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-rw-r--r--spec/ruby/core/module/attr_reader_spec.rb64
1 files changed, 64 insertions, 0 deletions
diff --git a/spec/ruby/core/module/attr_reader_spec.rb b/spec/ruby/core/module/attr_reader_spec.rb
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+++ b/spec/ruby/core/module/attr_reader_spec.rb
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+require File.expand_path('../../../spec_helper', __FILE__)
+require File.expand_path('../fixtures/classes', __FILE__)
+
+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
+
+ lambda { true.instance_variable_set("@spec_attr_reader", "a") }.should raise_error(RuntimeError)
+ end
+
+ it "converts non string/symbol/fixnum 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')
+ lambda { Class.new { attr_reader o } }.should raise_error(TypeError)
+ (o = mock('123')).should_receive(:to_str).and_return(123)
+ lambda { 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
+
+ lambda { c.new.foo }.should raise_error(NoMethodError)
+ end
+
+ it "is a private method" do
+ lambda { Class.new.attr_reader(:foo) }.should raise_error(NoMethodError)
+ end
+end