1 files changed, 50 insertions, 0 deletions
diff --git a/railties/test/generators/generator_test.rb b/railties/test/generators/generator_test.rb
new file mode 100644
index 0000000000..7600a40ae9
--- /dev/null
+++ b/railties/test/generators/generator_test.rb
@@ -0,0 +1,50 @@
+require 'active_support/test_case'
+require 'active_support/testing/autorun'
+require 'rails/generators/app_base'
+
+module Rails
+  module Generators
+    class GeneratorTest < ActiveSupport::TestCase
+      def make_builder_class
+        klass = Class.new(AppBase) do
+          add_shared_options_for "application"
+
+          # include a module to get around thor's method_added hook
+          include(Module.new {
+            def gemfile_entries; super; end
+            def invoke_all; super; self; end
+            def add_gem_entry_filter; super; end
+          })
+        end
+      end
+
+      def test_construction
+        klass     = make_builder_class
+        assert klass.start(['new', 'blah'])
+      end
+
+      def test_filter
+        klass     = make_builder_class
+        generator = klass.start(['new', 'blah'])
+        gems      = generator.gemfile_entries
+        generator.add_gem_entry_filter { |gem|
+          gem.name != gems.first.name
+        }
+        assert_equal gems.drop(1), generator.gemfile_entries
+      end
+
+      def test_two_filters
+        klass     = make_builder_class
+        generator = klass.start(['new', 'blah'])
+        gems      = generator.gemfile_entries
+        generator.add_gem_entry_filter { |gem|
+          gem.name != gems.first.name
+        }
+        generator.add_gem_entry_filter { |gem|
+          gem.name != gems[1].name
+        }
+        assert_equal gems.drop(2), generator.gemfile_entries
+      end
+    end
+  end
+end