1 files changed, 24 insertions, 0 deletions
diff --git a/spec/ruby/optional/capi/string_spec.rb b/spec/ruby/optional/capi/string_spec.rb
index 35a6fd1c92..7c33b79348 100644
--- a/spec/ruby/optional/capi/string_spec.rb
+++ b/spec/ruby/optional/capi/string_spec.rb
@@ -218,6 +218,20 @@ describe "C-API String function" do
     end
   end
 
+  describe "rb_usascii_str_new_lit" do
+    it "returns a US-ASCII string of the correct characters" do
+      str = @s.rb_usascii_str_new_lit
+      str.should == "nokogiri"
+      str.encoding.should == Encoding::US_ASCII
+    end
+
+    it "returns US-ASCII string for non-US-ASCII string literal" do
+      str = @s.rb_usascii_str_new_lit_non_ascii
+      str.should == "r\xC3\xA9sum\xC3\xA9".force_encoding(Encoding::US_ASCII)
+      str.encoding.should == Encoding::US_ASCII
+    end
+  end
+
   describe "rb_usascii_str_new_cstr" do
     it "creates a new String with US-ASCII Encoding" do
       str = "abc".force_encoding("us-ascii")
@@ -392,6 +406,16 @@ describe "C-API String function" do
     end
   end
 
+  describe "rb_enc_str_buf_cat" do
+    it "concatenates a C string literal to a ruby string with the given encoding" do
+      input = "hello ".force_encoding(Encoding::US_ASCII)
+      result = @s.rb_enc_str_buf_cat(input, "résumé", Encoding::UTF_8)
+      result.should == "hello résumé"
+      result.encoding.should == Encoding::UTF_8
+      result.object_id.should == input.object_id
+    end
+  end
+
   describe "rb_str_cmp" do
     it "returns 0 if two strings are identical" do
       @s.rb_str_cmp("ppp", "ppp").should == 0