plugin_test.rb in radiant-0.6.5

- old
+ new
@@ -1,111 +1,141 @@
-$:.unshift File.dirname(__FILE__) + "/../lib"
-$:.unshift File.dirname(__FILE__) + "/../../activesupport/lib"
+require File.dirname(__FILE__) + '/plugin_test_helper'
 
-require 'test/unit'
-require 'active_support'
-require 'initializer'
+uses_mocha "Plugin Tests" do
 
-unless defined?(RAILS_ROOT)
-  module Rails
-    class Initializer
-      RAILS_ROOT = '.'
+  class PluginTest < Test::Unit::TestCase
+
+    def setup
+      @initializer       = Rails::Initializer.new(Rails::Configuration.new)
+      @valid_plugin_path = plugin_fixture_path('default/stubby')
+      @empty_plugin_path = plugin_fixture_path('default/empty')    
     end
-  end
-end
 
-class PluginTest < Test::Unit::TestCase
-  class TestConfig < Rails::Configuration
-    protected
-      def root_path
-        File.dirname(__FILE__)
-      end
-  end
+    def test_should_determine_plugin_name_from_the_directory_of_the_plugin
+      assert_equal 'stubby', plugin_for(@valid_plugin_path).name
+      assert_equal 'empty', plugin_for(@empty_plugin_path).name
+    end
 
-  def setup
-    @init = Rails::Initializer.new(TestConfig.new)
-  end
+    def test_should_not_be_loaded_when_created
+      assert !plugin_for(@valid_plugin_path).loaded?
+    end
 
-  def test_plugin_path?
-    assert @init.send(:plugin_path?, "#{File.dirname(__FILE__)}/fixtures/plugins/default/stubby")
-    assert !@init.send(:plugin_path?, "#{File.dirname(__FILE__)}/fixtures/plugins/default/empty")
-    assert !@init.send(:plugin_path?, "#{File.dirname(__FILE__)}/fixtures/plugins/default/jalskdjflkas")
-  end
-
-  def test_find_plugins
-    base    = "#{File.dirname(__FILE__)}/fixtures/plugins"
-    default = "#{base}/default"
-    alt     = "#{base}/alternate"
-    acts    = "#{default}/acts"
-    assert_equal ["#{acts}/acts_as_chunky_bacon"], @init.send(:find_plugins, acts)
-    assert_equal ["#{acts}/acts_as_chunky_bacon", "#{default}/stubby"], @init.send(:find_plugins, default).sort
-    assert_equal ["#{alt}/a", "#{acts}/acts_as_chunky_bacon", "#{default}/stubby"], @init.send(:find_plugins, base).sort
-  end
-
-  def test_load_plugin
-    stubby = "#{File.dirname(__FILE__)}/fixtures/plugins/default/stubby"
-    expected = ['stubby']
-
-    assert @init.send(:load_plugin, stubby)
-    assert_equal expected, @init.loaded_plugins
-
-    assert !@init.send(:load_plugin, stubby)
-    assert_equal expected, @init.loaded_plugins
-
-    assert_raise(LoadError) { @init.send(:load_plugin, 'lakjsdfkasljdf') }
-    assert_equal expected, @init.loaded_plugins
-  end
-
-  def test_load_default_plugins
-    assert_loaded_plugins %w(stubby acts_as_chunky_bacon), 'default'
-  end
-
-  def test_load_alternate_plugins
-    assert_loaded_plugins %w(a), 'alternate'
-  end
-
-  def test_load_plugins_from_two_sources
-    assert_loaded_plugins %w(a stubby acts_as_chunky_bacon), ['default', 'alternate']
-  end
- 
-  def test_load_all_plugins_when_config_plugins_is_nil
-    @init.configuration.plugins = nil
-    assert_loaded_plugins %w(a stubby acts_as_chunky_bacon), ['default', 'alternate']
-  end
-
-  def test_load_no_plugins_when_config_plugins_is_empty_array
-    @init.configuration.plugins = []
-    assert_loaded_plugins [], ['default', 'alternate']   
-  end
- 
-  def test_load_only_selected_plugins
-    plugins = %w(stubby a)
-    @init.configuration.plugins = plugins
-    assert_loaded_plugins plugins, ['default', 'alternate']
-  end
- 
-  def test_load_plugins_in_order
-    plugins = %w(stubby acts_as_chunky_bacon a)
-    @init.configuration.plugins = plugins
-    assert_plugin_load_order plugins, ['default', 'alternate']
-  end
-
-  def test_raise_error_when_plugin_not_found
-    @init.configuration.plugins = %w(this_plugin_does_not_exist)
-    assert_raise(LoadError) { load_plugins(['default', 'alternate']) }
-  end
+    def test_should_be_marked_as_loaded_when_load_is_called
+      plugin = plugin_for(@valid_plugin_path)
+      assert !plugin.loaded?
+      plugin.stubs(:evaluate_init_rb)
+      assert_nothing_raised do
+        plugin.send(:load, anything)
+      end
+      assert plugin.loaded?
+    end
   
-  protected
-    def assert_loaded_plugins(plugins, paths)
-      assert_equal plugins.sort, load_plugins(paths).sort
+    def test_should_determine_validity_of_given_path
+      # This is a plugin path, with a lib dir
+      assert plugin_for(@valid_plugin_path).valid?
+      # This just has an init.rb and no lib dir
+      assert plugin_for(plugin_fixture_path('default/plugin_with_no_lib_dir')).valid?
+      # This would be a plugin path, but the directory is empty
+      assert !plugin_for(plugin_fixture_path('default/empty')).valid?
+      # This is a non sense path
+      assert !plugin_for(plugin_fixture_path('default/this_directory_does_not_exist')).valid?
     end
+  
+    def test_should_return_empty_array_for_load_paths_when_plugin_has_no_lib_directory
+      assert_equal [], plugin_for(plugin_fixture_path('default/plugin_with_no_lib_dir')).load_paths
+    end
+  
+    def test_should_return_array_with_lib_path_for_load_paths_when_plugin_has_a_lib_directory
+      expected_lib_dir = File.join(plugin_fixture_path('default/stubby'), 'lib')
+      assert_equal [expected_lib_dir], plugin_for(plugin_fixture_path('default/stubby')).load_paths
+    end
+  
+    def test_should_raise_a_load_error_when_trying_to_determine_the_load_paths_from_an_invalid_plugin
+      assert_nothing_raised do
+        plugin_for(@valid_plugin_path).load_paths
+      end
     
-    def assert_plugin_load_order(plugins, paths)
-      assert_equal plugins, load_plugins(paths)
+      assert_raises(LoadError) do
+        plugin_for(@empty_plugin_path).load_paths
+      end
+    
+      assert_raises(LoadError) do
+        plugin_for('this_is_not_a_plugin_directory').load_paths
+      end
     end
-
-    def load_plugins(*paths)
-      @init.configuration.plugin_paths = paths.flatten.map { |p| "#{File.dirname(__FILE__)}/fixtures/plugins/#{p}" }
-      @init.load_plugins
-      @init.loaded_plugins
+  
+    def test_should_raise_a_load_error_when_trying_to_load_an_invalid_plugin
+      # This path is fine so nothing is raised
+      assert_nothing_raised do
+        plugin = plugin_for(@valid_plugin_path)
+        plugin.stubs(:evaluate_init_rb)
+        plugin.send(:load, @initializer)
+      end
+    
+      # This is an empty path so it raises
+      assert_raises(LoadError) do
+        plugin = plugin_for(@empty_plugin_path)
+        plugin.stubs(:evaluate_init_rb)      
+        plugin.send(:load, @initializer)
+      end
+    
+      assert_raises(LoadError) do
+        plugin = plugin_for('this_is_not_a_plugin_directory')
+        plugin.stubs(:evaluate_init_rb)
+        plugin.send(:load, @initializer)
+      end
     end
-end
+    
+    def test_should_raise_a_load_error_when_trying_to_access_load_paths_of_an_invalid_plugin
+      # This path is fine so nothing is raised
+      assert_nothing_raised do
+        plugin_for(@valid_plugin_path).load_paths
+      end
+    
+      # This is an empty path so it raises
+      assert_raises(LoadError) do
+        plugin_for(@empty_plugin_path).load_paths
+      end
+    
+      assert_raises(LoadError) do
+        plugin_for('this_is_not_a_plugin_directory').load_paths
+      end
+    end    
+  
+    def test_loading_a_plugin_gives_the_init_file_access_to_all_it_needs
+      failure_tip = "Perhaps someone has written another test that loads this same plugin and therefore makes the StubbyMixin constant defined already."
+      assert !defined?(StubbyMixin), failure_tip
+      plugin = plugin_for(@valid_plugin_path)
+      plugin.load_paths.each { |path| $LOAD_PATH.unshift(path) }
+      # The init.rb of this plugin raises if it doesn't have access to all the things it needs
+      assert_nothing_raised do
+        plugin.load(@initializer)
+      end
+      assert defined?(StubbyMixin)
+    end
+    
+    def test_should_sort_naturally_by_name
+      a = plugin_for("path/a")
+      b = plugin_for("path/b")
+      z = plugin_for("path/z")
+      assert_equal [a, b, z], [b, z, a].sort
+    end
+    
+    def test_should_only_be_loaded_once
+      plugin = plugin_for(@valid_plugin_path)
+      assert !plugin.loaded?
+      plugin.expects(:evaluate_init_rb)
+      assert_nothing_raised do
+        plugin.send(:load, @initializer)
+        plugin.send(:load, @initializer)
+      end
+      assert plugin.loaded?
+    end
+  
+    private
+  
+      def plugin_for(path)
+        Rails::Plugin.new(path)
+      end
+  end
+
+end # uses_mocha
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