1 files changed, 32 insertions, 0 deletions
diff --git a/spec/ruby/library/net-http/httpheader/sub_type_spec.rb b/spec/ruby/library/net-http/httpheader/sub_type_spec.rb
new file mode 100644
index 0000000000..b39b57fe8d
--- /dev/null
+++ b/spec/ruby/library/net-http/httpheader/sub_type_spec.rb
@@ -0,0 +1,32 @@
+require_relative '../../../spec_helper'
+require 'net/http'
+require_relative 'fixtures/classes'
+
+describe "Net::HTTPHeader#sub_type" do
+  before :each do
+    @headers = NetHTTPHeaderSpecs::Example.new
+  end
+
+  it "returns the 'sub-content-type', as per 'Content-Type' header entry" do
+    @headers["Content-Type"] = "text/html"
+    @headers.sub_type.should == "html"
+
+    @headers["Content-Type"] = "application/pdf"
+    @headers.sub_type.should == "pdf"
+
+    @headers["Content-Type"] = "text/html;charset=utf-8"
+    @headers.sub_type.should == "html"
+  end
+
+  it "returns nil if no 'sub-content-type' is set" do
+    @headers["Content-Type"] = "text"
+    @headers.sub_type.should be_nil
+
+    @headers["Content-Type"] = "text;charset=utf-8"
+    @headers.sub_type.should be_nil
+  end
+
+  it "returns nil if the 'Content-Type' header entry does not exist" do
+    @headers.sub_type.should be_nil
+  end
+end