1 files changed, 25 insertions, 0 deletions
diff --git a/spec/ruby/core/objectspace/weakkeymap/clear_spec.rb b/spec/ruby/core/objectspace/weakkeymap/clear_spec.rb
new file mode 100644
index 0000000000..b1804ec9b0
--- /dev/null
+++ b/spec/ruby/core/objectspace/weakkeymap/clear_spec.rb
@@ -0,0 +1,25 @@
+require_relative '../../../spec_helper'
+
+describe "ObjectSpace::WeakKeyMap#clear" do
+  it "removes all the entries" do
+    m = ObjectSpace::WeakKeyMap.new
+
+    key = Object.new
+    value = Object.new
+    m[key] = value
+
+    key2 = Object.new
+    value2 = Object.new
+    m[key2] = value2
+
+    m.clear
+
+    m.key?(key).should == false
+    m.key?(key2).should == false
+  end
+
+  it "returns self" do
+    m = ObjectSpace::WeakKeyMap.new
+    m.clear.should.equal?(m)
+  end
+end