Add unit tests.

Rakefile

@@ -0,0 +1,8 @@
+require 'rake'
+require 'rake/testtask'
+
+Rake::TestTask.new do |t|
+  t.test_files = %w(test/twine_test.rb)
+end
+
+task :default => :test

test/fixtures/en-1.strings

@@ -0,0 +1,10 @@
+/**
+ * iOS Strings File
+ * Generated by Twine
+ * Language: en
+ */
+
+/* My Strings */
+"key1" = "key1-english";
+"key3" = "key3-english";
+"key5" = "A new string";

test/fixtures/fr-1.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Android Strings File -->
+<!-- Generated by Twine -->
+<!-- Language: fr -->
+<resources>
+	<string name="key1">key1-french</string>
+	<string name="key2">key2-french</string>
+	<string name="key3">key3-french</string>
+</resources>

test/fixtures/strings-1.txt

@@ -0,0 +1,16 @@
+[[My Strings]]
+	[key1]
+		en = key1-english
+		tags = tag1
+		es = key1-spanish
+		fr = key1-french
+	[key2]
+		en = key2-english
+		tags = tag2
+		fr = key2-french
+	[key3]
+		en = key3-english
+		tags = tag1,tag2
+		es = key3-spanish
+	[key4]
+		en = key4-english

test/fixtures/test-output-1.txt

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Android Strings File -->
+<!-- Generated by Twine -->
+<!-- Language: fr -->
+<resources>
+	<!-- My Strings -->
+	<string name="key1">key1-french</string>
+	<string name="key2">key2-french</string>
+	<string name="key3">key3-english</string>
+</resources>

test/fixtures/test-output-2.txt

@@ -0,0 +1,9 @@
+/**
+ * iOS Strings File
+ * Generated by Twine
+ * Language: en
+ */
+
+/* My Strings */
+"key1" = "key1-english";
+"key3" = "key3-english";

test/fixtures/test-output-3.txt

@@ -0,0 +1,17 @@
+[[My Strings]]
+	[key1]
+		en = key1-english
+		tags = tag1
+		es = key1-spanish
+		fr = key1-french
+	[key2]
+		en = key2-english
+		tags = tag2
+		fr = key2-french
+	[key3]
+		en = key3-english
+		tags = tag1,tag2
+		es = key3-spanish
+		fr = key3-french
+	[key4]
+		en = key4-english

test/fixtures/test-output-4.txt

@@ -0,0 +1,20 @@
+[[Uncategorized]]
+	[key5]
+		en = A new string
+
+[[My Strings]]
+	[key1]
+		en = key1-english
+		tags = tag1
+		es = key1-spanish
+		fr = key1-french
+	[key2]
+		en = key2-english
+		tags = tag2
+		fr = key2-french
+	[key3]
+		en = key3-english
+		tags = tag1,tag2
+		es = key3-spanish
+	[key4]
+		en = key4-english

test/twine_test.rb

@@ -0,0 +1,40 @@
+require 'test/unit'
+require 'twine'
+
+class TwineTest < Test::Unit::TestCase
+  def test_generate_string_file_1
+    Dir.mktmpdir do |dir|
+      output_path = File.join(dir, 'fr.xml')
+      Twine::Runner.run(%W(generate-string-file test/fixtures/strings-1.txt #{output_path}))
+      assert_equal(File.read('test/fixtures/test-output-1.txt'), File.read(output_path))
+    end
+  end
+
+  def test_generate_string_file_2
+    Dir.mktmpdir do |dir|
+      output_path = File.join(dir, 'en.strings')
+      Twine::Runner.run(%W(generate-string-file test/fixtures/strings-1.txt #{output_path} -t tag1))
+      assert_equal(File.read('test/fixtures/test-output-2.txt'), File.read(output_path))
+    end
+  end
+
+  def test_consume_string_file_1
+    Dir.mktmpdir do |dir|
+      output_path = File.join(dir, 'strings.txt')
+      Twine::Runner.run(%W(consume-string-file test/fixtures/strings-1.txt test/fixtures/fr-1.xml -o #{output_path} -l fr))
+      assert_equal(File.read('test/fixtures/test-output-3.txt'), File.read(output_path))
+    end
+  end
+
+  def test_consume_string_file_2
+    Dir.mktmpdir do |dir|
+      output_path = File.join(dir, 'strings.txt')
+      Twine::Runner.run(%W(consume-string-file test/fixtures/strings-1.txt test/fixtures/en-1.strings -o #{output_path} -l en -a))
+      assert_equal(File.read('test/fixtures/test-output-4.txt'), File.read(output_path))
+    end
+  end
+  
+  def test_generate_report_1
+    Twine::Runner.run(%w(generate-report test/fixtures/strings-1.txt))
+  end
+end

twine.gemspec

@@ -15,7 +15,9 @@ Gem::Specification.new do |s|
   s.files       += Dir.glob("lib/**/*")
   s.files       += Dir.glob("bin/**/*")
 
+  s.required_ruby_version = ">= 1.8.7"
   s.add_runtime_dependency('rubyzip', "~> 0.9.5")
+  s.add_development_dependency('rake', "~> 0.9.2")
 
   s.executables  = %w( twine )
   s.description  = <<desc