Fix RSpec issues

spec/integration/issue_spec.rb

@@ -50,8 +50,10 @@
         stub_request(:get, "#{site_url}/jira/rest/api/2/search?expand=transitions.fields&maxResults=1000&startAt=11")
           .to_return(status: 200, body: get_mock_response('empty_issues.json'))
       end
+
       it_behaves_like 'a resource with a collection GET endpoint'
     end
+
     it_behaves_like 'a resource with a DELETE endpoint'
     it_behaves_like 'a resource with a POST endpoint'
     it_behaves_like 'a resource with a PUT endpoint'

spec/integration/rapidview_spec.rb

@@ -30,6 +30,7 @@
         stub_request(:get, "#{site_url}/jira/rest/greenhopper/1.0/rapidview")
           .to_return(status: 200, body: get_mock_response('rapidview.json'))
       end
+
       it_behaves_like 'a resource with a collection GET endpoint'
     end
 

spec/jira/base_spec.rb

@@ -44,6 +44,7 @@ class JIRA::Resource::HasManyExample < JIRA::Base # :nodoc:
       it 'responds to client' do
         expect(decorated.respond_to?(:client)).to eq(true)
       end
+
       it 'does not raise an error' do
         expect do
           decorated.respond_to?(:client)

spec/jira/client_spec.rb

@@ -28,7 +28,7 @@
       expect(subject).to receive(:merge_default_headers).exactly(3).times.with({})
 
       # response for merging headers for http methods with body
-      expect(subject).to receive(:merge_default_headers).exactly(2).times.with(content_type_header)
+      expect(subject).to receive(:merge_default_headers).twice.with(content_type_header)
 
       %i[delete get head].each { |method| subject.send(method, '/path', {}) }
       %i[post put].each { |method| subject.send(method, '/path', '', content_type_header) }

spec/jira/resource/attachment_spec.rb

@@ -131,6 +131,7 @@
         expect(attachment.mimeType).to eq file_mime_type
         expect(attachment.size).to eq file_size
       end
+
       context 'when using custom client headers' do
         subject(:bearer_attachment) do
           described_class.new(

spec/jira/resource/board_spec.rb

@@ -220,6 +220,6 @@ class JIRAResourceDelegation < SimpleDelegator # :nodoc:
     allow(board).to receive(:id).and_return(84)
     expect(client).to receive(:get).with('/rest/agile/1.0/board/84/configuration').and_return(response)
     expect(client).to receive(:BoardConfiguration).and_return(JIRA::Resource::BoardConfigurationFactory.new(client))
-    expect(board.configuration).not_to be(nil)
+    expect(board.configuration).not_to be_nil
   end
 end

spec/jira/resource/issue_spec.rb

@@ -23,9 +23,11 @@ class JIRAResourceDelegation < SimpleDelegator # :nodoc:
         issue = described_class.find(client, 101)
         @decorated = JIRAResourceDelegation.new(issue)
       end
+
       it 'responds to key' do
         expect(@decorated.respond_to?(:key)).to eq(true)
       end
+
       it 'does not raise an error' do
         expect do
           @issue.respond_to?(:project)