implement Path::join()

src/lib/src/Path.cc

@@ -22,8 +22,10 @@ namespace jes
 
     Path Path::join(const Path & other)
     {
-        // TODO
-        return "";
+        if (m_path.size() > 0 && *m_path.rbegin() == '/')
+            return Path(m_path + other.m_path);
+        else
+            return Path(m_path + '/' + other.m_path);
     }
 
     void Path::clean()

test/src/test_Path.cc

@@ -21,3 +21,9 @@ TEST(PathTest, convert_backslashes_to_forward_slashes)
     Path p("C:\\foo\\bar.txt");
     EXPECT_EQ("C:/foo/bar.txt", p.to_s());
 }
+
+TEST(PathTest, joins_two_paths_together)
+{
+    EXPECT_EQ("C:/foo/../baz", Path("C:\\foo").join("../baz").to_s());
+    EXPECT_EQ("/xyz/f.txt", Path("/xyz/").join("f.txt").to_s());
+}