1 files changed, 19 insertions, 0 deletions
diff --git a/spec/ruby/optional/capi/kernel_spec.rb b/spec/ruby/optional/capi/kernel_spec.rb
index d1e3e03582..54d8d8a8d3 100644
--- a/spec/ruby/optional/capi/kernel_spec.rb
+++ b/spec/ruby/optional/capi/kernel_spec.rb
@@ -504,6 +504,25 @@ describe "C-API Kernel function" do
     end
   end
 
+  describe "rb_eval_cmd_kw" do
+    it "evaluates a string of ruby code" do
+      @s.rb_eval_cmd_kw("1+1", [], 0).should == 2
+    end
+
+    it "calls a proc with the supplied arguments" do
+      @s.rb_eval_cmd_kw(-> *x { x.map { |i| i + 1 } }, [1, 3, 7], 0).should == [2, 4, 8]
+    end
+
+    it "calls a proc with keyword arguments if kw_splat is non zero" do
+      a_proc = -> *x, **y {
+        res = x.map { |i| i + 1 }
+        y.each { |k, v| res << k; res << v }
+        res
+      }
+      @s.rb_eval_cmd_kw(a_proc, [1, 3, 7, {a: 1, b: 2, c: 3}], 1).should == [2, 4, 8, :a, 1, :b, 2, :c, 3]
+    end
+  end
+
   describe "rb_block_proc" do
     it "converts the implicit block into a proc" do
       proc = @s.rb_block_proc { 1+1 }