ext: ensure headers#each in response is valid

We're not Rack::Lint, but we still need to take steps to
avoid segfaulting if we host non-Rack::Lint-compliant
applications.

This also updates the pure variant to fail on bad applications,
too.

1 files changed, 7 insertions, 0 deletions

diff --git a/test/test_clogger.rb b/test/test_clogger.rb
index d2121da..9cb494a 100644
--- a/test/test_clogger.rb
+++ b/test/test_clogger.rb
@@ -373,4 +373,11 @@ class TestClogger < Test::Unit::TestCase
     assert_match %r{#{e}$}m, str
   end
 
+  def test_broken_header_response
+    str = StringIO.new
+    app = lambda { |env| [302, [ %w(a) ], []] }
+    cl = Clogger.new(app, :logger => str, :format => '$sent_http_set_cookie')
+    assert_raise(TypeError) { cl.call(@req) }
+  end
+
 end