From db045dbbf60b53dbe013ef25554fd013baf88134 Mon Sep 17 00:00:00 2001
From: David Heinemeier Hansson <david@loudthinking.com>
Date: Wed, 24 Nov 2004 01:04:44 +0000
Subject: Initial

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@4 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
---
 actionpack/test/controller/helper_test.rb | 110 ++++++++++++++++++++++++++++++
 1 file changed, 110 insertions(+)
 create mode 100644 actionpack/test/controller/helper_test.rb

(limited to 'actionpack/test/controller/helper_test.rb')

diff --git a/actionpack/test/controller/helper_test.rb b/actionpack/test/controller/helper_test.rb
new file mode 100644
index 0000000000..9d1da53241
--- /dev/null
+++ b/actionpack/test/controller/helper_test.rb
@@ -0,0 +1,110 @@
+require File.dirname(__FILE__) + '/../abstract_unit'
+
+class HelperTest < Test::Unit::TestCase
+  HELPER_PATHS = %w(/../fixtures/helpers)
+
+  class TestController < ActionController::Base
+    attr_accessor :delegate_attr
+    def delegate_method() end
+    def rescue_action(e) raise end
+  end
+
+  module LocalAbcHelper
+    def a() end
+    def b() end
+    def c() end
+  end
+
+
+  def setup
+    # Increment symbol counter.
+    @symbol = (@@counter ||= 'A0').succ!.dup
+
+    # Generate new controller class.
+    controller_class_name = "Helper#{@symbol}Controller"
+    eval("class #{controller_class_name} < TestController; end")
+    @controller_class = self.class.const_get(controller_class_name)
+
+    # Generate new template class and assign to controller.
+    template_class_name = "Test#{@symbol}View"
+    eval("class #{template_class_name} < ActionView::Base; end")
+    @template_class = self.class.const_get(template_class_name)
+    @controller_class.template_class = @template_class
+
+    # Add helper paths to LOAD_PATH.
+    HELPER_PATHS.each { |path|
+      $LOAD_PATH.unshift(File.dirname(__FILE__) + path)
+    }
+
+    # Set default test helper.
+    self.test_helper = LocalAbcHelper
+  end
+
+  def teardown
+    # Reset template class.
+    #ActionController::Base.template_class = ActionView::Base
+
+    # Remove helper paths from LOAD_PATH.
+    HELPER_PATHS.each { |path|
+      $LOAD_PATH.delete(File.dirname(__FILE__) + path)
+    }
+  end
+
+
+  def test_deprecated_helper
+    assert_equal helper_methods, missing_methods
+    assert_nothing_raised { @controller_class.helper TestHelper }
+    assert_equal [], missing_methods
+  end
+
+  def test_declare_helper
+    require 'abc_helper'
+    self.test_helper = AbcHelper
+    assert_equal helper_methods, missing_methods
+    assert_nothing_raised { @controller_class.helper :abc }
+    assert_equal [], missing_methods
+  end
+
+  def test_declare_missing_helper
+    assert_equal helper_methods, missing_methods
+    assert_raise(LoadError) { @controller_class.helper :missing }
+  end
+
+  def test_helper_block
+    assert_nothing_raised {
+      @controller_class.helper { def block_helper_method; end }
+    }
+    assert template_methods.include?('block_helper_method')
+  end
+
+  def test_helper_block_include
+    assert_equal helper_methods, missing_methods
+    assert_nothing_raised {
+      @controller_class.helper { include TestHelper }
+    }
+    assert [], missing_methods
+  end
+
+  def test_helper_method
+    assert_nothing_raised { @controller_class.helper_method :delegate_method }
+    assert template_methods.include?('delegate_method')
+  end
+
+  def test_helper_attr
+    assert_nothing_raised { @controller_class.helper_attr :delegate_attr }
+    assert template_methods.include?('delegate_attr')
+    assert template_methods.include?('delegate_attr=')
+  end
+
+
+  private
+    def helper_methods;   TestHelper.instance_methods      end
+    def template_methods; @template_class.instance_methods  end
+    def missing_methods;  helper_methods - template_methods end
+
+    def test_helper=(helper_module)
+      old_verbose, $VERBOSE = $VERBOSE, nil
+      self.class.const_set('TestHelper', helper_module)
+      $VERBOSE = old_verbose
+    end
+end
\ No newline at end of file
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