Added :env option for gem in template runner [#1983 state:resolved]

For installing gems that are only needed in the test environment, specify the :env option so the dependency is written to config/environments/test.rb:

    gem 'rspec', :env => 'test'
    gem 'quietbacktrace', :env => %w[development test]

Signed-off-by: Pratik Naik <pratiknaik@gmail.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/railties/test/generators/rails_template_runner_test.rb b/railties/test/generators/rails_template_runner_test.rb
index 56afc85eba..4e1937e0c6 100644
--- a/railties/test/generators/rails_template_runner_test.rb
+++ b/railties/test/generators/rails_template_runner_test.rb
@@ -82,6 +82,17 @@ class RailsTemplateRunnerTest < GeneratorTestCase
     assert_rails_initializer_includes("config.gem 'mislav-will-paginate', :lib => 'will-paginate', :source => 'http://gems.github.com'")
   end
 
+  def test_gem_with_env_string_should_put_gem_dependency_in_specified_environment
+    run_template_method(:gem, 'rspec', :env => 'test')
+    assert_generated_file_with_data('config/environments/test.rb', "config.gem 'rspec'", 'test')
+  end
+
+  def test_gem_with_env_array_should_put_gem_dependency_in_specified_environments
+    run_template_method(:gem, 'quietbacktrace', :env => %w[ development test ])
+    assert_generated_file_with_data('config/environments/development.rb', "config.gem 'quietbacktrace'")
+    assert_generated_file_with_data('config/environments/test.rb', "config.gem 'quietbacktrace'")
+  end
+
   def test_environment_should_include_data_in_environment_initializer_block
     load_paths = 'config.load_paths += %w["#{RAILS_ROOT}/app/extras"]'
     run_template_method(:environment, load_paths)