1 files changed, 73 insertions, 0 deletions
diff --git a/spec/ruby/core/module/attr_reader_spec.rb b/spec/ruby/core/module/attr_reader_spec.rb
new file mode 100644
index 0000000000..37fd537ff5
--- /dev/null
+++ b/spec/ruby/core/module/attr_reader_spec.rb
@@ -0,0 +1,73 @@
+require_relative '../../spec_helper'
+require_relative 'fixtures/classes'
+require_relative 'shared/attr_added'
+
+describe "Module#attr_reader" do
+  it "creates a getter for each given attribute name" do
+    c = Class.new do
+      attr_reader :a, "b"
+
+      def initialize
+        @a = "test"
+        @b = "test2"
+      end
+    end
+
+    o = c.new
+    %w{a b}.each do |x|
+      o.respond_to?(x).should == true
+      o.respond_to?("#{x}=").should == false
+    end
+
+    o.a.should == "test"
+    o.b.should == "test2"
+    o.send(:a).should == "test"
+    o.send(:b).should == "test2"
+  end
+
+  it "not allows for adding an attr_reader to an immediate" do
+    class TrueClass
+      attr_reader :spec_attr_reader
+    end
+
+    -> { true.instance_variable_set("@spec_attr_reader", "a") }.should raise_error(RuntimeError)
+  end
+
+  it "converts non string/symbol names to strings using to_str" do
+    (o = mock('test')).should_receive(:to_str).any_number_of_times.and_return("test")
+    c = Class.new do
+      attr_reader o
+    end
+
+    c.new.respond_to?("test").should == true
+    c.new.respond_to?("test=").should == false
+  end
+
+  it "raises a TypeError when the given names can't be converted to strings using to_str" do
+    o = mock('o')
+    -> { Class.new { attr_reader o } }.should raise_error(TypeError)
+    (o = mock('123')).should_receive(:to_str).and_return(123)
+    -> { Class.new { attr_reader o } }.should raise_error(TypeError)
+  end
+
+  it "applies current visibility to methods created" do
+    c = Class.new do
+      protected
+      attr_reader :foo
+    end
+
+    -> { c.new.foo }.should raise_error(NoMethodError)
+  end
+
+  it "is a public method" do
+    Module.should have_public_instance_method(:attr_reader, false)
+  end
+
+  it "returns an array of defined method names as symbols" do
+    Class.new do
+      (attr_reader :foo, 'bar').should == [:foo, :bar]
+    end
+  end
+
+  it_behaves_like :module_attr_added, :attr_reader
+end