added media_spec.rb

spec/api/media_spec.rb

+require "spec_helper"
+
+describe WeixinAuthorize::Api::Media do
+
+  let(:image_path) do
+    "#{File.dirname(__FILE__)}/medias/dlogo.png"
+  end
+
+  let(:image_file) do
+    File.new(image_path)
+  end
+
+  it "can upload a image" do
+    response = $client.upload_media(image_file, "image")
+    expect(response.keys).to eq(["type", "media_id", "created_at"])
+  end
+
+  it "#download_media" do
+    image = $client.upload_media(image_file, "image")
+    media_id = image["media_id"]
+    response = $client.download_media(media_id)
+    binding.pry
+    expect(response.raw_headers.keys).to eq(["server",
+                                             "date",
+                                             "content-type",
+                                             "connection",
+                                             "content-disposition",
+                                             "cache-control",
+                                             "content-length"])
+  end
+
+end