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require 'puppet'
require 'mocha'
describe Puppet::Parser::Functions.function(:merge) do
# Pulled from Dan's create_resources function
# TODO - these let statements should be moved somewhere
# where they can be resued
let(:compiler) {
topscope = Puppet::Parser::Scope.new
# This is necessary so we don't try to use the compiler to discover our parent.
topscope.parent = nil
my_scope = Puppet::Parser::Scope.new
my_scope.compiler = Puppet::Parser::Compiler.new(Puppet::Node.new("floppy", :environment => 'production'))
my_scope.parent = topscope
compiler = my_scope.compiler
}
let(:scope) {
scope = Puppet::Parser::Scope.new
scope.stubs(:environment).returns(Puppet::Node::Environment.new('production'))
scope
}
describe 'when calling merge from puppet' do
it "should not compile when no arguments are passed" do
Puppet[:code] = 'merge()'
expect { 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 { 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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