zeisler/active_mocker

Generate mocks from ActiveRecord models for unit tests that run fast because they don’t need to load Rails or a database.

active_mocker's Issues

Mock Generation Fails when there is no ActiveRecord::Base class

In config/initializers/active_mocker.rb

 ActiveMocker.configure do |config|
   config.model_base_classes = %w[ ActiveRecord::Base ]
 end

If a model has a base class that still behaves like ActiveRecord but doesn't directly inherit from it add it
to the model_base_classes array.

This is on master branch, test it out and see if there are any edge cases.

Constant values assigned to non sudo primitives objects

class UserMock < ActiveMocker::Base
  RELATION = #<User ...>
end

When values are sudo primitives objects calling #inspect results in syntacticly correct assignment, but in many cases calling #inspect will not result in a correct assignment.

Possible solution when it is not a string, a number, or other printable object then replace it with a string "ActiveMocker can not determine the value, if needed stub this const with a valid test value"

missing forwardable dependency

with ruby 2.5.5 I am getting errors as follows:

Failure/Error: require "active_mocker/rspec_helper"

NameError:
  uninitialized constant #<Class:ActiveMocker::LoadedMocks>::Forwardable
# ./spec/spec_helper.rb:11:in `require'
# ./spec/spec_helper.rb:11:in `<top (required)>'
# ./spec/rails_helper.rb:3:in `require'
# ./spec/rails_helper.rb:3:in `<top (required)>'
# ./spec/requests/updates_spec.rb:1:in `require'
# ./spec/requests/updates_spec.rb:1:in `<top (required)>'

when running bundle exec rspec. It seems like the forwardable gem is missing from the Gemfile/.gemspec?

ruby -e "require 'rspec';require 'active_mocker/rspec_helper'" fails with

Traceback (most recent call last):
	10: from -e:1:in `<main>'
	 9: from /Users/svanzoest/.rbenv/versions/2.5.5/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:39:in `require'
	 8: from /Users/svanzoest/.rbenv/versions/2.5.5/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:135:in `rescue in require'
	 7: from /Users/svanzoest/.rbenv/versions/2.5.5/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:135:in `require'
	 6: from /Users/svanzoest/.rbenv/versions/2.5.5/lib/ruby/gems/2.5.0/gems/active_mocker-2.6.0/lib/active_mocker/rspec_helper.rb:2:in `<top (required)>'
	 5: from /Users/svanzoest/.rbenv/versions/2.5.5/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:70:in `require'
	 4: from /Users/svanzoest/.rbenv/versions/2.5.5/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:70:in `require'
	 3: from /Users/svanzoest/.rbenv/versions/2.5.5/lib/ruby/gems/2.5.0/gems/active_mocker-2.6.0/lib/active_mocker/loaded_mocks.rb:4:in `<top (required)>'
	 2: from /Users/svanzoest/.rbenv/versions/2.5.5/lib/ruby/gems/2.5.0/gems/active_mocker-2.6.0/lib/active_mocker/loaded_mocks.rb:5:in `<module:ActiveMocker>'
	 1: from /Users/svanzoest/.rbenv/versions/2.5.5/lib/ruby/gems/2.5.0/gems/active_mocker-2.6.0/lib/active_mocker/loaded_mocks.rb:6:in `<class:LoadedMocks>'
/Users/svanzoest/.rbenv/versions/2.5.5/lib/ruby/gems/2.5.0/gems/active_mocker-2.6.0/lib/active_mocker/loaded_mocks.rb:7:in `singleton class': uninitialized constant #<Class:ActiveMocker::LoadedMocks>::Forwardable (NameError)

Adding forwardable seems to fix it.
ruby -e "require 'forwardable';require 'rspec';require 'active_mocker/rspec_helper'"

Some mechanism for ignoring DSL code in classes

We have a bunch of classes failing to be generated due to using state_machine and liquid_methods. Both of which provide class level methods to the model class body.

Perhaps there could be a config file for various settings, including skipping over specific class methods in AR class definitions?

I can't imagine how support for something like a state machine gem would be easy and so we will probably just skip using active_mocker for any specs that fail due to that.

Happy to work on a PR for this, if you think it makes sense?

Or do you have any other ideas for an approach that would work?

Enable use of alias_method_chain on Relations

Sorry for lack of test isolation case so far. This is on latest master of active_mocker.

In a class Foo with some_aliased_method aliased, a stack trace like this results

undefined method `some_aliased_method' for class `#<Module:0x007fb502d53c98>::Foo'
/Users/markburns/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/activesupport-4.2.6/lib/active_support/core_ext/module/aliasing.rb:32:in `alias_method'
/Users/markburns/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/activesupport-4.2.6/lib/active_support/core_ext/module/aliasing.rb:32:in `alias_method_chain'
/Users/markburns/code/some_rails_app/app/models/foo.rb:337:in `<class:Foo>'
/Users/markburns/code/some_rails_app/app/models/foo.rb:1:in `call'
/Users/markburns/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/dissociated_introspection-0.4.1/lib/dissociated_introspection/eval_sandbox.rb:13:in `module_eval'
/Users/markburns/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/dissociated_introspection-0.4.1/lib/dissociated_introspection/eval_sandbox.rb:13:in `call'
/Users/markburns/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/dissociated_introspection-0.4.1/lib/dissociated_introspection/inspection.rb:90:in `load_sandbox'
/Users/markburns/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/dissociated_introspection-0.4.1/lib/dissociated_introspection/inspection.rb:86:in `get_sandbox_class'
/Users/markburns/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/dissociated_introspection-0.4.1/lib/dissociated_introspection/inspection.rb:15:in `get_class'
/Users/markburns/code/active_mocker/lib/active_mocker/mock_creator.rb:132:in `constants'
(erb):2:in `block in partials'

Nested models Dirs will not generate

Only root level models will generate. Should generate all models no matter nesting.

has_one relations are read only

Found case where creating a mock would allow the setting of a has_one relationship. Couldn't find the rails docs for this, but in rails it looks it works as a read only attribute and is not settable. Needs further research and feedback.

Using a default value for decimal data types results in a failing mock class generated in 2.2.3 and a mock class syntax error in version 2.0.0

A table using a default value for a decimal column results in an error when building mock files. I tested this by creating a new rails app with the following schema:

create_table "test_data", force: :cascade do |t|
    t.datetime "created_at",                                                                         null: false
    t.datetime "updated_at",                                                                         null: false
    t.decimal  "decimal_default_neg",                        precision: 19, scale: 6, default: -1.0
    t.decimal  "decimal_default_pos",                        precision: 19, scale: 6, default: 1.0
    t.decimal  "decimal_no_default",                         precision: 19, scale: 6
    t.decimal  "decimal_no_precision_no_scale_with_default",                          default: 1.0
    t.integer  "integer_default_neg",                                                 default: -1
    t.integer  "integer_default_pos",                                                 default: 2
end

On active_mocker v 2.2.3, running rake_active_mocker:buildwith verbosity 3 results in the following: (full stack trace omitted)

TestDatum has the following errors:
unexpected token kEND
warn
unexpected token kEND
/Users/john/.rvm/gems/ruby-2.1.7/gems/parser-2.3.1.2/lib/parser/diagnostic/engine.rb:71:in `process'

Parser::SyntaxError
Error Summary
errors: 0, warn: 1, info: 0
Failed models: TestDatum
1 mock(s) out of 1 failed.

Downgrading to version 2.0.0 results in a successfully generated mock class. However, the #attributes method is partially commented out due to #<BigDecimal> being inserted as a value for decimal attributes, resulting in a syntax error.

def attributes
  @attributes ||= HashWithIndifferentAccess.new({"id"=>nil, "created_at"=>nil, "updated_at"=>nil, "decimal_default_neg"=>#<BigDecimal:7fde7db90ab0,'-0.1E1',9(18)>, "decimal_default_pos"=>#<BigDecimal:7fde7dbc3f50,'0.1E1',9(18)>, "decimal_no_default"=>nil, "decimal_no_precision_no_scale_with_default"=>#<BigDecimal:7fde7dbc32d0,'0.1E1',9(18)>, "integer_default_neg"=>-1, "integer_default_pos"=>2}).merge(super)
end

I'm trying to upgrade from 1.8.3, and the mock file generated will correctly show the value in this version:

def attributes
  @attributes ||= HashWithIndifferentAccess.new({"id"=>nil, "created_at"=>nil, "updated_at"=>nil, "decimal_default_neg"=>-1.0, "decimal_default_pos"=>1.0, "decimal_no_default"=>nil, "decimal_no_precision_no_scale_with_default"=>1.0, "integer_default_neg"=>-1, "integer_default_pos"=>2}).merge(super)
end

Breaks when `has_many` has a custom scope :-(

Something similar to:

  has_many :posts, -> { order('created_at DESC') }

Give me back a:

E, [2014-10-14T17:10:34.358111 #1562] ERROR -- : Error loading Model: SOME_MODEL
    undefined method `each_pair' for #<Proc:0x007f6f91671ff8@/workspace/SOME_MODEL.rb:4 (lambda)>

I tried looking around the codebase to see if I could be of any help but time ran out. To reproduce the issue with the current specs, just change this line to:

has_many :users, -> { order('created_at DESC') } 

If you need any other information just LMK!

Ignore modules

Usage of modules results in e.g.

SomeNamespace::SomeModule has the following errors:
undefined method `to_a' for false:FalseClass
Did you mean?  to_yaml
               to_param
               to_s
warn
undefined method `to_a' for false:FalseClass
Did you mean?  to_yaml
               to_param
               to_s

Getting "ActiveMocker.safe_methods is unable to find methods: __missing_class_macros__" error for ruby 2.5.5

I am getting ActiveMocker.safe_methods is unable to find methods: __missing_class_macros__ error when try to run rake task rake active_mocker:build with ruby version 2.5.5

It's working fine with old version of ruby (2.4.5)

When calling a has_many assocation the scoped methods are not there.

Add rails scoped methods to association. For example User.posts.newest would not work.

Correctly Support many through

has_many :decision_mortgages
has_many :credit_liabilities, through: :decision_mortgages

ActiveMocker treats credit_liabilities as an association on the parent model and ignores the through.

The work around is

Model.new(credit_liabilities: credit_liabilities)

It should work like:

Model.new(decision_mortgages: [DecisionMortgage.new(credit_liability: CreditLiability.create)])

Support first_or_create on collection

From what I have seen Collection, Relations and Scopes don't currently support the first_or_create method.

I'm doing a workaround for now, but wanted to make a note of the issue so I don't forget to give proper repro steps.

ActiveMocker deletes entire hard disk

ActiveMocker has a very critical problem:
https://github.com/zeisler/active_mocker/blob/master/lib/active_mocker/generate.rb#L104
We can't yet reproduce how exactly this happened, but somehow in the above line Config.mock_dir was nil or "" which caused ActiveMocker to delete everything it could under the root partition!

Calling update on a record should call save as well.

ActiveRecord Code

# Updates the attributes of the model from the passed-in hash and saves the
    # record, all wrapped in a transaction. If the object is invalid, the saving
    # will fail and false will be returned.
def update(attributes)
      # The following transaction covers any possible database side-effects of the
      # attributes assignment. For example, setting the IDs of a child collection
  with_transaction_returning_status do
    assign_attributes(attributes)
    save
  end
end

ActiveMocker::Base Code

def update(attributes = {})
  assign_attributes(attributes)
end

Calling update should save the record if it was not already persisted.

Support polymorphic associations

Usage of polymorphic associations results in an exception

e.g.

Missing model Bar for association Foo.belongs_to :bar, polymorphic: true

Test Gem against different versions of rails

Looking for pull request for someone to implement this gem: https://github.com/thoughtbot/appraisal

I want to test with rails 4.1, 4.0 and maybe 3.x if it works.

Research Optimizations

Provide benchmarks of specific uses cases.

Can't generate mocks for rails Concerns

I'm using active_mocker version 2.1.3. I ran rake active_mocker:build for all of my models, and the two concerns I have failed to get mocked.

One concern, called RecordChanges is used by a model called Booking. The top of my generated file booking_mock.rb looks like the following:

require("active_mocker/mock")
class BookingMock < ActiveMocker::Base
  created_with("2.1.3")
  # _modules_constants.erb
  prepend(RecordChanges)  # OFFENDING LINE
  #_class_methods.erb
  class << self
  ... # more code here

The mention of RecordChanges causes the error:

Unable to autoload constant Concerns::RecordChanges, expected ~/myproj/app/models/concerns/record_changes.rb to define it

Even though it's declared right there:

# app/models/concerns/record_changes.rb
module RecordChanges
  extend ActiveSupport::Concern
  # ...
end

Why is active_mocker having such a hard time auto-loading / generating mocks out of concerns? I've managed to generate mocks just fine for other models.

Failed models: Concerns::Approval, Concerns::RecordChanges
2 mock(s) out of 21 failed.
To see more/less detail set error_verbosity = 0, 1, 2, 3

Improve Documentation

Looking for support in documenting useful things, both in the readme and in the code.

If you find value in the project please consider giving back to the community.

A created record that is modified persists changes without calling #save

Fix this limitation.

A record that has been created and then is modified will persist changes without calling #save.

mock_instance/class_method block argument only takes local variables.

When using Rspec and mocking a method:
let(:display_name){ "First, Last Name"}

User.mock_instance_method(:display_name){ display_name }

display name is not in scope, to make it work the let must be saved to a local variable. This is unexpected and would be better if the scope local to the block creation location.

Mocks presist after model is deleted

This is a regression from 2.1

Let mocks be a better reference of DB schema

def name
  get_with_type(:name, String)
end

Something like this where the name and type can be easily seen when looking at the mocks.

Fall back for specific database types

Postgresql has JSON, Hstore and there are others that are not supported. Currently if you try to generate a mock from model that is not part of the common types the generation fails. I would like to make an AnyType that would be a fallback. Also provide a way so that a user could extend the types to add their own custom types.

Generator fails for STI models

I'm seeing this issue when running the generator:

NoMethodError: undefined method `get_named_scopes' for #<Class:0x00000108b8e0f8>
~/.rvm/gems/ruby-2.1.0@gemset/gems/activerecord-4.1.1/lib/active_record/dynamic_matchers.rb:26:in `method_missing'
~/.rvm/gems/ruby-2.1.0@gemset/bundler/gems/active_mocker-2cf8101aebc2/lib/active_mocker/model_reader.rb:61:in `scopes'
~/.rvm/gems/ruby-2.1.0@gemset/bundler/gems/active_mocker-2cf8101aebc2/lib/active_mocker/model_reader.rb:65:in `scopes_with_arguments'
~/.rvm/gems/ruby-2.1.0@gemset/bundler/gems/active_mocker-2cf8101aebc2/lib/active_mocker/model_schema/generate.rb:80:in `build_methods'
~/.rvm/gems/ruby-2.1.0@gemset/bundler/gems/active_mocker-2cf8101aebc2/lib/active_mocker/model_schema/generate.rb:50:in `block in run'
~/.rvm/gems/ruby-2.1.0@gemset/bundler/gems/active_mocker-2cf8101aebc2/lib/active_mocker/model_schema/generate.rb:36:in `map'
~/.rvm/gems/ruby-2.1.0@gemset/bundler/gems/active_mocker-2cf8101aebc2/lib/active_mocker/model_schema/generate.rb:36:in `run'
~/.rvm/gems/ruby-2.1.0@gemset/bundler/gems/active_mocker-2cf8101aebc2/lib/active_mocker/generate.rb:43:in `generate_model_schema'
~/.rvm/gems/ruby-2.1.0@gemset/bundler/gems/active_mocker-2cf8101aebc2/lib/active_mocker/generate.rb:66:in `create_template'
~/.rvm/gems/ruby-2.1.0@gemset/bundler/gems/active_mocker-2cf8101aebc2/lib/active_mocker/generate.rb:23:in `initialize'
~/.rvm/gems/ruby-2.1.0@gemset/bundler/gems/active_mocker-2cf8101aebc2/lib/active_mocker/task.rake:4:in `new'
~/.rvm/gems/ruby-2.1.0@gemset/bundler/gems/active_mocker-2cf8101aebc2/lib/active_mocker/task.rake:4:in `block (2 levels) in <top (required)>'
~/.rvm/gems/ruby-2.1.0@gemset/bin/ruby_executable_hooks:15:in `eval'
~/.rvm/gems/ruby-2.1.0@gemset/bin/ruby_executable_hooks:15:in `<main>'

The model in question is setup with single-table inheritance and looks like this:

class ParentModel < ActiveRecord::Base
  # has a `type` column in DB
end

class ChildModel < ParentModel

end

The generator fails while processing ChildModel.

Minitest support?

Hello, this looks like an awesome project. Our test base is incredibly slow, probably because of all the DB calls. I would like to integrate this tool, but ... we use minitest. Is it possible to use this with minitest?

Ignore Non AR subclasses

I've been trying to get an isolated failing spec for this, but I don't quite fully understand the code and specs of this project yet.

If we have Foo and that inherits from top level class Bar then I'd rather not see any errors or warnings like:

Foo does not inherit from ActiveRecord::Base
Bar is missing a parent class.

Missing schema information on a non abstract model does not fail.

undefined method `colorize' for "superclass must be a Class (Module given)":String

On latest master we have the following exception when running bundle exec rake active_mocker:build. Which makes me think there is maybe not enough test coverage.

NoMethodError: undefined method `colorize' for "superclass must be a Class (Module given)":String
/Users/markburns/code/active_mocker/lib/active_mocker/display_errors.rb:36:in `block in display_errors'
/Users/markburns/code/active_mocker/lib/active_mocker/display_errors.rb:32:in `each'
/Users/markburns/code/active_mocker/lib/active_mocker/display_errors.rb:32:in `display_errors'
/Users/markburns/code/active_mocker/lib/active_mocker/generate.rb:26:in `call'
/Users/markburns/code/active_mocker/lib/active_mocker/public_methods.rb:31:in `create_mocks'
/Users/markburns/code/active_mocker/lib/active_mocker/task.rake:12:in `block (2 levels) in <top (required)>'

Generator fails for abstract classes

Thanks for this gem! I'd love to try it out but I'm running into a problem right out of the gate with rake active_mocker:build:

rake aborted!cks |>>                                    
NoMethodError: undefined method `fields' for nil:NilClass
~/.rvm/gems/ruby-2.1.0@gemset/gems/active_mocker-1.6.2/lib/active_mocker/model_schema/generate.rb:41:in `block in run'
~/.rvm/gems/ruby-2.1.0@gemset/gems/active_mocker-1.6.2/lib/active_mocker/model_schema/generate.rb:36:in `map'
~/.rvm/gems/ruby-2.1.0@gemset/gems/active_mocker-1.6.2/lib/active_mocker/model_schema/generate.rb:36:in `run'
~/.rvm/gems/ruby-2.1.0@gemset/gems/active_mocker-1.6.2/lib/active_mocker/generate.rb:43:in `generate_model_schema'
~/.rvm/gems/ruby-2.1.0@gemset/gems/active_mocker-1.6.2/lib/active_mocker/generate.rb:66:in `create_template'
~/.rvm/gems/ruby-2.1.0@gemset/gems/active_mocker-1.6.2/lib/active_mocker/generate.rb:23:in `initialize'
~/.rvm/gems/ruby-2.1.0@gemset/gems/active_mocker-1.6.2/lib/active_mocker/task.rake:4:in `new'
~/.rvm/gems/ruby-2.1.0@gemset/gems/active_mocker-1.6.2/lib/active_mocker/task.rake:4:in `block (2 levels) in <top (required)>'
~/.rvm/gems/ruby-2.1.0@gemset/bin/ruby_executable_hooks:15:in `eval'
~/.rvm/gems/ruby-2.1.0@gemset/bin/ruby_executable_hooks:15:in `<main>'

Seems like the problem is that the class in question isn't backed by a database table, such as:

class ApplicationModel < ActiveRecord::Base
  self.abstract_class = true
end

Poking around, it looks like there is a check in get_table to see if the table is nil, but run still assumes that the table is there. I imagine this might also cause problems with models that use single-table inheritance, which I also have in my project but haven't had a chance to test yet.

I'd be happy to contribute a PR if that would help! 😃

ruby version requirement

README says: Requires Ruby MRI =< 2.1.
bundler says: Gem::InstallError: active_mocker requires Ruby version >= 2.1.0.

Integration with Factorygirl

Hello,

I would like to ask if there are any future plans to integrate active_mocker with factorygirl?

Feedback on adding a pass through select method.

I am considering this in the next release. I feel a little hesitant because it could lead to some production code bugs. For example User.select(:name).first.email will raise an error in ActiveRecord but it would work in ActiveMocker. I considered making it work the same but the complexity is high because the record/object would need to look up to it's owner and see what methods it can emit, but records can be owned by many collections.

# Warning Use method at own risk!
# Method will pass through to the next chained method. The attributes not selected will be available and ActiveRecord
# would raise 'missing attribute' error, while ActiveMocker will not.
#
#   User.select(:name, :email) => User
#
def self.select(*args)
  self
end

Copy across attr_accessors and cattr_accessors

I believe that attr_accessor definitions are not defined in the mocks so maybe this is an oversight?

Less warnings when generating for mixed model and non model files.

Sample output

Generating Mocks |========================================================>>| 100%
Error Summary
errors: 1, warn: 5, info: 0
Failed models: ReportParser::UnderwritingData::ApplicationRecord
96 mock(s) out of 98 failed.
To see more/less detail set error_verbosity = 0, 1, 2, 3

Build task assumes schema.rb

:(

Error message "To see more/less detail set error_verbosity = 0, 1, 2, 3" very unclear. How do you set error_verbosity with rake?

Being a Ruby newcomer it'd be nice to know the EXACT rake syntax I need to get verbose messages, so that I can understand why active_mocker is tripping up.

e.g. I just tried rake error_verbosity=3 active_mocker:build with no avail

Calling scoped method that has not been stubbed raises incorrect error.

TypeError: backtrace must be Array of String
/Users/zeisler/.rvm/gems/ruby-2.1.5/gems/active_mocker-1.8.3/lib/active_mocker/mock/mock_abilities.rb:30:in set_backtrace' /Users/zeisler/.rvm/gems/ruby-2.1.5/gems/active_mocker-1.8.3/lib/active_mocker/mock/mock_abilities.rb:30:inraise'
/Users/zeisler/.rvm/gems/ruby-2.1.5/gems/active_mocker-1.8.3/lib/active_mocker/mock/mock_abilities.rb:30:in is_implemented' /Users/zeisler/.rvm/gems/ruby-2.1.5/gems/active_mocker-1.8.3/lib/active_mocker/mock/mock_abilities.rb:60:incall_mock_method'

module Scopes
    include ActiveMocker::Mock::Base::Scopes

    def primary_fees(chapter_type)
      ActiveMocker::LoadedMocks.find('_').send(:call_mock_method, '_', chapter_type)
    end

This Api was not updated when primary stub methods were changed. Here df4dea9#diff-88dfa03d28830b0a291f1e9d53fc343a

Create an API for custom relation collections

This would use the private api of ::new_relation on a mock. The reason this is private is because I don't want to provide a method that could be used in production code that won't work with ActiveRecord. If someone knows of a good way to do this with the AR api let me know, I would like to copy it when ever I can.

ActiveMocker::Mock.relation(mock: UserMock, collection: [UserMock.new, UserMock.new])

This is helpful when stubbing out sets of queries without having to deal with the global state of a mock. Other advantages would be that this would be thread safe, as the global store is not. This lets you do stuff like run your test in parallel.

Models in a NameSpace won't generate

Doesn't works with db/structure.sql

Doesn't works with db/structure.sql instead of db/schema.rb

rake active_mocker:build

rake aborted!cks |>>                                                                                               | 0%
NoMethodError: undefined method `class_name' for #<Errno::ENOENT:0x007f4af1480e48>

Errno::ENOENT: No such file or directory @ rb_sysopen - /home/myproject/db/schema.rb

Tasks: TOP => active_mocker:build
(See full trace by running task with --trace)

Parser seems to throw up on regexp

I realize this isn't the parser library, but it's happening with the usage of this gem.

Superclass mismatch

This class results in a superclass mismatch error:

class SomeNamespace::SomeClass < ActiveRecord::Base
  self.table_name = 'some_convenient_name'
end

SomeClass has the following errors:
superclass mismatch for class SomeClass
error
superclass mismatch for class SomeClass
/Users/markburns/code/some_rails_app/app/models/some_namespace/some_class.rb:1:in `call'
/Users/markburns/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/dissociated_introspection-0.4.1/lib/dissociated_introspection/eval_sandbox.rb:13:in `module_eval'
/Users/markburns/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/dissociated_introspection-0.4.1/lib/dissociated_introspection/eval_sandbox.rb:13:in `call'
/Users/markburns/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/dissociated_introspection-0.4.1/lib/dissociated_introspection/inspection.rb:90:in `load_sandbox'
/Users/markburns/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/dissociated_introspection-0.4.1/lib/dissociated_introspection/inspection.rb:86:in `get_sandbox_class'
/Users/markburns/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/dissociated_introspection-0.4.1/lib/dissociated_introspection/inspection.rb:15:in `get_class'
/Users/markburns/code/active_mocker/lib/active_mocker/mock_creator.rb:132:in `constants'
(erb):2:in `block in partials'

ModelSchema::Assemble only examines files in root of configured directory.

It would be great to load and mock all classes under app/models/some/path/to/my_model.rb.

Be more optimistic with rake dependency (rake 11)

In the active_mocker.gemspec:

spec.add_runtime_dependency "rake", "~> 10.0"`

is too restrictive. I'm having to downgrade rake from v11 just to use the latest version of active_mocker.

active_mocker appears to break with rails 4.2.1

After upgrading to rails 4.2.1, active_mocker:build completes fine, however the generated files do not execute. I have attempted to fork, pull, investigate however my limited rails knowledge has prevented me from getting too far.

/home/krimsonkla/Candi/spec/mocks/access_token_mock.rb:175: syntax error, unexpected end-of-input, expecting keyword_end
from /home/krimsonkla/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:274:in block in require' from /home/krimsonkla/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:240:inload_dependency'
from /home/krimsonkla/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:274:in require' from /home/krimsonkla/Candi/spec/spec_helper.rb:25:inblock in <top (required)>'
from /home/krimsonkla/Candi/spec/spec_helper.rb:25:in each' from /home/krimsonkla/Candi/spec/spec_helper.rb:25:in<top (required)>'
from /home/krimsonkla/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:274:in require' from /home/krimsonkla/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:274:inblock in require'
from /home/krimsonkla/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:240:in load_dependency' from /home/krimsonkla/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:274:inrequire'
from /home/krimsonkla/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/configuration.rb:1181:in block in requires=' from /home/krimsonkla/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/configuration.rb:1181:ineach'
from /home/krimsonkla/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/configuration.rb:1181:in requires=' from /home/krimsonkla/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/configuration_options.rb:110:inblock in process_options_into'
from /home/krimsonkla/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/configuration_options.rb:109:in each' from /home/krimsonkla/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/configuration_options.rb:109:inprocess_options_into'
from /home/krimsonkla/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/configuration_options.rb:22:in configure' from /home/krimsonkla/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/runner.rb:96:insetup'
from /home/krimsonkla/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/runner.rb:85:in run' from /home/krimsonkla/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/runner.rb:70:inrun'
from /home/krimsonkla/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/runner.rb:38:in invoke' from /home/krimsonkla/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/exe/rspec:4:in<top (required)>'
from /home/krimsonkla/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:268:in load' from /home/krimsonkla/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:268:inblock in load'
from /home/krimsonkla/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:240:in load_dependency' from /home/krimsonkla/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:268:inload'
from /home/krimsonkla/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/spring-commands-rspec-1.0.4/lib/spring/commands/rspec.rb:18:in call' from /home/krimsonkla/.rbenv/versions/2.2.1/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:inrequire'
from /home/krimsonkla/.rbenv/versions/2.2.1/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in require' from -e:1:in

'

Database type 'jsonb' is not a registered type. To register use ActiveRecordSchemaScrapper::Attributes.register_type(name: :jsonb, klass: <RubyClass>)

1. Postgres jsonb type => Hash

Let's say I have a schema.rb that declares a posts table thusly:

  create_table 'vehicle', force: :cascade do |t|
    # ...
    t.jsonb "vehicle_info", default: {}
  end

Here's the error I get when I try rake active_mocker:build:

Database type 'jsonb' is not a registered type.
To register use ActiveRecordSchemaScrapper::Attributes.register_type(name: :jsonb, klass: <RubyClass>)

It's not clear to me where I'm supposed to put ActiveRecordSchemaScrapper::Attributes.register_type(name: :jsonb, klass: <RubyClass>). I think it's active_mocker's job to register these data types prior to trying to scrape schema.rb.

2. Postgres inet type => IPAddr

I have in my schema.rb a field t.inet "current_sign_in_ip".

Naturally, I wanted to map inet to IPAddr (see section 1.10).

I added the following

# active_mocker.rb
ActiveRecordSchemaScrapper::Attributes.register_type(name: :inet, klass: IPAddr)

The mock gets generated, but when I use it in my tests the generated code:

    def types
      @types ||= ActiveMocker::HashProcess.new({ id: Fixnum, email: String, encrypted_password: String, reset_password_token: String, reset_password_sent_at: DateTime, remember_created_at: DateTime, sign_in_count: Fixnum, current_sign_in_at: DateTime, last_sign_in_at: DateTime, current_sign_in_ip: IPAddr, last_sign_in_ip: IPAddr, created_at: DateTime, updated_at: DateTime, first_name: String, last_name: String, phone: String, address1: String, address2: String, postcode: String, state: String, approval_notes: String, role: String, image: String, public_page_id: String, county: String, gender: String, title: String, town: String, city_id: Fixnum, deposit_pence: Fixnum, referral_code: String, authentication_token: String, national_insurance: String, current_mode: String, dvla_points: Fixnum, accident_3_years: Axiom::Types::Boolean, motoring_5_years: Axiom::Types::Boolean, criminal_5_years: Axiom::Types::Boolean, refused_insurance: Axiom::Types::Boolean, special_conditions_notes: String, on_drover_fleet_policy: Axiom::Types::Boolean, uk_resident_since: Date, notes: String, date_of_birth: Date }, method(:build_type)).merge(super)
    end

... gives me a

NameError: uninitialized constant Class::IPAddr

i.e. generated mock is missing a require 'ipaddr'

Project name

You may want to change the project name to follow http://xunitpatterns.com/Test%20Double%20Patterns.html

The word "mock" implies to run some verification at some point ( expect(mock).to receive(:method).

Looking at the README, it sounds like you have built a library to build fake active record models. I suggest something like active_record_doubles.