Path.relativeTo

import dshould;
Path("foo").relativeTo(std.file.getcwd).toString().should.equal("foo");

version(Posix) {
    auto path1 = Path("/foo/root/child/subchild");
    auto root1 = Path("/foo/root");
    auto root2 = Path("/moo/root");
    auto rpath1 = path1.relativeTo(root1);

    rpath1.toString.should.equal("child/subchild");
    root2.join(rpath1).toString.should.equal("/moo/root/child/subchild");
    path1.relativeTo(root2).toString.should.equal("../../foo/root/child/subchild");

    // Base path must be absolute, so this should throw error
    Path("~/my/path/1").relativeTo("~/my").should.throwA!PathException;
}