Update specs mentioning Unicorn

Updates specs which are do not directly related the Unicorn-related
classes which are planned to be removed.
This is assumed to be a safe change, as it is spec-only, so should be
easily validated via CI.
Split from https://gitlab.com/gitlab-org/gitlab/-/merge_requests/61888.

lib/gitlab/exclusive_lease_helpers.rb

@@ -25,7 +25,7 @@ module Gitlab
     #                                a proc that computes the sleep time given the number of preceding attempts
     #                               (from 1 to retries - 1)
     #
-    # Note: It's basically discouraged to use this method in a unicorn thread,
+    # Note: It's basically discouraged to use this method in a webserver thread,
     #       because this ties up all thread related resources until all `retries` are consumed.
     #       This could potentially eat up all connection pools.
     def in_lock(key, ttl: 1.minute, retries: 10, sleep_sec: 0.01.seconds)

spec/lib/gitlab/gitaly_client_spec.rb

@@ -33,14 +33,6 @@ RSpec.describe Gitlab::GitalyClient do
       it { expect(subject.long_timeout).to eq(6.hours) }
     end
 
-    context 'running in Unicorn' do
-      before do
-        allow(Gitlab::Runtime).to receive(:unicorn?).and_return(true)
-      end
-
-      it { expect(subject.long_timeout).to eq(55) }
-    end
-
     context 'running in Puma' do
       before do
         allow(Gitlab::Runtime).to receive(:puma?).and_return(true)

spec/lib/gitlab/runtime_spec.rb

@@ -99,25 +99,6 @@ RSpec.describe Gitlab::Runtime do
     end
   end
 
-  context "unicorn" do
-    before do
-      stub_const('::Unicorn', Module.new)
-      stub_const('::Unicorn::HttpServer', Class.new)
-      stub_env('ACTION_CABLE_IN_APP', 'false')
-    end
-
-    it_behaves_like "valid runtime", :unicorn, 1
-
-    context "when ActionCable in-app mode is enabled" do
-      before do
-        stub_env('ACTION_CABLE_IN_APP', 'true')
-        stub_env('ACTION_CABLE_WORKER_POOL_SIZE', '3')
-      end
-
-      it_behaves_like "valid runtime", :unicorn, 4
-    end
-  end
-
   context "sidekiq" do
     let(:sidekiq_type) { double('::Sidekiq') }
 

spec/lib/gitlab/usage_data/topology_spec.rb

@@ -95,7 +95,7 @@ RSpec.describe Gitlab::UsageData::Topology do
                   },
                   {
                     name: 'web',
-                    server: 'unicorn'
+                    server: 'puma'
                   }
                 ]
               }
@@ -724,7 +724,7 @@ RSpec.describe Gitlab::UsageData::Topology do
         },
         # instance 2
         {
-          'metric' => { 'instance' => 'instance2:8080', 'job' => 'gitlab-rails', 'server' => 'unicorn' },
+          'metric' => { 'instance' => 'instance2:8080', 'job' => 'gitlab-rails', 'server' => 'puma' },
           'value' => [1000, '1']
         }
       ])

spec/requests/api/terraform/state_spec.rb

@@ -156,15 +156,6 @@ RSpec.describe API::Terraform::State do
           expect(response).to have_gitlab_http_status(:ok)
           expect(Gitlab::Json.parse(response.body)).to be_empty
         end
-
-        context 'on Unicorn', :unicorn do
-          it 'updates the state' do
-            expect { request }.to change { Terraform::State.count }.by(0)
-
-            expect(response).to have_gitlab_http_status(:ok)
-            expect(Gitlab::Json.parse(response.body)).to be_empty
-          end
-        end
       end
 
       context 'without body' do
@@ -200,15 +191,6 @@ RSpec.describe API::Terraform::State do
           expect(response).to have_gitlab_http_status(:ok)
           expect(Gitlab::Json.parse(response.body)).to be_empty
         end
-
-        context 'on Unicorn', :unicorn do
-          it 'creates a new state' do
-            expect { request }.to change { Terraform::State.count }.by(1)
-
-            expect(response).to have_gitlab_http_status(:ok)
-            expect(Gitlab::Json.parse(response.body)).to be_empty
-          end
-        end
       end
 
       context 'without body' do

spec/support/shared_examples/requests/api/conan_packages_shared_examples.rb

@@ -294,16 +294,6 @@ RSpec.shared_examples 'rejects invalid upload_url params' do
   end
 end
 
-RSpec.shared_examples 'successful response when using Unicorn' do
-  context 'on Unicorn', :unicorn do
-    it 'returns successfully' do
-      subject
-
-      expect(response).to have_gitlab_http_status(:ok)
-    end
-  end
-end
-
 RSpec.shared_examples 'recipe snapshot endpoint' do
   subject { get api(url), headers: headers }
 
@@ -372,7 +362,6 @@ RSpec.shared_examples 'recipe upload_urls endpoint' do
 
   it_behaves_like 'rejects invalid recipe'
   it_behaves_like 'rejects invalid upload_url params'
-  it_behaves_like 'successful response when using Unicorn'
 
   it 'returns a set of upload urls for the files requested' do
     subject
@@ -434,7 +423,6 @@ RSpec.shared_examples 'package upload_urls endpoint' do
 
   it_behaves_like 'rejects invalid recipe'
   it_behaves_like 'rejects invalid upload_url params'
-  it_behaves_like 'successful response when using Unicorn'
 
   it 'returns a set of upload urls for the files requested' do
     expected_response = {

spec/support/unicorn.rb

-# frozen_string_literal: true
-
-REQUEST_CLASSES = [
-  ::Grape::Request,
-  ::Rack::Request
-].freeze
-
-def request_body_class
-  return ::Unicorn::TeeInput if defined?(::Unicorn)
-
-  Class.new(StringIO) do
-    def string
-      raise NotImplementedError, '#string is only valid under Puma which uses StringIO, use #read instead'
-    end
-  end
-end
-
-RSpec.configure do |config|
-  config.before(:each, :unicorn) do
-    REQUEST_CLASSES.each do |request_class|
-      allow_any_instance_of(request_class)
-        .to receive(:body).and_wrap_original do |m, *args|
-          request_body_class.new(m.call(*args).read)
-        end
-    end
-  end
-end