Added #new, #run, and some accessors

Rakefile

@@ -20,15 +20,15 @@ end
 require 'rake/testtask'
 Rake::TestTask.new(:test) do |test|
   test.libs << 'lib' << 'test'
-  test.pattern = 'test/**/test_*.rb'
+  test.pattern = 'test/test_*.rb'
   test.verbose = true
 end
 
 begin
   require 'rcov/rcovtask'
   Rcov::RcovTask.new do |test|
     test.libs << 'test'
-    test.pattern = 'test/**/test_*.rb'
+    test.pattern = 'test/test_*.rb'
     test.verbose = true
   end
 rescue LoadError
@@ -52,5 +52,5 @@ Rake::RDocTask.new do |rdoc|
   rdoc.rdoc_dir = 'rdoc'
   rdoc.title = "autowatch #{version}"
   rdoc.rdoc_files.include('README*')
-  rdoc.rdoc_files.include('lib/**/*.rb')
+  rdoc.rdoc_files.include('lib/*.rb')
 end

lib/autowatch.rb

@@ -0,0 +1,46 @@
+class Autowatch
+  attr_writer :ruby, :include, :lib_dir, :test_dir
+
+  def initialize(options = {})
+    options.each_pair do |key, value|
+      method = "#{key}="
+      if self.respond_to?(method)
+        self.send(method, value)
+      end
+    end
+    yield self  if block_given?
+  end
+
+  def ruby
+    @ruby ||= "ruby"
+  end
+
+  def include
+    @include ||= ".:#{self.lib_dir}:#{self.test_dir}"
+  end
+
+  def lib_dir
+    @lib_dir ||= "lib"
+  end
+
+  def test_dir
+    @test_dir ||= "test"
+  end
+
+  def run(file)
+    if file =~ %r{^#{@lib_dir}#{File::SEPARATOR}?(.+)$}
+      # lib file
+      parts = $1.split(File::SEPARATOR)
+      parts[-1] = "test_#{parts[-1]}"
+      file = "#{@test_dir}/" + File.join(parts)
+    end
+    run_test_file(file)
+  end
+
+  private
+    def run_test_file(file)
+      cmd = "%s -I%s %s" % [ @ruby, @include, file ]
+      open("| #{cmd}", "r") do |f|
+      end
+    end
+end

test/fixtures/lib/foo.rb

@@ -0,0 +1,2 @@
+class Foo
+end

test/fixtures/results/foo.txt

@@ -0,0 +1,10 @@
+Loaded suite test/test_foo
+Started
+F.
+Finished in 0.000871 seconds.
+
+  1) Failure:
+test_flunk(TestFoo) [test/test_foo.rb:7]:
+Flunked.
+
+2 tests, 2 assertions, 1 failures, 0 errors

test/fixtures/test/helper.rb

@@ -0,0 +1 @@
+require 'test/unit'

test/fixtures/test/test_foo.rb

@@ -0,0 +1,11 @@
+require File.dirname(__FILE__) + "/helper"
+
+class TestFoo < Test::Unit::TestCase
+  def test_pass
+    assert true
+  end
+
+  def test_flunk
+    flunk
+  end
+end

test/helper.rb

@@ -1,10 +1,13 @@
 require 'rubygems'
 require 'test/unit'
-require 'shoulda'
+require 'mocha'
 
 $LOAD_PATH.unshift(File.join(File.dirname(__FILE__), '..', 'lib'))
 $LOAD_PATH.unshift(File.dirname(__FILE__))
 require 'autowatch'
 
 class Test::Unit::TestCase
+  def fake_result(name)
+    StringIO.new(open(File.dirname(__FILE__) + "/fixtures/results/#{name}.txt").read)
+  end
 end

test/test_autowatch.rb

@@ -1,7 +1,66 @@
 require 'helper'
 
 class TestAutowatch < Test::Unit::TestCase
-  should "probably rename this file and start testing for real" do
-    flunk "hey buddy, you should probably rename this file and start testing for real"
+  def new_autowatch(options = {})
+    Autowatch.new({
+      :ruby => "/usr/local/bin/ruby",
+      :include => ".:lib:test",
+      :lib_dir => @lib_dir,
+      :test_dir => @test_dir
+    }.merge(options))
+  end
+
+  def setup
+    @lib_dir = File.dirname(__FILE__) + "/fixtures/lib"
+    @test_dir = File.dirname(__FILE__) + "/fixtures/test"
+  end
+
+  def test_new_with_hash
+    aw = Autowatch.new({
+      :ruby => "/usr/local/bin/ruby",
+      :include => ".:lib:test"
+    })
+    assert_equal "/usr/local/bin/ruby", aw.ruby
+    assert_equal ".:lib:test", aw.include
+  end
+
+  def test_new_with_block
+    aw = Autowatch.new do |config|
+      config.ruby = "/usr/local/bin/ruby"
+      config.include = ".:lib:test"
+      config.lib_dir = @lib_dir
+      config.test_dir = @test_dir
+    end
+    assert_equal "/usr/local/bin/ruby", aw.ruby
+    assert_equal ".:lib:test", aw.include
+    assert_equal @lib_dir, aw.lib_dir
+    assert_equal @test_dir, aw.test_dir
+  end
+
+  def test_auto_includes
+    aw = Autowatch.new do |config|
+      config.ruby = "/usr/local/bin/ruby"
+      config.lib_dir = @lib_dir
+      config.test_dir = @test_dir
+    end
+    assert_equal ".:#{@lib_dir}:#{@test_dir}", aw.include
+  end
+
+  def test_defaults
+    aw = Autowatch.new
+    assert_equal "ruby", aw.ruby
+    assert_equal ".:lib:test", aw.include
+    assert_equal "lib", aw.lib_dir
+    assert_equal "test", aw.test_dir
+  end
+
+  def test_run_with_lib_file
+    aw = new_autowatch
+    result = fake_result("foo")
+    aw.expects(:open).with(
+      "| /usr/local/bin/ruby -I.:lib:test #{@test_dir}/test_foo.rb", "r"
+    ).yields(result)
+
+    aw.run("#{@lib_dir}/foo.rb")
   end
 end