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package net.sourceforge.cruisecontrol.dashboard;

import junit.framework.TestCase;

import java.io.InputStream;
import java.io.FileInputStream;
import java.util.zip.GZIPInputStream;

import net.sourceforge.cruisecontrol.dashboard.testhelpers.DataUtils;

public class LogFileTest extends TestCase {
    public void testShouldReturnFileInputStreamWhenUnzippedLogFile() throws Exception {
        InputStream in = DataUtils.getPassingBuildLbuildAsFile().getInputStream();
        assertTrue("Should be a FileInputStream.", in instanceof FileInputStream);
    }

    public void testShouldReturnGZipInputStreamWhenZippedLogFile() throws Exception {
        InputStream in = DataUtils.getZippedBuildAsFile().getInputStream();
        assertTrue("Should be a GZIPInputStream.", in instanceof GZIPInputStream);
    }

    public void testShouldComputeBuildDateTimeFromPassedLogFileName() throws Exception {
        LogFile logFile = DataUtils.getPassingBuildLbuildAsFile();
        assertEquals("2005-12-09 12:21.03", logFile.getDateTime());
    }

    public void testShouldComputeBuildDateTimeFromFailedLogFileName() throws Exception {
        LogFile logFile = DataUtils.getFailedBuildLbuildAsFile();
        assertEquals("2005-12-09 12:21.04", logFile.getDateTime());
    }

    public void testShouldThrowExceptionWhenInvalidLogFileName() throws Exception {
        assertInvalidFileName("12320050312121003L1.xml");
        assertInvalidFileName("12320050312121003.xml");
        assertInvalidFileName("log200503121210.xml");
        assertInvalidFileName("log.xml");
        assertInvalidFileName("logL1.xml");
    }

    public void testShouldComputeLabelFromPassedLogFileName() throws Exception {
        LogFile logFile = DataUtils.getPassingBuildLbuildAsFile();
        assertEquals("build.489", logFile.getLabel());
        LogFile zippedLogFile = new LogFile(DataUtils.PASSING_BUILD_LBUILD_0_XML + ".gz");
        assertEquals("build.489", zippedLogFile.getLabel());
    }

    public void testShouldHaveEmptyLabelFromFailedLogFileName() throws Exception {
        LogFile logFile = DataUtils.getFailedBuildLbuildAsFile();
        assertEquals("", logFile.getLabel());
        LogFile zippedLogFile = new LogFile(DataUtils.FAILING_BUILD_XML + ".gz");
        assertEquals("", zippedLogFile.getLabel());
    }

    private void assertInvalidFileName(String invalidLogFileName) {
        try {
            new LogFile(invalidLogFileName);
            fail("Should not be able to create invalid log file " + invalidLogFileName);
        } catch (IllegalArgumentException e) {
            assertEquals("Invalid logfile name: " + invalidLogFileName, e.getMessage());
        }
    }
}