Add rspec

.rspec

@@ -0,0 +1,2 @@
+--color
+--format=documentation

lib/slack-notify.rb

@@ -16,7 +16,7 @@ def initialize(subdomain, token, options={})
 
     def test
       send_payload(
-        text: "This is a test message!"
+        text: "This is a test message!",
         channel: @channel,
         username: @username
       )

spec/slack-notify/client_spec.rb

@@ -0,0 +1,15 @@
+require "spec_helper"
+
+describe SlackNotify::Client do
+  describe "#initialize" do
+    it "requires subdomain" do
+      expect { described_class.new(nil, nil) }.
+        to raise_error ArgumentError, "Subdomain required"
+    end
+
+    it "requires token" do
+      expect { described_class.new("foobar", nil) }.
+        to raise_error ArgumentError, "Token required"
+    end
+  end
+end

spec/spec_helper.rb

@@ -0,0 +1,17 @@
+require "simplecov"
+SimpleCov.start
+
+$:.unshift File.expand_path("../..", __FILE__)
+
+require "webmock"
+require "webmock/rspec"
+require "slack-notify"
+
+def fixture_path(filename=nil)
+  path = File.expand_path("../fixtures", __FILE__)
+  filename.nil? ? path : File.join(path, filename)
+end
+
+def fixture(file)
+  File.read(File.join(fixture_path, file))
+end