SubStringFinderTest

import junit.framework.TestCase;

public class SubStringFinderTest extends TestCase {

    public void testHariWithPrefixes() {
        assertSubStringFinderEquals(true, "hari");

        assertSubStringFinderEquals(true, "xhari");
        assertSubStringFinderEquals(true, "xxhari");
        assertSubStringFinderEquals(true, "xxxhari");
    }

    public void testWrongOrder() {
        assertSubStringFinderEquals(false, "irah");

        assertSubStringFinderEquals(false, "xirah");
        assertSubStringFinderEquals(false, "xxirah");
        assertSubStringFinderEquals(false, "xxxirah");  // We seem to have a problem here.
        assertSubStringFinderEquals(false, "xxxxirah");
        assertSubStringFinderEquals(false, "xxxxxirah");
        assertSubStringFinderEquals(false, "xxxxxxirah");
    }

    public void testSmallSubstrings() {
        assertSubStringFinderEquals(false, "");
        assertSubStringFinderEquals(false, "har");
        assertSubStringFinderEquals(false, "ha");
        assertSubStringFinderEquals(false, "h");
    }

    private void assertSubStringFinderEquals(final boolean expectedResult, final String searchString) {
        assertEquals("Expected this result when searching string <" + searchString + ">;",
                expectedResult, SubStringFinder.searchString(searchString));
    }

}