diff --git a/spec/parser_spec.lua b/spec/parser_spec.lua
new file mode 100644
index 0000000..e37b83f
--- /dev/null
+++ b/spec/parser_spec.lua
@@ -0,0 +1,45 @@
+require 'busted.runner'()
+
+local Parser = require "router-tree.parser"
+
+local function parse(parser)
+  local tokens = {}
+  local token = parser:next()
+  while token do
+    table.insert(tokens, token)
+    token = parser:next()
+  end
+  return tokens
+end
+
+describe("parser", function()
+  it("sanity", function()
+    local tests = {
+      {
+        path = "/info/:user/project/:sub",
+        tokens = { "/info/", ":user", "/project/", ":sub" },
+      },
+      {
+        path = "/api/v1/pay/*",
+        tokens = { "/api/v1/pay/", "*" },
+      },
+      {
+        path = "/api/v1/pay/*path",
+        tokens = { "/api/v1/pay/", "*path" },
+      },
+      {
+        path = "/api/v1/users/:id/*",
+        tokens = { "/api/v1/users/", ":id", "/", "*" },
+      },
+      {
+        path = "/api/v1/users/:id/*path",
+        tokens = { "/api/v1/users/", ":id", "/", "*path" },
+      }
+    }
+
+    for _, test in ipairs(tests) do
+      local parser = Parser.new(test.path)
+      assert(test.tokens, parse(parser))
+    end
+  end)
+end)