Use more accurate way of testing GitHub Pull Request service

lib/cc/service/response_check.rb

@@ -1,9 +1,10 @@
 class CC::Service
   class HTTPError < StandardError
-    attr_reader :response_body
+    attr_reader :response_body, :status
 
-    def initialize(message, response_body)
-      @response_body = response_body
+    def initialize(message, env)
+      @response_body = env[:body]
+      @status        = env[:status]
 
       super(message)
     end
@@ -17,7 +18,7 @@ def on_complete(env)
         message = error_message(env) ||
           "API request unsuccessful (#{env[:status]})"
 
-        raise HTTPError.new(message, env[:body])
+        raise HTTPError.new(message, env)
       end
     end
 

lib/cc/services/github_pull_requests.rb

@@ -26,9 +26,14 @@ class Config < CC::Service::Config
   def receive_test
     setup_http
 
-    http_get("#{BASE_URL}")
+    http_post(base_status_url("0" * 40), "{}")
 
-    { ok: true, message: "OAuth token is valid" }
+  rescue HTTPError => ex
+    if ex.status == 422 # response message: "No commit found for SHA"
+      { ok: true, message: "OAuth token is valid" }
+    else ex.status == 401 # response message: "Bad credentials"
+      { ok: false, message: ex.message }
+    end
   rescue => ex
     { ok: false, message: ex.message }
   end
@@ -84,6 +89,10 @@ def setup_http
   end
 
   def status_url
+    base_status_url(commit_sha)
+  end
+
+  def base_status_url(commit_sha)
     "#{BASE_URL}/repos/#{github_slug}/statuses/#{commit_sha}"
   end
 

service_test.rb

@@ -11,6 +11,7 @@
 # Example:
 #
 #   $ SLACK_WEBHOOK_URL="http://..." bundle exec ruby service_test.rb
+#   $ GITHUBPULLREQUESTS_OAUTH_TOKEN=06083a4a060d358ca709939b1f00645777661c44 bundle exec ruby service_test.rb
 #
 # Other Environment variables used:
 #
@@ -36,7 +37,7 @@ def initialize(klass, *params)
     @params = params
   end
 
-  def test
+  def test(payload = {})
     config = {}
 
     puts "-"*80
@@ -55,7 +56,7 @@ def test
     puts "  -> #{config.inspect}"
     print "  => "
 
-    test_service(@klass, config)
+    test_service(@klass, config, payload)
   end
 
 private
@@ -64,10 +65,10 @@ def to_env_var(param)
     "#{@klass.to_s.split("::").last}_#{param}".upcase
   end
 
-  def test_service(klass, config)
+  def test_service(klass, config, payload)
     repo_name = ENV["REPO_NAME"] || "App"
 
-    service = klass.new(config, name: :test, repo_name: repo_name)
+    service = klass.new(config, { name: :test, repo_name: repo_name }.merge(payload))
 
     CC::Service::Invocation.new(service) do |i|
       i.wrap(WithResponseLogging)
@@ -79,3 +80,4 @@ def test_service(klass, config)
 ServiceTest.new(CC::Service::Flowdock, :api_token).test
 ServiceTest.new(CC::Service::Jira, :username, :password, :domain, :project_id).test
 ServiceTest.new(CC::Service::Asana, :api_key, :workspace_id, :project_id).test
+ServiceTest.new(CC::Service::GitHubPullRequests, :oauth_token).test({ github_slug: "codeclimate/codeclimate" })

test/github_pull_requests_test.rb

@@ -27,6 +27,18 @@ def test_pull_request_status_success
     })
   end
 
+  def test_pull_request_test_success
+    @stubs.post("/repos/pbrisbin/foo/statuses/#{"0" * 40}") { |env| [422, {}, ""] }
+
+    assert receive_test({}, { github_slug: "pbrisbin/foo" })[:ok], "Expected test of pull request to be true"
+  end
+
+  def test_pull_request_test_failure
+    @stubs.post("/repos/pbrisbin/foo/statuses/#{"0" * 40}") { |env| [401, {}, ""] }
+
+    assert !receive_test({}, { github_slug: "pbrisbin/foo" })[:ok], "Expected failed test of pull request"
+  end
+
   def test_pull_request_comment
     stub_existing_comments("pbrisbin/foo", 1, %w[Hey Yo])
 
@@ -92,4 +104,12 @@ def receive_pull_request(config, event_data)
     )
   end
 
+  def receive_test(config, event_data)
+    receive(
+      CC::Service::GitHubPullRequests,
+      { oauth_token: "123" }.merge(config),
+      { name: "test" }.merge(event_data)
+    )
+  end
+
 end