiedTime = parseSnaphotOutDateFormat("2004/01/06 15:49:38");
        mod1.userName = "pacon";
        mod1.comment =
                "Corrected capitalization for all parameters";

        Modification mod2 = new Modification("Content");
        Modification.ModifiedFile mod2file = mod2.createModifiedFile("build.xml", "/xxx/yyy/cccc/dddd");
        mod2file.action = "modified";
        mod2.revision = "19";
        mod2.modifiedTime = parseSnaphotOutDateFormat("2004/01/06 17:00:40");
        mod2.userName = "pacon";
        mod2.comment = "Removed -D param from SnapshotCM wco and wci commands.";

        Modification mod3 = new Modification("Content");
        Modification.ModifiedFile mod3file =
            mod3.createModifiedFile("wallawalla", "/xxx/yyy/zzzz/scripts/sbin/init.d/");
        mod3file.action = "modified";
        mod3.revision = "8";
        mod3.modifiedTime = parseSnaphotOutDateFormat("2004/01/07 09:51:34");
        mod3.userName = "pacon";
        mod3.comment = "remove obsolete comment";

        assertEquals(mod1, modifications.get(0));
        assertEquals(mod2, modifications.get(1));
        assertEquals(mod3, modifications.get(2));
    }
}