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require 'spec_helper'
describe Parslet::Context do
def context(*args)
described_class.new(*args)
end
it "binds hash keys as variable like things" do
context(:a => 'value').instance_eval { a }.
should == 'value'
end
it "one contexts variables aren't the next ones" do
ca = context(:a => 'b')
cb = context(:b => 'c')
ca.methods.should_not include(:b)
cb.methods.should_not include(:a)
end
describe 'works as a Ruby object should' do
let(:obj) { context(a: 1) }
it 'responds_to? :a' do
assert obj.respond_to?(:a)
end
it 'includes :a in #methods' do
obj.methods.assert.include?(:a)
end
it 'allows inspection' do
obj.inspect.assert.match(/@a=1/)
end
it 'allows conversion to string' do
obj.to_s.assert.match(/Parslet::Context:0x/)
end
context 'when the context is enhanced' do
before(:each) do
class << obj
def foo
'foo'
end
end
end
it 'responds_to correctly' do
assert obj.respond_to?(:foo)
end
it 'includes :foo also in methods' do
obj.methods.assert.include?(:foo)
end
it 'allows calling #foo' do
obj.foo.assert == 'foo'
end
end
end
end
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