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Versions: 52
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Contents
require File.expand_path('../../spec_helper', __FILE__)
describe "The BEGIN keyword" do
ruby_version_is "" .. "1.9" do
it "runs in a new isolated scope" do
lambda {
eval "BEGIN { var_in_begin = 'foo' }; var_in_begin"
}.should raise_error NameError
lambda {
outside_var = 'foo'
eval "BEGIN { outside_var }"
}.should raise_error NameError
end
end
ruby_version_is "1.9" do
it "runs in a shared scope" do
lambda {
eval "BEGIN { var_in_begin = 'foo' }; var_in_begin"
}.should_not raise_error NameError
lambda {
outside_var = 'foo'
eval "BEGIN { outside_var }"
}.should_not raise_error NameError
end
it "must appear in a top-level context" do
lambda do
eval "1.times{ BEGIN{ :begun }}"
end.should raise_error(SyntaxError)
end
end
it "runs first in a given code unit" do
o = Object.new
class << o
ARY = []
eval "ARY << 'foo'; BEGIN { ARY << 'bar' }"
def ary; ARY; end
end
o.ary.should == ['bar', 'foo']
end
it "runs multiple begins in FIFO order" do
o = Object.new
class << o
ARY = []
eval "BEGIN { ARY << 'foo' }; BEGIN { ARY << 'bar' }"
def ary; ARY; end
end
o.ary.should == ['foo', 'bar']
end
end
Version data entries
52 entries across 52 versions & 2 rubygems