Unit test for https://github.com/SpringSource/spring-hateoas/issues/40

SpringHateoasLinkTest.java

import static org.junit.Assert.assertEquals;
import static org.springframework.hateoas.mvc.BasicLinkBuilder.linkToCurrentMapping;

import org.junit.Before;
import org.junit.Test;
import org.springframework.hateoas.Link;
import org.springframework.mock.web.MockHttpServletRequest;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;


public class SpringHateoasLinkTest {

    @Before
    public void setup() {
        RequestContextHolder.setRequestAttributes(new ServletRequestAttributes(new MockHttpServletRequest()));
    }
    
    @Test
    public void specialCharactersInPathShouldNotBeDoubleEncoded() {
        Link l = linkToCurrentMapping().slash("first").slash("sec%ond").slash("thi%rd").slash("fourth").withSelfRel();
        assertEquals("http://localhost/first/sec%25ond/thi%25rd/fourth", l.getHref());
    }
    
    @Test
    public void slashInPathPathShouldBeEncoded() {
        Link l = linkToCurrentMapping().slash("first").slash("sec/ond").slash("third").withSelfRel();
        assertEquals("http://localhost/first/sec%2Fond/third/fourth", l.getHref());
    }
}