clean up linter issues

Gemfile

@@ -6,13 +6,13 @@ gemspec
 # Run all pre-commit hooks via Overcommit during CI runs
 gem 'overcommit', '0.53.0'
 
+# Pin redis-rb version since v5 introduced breaking changes
+gem 'redis', '>= 5.0.0'
 # Pin tool versions (which are executed by Overcommit) for CI builds
 gem 'rubocop', '1.44.1'
 
 gem 'simplecov', '~> 0.22.0'
 gem 'simplecov-lcov', '~> 0.8.0'
-gem 'redis', '>= 5.0.0'
 
 # TODO: gems added for development, remove before merge
 # gem 'pry'
-

lib/mock_redis/utility_methods.rb

@@ -79,7 +79,7 @@ def redis_gem_v5?
       Redis::VERSION.to_i == 5
     end
 
-    def size_after(obj, &blk)
+    def size_after(obj, &_blk)
       size_before = obj.size
       yield
       (obj.size - size_before).abs

spec/commands/sadd_spec.rb

@@ -4,7 +4,7 @@
   before { @key = 'mock-redis-test:sadd' }
 
   context 'sadd' do
-    context "adapts to redis-rd version 4 and 5 outputs" do
+    context 'adapts to redis-rd version 4 and 5 outputs' do
       include MockRedis::UtilityMethods
 
       let(:positive_response) { redis_gem_v5? ? 1 : true }

spec/commands/srem_spec.rb

@@ -8,7 +8,7 @@
     @redises.sadd(@key, 'ernie')
   end
 
-  context "adapts to redis-rd version 4 and 5 outputs" do
+  context 'adapts to redis-rd version 4 and 5 outputs' do
     include MockRedis::UtilityMethods
 
     let(:positive_response) { redis_gem_v5? ? 1 : true }