1 files changed, 15 insertions, 0 deletions
diff --git a/spec/ruby/core/env/replace_spec.rb b/spec/ruby/core/env/replace_spec.rb
new file mode 100644
index 0000000000..0c11e173ac
--- /dev/null
+++ b/spec/ruby/core/env/replace_spec.rb
@@ -0,0 +1,15 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe "ENV.replace" do
+
+  it "replaces ENV with a Hash" do
+    ENV["foo"] = "bar"
+    e = ENV.reject { |k, v| k == "foo" }
+    e["baz"] = "bam"
+    ENV.replace e
+    ENV["foo"].should == nil
+    ENV["baz"].should == "bam"
+    ENV.delete "baz"
+  end
+
+end