1 files changed, 58 insertions, 0 deletions
diff --git a/spec/ruby/core/exception/receiver_spec.rb b/spec/ruby/core/exception/receiver_spec.rb
new file mode 100644
index 0000000000..6ecf640ad8
--- /dev/null
+++ b/spec/ruby/core/exception/receiver_spec.rb
@@ -0,0 +1,58 @@
+require_relative '../../spec_helper'
+require_relative 'fixtures/common'
+
+describe "NameError#receiver" do
+  class ::ReceiverClass
+    def call_undefined_class_variable; @@doesnt_exist end
+  end
+
+  it "returns the object that raised the exception" do
+    receiver = Object.new
+
+    -> {
+      receiver.doesnt_exist
+    }.should.raise(NameError) {|e| e.receiver.should.equal?(receiver) }
+  end
+
+  it "returns the Object class when an undefined constant is called without namespace" do
+    -> {
+      DoesntExist
+    }.should.raise(NameError) {|e| e.receiver.should.equal?(Object) }
+  end
+
+  it "returns a class when an undefined constant is called" do
+    -> {
+      NameErrorSpecs::ReceiverClass::DoesntExist
+    }.should.raise(NameError) {|e| e.receiver.should.equal?(NameErrorSpecs::ReceiverClass) }
+  end
+
+  it "returns the Object class when an undefined class variable is called" do
+    -> {
+      eval("class singleton_class::A; @@doesnt_exist end", binding, __FILE__, __LINE__)
+    }.should.raise(NameError) {|e| e.receiver.should.equal?(singleton_class::A) }
+  end
+
+  it "returns a class when an undefined class variable is called in a subclass' namespace" do
+    -> {
+      NameErrorSpecs::ReceiverClass.new.call_undefined_class_variable
+    }.should.raise(NameError) {|e| e.receiver.should.equal?(NameErrorSpecs::ReceiverClass) }
+  end
+
+  it "returns the receiver when raised from #instance_variable_get" do
+    receiver = Object.new
+
+    -> {
+      receiver.instance_variable_get("invalid_ivar_name")
+    }.should.raise(NameError) {|e| e.receiver.should.equal?(receiver) }
+  end
+
+  it "returns the receiver when raised from #class_variable_get" do
+    -> {
+      Object.class_variable_get("invalid_cvar_name")
+    }.should.raise(NameError) {|e| e.receiver.should.equal?(Object) }
+  end
+
+  it "raises an ArgumentError when the receiver is none" do
+    -> { NameError.new.receiver }.should.raise(ArgumentError)
+  end
+end