1 files changed, 23 insertions, 0 deletions
diff --git a/spec/ruby/library/cgi/queryextension/keys_spec.rb b/spec/ruby/library/cgi/queryextension/keys_spec.rb
new file mode 100644
index 0000000000..bb16914065
--- /dev/null
+++ b/spec/ruby/library/cgi/queryextension/keys_spec.rb
@@ -0,0 +1,23 @@
+require_relative '../../../spec_helper'
+
+ruby_version_is ""..."4.0" do
+  require 'cgi'
+
+  describe "CGI::QueryExtension#keys" do
+    before :each do
+      ENV['REQUEST_METHOD'], @old_request_method = "GET", ENV['REQUEST_METHOD']
+      ENV['QUERY_STRING'], @old_query_string = "one=a&two=b", ENV['QUERY_STRING']
+
+      @cgi = CGI.new
+    end
+
+    after :each do
+      ENV['REQUEST_METHOD'] = @old_request_method
+      ENV['QUERY_STRING']   = @old_query_string
+    end
+
+    it "returns all parameter keys as an Array" do
+      @cgi.keys.sort.should == ["one", "two"]
+    end
+  end
+end