Add logic to ensure badge information (Department/Name) is in CamelCa…

…se (#10271)

lib/rubocop/cop/badge.rb

@@ -19,7 +19,13 @@ def self.for(class_name)
       end
 
       def self.parse(identifier)
-        new(identifier.split('/'))
+        new(identifier.split('/').map { |i| camel_case(i) })
+      end
+
+      def self.camel_case(name_part)
+        return 'RSpec' if name_part == 'rspec'
+
+        name_part.gsub(/^\w|_\w/) { |match| match[-1, 1].upcase }
       end
 
       def initialize(class_name_parts)

spec/rubocop/cop/badge_spec.rb

@@ -35,7 +35,9 @@
       end
     end
 
+    include_examples 'cop identifier parsing', 'bar', %w[Bar]
     include_examples 'cop identifier parsing', 'Bar', %w[Bar]
+    include_examples 'cop identifier parsing', 'snake_case/example', %w[SnakeCase Example]
     include_examples 'cop identifier parsing', 'Foo/Bar', %w[Foo Bar]
     include_examples 'cop identifier parsing', 'Foo/Bar/Baz', %w[Foo Bar Baz]
     include_examples 'cop identifier parsing', 'Foo/Bar/Baz/Qux', %w[Foo Bar Baz Qux]
@@ -79,4 +81,18 @@
       expect(described_class.parse('Deep/Department/Bar').qualified?).to be(true)
     end
   end
+
+  describe '#camel_case' do
+    it 'converts "lint" to CamelCase' do
+      expect(described_class.camel_case('lint')).to eq('Lint')
+    end
+
+    it 'converts "foo_bar" to CamelCase' do
+      expect(described_class.camel_case('foo_bar')).to eq('FooBar')
+    end
+
+    it 'converts "rspec" to CamelCase' do
+      expect(described_class.camel_case('rspec')).to eq('RSpec')
+    end
+  end
 end