Modernize rubocop.

Author: simi

.rubocop.yml

@@ -1,10 +1,10 @@
-require:
+plugins:
   - rubocop-rspec
   - rubocop-performance
 
 AllCops:
   DisabledByDefault: false
-  TargetRubyVersion: 3.0
+  TargetRubyVersion: 3.1
   NewCops: enable
   SuggestExtensions: false
   Exclude:
@@ -152,7 +152,10 @@ RSpec/DescribedClass:
 RSpec/DescribeClass:
   Enabled: false
 
-RSpec/FilePath:
+RSpec/SpecFilePathFormat:
+  Enabled: false
+
+RSpec/SpecFilePathSuffix:
   Enabled: false
 
 RSpec/MultipleExpectations:

lib/xpath/union.rb

@@ -15,8 +15,8 @@ def expression
       :union
     end
 
-    def each(&block)
-      arguments.each(&block)
+    def each(&)
+      arguments.each(&)
     end
 
     def method_missing(*args) # rubocop:disable Style/MissingRespondToMissing

spec/union_spec.rb

@@ -20,8 +20,7 @@
       @expr1 = XPath.generate { |x| x.descendant(:p) }
       @expr2 = XPath.generate { |x| x.descendant(:div) }
       @collection = XPath::Union.new(@expr1, @expr2)
-      exprs = []
-      @collection.each { |expr| exprs << expr }
+      exprs = @collection.map { |expr| expr }
       expect(exprs).to eq [@expr1, @expr2]
     end
   end