1 files changed, 24 insertions, 0 deletions
diff --git a/spec/mspec/lib/mspec/matchers/have_private_method.rb b/spec/mspec/lib/mspec/matchers/have_private_method.rb
new file mode 100644
index 0000000000..d99d4ccb7f
--- /dev/null
+++ b/spec/mspec/lib/mspec/matchers/have_private_method.rb
@@ -0,0 +1,24 @@
+require 'mspec/matchers/method'
+
+class HavePrivateMethodMatcher < MethodMatcher
+  def matches?(mod)
+    @mod = mod
+    mod.private_methods(@include_super).include? @method
+  end
+
+  def failure_message
+    ["Expected #{@mod} to have private method '#{@method.to_s}'",
+     "but it does not"]
+  end
+
+  def negative_failure_message
+    ["Expected #{@mod} NOT to have private method '#{@method.to_s}'",
+     "but it does"]
+  end
+end
+
+class Object
+  def have_private_method(method, include_super=true)
+    HavePrivateMethodMatcher.new method, include_super
+  end
+end