Add basic test for path.to_string()

test/PathObj.lua

@@ -0,0 +1,24 @@
+package.path = package.path .. ";../lua/SpecSwitcher/path.lua"
+local PathObj = require("path")
+
+local tests = {}
+
+function tests.Always_Fail()
+    assert(false)
+end
+
+function tests.Test_Path_Functionality()
+    local path_1 = "/foo/bar/baz/beef.c"
+    local path_2 = "//foo/bar/baz/beef.c"
+    local path_3 = "///foo/bar/baz/beef.c"
+    local path_4 = "foo/bar/baz/beef.c"
+
+    assert( PathObj:new(path_1):to_string() == path_1 )
+    assert( PathObj:new(path_2):to_string() == path_2 )
+    assert( PathObj:new(path_3):to_string() == path_1 )
+    assert( PathObj:new(path_4):to_string() == path_4 )
+end
+
+for test_functions in pairs(tests) do
+    tests[test_functions]()
+end