Contents

# encoding: utf-8

require 'spec_helper'

describe SQL::Generator::Visitor, '.handler_for' do
  subject { object.handler_for(visitable_class) }

  let(:object) { Class.new(SQL::Generator::Visitor) }

  before :all do
    module ::MySpec
      class Visitable; end
    end
  end

  after :all do
    MySpec.class_eval { remove_const(:Visitable) }
    Object.class_eval { remove_const(:MySpec)    }
  end

  context 'with an object handled by a public method' do
    let(:visitable_class) { MySpec::Visitable }

    before do
      object.class_eval do
        remove_instance_variable(:@handlers) if instance_variable_defined?(:@handlers)
        define_method(:visit_my_spec_visitable) {}
      end
    end

    after do
      object.class_eval do
        remove_instance_variable(:@handlers)
        remove_method(:visit_my_spec_visitable)
      end
    end

    it_should_behave_like 'an idempotent method'

    it { should == :visit_my_spec_visitable }
  end

  context 'with an object handled by a private method' do
    let(:visitable_class) { MySpec::Visitable }

    before do
      object.class_eval do
        remove_instance_variable(:@handlers) if instance_variable_defined?(:@handlers)
        define_method(:visit_my_spec_visitable) {}
        private :visit_my_spec_visitable
      end
    end

    after do
      object.class_eval do
        remove_instance_variable(:@handlers)
        remove_method(:visit_my_spec_visitable)
      end
    end

    it_should_behave_like 'an idempotent method'

    it { should == :visit_my_spec_visitable }
  end

  context 'with an unhandled object' do
    let(:visitable_class) { Class.new }

    specify { expect { subject }.to raise_error(object::UnknownObject, "No handler for #{visitable_class} in #{object}") }
  end
end

Version data entries

7 entries across 7 versions & 2 rubygems

Version	Path
axiom-sql-generator-0.2.0	spec/unit/axiom/sql/generator/visitor/class_methods/handler_for_spec.rb
axiom-sql-generator-0.1.0	spec/unit/axiom/sql/generator/visitor/class_methods/handler_for_spec.rb
veritas-sql-generator-0.0.7	spec/unit/veritas/sql/generator/visitor/class_methods/handler_for_spec.rb
veritas-sql-generator-0.0.6	spec/unit/veritas/sql/generator/visitor/class_methods/handler_for_spec.rb
veritas-sql-generator-0.0.5	spec/unit/veritas/sql/generator/visitor/class_methods/handler_for_spec.rb
veritas-sql-generator-0.0.4	spec/unit/veritas/sql/generator/visitor/class_methods/handler_for_spec.rb
veritas-sql-generator-0.0.3	spec/unit/veritas/sql/generator/visitor/class_methods/handler_for_spec.rb