StringsTest.java

/**
 * OpenSpotLight - Open Source IT Governance Platform
 *
 * Copyright (c) 2009, CARAVELATECH CONSULTORIA E TECNOLOGIA EM INFORMATICA LTDA
 * or third-party contributors as indicated by the @author tags or express
 * copyright attribution statements applied by the authors.  All third-party
 * contributions are distributed under license by CARAVELATECH CONSULTORIA E
 * TECNOLOGIA EM INFORMATICA LTDA.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *
 * See the GNU Lesser General Public License  for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 *
 ***********************************************************************
 * OpenSpotLight - Plataforma de Governança de TI de Código Aberto
 *
 * Direitos Autorais Reservados (c) 2009, CARAVELATECH CONSULTORIA E TECNOLOGIA
 * EM INFORMATICA LTDA ou como contribuidores terceiros indicados pela etiqueta
 * @author ou por expressa atribuição de direito autoral declarada e atribuída pelo autor.
 * Todas as contribuições de terceiros estão distribuídas sob licença da
 * CARAVELATECH CONSULTORIA E TECNOLOGIA EM INFORMATICA LTDA.
 *
 * Este programa é software livre; você pode redistribuí-lo e/ou modificá-lo sob os
 * termos da Licença Pública Geral Menor do GNU conforme publicada pela Free Software
 * Foundation.
 *
 * Este programa é distribuído na expectativa de que seja útil, porém, SEM NENHUMA
 * GARANTIA; nem mesmo a garantia implícita de COMERCIABILIDADE OU ADEQUAÇÃO A UMA
 * FINALIDADE ESPECÍFICA. Consulte a Licença Pública Geral Menor do GNU para mais detalhes.
 *
 * Você deve ter recebido uma cópia da Licença Pública Geral Menor do GNU junto com este
 * programa; se não, escreva para:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */

package org.openspotlight.common.util.test;

import static org.hamcrest.core.Is.is;
import static org.junit.Assert.assertThat;
import static org.openspotlight.common.util.Strings.firstLetterToLowerCase;
import static org.openspotlight.common.util.Strings.firstLetterToUpperCase;
import static org.openspotlight.common.util.Strings.removeBegginingFrom;
import static org.openspotlight.common.util.Strings.replaceLast;

import org.junit.Test;
import org.openspotlight.common.util.Strings;

/**
 * Test class for {@link Strings}
 * 
 * @author Luiz Fernando Teston - feu.teston@caravelatech.com
 */
@SuppressWarnings("all")
public class StringsTest {

    @Test
    public void shouldConcatenatePathElements() {
        assertThat(Strings.concatPaths("test/", "/test", "test/", "te/st", "/test", null, "lala"),
                   is("test/test/test/te/st/test/lala"));
        assertThat(Strings.concatPaths("test"), is("test"));
    }

    @Test
    public void shouldConvertFirstCharToLowerCaseWhenLengthIsMoreThanOneCharacter() {
        assertThat(firstLetterToLowerCase("BiggerCamelCasedWord"), is("biggerCamelCasedWord"));
    }

    @Test
    public void shouldConvertFirstCharToLowerCaseWhenLengthIsOneCharacter() {
        assertThat(firstLetterToLowerCase("I"), is("i"));
    }

    @Test
    public void shouldConvertFirstCharToUpperCaseWhenLengthIsMoreThanOneCharacter() {
        assertThat(firstLetterToUpperCase("biggerCamelCasedWord"), is("BiggerCamelCasedWord"));
    }

    @Test
    public void shouldConvertFirstCharToUpperCaseWhenLengthIsOneCharacter() {
        assertThat(firstLetterToUpperCase("i"), is("I"));
    }

    @Test
    public void shouldDoNothingWhenLowerLengthIsZero() {
        assertThat(firstLetterToLowerCase(""), is(""));
    }

    @Test
    public void shouldDoNothingWhenUpperLengthIsZero() {
        assertThat(firstLetterToUpperCase(""), is(""));
    }

    @Test(expected = IllegalArgumentException.class)
    public void shouldNotReplaceLastStringWhenCalledWithEmptyString()
        throws Exception {
        replaceLast("", "Thing", "Stuff");
    }

    @Test(expected = IllegalArgumentException.class)
    public void shouldNotReplaceLastStringWhenCalledWithEmptyToReplaceString()
        throws Exception {
        replaceLast("none", "", "Stuff");
    }

    @Test
    public void shouldRemoveStartingString() {
        assertThat(removeBegginingFrom("beggining", "beggining will be removed"), is(" will be removed"));
    }

    @Test
    public void shouldReplaceLastString()
        throws Exception {
        assertThat(replaceLast("someThingAbout", "Thing", "Stuff"), is("someStuffAbout"));
    }

    @Test(expected = IllegalStateException.class)
    public void shouldThrowErrorWhenGettingBiggerBeginning() {
        removeBegginingFrom("acb", "b");
    }

    @Test(expected = IllegalStateException.class)
    public void shouldThrowErrorWhenGettingInvalidString() {
        removeBegginingFrom("a", "b");
    }

    @Test(expected = IllegalArgumentException.class)
    public void shouldThrowErrorWhenGettingNulls() {
        removeBegginingFrom(null, "b");
    }

    @Test(expected = IllegalArgumentException.class)
    public void shouldThrowExceptionWhenLowerTheFirstLetterIsWithInvalidParameter() {
        firstLetterToLowerCase(null);
    }

    @Test(expected = IllegalArgumentException.class)
    public void shouldThrowExceptionWhenUpperTheFirstLetterIsWithInvalidParameter() {
        firstLetterToUpperCase(null);
    }

}