diff --git a/spec/agent_spec.cr b/spec/agent_spec.cr
new file mode 100644
index 0000000..907ed56
--- /dev/null
+++ b/spec/agent_spec.cr
@@ -0,0 +1,32 @@
+require "./spec_helper"
+WebMock.stub(:get, "html_example.com").to_return(body: 
+<<-BODY
+<html>
+  <meta>
+  <head>
+    <title>page_title</title>
+  </head>
+  <body>
+    <form action="post_path" method="post" name="sample_form">
+      <input type="text" name="name">
+      <input type="text" name="email">
+      <input type="submit" value="">
+    </form>
+  </body>
+</html>
+BODY
+)
+WebMock.stub(:post, "http://html_example.com/post_path").
+         with(body: "name=foo&email=bar", headers: {"Content-Type" => "application/x-www-form-urlencoded"}).
+         to_return(body: "success")
+
+describe "Mechanize Agent test" do
+  agent = Mechanize.new
+  page = agent.get("http://html_example.com/")
+  form = page.forms[0]
+  form.field_with("name").value = "foo"
+  form.field_with("email").value = "bar"
+  page = agent.submit(form)
+  page.not_nil!.code.should eq 200
+  page.not_nil!.body.should eq "success"
+end
