1 files changed, 24 insertions, 0 deletions
diff --git a/spec/rubyspec/core/env/delete_spec.rb b/spec/rubyspec/core/env/delete_spec.rb
new file mode 100644
index 0000000000..e02adf963f
--- /dev/null
+++ b/spec/rubyspec/core/env/delete_spec.rb
@@ -0,0 +1,24 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe "ENV.delete" do
+  after :each do
+    ENV.delete("foo")
+  end
+
+  it "removes the variable from the environment" do
+    ENV["foo"] = "bar"
+    ENV.delete("foo")
+    ENV["foo"].should == nil
+  end
+
+  it "returns the previous value" do
+    ENV["foo"] = "bar"
+    ENV.delete("foo").should == "bar"
+  end
+
+  it "yields the name to the given block if the named environment variable does not exist" do
+    ENV.delete("foo")
+    ENV.delete("foo") { |name| ScratchPad.record name }
+    ScratchPad.recorded.should == "foo"
+  end
+end