From fd25c046d0cae092d3a353b23858f2790ffbc1f2 Mon Sep 17 00:00:00 2001
From: Gawin <git@gaw.in>
Date: Thu, 21 Sep 2017 14:43:44 +0200
Subject: [PATCH] Added Rate Limit error

---
 lib/faraday/raise_http_exception.rb |  3 ++-
 lib/postmates/error.rb              |  3 ++-
 spec/error_spec.rb                  | 19 ++++++++++++++++++-
 spec/fixtures/rate_limit.json       |  5 +++++
 4 files changed, 27 insertions(+), 3 deletions(-)
 create mode 100644 spec/fixtures/rate_limit.json

diff --git a/lib/faraday/raise_http_exception.rb b/lib/faraday/raise_http_exception.rb
index c24e5af..dc1e1bd 100644
--- a/lib/faraday/raise_http_exception.rb
+++ b/lib/faraday/raise_http_exception.rb
@@ -14,6 +14,7 @@ def call(env)
         when 401 ; raise Postmates::Unauthorized,        msg
         when 403 ; raise Postmates::Forbidden,           msg
         when 404 ; raise Postmates::NotFound,            msg
+        when 429 ; raise Postmates::RateLimit,           msg
         when 500 ; raise Postmates::InternalServerError, msg
         when 503 ; raise Postmates::ServiceUnavailable,  msg
         end
@@ -25,4 +26,4 @@ def initialize(app)
       @parser = nil
     end
   end
-end
\ No newline at end of file
+end
diff --git a/lib/postmates/error.rb b/lib/postmates/error.rb
index 72bd3ce..9c740c6 100644
--- a/lib/postmates/error.rb
+++ b/lib/postmates/error.rb
@@ -4,6 +4,7 @@ class BadRequest          < Error; end # 400
   class Unauthorized        < Error; end # 401
   class Forbidden           < Error; end # 403
   class NotFound            < Error; end # 404
+  class RateLimit           < Error; end # 429
   class InternalServerError < Error; end # 500
   class ServiceUnavailable  < Error; end # 503
-end
\ No newline at end of file
+end
diff --git a/spec/error_spec.rb b/spec/error_spec.rb
index 7b4bcb8..3a24d85 100644
--- a/spec/error_spec.rb
+++ b/spec/error_spec.rb
@@ -55,6 +55,23 @@
       end
     end
 
+    describe 'rate limit reached' do
+      before do
+        50.times do
+          stub_post(path_to('deliveries'),
+                    params.merge(response_code: 400,
+                                 returns: 'invalid_params.json'))
+        end
+        stub_get(path_to('deliveries'),
+                 response_code: 429, returns: 'rate_limit.json')
+      end
+
+      it 'raises Postmates::RateLimit' do
+        expect { client.list ) }
+          .to raise_error Postmates::RateLimit
+      end
+    end
+
     describe 'when there is a problem processing the request' do
       before do
         stub_get(path_to('deliveries'),
@@ -79,4 +96,4 @@
       end
     end
   end
-end
\ No newline at end of file
+end
diff --git a/spec/fixtures/rate_limit.json b/spec/fixtures/rate_limit.json
new file mode 100644
index 0000000..4374059
--- /dev/null
+++ b/spec/fixtures/rate_limit.json
@@ -0,0 +1,5 @@
+{
+  "kind": "error",
+  "code": "rate_limit_exceeded",
+  "message": "You are attempting to exceed our rate limit"
+}