Add class method specs extracted from extlib

* Mark failed ones as pending as I dunno correct result now.

.rspec

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+--color

spec/unit/inflector/class_methods/camelize_spec.rb

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+require 'spec_helper'
+
+describe Inflector do
+  describe '.camelize' do
+    it 'camelizes data_mapper as DataMapper' do
+      Inflector.camelize('data_mapper').should == 'DataMapper'
+    end
+
+    it 'camelizes merb as Merb' do
+      Inflector.camelize('merb').should == 'Merb'
+    end
+
+    it 'camelizes data_mapper/resource as DataMapper::Resource' do
+      Inflector.camelize('data_mapper/resource').should == 'DataMapper::Resource'
+    end
+
+    it 'camelizes data_mapper/associations/one_to_many as DataMapper::Associations::OneToMany' do
+      Inflector.camelize('data_mapper/associations/one_to_many').should == 'DataMapper::Associations::OneToMany'
+    end
+  end
+end

spec/unit/inflector/class_methods/classify_spec.rb

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+require 'spec_helper'
+
+describe Inflector do
+  describe '.classify' do
+    it 'classifies data_mapper as DataMapper' do
+      Inflector.classify('data_mapper').should == 'DataMapper'
+    end
+
+    pending 'classifies enlarged_testes as EnlargedTestis' do
+      Inflector.classify('enlarged_testes').should == 'EnlargedTestis'
+    end
+
+    pending 'singularizes string first: classifies data_mappers as egg_and_hams as EggAndHam' do
+      Inflector.classify('egg_and_hams').should == 'EggAndHam'
+    end
+  end
+end

spec/unit/inflector/class_methods/demodulize_spec.rb

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+require 'spec_helper'
+
+describe Inflector do
+  describe '.demodulize' do
+    it 'demodulizes module name: DataMapper::Inflector => Inflector' do
+      Inflector.demodulize('DataMapper::Inflector').should == 'Inflector'
+    end
+
+    it 'demodulizes module name: A::B::C::D::E => E' do
+      Inflector.demodulize('A::B::C::D::E').should == 'E'
+    end
+  end
+end

spec/unit/inflector/class_methods/foreign_key_spec.rb

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+require 'spec_helper'
+
+describe Inflector do
+  describe '.foreign_key' do
+    it 'adds _id to downcased string: Message => message_id' do
+      Inflector.foreign_key('Message').should == 'message_id'
+    end
+
+    it 'demodulizes string first: Admin::Post => post_id' do
+      Inflector.foreign_key('Admin::Post').should == 'post_id'
+    end
+  end
+end

spec/unit/inflector/class_methods/humanize_spec.rb

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+require 'spec_helper'
+
+describe Inflector do
+  describe '.humanize' do
+    it 'replaces _ with space: humanizes employee_salary as Employee salary' do
+      Inflector.humanize('employee_salary').should == 'Employee salary'
+    end
+
+    it 'strips _id endings: humanizes author_id as Author' do
+      Inflector.humanize('author_id').should == 'Author'
+    end
+  end
+end
+

spec/unit/inflector/class_methods/tabelize_spec.rb

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+require 'spec_helper'
+
+describe Inflector do
+  pending '.tableize' do
+    it 'pluralizes last word in snake_case strings: fancy_category => fancy_categories' do
+      Inflector.tableize('fancy_category').should == 'fancy_categories'
+    end
+
+    it 'underscores CamelCase strings before pluralization: enlarged_testis => enlarged_testes' do
+      Inflector.tableize('enlarged_testis').should == 'enlarged_testes'
+    end
+
+    it 'underscores CamelCase strings before pluralization: FancyCategory => fancy_categories' do
+      Inflector.tableize('FancyCategory').should == 'fancy_categories'
+    end
+
+    it 'underscores CamelCase strings before pluralization: EnlargedTestis => enlarged_testes' do
+      Inflector.tableize('EnlargedTestis').should == 'enlarged_testes'
+    end
+
+    it 'replaces :: with underscores: Fancy::Category => fancy_categories' do
+      Inflector.tableize('Fancy::Category').should == 'fancy_categories'
+    end
+
+    it 'underscores CamelCase strings before pluralization: Enlarged::Testis => enlarged_testes' do
+      Inflector.tableize('Enlarged::Testis').should == 'enlarged_testes'
+    end
+  end
+end

spec/unit/inflector/class_methods/underscore_spec.rb

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+require 'spec_helper'
+
+describe Inflector do
+  describe '.underscore' do
+    it 'underscores DataMapper as data_mapper' do
+      Inflector.underscore('DataMapper').should == 'data_mapper'
+    end
+
+    it 'underscores Merb as merb' do
+      Inflector.underscore('Merb').should == 'merb'
+    end
+
+    it 'underscores DataMapper::Resource as data_mapper/resource' do
+      Inflector.underscore('DataMapper::Resource').should == 'data_mapper/resource'
+    end
+
+    it 'underscores Merb::BootLoader::Rackup as merb/boot_loader/rackup' do
+      Inflector.underscore('Merb::BootLoader::Rackup').should == 'merb/boot_loader/rackup'
+    end
+  end
+end