1 files changed, 159 insertions, 0 deletions
diff --git a/spec/ruby/core/module/attr_spec.rb b/spec/ruby/core/module/attr_spec.rb
new file mode 100644
index 0000000000..2f9f4e26dc
--- /dev/null
+++ b/spec/ruby/core/module/attr_spec.rb
@@ -0,0 +1,159 @@
+require_relative '../../spec_helper'
+require_relative 'fixtures/classes'
+require_relative 'shared/attr_added'
+
+describe "Module#attr" do
+  before :each do
+    $VERBOSE, @verbose = false, $VERBOSE
+  end
+
+  after :each do
+    $VERBOSE = @verbose
+  end
+
+  it "creates a getter for the given attribute name" do
+    c = Class.new do
+      attr :attr
+      attr "attr3"
+
+      def initialize
+        @attr, @attr2, @attr3 = "test", "test2", "test3"
+      end
+    end
+
+    o = c.new
+
+    %w{attr attr3}.each do |a|
+      o.respond_to?(a).should == true
+      o.respond_to?("#{a}=").should == false
+    end
+
+    o.attr.should == "test"
+    o.attr3.should == "test3"
+    o.send(:attr).should == "test"
+    o.send(:attr3).should == "test3"
+  end
+
+  it "creates a setter for the given attribute name if writable is true" do
+    c = Class.new do
+      attr :attr, true
+      attr "attr3", true
+
+      def initialize
+        @attr, @attr2, @attr3 = "test", "test2", "test3"
+      end
+    end
+
+    o = c.new
+
+    %w{attr attr3}.each do |a|
+      o.respond_to?(a).should == true
+      o.respond_to?("#{a}=").should == true
+    end
+
+    o.attr = "test updated"
+    o.attr3 = "test3 updated"
+  end
+
+  it "creates a getter and setter for the given attribute name if called with and without writable is true" do
+    c = Class.new do
+      attr :attr, true
+      attr :attr
+
+      attr "attr3", true
+      attr "attr3"
+
+      def initialize
+        @attr, @attr2, @attr3 = "test", "test2", "test3"
+      end
+    end
+
+    o = c.new
+
+    %w{attr attr3}.each do |a|
+      o.respond_to?(a).should == true
+      o.respond_to?("#{a}=").should == true
+    end
+
+    o.attr.should == "test"
+    o.attr = "test updated"
+    o.attr.should == "test updated"
+
+    o.attr3.should == "test3"
+    o.attr3 = "test3 updated"
+    o.attr3.should == "test3 updated"
+  end
+
+  it "applies current visibility to methods created" do
+    c = Class.new do
+      protected
+      attr :foo, true
+    end
+
+    -> { c.new.foo }.should raise_error(NoMethodError)
+    -> { c.new.foo=1 }.should raise_error(NoMethodError)
+  end
+
+  it "creates a getter but no setter for all given attribute names" do
+    c = Class.new do
+      attr :attr, "attr2", "attr3"
+
+      def initialize
+        @attr, @attr2, @attr3 = "test", "test2", "test3"
+      end
+    end
+
+    o = c.new
+
+    %w{attr attr2 attr3}.each do |a|
+      o.respond_to?(a).should == true
+      o.respond_to?("#{a}=").should == false
+    end
+
+    o.attr.should == "test"
+    o.attr2.should == "test2"
+    o.attr3.should == "test3"
+  end
+
+  it "applies current visibility to methods created" do
+    c = Class.new do
+      protected
+      attr :foo, :bar
+    end
+
+    -> { c.new.foo }.should raise_error(NoMethodError)
+    -> { c.new.bar }.should raise_error(NoMethodError)
+  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")
+    Class.new { attr o }.new.respond_to?("test").should == true
+  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 o } }.should raise_error(TypeError)
+    (o = mock('123')).should_receive(:to_str).and_return(123)
+    -> { Class.new { attr o } }.should raise_error(TypeError)
+  end
+
+  it "with a boolean argument emits a warning when $VERBOSE is true" do
+    -> {
+      Class.new { attr :foo, true }
+    }.should complain(/boolean argument is obsoleted/, verbose: true)
+  end
+
+  it "is a public method" do
+    Module.should have_public_instance_method(:attr, false)
+  end
+
+  it "returns an array of defined method names as symbols" do
+    Class.new do
+      (attr :foo, 'bar').should == [:foo, :bar]
+      (attr :baz, false).should == [:baz]
+      (attr :qux, true).should == [:qux, :qux=]
+    end
+  end
+
+  it_behaves_like :module_attr_added, :attr
+end