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#! /usr/bin/env ruby -S rspec
require 'spec_helper'
describe Puppet::Parser::Functions.function(:merge) do
let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
describe 'when calling merge from puppet' do
it "should not compile when no arguments are passed" do
Puppet[:code] = 'merge()'
expect { scope.compiler.compile }.should raise_error(Puppet::ParseError, /wrong number of arguments/)
end
it "should not compile when 1 argument is passed" do
Puppet[:code] = "$my_hash={'one' => 1}\nmerge($my_hash)"
expect { scope.compiler.compile }.should raise_error(Puppet::ParseError, /wrong number of arguments/)
end
end
describe 'when calling merge on the scope instance' do
it 'should require all parameters are hashes' do
expect { new_hash = scope.function_merge([{}, '2'])}.should raise_error(Puppet::ParseError, /unexpected argument type String/)
end
it 'should be able to merge two hashes' do
new_hash = scope.function_merge([{'one' => '1', 'two' => '1'}, {'two' => '2', 'three' => '2'}])
new_hash['one'].should == '1'
new_hash['two'].should == '2'
new_hash['three'].should == '2'
end
it 'should merge multiple hashes' do
hash = scope.function_merge([{'one' => 1}, {'one' => '2'}, {'one' => '3'}])
hash['one'].should == '3'
end
it 'should accept empty hashes' do
scope.function_merge([{},{},{}]).should == {}
end
end
end
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