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package net.sourceforge.cruisecontrol.bootstrappers;

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

import java.io.File;
import java.io.IOException;

/**
 * @author <a href="jerome@coffeebreaks.org">Jerome Lacoste</a>
 * @see <a href="http://www.selenic.com/mercurial">Mercurial web site</a>
 */
public class MercurialBootstrapperTest extends TestCase {

    private MercurialBootstrapper bootStrapper;
    private File tempFile;

    protected void setUp() throws IOException {
        bootStrapper = new MercurialBootstrapper();
        tempFile = File.createTempFile("temp", "txt");
        tempFile.deleteOnExit();
    }

    public void testValidateFailWhenNoAttributesSet() throws IOException {
        try {
            bootStrapper.validate();
            fail("should throw an exception when no attributes are set");
        } catch (CruiseControlException e) {
        }
    }
    
    public void testValidateFailWhenInvalidLocalWorkingDirectory() throws IOException {
        bootStrapper.setLocalWorkingCopy("invalid directory");
        try {
            bootStrapper.validate();
            fail("should throw an exception when an invalid 'localWorkingCopy' attribute is set");
        } catch (CruiseControlException e) {
            // expected
        }
    }

    public void testValidateOKWhenValidLocalWorkingDirectory() throws IOException {
        bootStrapper.setLocalWorkingCopy(tempFile.getParent());
        try {
            bootStrapper.validate();
        } catch (CruiseControlException e) {
            fail(
                "should not throw an exception when at least a valid 'localWorkingCopy' "
                    + "attribute is set");
        }
    }

    public void testValidateFailWhenLocalWorkingDirIsAFile() throws IOException {
        bootStrapper.setLocalWorkingCopy(tempFile.getAbsolutePath());
        try {
            bootStrapper.validate();
            fail(
                "should throw an exception when 'localWorkingCopy' is a file instead of a "
                    + "directory.");
        } catch (CruiseControlException e) {
            // expected
        }
    }

    public void testBuildUpdateCommand() throws CruiseControlException {
        String tempDir = System.getProperty("java.io.tmpdir");

        bootStrapper.setLocalWorkingCopy(tempDir);
        String command = bootStrapper.buildPullUpdateCommand().toString();

        assertEquals("hg pull -u", command);
    }
}