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Contents
require 'spec_helper'
module WLang
describe Dialect, 'evaluate' do
let(:struct){ Struct.new(:who) }
let(:dialect){ Dialect.new }
def with_scope(*args, &bl)
dialect.with_scope(*args, &bl)
end
def evaluate(*args, &bl)
dialect.evaluate(*args, &bl)
end
it 'works with a hash' do
with_scope({:who => "World"}) do
evaluate("who").should eq("World")
evaluate(:who).should eq("World")
end
end
it 'works with a struct' do
with_scope(struct.new("World")) do
evaluate("who").should eq("World")
evaluate(:who).should eq("World")
end
end
it 'uses the hash in priority' do
with_scope({:keys => [1,2,3]}) do
evaluate("keys").should eq([1,2,3])
end
end
it 'falls back to send' do
with_scope({:who => "World"}) do
evaluate("keys").should eq([:who])
end
end
it 'supports a default value' do
evaluate("who", 12).should eq(12)
evaluate("who", nil).should be_nil
end
it 'supports a default value through a Proc' do
evaluate("who"){ 12 }.should eq(12)
evaluate("who"){ nil }.should be_nil
end
it 'raises a NameError when not found' do
lambda{ evaluate("who") }.should raise_error(NameError)
end
end # describe Dialect, 'evaluate'
end # module WLang
Version data entries
12 entries across 12 versions & 1 rubygems