1 files changed, 26 insertions, 0 deletions
diff --git a/spec/ruby/core/kernel/global_variables_spec.rb b/spec/ruby/core/kernel/global_variables_spec.rb
new file mode 100644
index 0000000000..d41bdff49a
--- /dev/null
+++ b/spec/ruby/core/kernel/global_variables_spec.rb
@@ -0,0 +1,26 @@
+require_relative '../../spec_helper'
+require_relative 'fixtures/classes'
+
+describe "Kernel.global_variables" do
+  it "is a private method" do
+    Kernel.private_instance_methods(false).should.include?(:global_variables)
+  end
+
+  before :all do
+    @i = 0
+  end
+
+  it "finds subset starting with std" do
+    global_variables.grep(/std/).to_set.should >= Set[:$stderr, :$stdin, :$stdout]
+    a = global_variables.size
+    gvar_name = "$foolish_global_var#{@i += 1}"
+    global_variables.include?(gvar_name.to_sym).should == false
+    eval("#{gvar_name} = 1")
+    global_variables.size.should == a+1
+    global_variables.should.include?(gvar_name.to_sym)
+  end
+end
+
+describe "Kernel#global_variables" do
+  it "needs to be reviewed for spec completeness"
+end