1 files changed, 45 insertions, 0 deletions
diff --git a/spec/ruby/core/kernel/local_variables_spec.rb b/spec/ruby/core/kernel/local_variables_spec.rb
new file mode 100644
index 0000000000..40c343f7e4
--- /dev/null
+++ b/spec/ruby/core/kernel/local_variables_spec.rb
@@ -0,0 +1,45 @@
+require_relative '../../spec_helper'
+require_relative 'fixtures/classes'
+
+describe "Kernel#local_variables" do
+  after :each do
+    ScratchPad.clear
+  end
+
+  it "is a private method" do
+    Kernel.private_instance_methods(false).should.include?(:local_variables)
+  end
+
+  it "contains locals as they are added" do
+    a = 1
+    b = 2
+    local_variables.sort.should == [:a, :b]
+  end
+
+  it "is accessible from bindings" do
+    def local_var_foo
+      a = 1
+      b = 2
+      binding
+    end
+    foo_binding = local_var_foo()
+    res = eval("local_variables",foo_binding)
+    res.sort.should == [:a, :b]
+  end
+
+  it "is accessible in eval" do
+    eval "a=1; b=2; ScratchPad.record local_variables"
+    ScratchPad.recorded.sort.should == [:a, :b]
+  end
+
+  it "includes only unique variable names" do
+    def local_var_method
+      a = 1
+      1.times do |;a|
+        return local_variables
+      end
+    end
+
+    local_var_method.should == [:a]
+  end
+end