Parameter validation: Raises error for all missing (#886)

* Parameter validation: Raises error for all missing

- Instead of just raising `ParamMissing` for the first missing,
  instead raise a compound `ParamMultipleMissing` if there are more
  than one missing.
- Adds specs for both POST and GET requests.
- Fixes #802

* Run `rubocop --auto-gen-config --exclude-limit 180`

* Make BlockLength 26 in `.rubocop.yml` as well

.rubocop.yml

@@ -46,7 +46,7 @@ Metrics/ClassLength:
     - spec/dummy/app/controllers/users_controller.rb
 
 Metrics/BlockLength:
-  Max: 25 # default
+  Max: 26 # default
   Exclude:
     - app/controllers/apipie/apipies_controller.rb
     - lib/apipie/generator/swagger/param_description/composite.rb

.rubocop_todo.yml

@@ -1,6 +1,6 @@
 # This configuration was generated by
 # `rubocop --auto-gen-config --exclude-limit 180`
-# on 2023-06-02 23:32:14 UTC using RuboCop version 1.52.0.
+# on 2023-06-09 05:29:05 UTC using RuboCop version 1.52.0.
 # The point is for the user to remove these configuration records
 # one by one as the offenses are removed from the code base.
 # Note that changes in the inspected code, or installation of new
@@ -118,7 +118,7 @@ Layout/ElseAlignment:
     - 'lib/apipie/param_description.rb'
     - 'lib/apipie/resource_description.rb'
 
-# Offense count: 59
+# Offense count: 58
 # This cop supports safe autocorrection (--autocorrect).
 Layout/EmptyLineAfterGuardClause:
   Exclude:
@@ -783,6 +783,12 @@ Lint/Void:
 Metrics/AbcSize:
   Max: 96
 
+# Offense count: 1
+# Configuration parameters: CountComments, CountAsOne, AllowedMethods, AllowedPatterns, inherit_mode.
+# AllowedMethods: refine
+Metrics/BlockLength:
+  Max: 26
+
 # Offense count: 4
 # Configuration parameters: CountBlocks.
 Metrics/BlockNesting:
@@ -793,11 +799,16 @@ Metrics/BlockNesting:
 Metrics/CyclomaticComplexity:
   Max: 24
 
-# Offense count: 78
+# Offense count: 79
 # Configuration parameters: CountComments, CountAsOne, AllowedMethods, AllowedPatterns.
 Metrics/MethodLength:
   Max: 58
 
+# Offense count: 1
+# Configuration parameters: CountComments, CountAsOne.
+Metrics/ModuleLength:
+  Max: 101
+
 # Offense count: 4
 # Configuration parameters: CountKeywordArgs.
 Metrics/ParameterLists:
@@ -1048,7 +1059,7 @@ RSpec/EmptyLineAfterHook:
 RSpec/ExampleLength:
   Max: 85
 
-# Offense count: 158
+# Offense count: 159
 # This cop supports safe autocorrection (--autocorrect).
 # Configuration parameters: CustomTransform, IgnoredWords, DisallowedExamples.
 # DisallowedExamples: works
@@ -1137,7 +1148,7 @@ RSpec/MessageSpies:
 RSpec/MultipleExpectations:
   Max: 19
 
-# Offense count: 154
+# Offense count: 156
 # Configuration parameters: AllowSubject.
 RSpec/MultipleMemoizedHelpers:
   Max: 15
@@ -1162,18 +1173,17 @@ RSpec/NamedSubject:
     - 'spec/lib/swagger/rake_swagger_spec.rb'
     - 'spec/lib/swagger/swagger_dsl_spec.rb'
 
-# Offense count: 93
+# Offense count: 94
 # Configuration parameters: AllowedGroups.
 RSpec/NestedGroups:
   Max: 6
 
-# Offense count: 2
+# Offense count: 1
 # Configuration parameters: AllowedPatterns.
 # AllowedPatterns: ^expect_, ^assert_
 RSpec/NoExpectationExample:
   Exclude:
     - 'spec/controllers/users_controller_spec.rb'
-    - 'spec/test_engine/memes_controller_spec.rb'
 
 # Offense count: 2
 # This cop supports safe autocorrection (--autocorrect).
@@ -1366,7 +1376,7 @@ Style/AndOr:
   Exclude:
     - 'lib/apipie/param_description.rb'
 
-# Offense count: 17
+# Offense count: 18
 # This cop supports safe autocorrection (--autocorrect).
 # Configuration parameters: EnforcedStyle, ProceduralMethods, FunctionalMethods, AllowedMethods, AllowedPatterns, AllowBracesOnProceduralOneLiners, BracesRequiredMethods.
 # SupportedStyles: line_count_based, semantic, braces_for_chaining, always_braces
@@ -1522,7 +1532,7 @@ Style/EmptyElse:
     - 'lib/apipie/extractor/recorder.rb'
     - 'lib/apipie/extractor/writer.rb'
 
-# Offense count: 26
+# Offense count: 27
 # This cop supports safe autocorrection (--autocorrect).
 # Configuration parameters: EnforcedStyle.
 # SupportedStyles: compact, expanded
@@ -1765,7 +1775,6 @@ Style/Proc:
 Style/RaiseArgs:
   Exclude:
     - 'lib/apipie/application.rb'
-    - 'lib/apipie/dsl_definition.rb'
     - 'lib/apipie/extractor/writer.rb'
     - 'lib/apipie/param_description.rb'
     - 'lib/apipie/see_description.rb'
@@ -1917,7 +1926,7 @@ Style/StringConcatenation:
     - 'lib/apipie/application.rb'
     - 'lib/apipie/extractor/writer.rb'
 
-# Offense count: 1210
+# Offense count: 1212
 # This cop supports safe autocorrection (--autocorrect).
 # Configuration parameters: EnforcedStyle, ConsistentQuotesInMultiline.
 # SupportedStyles: single_quotes, double_quotes

lib/apipie/dsl_definition.rb

@@ -241,9 +241,11 @@ def _apipie_define_validators(description)
               method_params = self.class._apipie_get_method_params(action_name)
 
               if Apipie.configuration.validate_presence?
-                method_params.each do |_, param|
-                  # check if required parameters are present
-                  raise ParamMissing.new(param) if param.required && !params.key?(param.name)
+                Validator::BaseValidator.raise_if_missing_params do |missing|
+                  method_params.each do |_, param|
+                    # check if required parameters are present
+                    missing << param if param.required && !params.key?(param.name)
+                  end
                 end
               end
 
@@ -285,7 +287,6 @@ def _apipie_define_validators(description)
               old_method.bind(self).call(*args)
             end
           end
-
         end
       end
 

lib/apipie/errors.rb

@@ -24,6 +24,20 @@ def initialize(param)
     end
   end
 
+  class ParamMultipleMissing < ParamError
+    attr_accessor :params
+
+    def initialize(params)
+      @params = params
+    end
+
+    def to_s
+      params.map do |param|
+        ParamMissing.new(param).to_s
+      end.join("\n")
+    end
+  end
+
   class ParamMissing < DefinedParamError
     def to_s
       unless @param.options[:missing_message].nil?

lib/apipie/validator.rb

@@ -38,6 +38,16 @@ def self.find(param_description, argument, options, block)
         return nil
       end
 
+      def self.raise_if_missing_params
+        missing_params = []
+        yield missing_params
+        if missing_params.size > 1
+          raise ParamMultipleMissing.new(missing_params)
+        elsif missing_params.size == 1
+          raise ParamMissing.new(missing_params.first)
+        end
+      end
+
       # check if value is valid
       def valid?(value)
         if self.validate(value)
@@ -345,14 +355,18 @@ def params_ordered
 
       def validate(value)
         return false if !value.is_a? Hash
-        @hash_params&.each do |k, p|
-          if Apipie.configuration.validate_presence?
-            raise ParamMissing.new(p) if p.required && !value.key?(k)
-          end
-          if Apipie.configuration.validate_value?
-            p.validate(value[k]) if value.key?(k)
+
+        BaseValidator.raise_if_missing_params do |missing|
+          @hash_params&.each do |k, p|
+            if Apipie.configuration.validate_presence?
+              missing << p if p.required && !value.key?(k)
+            end
+            if Apipie.configuration.validate_value?
+              p.validate(value[k]) if value.key?(k)
+            end
           end
         end
+
         return true
       end
 

spec/controllers/users_controller_spec.rb

@@ -37,6 +37,7 @@ def compare_hashes(h1, h2)
       expect(methods.keys).to include(:update)
       expect(methods.keys).to include(:two_urls)
       expect(methods.keys).to include(:action_with_headers)
+      expect(methods.keys).to include(:multiple_required_params)
     end
 
     it "should contain info about resource" do
@@ -101,6 +102,10 @@ def reload_controllers
             expect { get :show, :params => { :id => 5 }}.to raise_error(Apipie::ParamMissing, /session_parameter_is_required/)
           end
 
+          it "should fail if multiple required parameters are missing" do
+            expect { get :multiple_required_params }.to raise_error(Apipie::ParamMultipleMissing, /required_param1.*\n.*required_param2|required_param2.*\n.*required_parameter1/)
+          end
+
           it "should pass if required parameter has wrong type" do
             expect { get :show, :params => { :id => 5 , :session => "secret_hash" }}.not_to raise_error
             expect { get :show, :params => { :id => "ten" , :session => "secret_hash" }}.not_to raise_error
@@ -246,6 +251,11 @@ def reload_controllers
               post :create, :params => { :user => { :name => "root", :pass => "12345", :membership => "____" } }
             }.to raise_error(Apipie::ParamInvalid, /membership/)
 
+            # Should include both pass and name
+            expect {
+              post :create, :params => { :user => { :membership => "standard" } }
+            }.to raise_error(Apipie::ParamMultipleMissing, /pass.*\n.*name|name.*\n.*pass/)
+
             expect {
               post :create, :params => { :user => { :name => "root" } }
             }.to raise_error(Apipie::ParamMissing, /pass/)

spec/dummy/app/controllers/users_controller.rb

@@ -301,4 +301,10 @@ def create_route
   header :HeaderNameWithDefaultValue, 'Header with default value', required: true, default: 'default value'
   def action_with_headers
   end
+
+  api :GET, '/users/multiple_required_params'
+  param :required_param1, String, required: true
+  param :required_param2, String, required: true
+  def multiple_required_params
+  end
 end

spec/dummy/config/routes.rb

@@ -8,6 +8,7 @@
       resources :users do
         collection do
           post :create_route
+          get :multiple_required_params
         end
       end
       resources :concerns, :only => [:index, :show]