1 files changed, 116 insertions, 0 deletions
diff --git a/spec/ruby/core/kernel/public_send_spec.rb b/spec/ruby/core/kernel/public_send_spec.rb
new file mode 100644
index 0000000000..6a4a969c77
--- /dev/null
+++ b/spec/ruby/core/kernel/public_send_spec.rb
@@ -0,0 +1,116 @@
+require_relative '../../spec_helper'
+require_relative 'fixtures/classes'
+require_relative '../../shared/basicobject/send'
+
+describe "Kernel#public_send" do
+  it "invokes the named public method" do
+    class KernelSpecs::Foo
+      def bar
+        'done'
+      end
+    end
+    KernelSpecs::Foo.new.public_send(:bar).should == 'done'
+  end
+
+  it "invokes the named alias of a public method" do
+    class KernelSpecs::Foo
+      def bar
+        'done'
+      end
+      alias :aka :bar
+    end
+    KernelSpecs::Foo.new.public_send(:aka).should == 'done'
+  end
+
+  it "raises a NoMethodError if the method is protected" do
+    class KernelSpecs::Foo
+      protected
+      def bar
+        'done'
+      end
+    end
+    -> { KernelSpecs::Foo.new.public_send(:bar)}.should.raise(NoMethodError)
+  end
+
+  it "raises a NoMethodError if the named method is private" do
+    class KernelSpecs::Foo
+      private
+      def bar
+        'done2'
+      end
+    end
+    -> {
+      KernelSpecs::Foo.new.public_send(:bar)
+    }.should.raise(NoMethodError)
+  end
+
+  context 'called from own public method' do
+    before do
+      class << @receiver = Object.new
+        def call_protected_method
+          public_send :protected_method
+        end
+
+        def call_private_method
+          public_send :private_method
+        end
+
+        protected
+
+        def protected_method
+          raise 'Should not called'
+        end
+
+        private
+
+        def private_method
+          raise 'Should not called'
+        end
+      end
+    end
+
+    it "raises a NoMethodError if the method is protected" do
+      -> { @receiver.call_protected_method }.should.raise(NoMethodError)
+    end
+
+    it "raises a NoMethodError if the method is private" do
+      -> { @receiver.call_private_method }.should.raise(NoMethodError)
+    end
+  end
+
+  it "raises a NoMethodError if the named method is an alias of a private method" do
+    class KernelSpecs::Foo
+      private
+      def bar
+        'done2'
+      end
+      alias :aka :bar
+    end
+    -> {
+      KernelSpecs::Foo.new.public_send(:aka)
+    }.should.raise(NoMethodError)
+  end
+
+  it "raises a NoMethodError if the named method is an alias of a protected method" do
+    class KernelSpecs::Foo
+      protected
+      def bar
+        'done2'
+      end
+      alias :aka :bar
+    end
+    -> {
+      KernelSpecs::Foo.new.public_send(:aka)
+    }.should.raise(NoMethodError)
+  end
+
+  it "includes `public_send` in the backtrace when passed not enough arguments" do
+    -> { public_send() }.should.raise(ArgumentError) { |e| e.backtrace[0].should =~ /[`'](?:Kernel#)?public_send'/ }
+  end
+
+  it "includes `public_send` in the backtrace when passed a single incorrect argument" do
+    -> { public_send(Object.new) }.should.raise(TypeError) { |e| e.backtrace[0].should =~ /[`'](?:Kernel#)?public_send'/ }
+  end
+
+  it_behaves_like :basicobject_send, :public_send
+end