Merge pull request #340 from tatsuyafw/fix-broken-spec

Fix failed tests

.travis.yml

@@ -12,7 +12,6 @@ gemfile:
   - gemfiles/rails_5.0.gemfile
   - gemfiles/rails_5.1.gemfile
   - gemfiles/rails_5.2.gemfile
-  - gemfiles/nobrainer.gemfile
 
 # matrix:
 #   exclude:

spec/ext/active_record_spec.rb

@@ -126,7 +126,11 @@ EOS
       out = @ap.awesome(@diana)
 
       raw_object_string =
-        if activerecord_5_0?
+        if activerecord_5_2?
+          ActiveRecordData.raw_5_2_diana
+        elsif activerecord_5_1?
+          ActiveRecordData.raw_5_1_diana
+        elsif activerecord_5_0?
           ActiveRecordData.raw_5_0_diana
         elsif activerecord_4_2?
           if RUBY_VERSION > '1.9.3'
@@ -153,7 +157,11 @@ EOS
       out = @ap.awesome([@diana, @laura])
 
       raw_object_string =
-        if activerecord_5_0?
+        if activerecord_5_2?
+          ActiveRecordData.raw_5_2_multi
+        elsif activerecord_5_1?
+          ActiveRecordData.raw_5_1_multi
+        elsif activerecord_5_0?
           ActiveRecordData.raw_5_0_multi
         elsif activerecord_4_2?
           if RUBY_VERSION > '1.9.3'
@@ -225,7 +233,9 @@ class SubUser < User {
       out = @ap.awesome(User.methods.grep(/first/))
 
       if ActiveRecord::VERSION::STRING >= '3.2'
-        if RUBY_VERSION >= '1.9'
+        if RUBY_VERSION >= '2.5'
+          expect(out).to match(/\sfirst\(\*arg.*?\)\s+User/)
+        elsif RUBY_VERSION >= '1.9'
           expect(out).to match(/\sfirst\(\*args,\s&block\)\s+Class \(ActiveRecord::Querying\)/)
         else
           expect(out).to match(/\sfirst\(\*arg1\)\s+Class \(ActiveRecord::Querying\)/)
@@ -236,7 +246,11 @@ class SubUser < User {
 
       # spec 2
       out = @ap.awesome(User.methods.grep(/primary_key/))
-      expect(out).to match(/\sprimary_key\(.*?\)\s+Class \(ActiveRecord::AttributeMethods::PrimaryKey::ClassMethods\)/)
+      if RUBY_VERSION >= '2.5'
+        expect(out).to match(/\sprimary_key\(.*?\)\s+User/)
+      else
+        expect(out).to match(/\sprimary_key\(.*?\)\s+Class \(ActiveRecord::AttributeMethods::PrimaryKey::ClassMethods\)/)
+      end
 
       # spec 3
       out = @ap.awesome(User.methods.grep(/validate/))
@@ -244,7 +258,11 @@ class SubUser < User {
       if ActiveRecord::VERSION::MAJOR < 3
         expect(out).to match(/\svalidate\(\*arg.*?\)\s+User \(ActiveRecord::Base\)/)
       else
-        expect(out).to match(/\svalidate\(\*arg.*?\)\s+Class \(ActiveModel::Validations::ClassMethods\)/)
+        if RUBY_VERSION >= '2.5'
+          expect(out).to match(/\svalidate\(\*arg.*?\)\s+User/)
+        else
+          expect(out).to match(/\svalidate\(\*arg.*?\)\s+Class \(ActiveModel::Validations::ClassMethods\)/)
+        end
       end
 
     end

spec/methods_spec.rb

@@ -7,12 +7,20 @@ RSpec.describe 'Single method' do
 
   it 'plain: should handle a method with no arguments' do
     method = ''.method(:upcase)
-    expect(method.ai(plain: true)).to eq('String#upcase()')
+    if RUBY_VERSION >= '2.4.0'
+      expect(method.ai(plain: true)).to eq('String#upcase(*arg1)')
+    else
+      expect(method.ai(plain: true)).to eq('String#upcase()')
+    end
   end
 
   it 'color: should handle a method with no arguments' do
     method = ''.method(:upcase)
-    expect(method.ai).to eq("\e[1;33mString\e[0m#\e[0;35mupcase\e[0m\e[0;37m()\e[0m")
+    if RUBY_VERSION >= '2.4.0'
+      expect(method.ai).to eq("\e[1;33mString\e[0m#\e[0;35mupcase\e[0m\e[0;37m(*arg1)\e[0m")
+    else
+      expect(method.ai).to eq("\e[1;33mString\e[0m#\e[0;35mupcase\e[0m\e[0;37m()\e[0m")
+    end
   end
 
   it 'plain: should handle a method with one argument' do

spec/support/active_record_data/5_1_diana.txt

@@ -0,0 +1,104 @@
+#<User:placeholder_id
+    @_start_transaction_state = {},
+    @aggregation_cache = {},
+    @association_cache = {},
+    @destroyed = false,
+    @marked_for_destruction = false,
+    @new_record = true,
+    @readonly = false,
+    @transaction_state = nil,
+    attr_accessor :attributes = #<ActiveRecord::AttributeSet:placeholder_id
+        @attributes = {
+                 "admin" => #<ActiveRecord::Attribute::FromUser:placeholder_id
+                @original_attribute = #<ActiveRecord::Attribute::FromDatabase:placeholder_id
+                    @original_attribute = nil,
+                    attr_reader :name = "admin",
+                    attr_reader :type = #<ActiveModel::Type::Boolean:placeholder_id
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = nil
+                >,
+                attr_reader :name = "admin",
+                attr_reader :type = #<ActiveModel::Type::Boolean:placeholder_id
+                    attr_reader :limit = nil,
+                    attr_reader :precision = nil,
+                    attr_reader :scale = nil
+                >,
+                attr_reader :value_before_type_cast = false
+            >,
+            "created_at" => #<ActiveRecord::Attribute::FromUser:placeholder_id
+                @original_attribute = #<ActiveRecord::Attribute::FromDatabase:placeholder_id
+                    @original_attribute = nil,
+                    attr_reader :name = "created_at",
+                    attr_reader :type = #<ActiveRecord::Type::DateTime:placeholder_id
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = nil
+                >,
+                attr_reader :name = "created_at",
+                attr_reader :type = #<ActiveRecord::Type::DateTime:placeholder_id
+                    attr_reader :limit = nil,
+                    attr_reader :precision = nil,
+                    attr_reader :scale = nil
+                >,
+                attr_reader :value_before_type_cast = "1992-10-10 12:30:00"
+            >,
+                    "id" => #<ActiveRecord::Attribute::FromDatabase:placeholder_id
+                @original_attribute = nil,
+                attr_reader :name = "id",
+                attr_reader :type = #<ActiveModel::Type::Integer:placeholder_id
+                    @range = -2147483648...2147483648,
+                    attr_reader :limit = nil,
+                    attr_reader :precision = nil,
+                    attr_reader :scale = nil
+                >,
+                attr_reader :value_before_type_cast = nil
+            >,
+                  "name" => #<ActiveRecord::Attribute::FromUser:placeholder_id
+                @original_attribute = #<ActiveRecord::Attribute::FromDatabase:placeholder_id
+                    @original_attribute = nil,
+                    attr_reader :name = "name",
+                    attr_reader :type = #<ActiveModel::Type::String:placeholder_id
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = nil
+                >,
+                attr_reader :name = "name",
+                attr_reader :type = #<ActiveModel::Type::String:placeholder_id
+                    attr_reader :limit = nil,
+                    attr_reader :precision = nil,
+                    attr_reader :scale = nil
+                >,
+                attr_reader :value_before_type_cast = "Diana"
+            >,
+                  "rank" => #<ActiveRecord::Attribute::FromUser:placeholder_id
+                @original_attribute = #<ActiveRecord::Attribute::FromDatabase:placeholder_id
+                    @original_attribute = nil,
+                    attr_reader :name = "rank",
+                    attr_reader :type = #<ActiveModel::Type::Integer:placeholder_id
+                        @range = -2147483648...2147483648,
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = nil
+                >,
+                attr_reader :name = "rank",
+                attr_reader :type = #<ActiveModel::Type::Integer:placeholder_id
+                    @range = -2147483648...2147483648,
+                    attr_reader :limit = nil,
+                    attr_reader :precision = nil,
+                    attr_reader :scale = nil
+                >,
+                attr_reader :value_before_type_cast = 1
+            >
+        }
+    >,
+    attr_accessor :destroyed_by_association = nil
+>

spec/support/active_record_data/5_1_multi.txt

@@ -0,0 +1,210 @@
+[
+    [0] #<User:placeholder_id
+        @_start_transaction_state = {},
+        @aggregation_cache = {},
+        @association_cache = {},
+        @destroyed = false,
+        @marked_for_destruction = false,
+        @new_record = true,
+        @readonly = false,
+        @transaction_state = nil,
+        attr_accessor :attributes = #<ActiveRecord::AttributeSet:placeholder_id
+            @attributes = {
+                     "admin" => #<ActiveRecord::Attribute::FromUser:placeholder_id
+                    @original_attribute = #<ActiveRecord::Attribute::FromDatabase:placeholder_id
+                        @original_attribute = nil,
+                        attr_reader :name = "admin",
+                        attr_reader :type = #<ActiveModel::Type::Boolean:placeholder_id
+                            attr_reader :limit = nil,
+                            attr_reader :precision = nil,
+                            attr_reader :scale = nil
+                        >,
+                        attr_reader :value_before_type_cast = nil
+                    >,
+                    attr_reader :name = "admin",
+                    attr_reader :type = #<ActiveModel::Type::Boolean:placeholder_id
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = false
+                >,
+                "created_at" => #<ActiveRecord::Attribute::FromUser:placeholder_id
+                    @original_attribute = #<ActiveRecord::Attribute::FromDatabase:placeholder_id
+                        @original_attribute = nil,
+                        attr_reader :name = "created_at",
+                        attr_reader :type = #<ActiveRecord::Type::DateTime:placeholder_id
+                            attr_reader :limit = nil,
+                            attr_reader :precision = nil,
+                            attr_reader :scale = nil
+                        >,
+                        attr_reader :value_before_type_cast = nil
+                    >,
+                    attr_reader :name = "created_at",
+                    attr_reader :type = #<ActiveRecord::Type::DateTime:placeholder_id
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = "1992-10-10 12:30:00"
+                >,
+                        "id" => #<ActiveRecord::Attribute::FromDatabase:placeholder_id
+                    @original_attribute = nil,
+                    attr_reader :name = "id",
+                    attr_reader :type = #<ActiveModel::Type::Integer:placeholder_id
+                        @range = -2147483648...2147483648,
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = nil
+                >,
+                      "name" => #<ActiveRecord::Attribute::FromUser:placeholder_id
+                    @original_attribute = #<ActiveRecord::Attribute::FromDatabase:placeholder_id
+                        @original_attribute = nil,
+                        attr_reader :name = "name",
+                        attr_reader :type = #<ActiveModel::Type::String:placeholder_id
+                            attr_reader :limit = nil,
+                            attr_reader :precision = nil,
+                            attr_reader :scale = nil
+                        >,
+                        attr_reader :value_before_type_cast = nil
+                    >,
+                    attr_reader :name = "name",
+                    attr_reader :type = #<ActiveModel::Type::String:placeholder_id
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = "Diana"
+                >,
+                      "rank" => #<ActiveRecord::Attribute::FromUser:placeholder_id
+                    @original_attribute = #<ActiveRecord::Attribute::FromDatabase:placeholder_id
+                        @original_attribute = nil,
+                        attr_reader :name = "rank",
+                        attr_reader :type = #<ActiveModel::Type::Integer:placeholder_id
+                            @range = -2147483648...2147483648,
+                            attr_reader :limit = nil,
+                            attr_reader :precision = nil,
+                            attr_reader :scale = nil
+                        >,
+                        attr_reader :value_before_type_cast = nil
+                    >,
+                    attr_reader :name = "rank",
+                    attr_reader :type = #<ActiveModel::Type::Integer:placeholder_id
+                        @range = -2147483648...2147483648,
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = 1
+                >
+            }
+        >,
+        attr_accessor :destroyed_by_association = nil
+    >,
+    [1] #<User:placeholder_id
+        @_start_transaction_state = {},
+        @aggregation_cache = {},
+        @association_cache = {},
+        @destroyed = false,
+        @marked_for_destruction = false,
+        @new_record = true,
+        @readonly = false,
+        @transaction_state = nil,
+        attr_accessor :attributes = #<ActiveRecord::AttributeSet:placeholder_id
+            @attributes = {
+                     "admin" => #<ActiveRecord::Attribute::FromUser:placeholder_id
+                    @original_attribute = #<ActiveRecord::Attribute::FromDatabase:placeholder_id
+                        @original_attribute = nil,
+                        attr_reader :name = "admin",
+                        attr_reader :type = #<ActiveModel::Type::Boolean:placeholder_id
+                            attr_reader :limit = nil,
+                            attr_reader :precision = nil,
+                            attr_reader :scale = nil
+                        >,
+                        attr_reader :value_before_type_cast = nil
+                    >,
+                    attr_reader :name = "admin",
+                    attr_reader :type = #<ActiveModel::Type::Boolean:placeholder_id
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = true
+                >,
+                "created_at" => #<ActiveRecord::Attribute::FromUser:placeholder_id
+                    @original_attribute = #<ActiveRecord::Attribute::FromDatabase:placeholder_id
+                        @original_attribute = nil,
+                        attr_reader :name = "created_at",
+                        attr_reader :type = #<ActiveRecord::Type::DateTime:placeholder_id
+                            attr_reader :limit = nil,
+                            attr_reader :precision = nil,
+                            attr_reader :scale = nil
+                        >,
+                        attr_reader :value_before_type_cast = nil
+                    >,
+                    attr_reader :name = "created_at",
+                    attr_reader :type = #<ActiveRecord::Type::DateTime:placeholder_id
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = "2003-05-26 14:15:00"
+                >,
+                        "id" => #<ActiveRecord::Attribute::FromDatabase:placeholder_id
+                    @original_attribute = nil,
+                    attr_reader :name = "id",
+                    attr_reader :type = #<ActiveModel::Type::Integer:placeholder_id
+                        @range = -2147483648...2147483648,
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = nil
+                >,
+                      "name" => #<ActiveRecord::Attribute::FromUser:placeholder_id
+                    @original_attribute = #<ActiveRecord::Attribute::FromDatabase:placeholder_id
+                        @original_attribute = nil,
+                        attr_reader :name = "name",
+                        attr_reader :type = #<ActiveModel::Type::String:placeholder_id
+                            attr_reader :limit = nil,
+                            attr_reader :precision = nil,
+                            attr_reader :scale = nil
+                        >,
+                        attr_reader :value_before_type_cast = nil
+                    >,
+                    attr_reader :name = "name",
+                    attr_reader :type = #<ActiveModel::Type::String:placeholder_id
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = "Laura"
+                >,
+                      "rank" => #<ActiveRecord::Attribute::FromUser:placeholder_id
+                    @original_attribute = #<ActiveRecord::Attribute::FromDatabase:placeholder_id
+                        @original_attribute = nil,
+                        attr_reader :name = "rank",
+                        attr_reader :type = #<ActiveModel::Type::Integer:placeholder_id
+                            @range = -2147483648...2147483648,
+                            attr_reader :limit = nil,
+                            attr_reader :precision = nil,
+                            attr_reader :scale = nil
+                        >,
+                        attr_reader :value_before_type_cast = nil
+                    >,
+                    attr_reader :name = "rank",
+                    attr_reader :type = #<ActiveModel::Type::Integer:placeholder_id
+                        @range = -2147483648...2147483648,
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = 2
+                >
+            }
+        >,
+        attr_accessor :destroyed_by_association = nil
+    >
+]

spec/support/active_record_data/5_2_diana.txt

@@ -0,0 +1,104 @@
+#<User:placeholder_id
+    @_start_transaction_state = {},
+    @aggregation_cache = {},
+    @association_cache = {},
+    @destroyed = false,
+    @marked_for_destruction = false,
+    @new_record = true,
+    @readonly = false,
+    @transaction_state = nil,
+    attr_accessor :attributes = #<ActiveModel::AttributeSet:placeholder_id
+        @attributes = {
+                 "admin" => #<ActiveModel::Attribute::FromUser:placeholder_id
+                @original_attribute = #<ActiveModel::Attribute::FromDatabase:placeholder_id
+                    @original_attribute = nil,
+                    attr_reader :name = "admin",
+                    attr_reader :type = #<ActiveModel::Type::Boolean:placeholder_id
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = nil
+                >,
+                attr_reader :name = "admin",
+                attr_reader :type = #<ActiveModel::Type::Boolean:placeholder_id
+                    attr_reader :limit = nil,
+                    attr_reader :precision = nil,
+                    attr_reader :scale = nil
+                >,
+                attr_reader :value_before_type_cast = false
+            >,
+            "created_at" => #<ActiveModel::Attribute::FromUser:placeholder_id
+                @original_attribute = #<ActiveModel::Attribute::FromDatabase:placeholder_id
+                    @original_attribute = nil,
+                    attr_reader :name = "created_at",
+                    attr_reader :type = #<ActiveRecord::Type::DateTime:placeholder_id
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = nil
+                >,
+                attr_reader :name = "created_at",
+                attr_reader :type = #<ActiveRecord::Type::DateTime:placeholder_id
+                    attr_reader :limit = nil,
+                    attr_reader :precision = nil,
+                    attr_reader :scale = nil
+                >,
+                attr_reader :value_before_type_cast = "1992-10-10 12:30:00"
+            >,
+                    "id" => #<ActiveModel::Attribute::FromDatabase:placeholder_id
+                @original_attribute = nil,
+                attr_reader :name = "id",
+                attr_reader :type = #<ActiveRecord::ConnectionAdapters::SQLite3Adapter::SQLite3Integer:placeholder_id
+                    @range = -9223372036854775808...9223372036854775808,
+                    attr_reader :limit = nil,
+                    attr_reader :precision = nil,
+                    attr_reader :scale = nil
+                >,
+                attr_reader :value_before_type_cast = nil
+            >,
+                  "name" => #<ActiveModel::Attribute::FromUser:placeholder_id
+                @original_attribute = #<ActiveModel::Attribute::FromDatabase:placeholder_id
+                    @original_attribute = nil,
+                    attr_reader :name = "name",
+                    attr_reader :type = #<ActiveModel::Type::String:placeholder_id
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = nil
+                >,
+                attr_reader :name = "name",
+                attr_reader :type = #<ActiveModel::Type::String:placeholder_id
+                    attr_reader :limit = nil,
+                    attr_reader :precision = nil,
+                    attr_reader :scale = nil
+                >,
+                attr_reader :value_before_type_cast = "Diana"
+            >,
+                  "rank" => #<ActiveModel::Attribute::FromUser:placeholder_id
+                @original_attribute = #<ActiveModel::Attribute::FromDatabase:placeholder_id
+                    @original_attribute = nil,
+                    attr_reader :name = "rank",
+                    attr_reader :type = #<ActiveRecord::ConnectionAdapters::SQLite3Adapter::SQLite3Integer:placeholder_id
+                        @range = -9223372036854775808...9223372036854775808,
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = nil
+                >,
+                attr_reader :name = "rank",
+                attr_reader :type = #<ActiveRecord::ConnectionAdapters::SQLite3Adapter::SQLite3Integer:placeholder_id
+                    @range = -9223372036854775808...9223372036854775808,
+                    attr_reader :limit = nil,
+                    attr_reader :precision = nil,
+                    attr_reader :scale = nil
+                >,
+                attr_reader :value_before_type_cast = 1
+            >
+        }
+    >,
+    attr_accessor :destroyed_by_association = nil
+>

spec/support/active_record_data/5_2_multi.txt

@@ -0,0 +1,210 @@
+[
+    [0] #<User:placeholder_id
+        @_start_transaction_state = {},
+        @aggregation_cache = {},
+        @association_cache = {},
+        @destroyed = false,
+        @marked_for_destruction = false,
+        @new_record = true,
+        @readonly = false,
+        @transaction_state = nil,
+        attr_accessor :attributes = #<ActiveModel::AttributeSet:placeholder_id
+            @attributes = {
+                     "admin" => #<ActiveModel::Attribute::FromUser:placeholder_id
+                    @original_attribute = #<ActiveModel::Attribute::FromDatabase:placeholder_id
+                        @original_attribute = nil,
+                        attr_reader :name = "admin",
+                        attr_reader :type = #<ActiveModel::Type::Boolean:placeholder_id
+                            attr_reader :limit = nil,
+                            attr_reader :precision = nil,
+                            attr_reader :scale = nil
+                        >,
+                        attr_reader :value_before_type_cast = nil
+                    >,
+                    attr_reader :name = "admin",
+                    attr_reader :type = #<ActiveModel::Type::Boolean:placeholder_id
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = false
+                >,
+                "created_at" => #<ActiveModel::Attribute::FromUser:placeholder_id
+                    @original_attribute = #<ActiveModel::Attribute::FromDatabase:placeholder_id
+                        @original_attribute = nil,
+                        attr_reader :name = "created_at",
+                        attr_reader :type = #<ActiveRecord::Type::DateTime:placeholder_id
+                            attr_reader :limit = nil,
+                            attr_reader :precision = nil,
+                            attr_reader :scale = nil
+                        >,
+                        attr_reader :value_before_type_cast = nil
+                    >,
+                    attr_reader :name = "created_at",
+                    attr_reader :type = #<ActiveRecord::Type::DateTime:placeholder_id
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = "1992-10-10 12:30:00"
+                >,
+                        "id" => #<ActiveModel::Attribute::FromDatabase:placeholder_id
+                    @original_attribute = nil,
+                    attr_reader :name = "id",
+                    attr_reader :type = #<ActiveRecord::ConnectionAdapters::SQLite3Adapter::SQLite3Integer:placeholder_id
+                        @range = -9223372036854775808...9223372036854775808,
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = nil
+                >,
+                      "name" => #<ActiveModel::Attribute::FromUser:placeholder_id
+                    @original_attribute = #<ActiveModel::Attribute::FromDatabase:placeholder_id
+                        @original_attribute = nil,
+                        attr_reader :name = "name",
+                        attr_reader :type = #<ActiveModel::Type::String:placeholder_id
+                            attr_reader :limit = nil,
+                            attr_reader :precision = nil,
+                            attr_reader :scale = nil
+                        >,
+                        attr_reader :value_before_type_cast = nil
+                    >,
+                    attr_reader :name = "name",
+                    attr_reader :type = #<ActiveModel::Type::String:placeholder_id
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = "Diana"
+                >,
+                      "rank" => #<ActiveModel::Attribute::FromUser:placeholder_id
+                    @original_attribute = #<ActiveModel::Attribute::FromDatabase:placeholder_id
+                        @original_attribute = nil,
+                        attr_reader :name = "rank",
+                        attr_reader :type = #<ActiveRecord::ConnectionAdapters::SQLite3Adapter::SQLite3Integer:placeholder_id
+                            @range = -9223372036854775808...9223372036854775808,
+                            attr_reader :limit = nil,
+                            attr_reader :precision = nil,
+                            attr_reader :scale = nil
+                        >,
+                        attr_reader :value_before_type_cast = nil
+                    >,
+                    attr_reader :name = "rank",
+                    attr_reader :type = #<ActiveRecord::ConnectionAdapters::SQLite3Adapter::SQLite3Integer:placeholder_id
+                        @range = -9223372036854775808...9223372036854775808,
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = 1
+                >
+            }
+        >,
+        attr_accessor :destroyed_by_association = nil
+    >,
+    [1] #<User:placeholder_id
+        @_start_transaction_state = {},
+        @aggregation_cache = {},
+        @association_cache = {},
+        @destroyed = false,
+        @marked_for_destruction = false,
+        @new_record = true,
+        @readonly = false,
+        @transaction_state = nil,
+        attr_accessor :attributes = #<ActiveModel::AttributeSet:placeholder_id
+            @attributes = {
+                     "admin" => #<ActiveModel::Attribute::FromUser:placeholder_id
+                    @original_attribute = #<ActiveModel::Attribute::FromDatabase:placeholder_id
+                        @original_attribute = nil,
+                        attr_reader :name = "admin",
+                        attr_reader :type = #<ActiveModel::Type::Boolean:placeholder_id
+                            attr_reader :limit = nil,
+                            attr_reader :precision = nil,
+                            attr_reader :scale = nil
+                        >,
+                        attr_reader :value_before_type_cast = nil
+                    >,
+                    attr_reader :name = "admin",
+                    attr_reader :type = #<ActiveModel::Type::Boolean:placeholder_id
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = true
+                >,
+                "created_at" => #<ActiveModel::Attribute::FromUser:placeholder_id
+                    @original_attribute = #<ActiveModel::Attribute::FromDatabase:placeholder_id
+                        @original_attribute = nil,
+                        attr_reader :name = "created_at",
+                        attr_reader :type = #<ActiveRecord::Type::DateTime:placeholder_id
+                            attr_reader :limit = nil,
+                            attr_reader :precision = nil,
+                            attr_reader :scale = nil
+                        >,
+                        attr_reader :value_before_type_cast = nil
+                    >,
+                    attr_reader :name = "created_at",
+                    attr_reader :type = #<ActiveRecord::Type::DateTime:placeholder_id
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = "2003-05-26 14:15:00"
+                >,
+                        "id" => #<ActiveModel::Attribute::FromDatabase:placeholder_id
+                    @original_attribute = nil,
+                    attr_reader :name = "id",
+                    attr_reader :type = #<ActiveRecord::ConnectionAdapters::SQLite3Adapter::SQLite3Integer:placeholder_id
+                        @range = -9223372036854775808...9223372036854775808,
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = nil
+                >,
+                      "name" => #<ActiveModel::Attribute::FromUser:placeholder_id
+                    @original_attribute = #<ActiveModel::Attribute::FromDatabase:placeholder_id
+                        @original_attribute = nil,
+                        attr_reader :name = "name",
+                        attr_reader :type = #<ActiveModel::Type::String:placeholder_id
+                            attr_reader :limit = nil,
+                            attr_reader :precision = nil,
+                            attr_reader :scale = nil
+                        >,
+                        attr_reader :value_before_type_cast = nil
+                    >,
+                    attr_reader :name = "name",
+                    attr_reader :type = #<ActiveModel::Type::String:placeholder_id
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = "Laura"
+                >,
+                      "rank" => #<ActiveModel::Attribute::FromUser:placeholder_id
+                    @original_attribute = #<ActiveModel::Attribute::FromDatabase:placeholder_id
+                        @original_attribute = nil,
+                        attr_reader :name = "rank",
+                        attr_reader :type = #<ActiveRecord::ConnectionAdapters::SQLite3Adapter::SQLite3Integer:placeholder_id
+                            @range = -9223372036854775808...9223372036854775808,
+                            attr_reader :limit = nil,
+                            attr_reader :precision = nil,
+                            attr_reader :scale = nil
+                        >,
+                        attr_reader :value_before_type_cast = nil
+                    >,
+                    attr_reader :name = "rank",
+                    attr_reader :type = #<ActiveRecord::ConnectionAdapters::SQLite3Adapter::SQLite3Integer:placeholder_id
+                        @range = -9223372036854775808...9223372036854775808,
+                        attr_reader :limit = nil,
+                        attr_reader :precision = nil,
+                        attr_reader :scale = nil
+                    >,
+                    attr_reader :value_before_type_cast = 2
+                >
+            }
+        >,
+        attr_accessor :destroyed_by_association = nil
+    >
+]

spec/support/rails_versions.rb

@@ -3,6 +3,16 @@ module RailsVersions
     Gem::Version.new(Rails::VERSION::STRING)
   end
 
+  def rails_5_2?
+    Gem::Requirement.new('~> 5.2.0').satisfied_by?(rails_version)
+  end
+  alias_method :activerecord_5_2?, :rails_5_2?
+
+  def rails_5_1?
+    Gem::Requirement.new('~> 5.1.0').satisfied_by?(rails_version)
+  end
+  alias_method :activerecord_5_1?, :rails_5_1?
+
   def rails_5_0?
     Gem::Requirement.new('~> 5.0.0.racecar1').satisfied_by?(rails_version)
   end