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Testing Numeric Field Type Implementation in rails_admin

This test suite validates the numeric field type implementation in RailsAdmin, focusing on integer field handling and input rendering. The tests ensure proper configuration and behavior of numeric fields within the RailsAdmin framework.

Test Coverage Overview

The test suite provides comprehensive coverage of the RailsAdmin numeric field type functionality.

Key areas tested include:

Generic field type behavior for integer fields
Field configuration and detection
View helper implementation for numeric inputs

Implementation Analysis

The testing approach utilizes RSpec’s shared examples pattern to validate common field type behaviors. The implementation focuses on field type configuration and view helper verification, ensuring consistent numeric input handling across the application.

Technical implementation includes:

Shared behavior testing with it_behaves_like
Subject configuration testing
View helper validation

Technical Details

Testing tools and setup:

RSpec testing framework
RailsAdmin configuration framework
Field type testing utilities
Shared example implementations

Best Practices Demonstrated

The test suite exemplifies several testing best practices in Ruby and RSpec.

Notable practices include:

Use of shared examples for DRY testing
Proper subject configuration
Focused, single-responsibility test cases
Clear expectation declarations

railsadminteam/rails_admin

spec/rails_admin/config/fields/types/numeric_spec.rb

            
# frozen_string_literal: true

require 'spec_helper'

RSpec.describe RailsAdmin::Config::Fields::Types::Numeric do
  it_behaves_like 'a generic field type', :integer_field, :integer

  subject do
    RailsAdmin.config('FieldTest').fields.detect do |f|
      f.name == :integer_field
    end.with(object: FieldTest.new)
  end

  describe '#view_helper' do
    it "uses the 'number' type input tag" do
      expect(subject.view_helper).to eq(:number_field)
    end
  end
end