Contents

require "minitest/autorun"
require "attr_extras"

class Example
  attr_initialize :foo, :bar
  attr_private :foo, :bar
end

class PattrExample
  pattr_initialize :foo, :bar
end

class QueryExample
  attr_id_query :baz?, :boink?
  attr_accessor :baz_id
end

describe Object, ".attr_initialize" do
  it "creates an initializer setting those instance variables" do
    example = Example.new("Foo", "Bar")
    example.instance_variable_get("@foo").must_equal "Foo"
    example.instance_variable_get("@bar").must_equal "Bar"
  end

  it "requires all arguments" do
    lambda { Example.new("Foo") }.must_raise ArgumentError
  end
end

describe Object, ".attr_private" do
  it "creates private readers" do
    example = Example.new("Foo", "Bar")
    example.send(:foo).must_equal "Foo"
    example.send(:bar).must_equal "Bar"
    lambda { example.foo }.must_raise NoMethodError
  end
end

describe Object, ".pattr_initialize" do
  it "creates both initializer and private readers" do
    example = PattrExample.new("Foo", "Bar")
    example.send(:foo).must_equal "Foo"
  end
end

describe Object, ".attr_id_query" do
  it "creates id query methods" do
    example = QueryExample.new
    refute example.baz?
    example.baz_id = 123
    assert example.baz?
  end

  it "requires a trailing questionmark" do
    lambda { Object.attr_id_query(:foo) }.must_raise RuntimeError
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
attr_extras-1.1.0	spec/attr_extras_spec.rb