Add extention to obtain the missing constant from NameError instances

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@4679 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 27 insertions, 0 deletions

diff --git a/activesupport/test/core_ext/name_error_test.rb b/activesupport/test/core_ext/name_error_test.rb
new file mode 100644
index 0000000000..13910d2e01
--- /dev/null
+++ b/activesupport/test/core_ext/name_error_test.rb
@@ -0,0 +1,27 @@
+require 'test/unit'
+require File.dirname(__FILE__) + '/../../lib/active_support/core_ext/name_error'
+
+class NameErrorTest < Test::Unit::TestCase
+  
+  def test_name_error_should_set_missing_name
+    begin
+      SomeNameThatNobodyWillUse____Really ? 1 : 0
+      flunk "?!?!"
+    rescue NameError => exc
+      assert_equal "SomeNameThatNobodyWillUse____Really", exc.missing_name
+      assert exc.missing_name?(:SomeNameThatNobodyWillUse____Really)
+      assert exc.missing_name?("SomeNameThatNobodyWillUse____Really")
+    end
+  end
+  
+  def test_missing_method_should_ignore_missing_name
+    begin
+      some_method_that_does_not_exist
+      flunk "?!?!"
+    rescue NameError => exc
+      assert_equal nil, exc.missing_name
+      assert ! exc.missing_name?(:Foo)
+    end
+  end
+  
+end