From 23330abdad4c076e62e778d6d32c8071cb2c0d12 Mon Sep 17 00:00:00 2001
From: federico.builes@gmail.com <federico@korobeiniki.(none)>
Date: Fri, 21 Mar 2008 11:46:27 -0500
Subject: [PATCH] Adds a be_empty matcher to MSpec

* Fails if the expected value is !empty?
---
 mspec/matchers.rb          |    1 +
 mspec/matchers/be_empty.rb |   20 ++++++++++++++++++++
 2 files changed, 21 insertions(+), 0 deletions(-)
 create mode 100644 mspec/matchers/be_empty.rb

diff --git a/mspec/matchers.rb b/mspec/matchers.rb
index 340ea43..dd2e9b7 100644
--- a/mspec/matchers.rb
+++ b/mspec/matchers.rb
@@ -1,5 +1,6 @@
 require 'mspec/matchers/base'
 require 'mspec/matchers/be_ancestor_of'
 require 'mspec/matchers/be_close'
+require 'mspec/matchers/be_empty'
 require 'mspec/matchers/be_kind_of'
 require 'mspec/matchers/include'
diff --git a/mspec/matchers/be_empty.rb b/mspec/matchers/be_empty.rb
new file mode 100644
index 0000000..a857ae5
--- /dev/null
+++ b/mspec/matchers/be_empty.rb
@@ -0,0 +1,20 @@
+class BeEmptyMatcher
+  def matches?(actual)
+    @actual = actual
+    @actual.empty?
+  end
+  
+  def failure_message
+    ["Expected #{@actual}", "to be empty"]
+  end
+
+  def negative_failure_message
+    ["Expected #{@actual}", "not to be empty"]
+  end
+end
+
+class Object
+  def be_empty
+    BeEmptyMatcher.new
+  end
+end
-- 
1.5.4