Disables FrozenStringLiteralComment rule (#840)

* Disables FrozenStringLiteralComment rule

Why https://github.com/testdouble/standard#why-arent-frozen_string_literal-true-magic-comments-enforced

* Pass error message to constructor instead of overriding `#to_s`

`Exception#to_s` returns the given message,
we can pass the error message to constructor instead of overriding the method.

This will also fix the Rubocop offenses.

* Exclude files from MissingSuper

.rubocop.yml

@@ -116,6 +116,15 @@ Style/Documentation:
     - spec/lib/validators/array_validator_spec.rb
     - spec/dummy/**/*.rb
 
+Style/FrozenStringLiteralComment:
+  Enabled: false
+
 Naming/BlockForwarding:
   EnforcedStyle: explicit
   BlockForwardingName: block
+
+Lint/MissingSuper:
+  Exclude:
+    - 'lib/apipie/errors.rb'
+    - 'lib/apipie/response_description_adapter.rb'
+    - 'lib/apipie/validator.rb'

lib/apipie/errors.rb

@@ -60,27 +60,13 @@ def to_s
 
   class ResponseDoesNotMatchSwaggerSchema < Error
     def initialize(controller_name, method_name, response_code, error_messages, schema, returned_object)
-      @controller_name = controller_name
-      @method_name = method_name
-      @response_code = response_code
-      @error_messages = error_messages
-      @schema = schema
-      @returned_object = returned_object
-    end
-
-    def to_s
-      "Response does not match swagger schema (#{@controller_name}##{@method_name} #{@response_code}): #{@error_messages}\nSchema: #{JSON(@schema)}\nReturned object: #{@returned_object}"
+      super("Response does not match swagger schema (#{controller_name}##{method_name} #{response_code}): #{error_messages}\nSchema: #{JSON(schema)}\nReturned object: #{returned_object}")
     end
   end
 
   class NoDocumentedMethod < Error
     def initialize(controller_name, method_name)
-      @method_name = method_name
-      @controller_name = controller_name
-    end
-
-    def to_s
-      "There is no documented method #{@controller_name}##{@method_name}"
+      super("There is no documented method #{controller_name}##{method_name}")
     end
   end
 end

spec/lib/apipie/no_documented_method_spec.rb

@@ -0,0 +1,17 @@
+require 'spec_helper'
+
+describe Apipie::NoDocumentedMethod do
+  let(:error) { described_class.new(controller_name, method_name) }
+  let(:controller_name) { 'UserController' }
+  let(:method_name) { 'index' }
+
+  describe '#to_s' do
+    subject { error.to_s }
+
+    let(:error_message) do
+      "There is no documented method #{controller_name}##{method_name}"
+    end
+
+    it { is_expected.to eq(error_message) }
+  end
+end

spec/lib/apipie/response_does_not_match_swagger_schema_spec.rb

@@ -0,0 +1,35 @@
+require 'spec_helper'
+
+describe Apipie::ResponseDoesNotMatchSwaggerSchema do
+  let(:error) do
+    described_class.new(
+      controller_name,
+      method_name,
+      response_code,
+      error_messages,
+      schema,
+      returned_object
+    )
+  end
+
+  let(:controller_name) { 'UserController' }
+  let(:method_name) { 'index' }
+  let(:response_code) { 200 }
+  let(:error_messages) { [] }
+  let(:schema) { {} }
+  let(:returned_object) { {} }
+
+  describe '#to_s' do
+    subject { error.to_s }
+
+    let(:error_message) do
+      <<~HEREDOC.chomp
+        Response does not match swagger schema (#{controller_name}##{method_name} #{response_code}): #{error_messages}
+        Schema: #{JSON(schema)}
+        Returned object: #{returned_object}
+      HEREDOC
+    end
+
+    it { is_expected.to eq(error_message) }
+  end
+end