Implements delete project checkout key

* Delete a project checkout key
* Test deletion of key and if key is not found

lib/circleci/project.rb

@@ -71,6 +71,19 @@ def self.clear_cache username, project
       CircleCi.http.delete "/project/#{username}/#{project}/build-cache"
     end
 
+    ##
+    #
+    # Delete a checkout key for a project
+    #
+    # @param username     [String] - User or org name who owns project
+    # @param project      [String] - Name of project
+    # @param fingerprint  [String] - Fingerprint of a checkout key
+    # @return             [CircleCi::Response] - Response object
+
+    def self.delete_checkout_key username, project, fingerprint
+      CircleCi.http.delete "/project/#{username}/#{project}/checkout-key/#{fingerprint}"
+    end
+
     ##
     #
     # Enable a project in CircleCI. Causes a CircleCI SSH key to be added to
@@ -103,7 +116,7 @@ def self.follow username, project
     # @param username     [String] - User or org name who owns project
     # @param project      [String] - Name of project
     # @param fingerprint  [String] - Fingerprint of a checkout key
-    # @return         [CircleCi::Response] - Response object
+    # @return             [CircleCi::Response] - Response object
 
     def self.get_checkout_key username, project, fingerprint
       CircleCi.http.get "/project/#{username}/#{project}/checkout-key/#{fingerprint}"

spec/circleci/project_spec.rb

@@ -102,6 +102,43 @@
 
   end
 
+  describe 'delete_checkout_key' do
+
+    context 'successfully', vcr: { cassette_name: 'project/delete_checkout_key/successfully', record: :none } do
+
+      let(:res) { CircleCi::Project.delete_checkout_key 'mtchavez', 'circleci', test_delete_checkout_key_fingerprint }
+
+      it 'returns a response object' do
+        res.should be_an_instance_of(CircleCi::Response)
+        res.should be_success
+      end
+
+      it 'returns message' do
+        res.body.should be_an_instance_of(Hash)
+        res.body['message'].should eql 'ok'
+      end
+
+    end
+
+    context 'unsuccessfully', vcr: { cassette_name: 'project/delete_checkout_key/unsuccessfully', record: :none } do
+
+      let(:res) { CircleCi::Project.delete_checkout_key 'mtchavez', 'circleci', 'asdf-bogus' }
+      let(:message) { 'checkout key not found' }
+
+      it 'returns a response object' do
+        res.should be_an_instance_of(CircleCi::Response)
+        res.should_not be_success
+      end
+
+      it 'returns an error message' do
+        res.body.should be_an_instance_of(Hash)
+        res.body['message'].should eql message
+      end
+
+    end
+
+  end
+
   describe 'get_checkout_key' do
 
     context 'successfully', vcr: { cassette_name: 'project/get_checkout_key/successfully', record: :none } do
@@ -113,7 +150,7 @@
         res.should be_success
       end
 
-      it 'returns created key' do
+      it 'returns key' do
         res.body.should be_an_instance_of(Hash)
         res.body['public_key'].should match(/^ssh-rsa/)
         res.body['type'].should eql 'deploy-key'

spec/support/checkout_keys.rb

@@ -1,3 +1,7 @@
 def test_checkout_key_fingerprint
   '96:08:ec:3c:fd:df:1f:6a:09:ad:e0:0f:83:ae:17:0a'
 end
+
+def test_delete_checkout_key_fingerprint
+  '58:8a:ff:01:b3:e5:81:69:7a:70:2d:fc:2c:db:94:48'
+end