Add mrproper and string spec

.travis.yml

@@ -1,3 +1,4 @@
+bundler_args: --without guard
 rvm:
   - 1.9.2
   - 1.9.3

Gemfile

@@ -2,9 +2,8 @@ source 'https://rubygems.org'
 
 gemspec
 
-group :development, :test do
-  group :darwin do
-    gem 'rb-fsevent'
-    gem 'growl'
-  end
+group :guard do
+  gem 'guard'
+  gem 'guard-cane'
+  gem 'guard-rspec'
 end

lib/string.rb

@@ -1,5 +1,7 @@
 class String
   def wrap(width)
+    width = 1 if width < 1
+
     split("\n").collect { |line|
       if line.length > width
         line.gsub(/(.{1,#{width}})(\s+|$)/, "\\1\n").strip

spec/lib/string_spec.rb

@@ -6,5 +6,24 @@
 
     it { string.wrap(1).should == "One\ntwo\nthree\nfour\nfive" }
     it { string.wrap(10).should == "One two\nthree four\nfive" }
+
+    context "when wrapping at 0" do
+      it "wraps at 1" do
+        string.wrap(0).should == "One\ntwo\nthree\nfour\nfive"
+      end
+    end
+  end
+end
+
+require 'mrproper'
+
+properties String do
+  data [String, Integer]
+
+  property '#wrap' do |string, wrap_at|
+    result = string.wrap(wrap_at)
+
+    assert_not_empty result
+    assert result.length == string.length
   end
 end

tp.gemspec

@@ -29,9 +29,7 @@ Gem::Specification.new do |gem|
   gem.add_dependency "thor", "~> 0.17"
 
   gem.add_development_dependency "cane"
-  gem.add_development_dependency "guard"
-  gem.add_development_dependency "guard-rspec"
-  gem.add_development_dependency "guard-cane"
+  gem.add_development_dependency "mrproper"
   gem.add_development_dependency "rake"
   gem.add_development_dependency "rspec"
   gem.add_development_dependency "simplecov" if RUBY_DESCRIPTION.start_with? "ruby"