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require_relative '../../spec_helper'
require_relative 'fixtures/classes'
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
end
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