Allow Controllers to have multiple view_paths instead of a single template_root. Closes #2754 [John Long]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@6120 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 78 insertions, 0 deletions

diff --git a/actionpack/test/controller/view_paths_test.rb b/actionpack/test/controller/view_paths_test.rb
new file mode 100644
index 0000000000..9184ab1793
--- /dev/null
+++ b/actionpack/test/controller/view_paths_test.rb
@@ -0,0 +1,78 @@
+require File.dirname(__FILE__) + '/../abstract_unit'
+
+class ViewLoadPathsTest < Test::Unit::TestCase
+  
+  LOAD_PATH_ROOT = File.join(File.dirname(__FILE__), '..', 'fixtures')
+
+  class TestController < ActionController::Base
+    def self.controller_path() "test" end
+    def rescue_action(e) raise end
+      
+    def hello_world() end
+  end
+  
+  def setup
+    TestController.view_paths = [ LOAD_PATH_ROOT ]
+    @controller = TestController.new
+    @request  = ActionController::TestRequest.new
+    @response = ActionController::TestResponse.new
+  
+    # Track the last warning.
+    @old_behavior = ActiveSupport::Deprecation.behavior
+    @last_message = nil
+    ActiveSupport::Deprecation.behavior = Proc.new { |message| @last_message = message }
+  end
+  
+  def teardown
+    ActiveSupport::Deprecation.behavior = @old_behavior
+  end
+  
+  def test_template_load_path_was_set_correctly
+    assert_equal [ LOAD_PATH_ROOT ], @controller.view_paths
+  end
+  
+  def test_view_paths
+    get :hello_world
+    assert_response :success
+    assert_equal "Hello world!", @response.body
+  end
+  
+  def test_view_paths_override
+    TestController.view_paths.unshift "#{LOAD_PATH_ROOT}/override"
+    get :hello_world
+    assert_response :success
+    assert_equal "Hello overridden world!", @response.body
+  end
+  
+  def test_template_root_deprecated
+    assert_deprecated(/template_root.*view_paths/) do
+      TestController.template_root = LOAD_PATH_ROOT
+    end
+    assert_deprecated(/template_root.*view_paths/) do
+      assert_equal LOAD_PATH_ROOT, TestController.template_root
+    end
+  end
+  
+  def test_inheritance
+    original_load_paths = ActionController::Base.view_paths
+    
+    self.class.class_eval %{
+      class A < ActionController::Base; end
+      class B < A; end
+      class C < ActionController::Base; end
+    }
+  
+    A.view_paths = [ 'a/path' ]
+    
+    assert_equal [ 'a/path' ],        A.view_paths
+    assert_equal A.view_paths,   B.view_paths
+    assert_equal original_load_paths, C.view_paths
+    
+    e = assert_raises(TypeError) { C.view_paths << 'c/path' }
+    assert_equal "can't modify frozen array", e.message
+    
+    C.view_paths = []
+    assert_nothing_raised { C.view_paths << 'c/path' }
+  end
+  
+end
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