diff options
author | Dan Bode <dan@puppetlabs.com> | 2011-07-29 15:28:21 -0700 |
---|---|---|
committer | Dan Bode <dan@puppetlabs.com> | 2011-07-29 15:28:21 -0700 |
commit | c4a13acafeee87359d1fd72abeccdab7b9d5fee1 (patch) | |
tree | 99d67fcb0a3d1fe02a4c20c715b42b44dc62aea4 /spec/unit/puppet | |
parent | b1beaec2da36aa2312f959b1521137f5df96608f (diff) | |
download | puppet-stdlib-c4a13acafeee87359d1fd72abeccdab7b9d5fee1.tar.gz puppet-stdlib-c4a13acafeee87359d1fd72abeccdab7b9d5fee1.tar.bz2 |
(#8709) Add hash merging function
In Puppet, it is not possible to reassign hash
values.
This function allows a reasonable way to perform
hash munging in Puppet.
Reviewed-by: Jeff McCune
Diffstat (limited to 'spec/unit/puppet')
-rw-r--r-- | spec/unit/puppet/parser/functions/merge_spec.rb | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/spec/unit/puppet/parser/functions/merge_spec.rb b/spec/unit/puppet/parser/functions/merge_spec.rb new file mode 100644 index 0000000..71e1869 --- /dev/null +++ b/spec/unit/puppet/parser/functions/merge_spec.rb @@ -0,0 +1,54 @@ +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 |