diff --git a/lib/puppet/parameter.rb b/lib/puppet/parameter.rb index e3e9e5164..de5bad699 100644 --- a/lib/puppet/parameter.rb +++ b/lib/puppet/parameter.rb @@ -1,298 +1,307 @@ require 'puppet/util/methodhelper' require 'puppet/util/log_paths' require 'puppet/util/logging' require 'puppet/util/docs' class Puppet::Parameter include Puppet::Util include Puppet::Util::Errors include Puppet::Util::LogPaths include Puppet::Util::Logging include Puppet::Util::MethodHelper require 'puppet/parameter/value_collection' class << self include Puppet::Util include Puppet::Util::Docs attr_reader :validater, :munger, :name, :default, :required_features, :value_collection attr_accessor :metaparam # Define the default value for a given parameter or parameter. This # means that 'nil' is an invalid default value. This defines # the 'default' instance method. def defaultto(value = nil, &block) if block define_method(:default, &block) else if value.nil? raise Puppet::DevError, "Either a default value or block must be provided" end define_method(:default) do value end end end # Return a documentation string. If there are valid values, # then tack them onto the string. def doc @doc ||= "" unless defined?(@addeddocvals) @doc += value_collection.doc if f = self.required_features @doc += " Requires features #{f.flatten.collect { |f| f.to_s }.join(" ")}." end @addeddocvals = true end @doc end def nodefault undef_method :default if public_method_defined? :default end # Store documentation for this parameter. def desc(str) @doc = str end def initvars @value_collection = ValueCollection.new end # This is how we munge the value. Basically, this is our # opportunity to convert the value from one form into another. def munge(&block) # I need to wrap the unsafe version in begin/rescue parameterments, # but if I directly call the block then it gets bound to the # class's context, not the instance's, thus the two methods, # instead of just one. define_method(:unsafe_munge, &block) end # Does the parameter support reverse munging? # This will be called when something wants to access the parameter # in a canonical form different to what the storage form is. def unmunge(&block) define_method(:unmunge, &block) end # Mark whether we're the namevar. def isnamevar @isnamevar = true @required = true end # Is this parameter the namevar? Defaults to false. def isnamevar? @isnamevar end # This parameter is required. def isrequired @required = true end # Specify features that are required for this parameter to work. def required_features=(*args) @required_features = args.flatten.collect { |a| a.to_s.downcase.intern } end # Is this parameter required? Defaults to false. def required? @required end # Verify that we got a good value def validate(&block) define_method(:unsafe_validate, &block) end # Define a new value for our parameter. def newvalues(*names) @value_collection.newvalues(*names) end def aliasvalue(name, other) @value_collection.aliasvalue(name, other) end end # Just a simple method to proxy instance methods to class methods def self.proxymethods(*values) values.each { |val| define_method(val) do self.class.send(val) end } end # And then define one of these proxies for each method in our # ParamHandler class. proxymethods("required?", "isnamevar?") attr_accessor :resource # LAK 2007-05-09: Keep the @parent around for backward compatibility. attr_accessor :parent [:line, :file, :version].each do |param| define_method(param) do resource.send(param) end end def devfail(msg) self.fail(Puppet::DevError, msg) end def fail(*args) type = nil if args[0].is_a?(Class) type = args.shift else type = Puppet::Error end error = type.new(args.join(" ")) error.line = @resource.line if @resource and @resource.line error.file = @resource.file if @resource and @resource.file raise error end # Basic parameter initialization. def initialize(options = {}) options = symbolize_options(options) if resource = options[:resource] self.resource = resource options.delete(:resource) else raise Puppet::DevError, "No resource set for #{self.class.name}" end set_options(options) end def log(msg) send_log(resource[:loglevel], msg) end # Is this parameter a metaparam? def metaparam? self.class.metaparam end # each parameter class must define the name method, and parameter # instances do not change that name this implicitly means that a given # object can only have one parameter instance of a given parameter # class def name self.class.name end # for testing whether we should actually do anything def noop @noop ||= false tmp = @noop || self.resource.noop || Puppet[:noop] || false #debug "noop is #{tmp}" tmp end # return the full path to us, for logging and rollback; not currently # used def pathbuilder if @resource return [@resource.pathbuilder, self.name] else return [self.name] end end # If the specified value is allowed, then munge appropriately. # If the developer uses a 'munge' hook, this method will get overridden. def unsafe_munge(value) self.class.value_collection.munge(value) end # no unmunge by default def unmunge(value) value end # A wrapper around our munging that makes sure we raise useful exceptions. def munge(value) begin ret = unsafe_munge(value) rescue Puppet::Error => detail Puppet.debug "Reraising #{detail}" raise rescue => detail raise Puppet::DevError, "Munging failed for value #{value.inspect} in class #{self.name}: #{detail}", detail.backtrace end ret end # Verify that the passed value is valid. # If the developer uses a 'validate' hook, this method will get overridden. def unsafe_validate(value) self.class.value_collection.validate(value) end # A protected validation method that only ever raises useful exceptions. def validate(value) begin unsafe_validate(value) rescue ArgumentError => detail fail detail.to_s rescue Puppet::Error, TypeError raise rescue => detail raise Puppet::DevError, "Validate method failed for class #{self.name}: #{detail}", detail.backtrace end end def remove @resource = nil end def value unmunge(@value) unless @value.nil? end # Store the value provided. All of the checking should possibly be # late-binding (e.g., users might not exist when the value is assigned # but might when it is asked for). def value=(value) validate(value) @value = munge(value) end # Retrieve the resource's provider. Some types don't have providers, in which # case we return the resource object itself. def provider @resource.provider end # The properties need to return tags so that logs correctly collect them. def tags unless defined?(@tags) @tags = [] # This might not be true in testing @tags = @resource.tags if @resource.respond_to? :tags @tags << self.name.to_s end @tags end def to_s name.to_s end + + def self.format_value_for_display(value) + if value.is_a? Array + formatted_values = value.collect {|value| format_value_for_display(value)}.join(', ') + "[#{formatted_values}]" + else + "'#{value}'" + end + end end require 'puppet/parameter/path' diff --git a/lib/puppet/property.rb b/lib/puppet/property.rb index 12f496a6e..ee8f3b4c1 100644 --- a/lib/puppet/property.rb +++ b/lib/puppet/property.rb @@ -1,339 +1,339 @@ # The virtual base class for properties, which are the self-contained building # blocks for actually doing work on the system. require 'puppet' require 'puppet/parameter' class Puppet::Property < Puppet::Parameter require 'puppet/property/ensure' # Because 'should' uses an array, we have a special method for handling # it. We also want to keep copies of the original values, so that # they can be retrieved and compared later when merging. attr_reader :shouldorig attr_writer :noop class << self attr_accessor :unmanaged attr_reader :name # Return array matching info, defaulting to just matching # the first value. def array_matching @array_matching ||= :first end # Set whether properties should match all values or just the first one. def array_matching=(value) value = value.intern if value.is_a?(String) raise ArgumentError, "Supported values for Property#array_matching are 'first' and 'all'" unless [:first, :all].include?(value) @array_matching = value end end # Look up a value's name, so we can find options and such. def self.value_name(name) if value = value_collection.match?(name) value.name end end # Retrieve an option set when a value was defined. def self.value_option(name, option) if value = value_collection.value(name) value.send(option) end end # Define a new valid value for a property. You must provide the value itself, # usually as a symbol, or a regex to match the value. # # The first argument to the method is either the value itself or a regex. # The second argument is an option hash; valid options are: # * :method: The name of the method to define. Defaults to 'set_'. # * :required_features: A list of features this value requires. # * :event: The event that should be returned when this value is set. # * :call: When to call any associated block. The default value # is `instead`, which means to call the value instead of calling the # provider. You can also specify `before` or `after`, which will # call both the block and the provider, according to the order you specify # (the `first` refers to when the block is called, not the provider). def self.newvalue(name, options = {}, &block) value = value_collection.newvalue(name, options, &block) define_method(value.method, &value.block) if value.method and value.block value end # Call the provider method. def call_provider(value) provider.send(self.class.name.to_s + "=", value) rescue NoMethodError self.fail "The #{provider.class.name} provider can not handle attribute #{self.class.name}" end # Call the dynamically-created method associated with our value, if # there is one. def call_valuemethod(name, value) if method = self.class.value_option(name, :method) and self.respond_to?(method) begin event = self.send(method) rescue Puppet::Error raise rescue => detail puts detail.backtrace if Puppet[:trace] error = Puppet::Error.new("Could not set '#{value} on #{self.class.name}: #{detail}", @resource.line, @resource.file) error.set_backtrace detail.backtrace raise error end elsif block = self.class.value_option(name, :block) # FIXME It'd be better here to define a method, so that # the blocks could return values. self.instance_eval(&block) else devfail "Could not find method for value '#{name}'" end end # How should a property change be printed as a string? def change_to_s(current_value, newvalue) begin if current_value == :absent - return "defined '#{name}' as '#{should_to_s(newvalue)}'" + return "defined '#{name}' as #{self.class.format_value_for_display should_to_s(newvalue)}" elsif newvalue == :absent or newvalue == [:absent] - return "undefined '#{name}' from '#{is_to_s(current_value)}'" + return "undefined '#{name}' from #{self.class.format_value_for_display is_to_s(current_value)}" else - return "#{name} changed '#{is_to_s(current_value)}' to '#{should_to_s(newvalue)}'" + return "#{name} changed #{self.class.format_value_for_display is_to_s(current_value)} to #{self.class.format_value_for_display should_to_s(newvalue)}" end rescue Puppet::Error, Puppet::DevError raise rescue => detail puts detail.backtrace if Puppet[:trace] raise Puppet::DevError, "Could not convert change '#{name}' to string: #{detail}" end end # Figure out which event to return. def event_name value = self.should event_name = self.class.value_option(value, :event) and return event_name name == :ensure or return (name.to_s + "_changed").to_sym return (resource.type.to_s + case value when :present; "_created" when :absent; "_removed" else "_changed" end).to_sym end # Return a modified form of the resource event. def event resource.event :name => event_name, :desired_value => should, :property => self, :source_description => path end attr_reader :shadow # initialize our property def initialize(hash = {}) super if ! self.metaparam? and klass = Puppet::Type.metaparamclass(self.class.name) setup_shadow(klass) end end # Determine whether the property is in-sync or not. If @should is # not defined or is set to a non-true value, then we do not have # a valid value for it and thus consider the property to be in-sync # since we cannot fix it. Otherwise, we expect our should value # to be an array, and if @is matches any of those values, then # we consider it to be in-sync. # # Don't override this method. def safe_insync?(is) # If there is no @should value, consider the property to be in sync. return true unless @should # Otherwise delegate to the (possibly derived) insync? method. insync?(is) end def self.method_added(sym) raise "Puppet::Property#safe_insync? shouldn't be overridden; please override insync? instead" if sym == :safe_insync? end # This method should be overridden by derived classes if necessary # to provide extra logic to determine whether the property is in # sync. def insync?(is) self.devfail "#{self.class.name}'s should is not array" unless @should.is_a?(Array) # an empty array is analogous to no should values return true if @should.empty? # Look for a matching value return (is == @should or is == @should.collect { |v| v.to_s }) if match_all? @should.each { |val| return true if is == val or is == val.to_s } # otherwise, return false false end # because the @should and @is vars might be in weird formats, # we need to set up a mechanism for pretty printing of the values # default to just the values, but this way individual properties can # override these methods def is_to_s(currentvalue) currentvalue end # Send a log message. def log(msg) Puppet::Util::Log.create( :level => resource[:loglevel], :message => msg, :source => self ) end # Should we match all values, or just the first? def match_all? self.class.array_matching == :all end # Execute our shadow's munge code, too, if we have one. def munge(value) self.shadow.munge(value) if self.shadow super end # each property class must define the name method, and property instances # do not change that name # this implicitly means that a given object can only have one property # instance of a given property class def name self.class.name end # for testing whether we should actually do anything def noop # This is only here to make testing easier. if @resource.respond_to?(:noop?) @resource.noop? else if defined?(@noop) @noop else Puppet[:noop] end end end # By default, call the method associated with the property name on our # provider. In other words, if the property name is 'gid', we'll call # 'provider.gid' to retrieve the current value. def retrieve provider.send(self.class.name) end # Set our value, using the provider, an associated block, or both. def set(value) # Set a name for looking up associated options like the event. name = self.class.value_name(value) call = self.class.value_option(name, :call) || :none if call == :instead call_valuemethod(name, value) elsif call == :none # They haven't provided a block, and our parent does not have # a provider, so we have no idea how to handle this. self.fail "#{self.class.name} cannot handle values of type #{value.inspect}" unless @resource.provider call_provider(value) else # LAK:NOTE 20081031 This is a change in behaviour -- you could # previously specify :call => [;before|:after], which would call # the setter *in addition to* the block. I'm convinced this # was never used, and it makes things unecessarily complicated. # If you want to specify a block and still call the setter, then # do so in the block. devfail "Cannot use obsolete :call value '#{call}' for property '#{self.class.name}'" end end # If there's a shadowing metaparam, instantiate it now. # This allows us to create a property or parameter with the # same name as a metaparameter, and the metaparam will only be # stored as a shadow. def setup_shadow(klass) @shadow = klass.new(:resource => self.resource) end # Only return the first value def should return nil unless defined?(@should) self.devfail "should for #{self.class.name} on #{resource.name} is not an array" unless @should.is_a?(Array) if match_all? return @should.collect { |val| self.unmunge(val) } else return self.unmunge(@should[0]) end end # Set the should value. def should=(values) values = [values] unless values.is_a?(Array) @shouldorig = values values.each { |val| validate(val) } @should = values.collect { |val| self.munge(val) } end def should_to_s(newvalue) [newvalue].flatten.join(" ") end def sync devfail "Got a nil value for should" unless should set(should) end # Verify that the passed value is valid. # If the developer uses a 'validate' hook, this method will get overridden. def unsafe_validate(value) super validate_features_per_value(value) end # Make sure that we've got all of the required features for a given value. def validate_features_per_value(value) if features = self.class.value_option(self.class.value_name(value), :required_features) features = Array(features) needed_features = features.collect { |f| f.to_s }.join(", ") raise ArgumentError, "Provider must have features '#{needed_features}' to set '#{self.class.name}' to '#{value}'" unless provider.satisfies?(features) end end # Just return any should value we might have. def value self.should end # Match the Parameter interface, but we really just use 'should' internally. # Note that the should= method does all of the validation and such. def value=(value) self.should = value end end diff --git a/lib/puppet/resource.rb b/lib/puppet/resource.rb index 59e387d00..a2994c9f5 100644 --- a/lib/puppet/resource.rb +++ b/lib/puppet/resource.rb @@ -1,439 +1,436 @@ require 'puppet' require 'puppet/util/tagging' require 'puppet/util/pson' +require 'puppet/parameter' # The simplest resource class. Eventually it will function as the # base class for all resource-like behaviour. class Puppet::Resource # This stub class is only needed for serialization compatibility with 0.25.x. # Specifically, it exists to provide a compatibility API when using YAML # serialized objects loaded from StoreConfigs. Reference = Puppet::Resource include Puppet::Util::Tagging require 'puppet/resource/type_collection_helper' include Puppet::Resource::TypeCollectionHelper extend Puppet::Util::Pson include Enumerable attr_accessor :file, :line, :catalog, :exported, :virtual, :validate_parameters, :strict attr_reader :type, :title require 'puppet/indirector' extend Puppet::Indirector indirects :resource, :terminus_class => :ral ATTRIBUTES = [:file, :line, :exported] def self.from_pson(pson) raise ArgumentError, "No resource type provided in pson data" unless type = pson['type'] raise ArgumentError, "No resource title provided in pson data" unless title = pson['title'] resource = new(type, title) if params = pson['parameters'] params.each { |param, value| resource[param] = value } end if tags = pson['tags'] tags.each { |tag| resource.tag(tag) } end ATTRIBUTES.each do |a| if value = pson[a.to_s] resource.send(a.to_s + "=", value) end end resource.exported ||= false resource end def inspect "#{@type}[#{@title}]#{to_hash.inspect}" end def to_pson_data_hash data = ([:type, :title, :tags] + ATTRIBUTES).inject({}) do |hash, param| next hash unless value = self.send(param) hash[param.to_s] = value hash end data["exported"] ||= false params = self.to_hash.inject({}) do |hash, ary| param, value = ary # Don't duplicate the title as the namevar next hash if param == namevar and value == title hash[param] = Puppet::Resource.value_to_pson_data(value) hash end data["parameters"] = params unless params.empty? data end def self.value_to_pson_data(value) if value.is_a? Array value.map{|v| value_to_pson_data(v) } elsif value.is_a? Puppet::Resource value.to_s else value end end def yaml_property_munge(x) case x when Hash x.inject({}) { |h,kv| k,v = kv h[k] = self.class.value_to_pson_data(v) h } else self.class.value_to_pson_data(x) end end def to_pson(*args) to_pson_data_hash.to_pson(*args) end # Proxy these methods to the parameters hash. It's likely they'll # be overridden at some point, but this works for now. %w{has_key? keys length delete empty? <<}.each do |method| define_method(method) do |*args| parameters.send(method, *args) end end # Set a given parameter. Converts all passed names # to lower-case symbols. def []=(param, value) validate_parameter(param) if validate_parameters parameters[parameter_name(param)] = value end # Return a given parameter's value. Converts all passed names # to lower-case symbols. def [](param) parameters[parameter_name(param)] end def ==(other) return false unless other.respond_to?(:title) and self.type == other.type and self.title == other.title return false unless to_hash == other.to_hash true end # Compatibility method. def builtin? builtin_type? end # Is this a builtin resource type? def builtin_type? resource_type.is_a?(Class) end # Iterate over each param/value pair, as required for Enumerable. def each parameters.each { |p,v| yield p, v } end def include?(parameter) super || parameters.keys.include?( parameter_name(parameter) ) end # These two methods are extracted into a Helper # module, but file load order prevents me # from including them in the class, and I had weird # behaviour (i.e., sometimes it didn't work) when # I directly extended each resource with the helper. def environment Puppet::Node::Environment.new(@environment) end def environment=(env) if env.is_a?(String) or env.is_a?(Symbol) @environment = env else @environment = env.name end end %w{exported virtual strict}.each do |m| define_method(m+"?") do self.send(m) end end # Create our resource. def initialize(type, title = nil, attributes = {}) @parameters = {} # Set things like strictness first. attributes.each do |attr, value| next if attr == :parameters send(attr.to_s + "=", value) end @type, @title = extract_type_and_title(type, title) @type = munge_type_name(@type) if @type == "Class" @title = :main if @title == "" @title = munge_type_name(@title) end if params = attributes[:parameters] extract_parameters(params) end tag(self.type) tag(self.title) if valid_tag?(self.title) @reference = self # for serialization compatibility with 0.25.x if strict? and ! resource_type if @type == 'Class' raise ArgumentError, "Could not find declared class #{title}" else raise ArgumentError, "Invalid resource type #{type}" end end end def ref to_s end # Find our resource. def resolve return(catalog ? catalog.resource(to_s) : nil) end def resource_type case type when "Class"; known_resource_types.hostclass(title == :main ? "" : title) when "Node"; known_resource_types.node(title) else Puppet::Type.type(type.to_s.downcase.to_sym) || known_resource_types.definition(type) end end # Produce a simple hash of our parameters. def to_hash parse_title.merge parameters end def to_s "#{type}[#{title}]" end def uniqueness_key # Temporary kludge to deal with inconsistant use patters h = self.to_hash h[namevar] ||= h[:name] h[:name] ||= h[namevar] h.values_at(*key_attributes.sort_by { |k| k.to_s }) end def key_attributes return(resource_type.respond_to? :key_attributes) ? resource_type.key_attributes : [:name] end # Convert our resource to Puppet code. def to_manifest # Collect list of attributes to align => and move ensure first attr = parameters.keys attr_max = attr.inject(0) { |max,k| k.to_s.length > max ? k.to_s.length : max } attr.sort! if attr.first != :ensure && attr.include?(:ensure) attr.delete(:ensure) attr.unshift(:ensure) end attributes = attr.collect { |k| v = parameters[k] - if v.is_a? Array - " %-#{attr_max}s => %s,\n" % [ k, "[\'#{v.join("', '")}\']" ] - else - " %-#{attr_max}s => %s,\n" % [ k, "\'#{v}\'" ] - end + " %-#{attr_max}s => %s,\n" % [k, Puppet::Parameter.format_value_for_display(v)] }.join "%s { '%s':\n%s}" % [self.type.to_s.downcase, self.title, attributes] end def to_ref ref end # Convert our resource to a RAL resource instance. Creates component # instances for resource types that don't exist. def to_ral if typeklass = Puppet::Type.type(self.type) return typeklass.new(self) else return Puppet::Type::Component.new(self) end end # Translate our object to a backward-compatible transportable object. def to_trans if builtin_type? and type.downcase.to_s != "stage" result = to_transobject else result = to_transbucket end result.file = self.file result.line = self.line result end def to_trans_ref [type.to_s, title.to_s] end # Create an old-style TransObject instance, for builtin resource types. def to_transobject # Now convert to a transobject result = Puppet::TransObject.new(title, type) to_hash.each do |p, v| if v.is_a?(Puppet::Resource) v = v.to_trans_ref elsif v.is_a?(Array) v = v.collect { |av| av = av.to_trans_ref if av.is_a?(Puppet::Resource) av } end # If the value is an array with only one value, then # convert it to a single value. This is largely so that # the database interaction doesn't have to worry about # whether it returns an array or a string. result[p.to_s] = if v.is_a?(Array) and v.length == 1 v[0] else v end end result.tags = self.tags result end def name # this is potential namespace conflict # between the notion of an "indirector name" # and a "resource name" [ type, title ].join('/') end def to_resource self end def valid_parameter?(name) resource_type.valid_parameter?(name) end def validate_parameter(name) raise ArgumentError, "Invalid parameter #{name}" unless valid_parameter?(name) end private # Produce a canonical method name. def parameter_name(param) param = param.to_s.downcase.to_sym if param == :name and n = namevar param = namevar end param end # The namevar for our resource type. If the type doesn't exist, # always use :name. def namevar if builtin_type? and t = resource_type and t.key_attributes.length == 1 t.key_attributes.first else :name end end # Create an old-style TransBucket instance, for non-builtin resource types. def to_transbucket bucket = Puppet::TransBucket.new([]) bucket.type = self.type bucket.name = self.title # TransBuckets don't support parameters, which is why they're being deprecated. bucket end def extract_parameters(params) params.each do |param, value| validate_parameter(param) if strict? self[param] = value end end def extract_type_and_title(argtype, argtitle) if (argtitle || argtype) =~ /^([^\[\]]+)\[(.+)\]$/m then [ $1, $2 ] elsif argtitle then [ argtype, argtitle ] elsif argtype.is_a?(Puppet::Type) then [ argtype.class.name, argtype.title ] elsif argtype.is_a?(Hash) then raise ArgumentError, "Puppet::Resource.new does not take a hash as the first argument. "+ "Did you mean (#{(argtype[:type] || argtype["type"]).inspect}, #{(argtype[:title] || argtype["title"]).inspect }) ?" else raise ArgumentError, "No title provided and #{argtype.inspect} is not a valid resource reference" end end def munge_type_name(value) return :main if value == :main return "Class" if value == "" or value.nil? or value.to_s.downcase == "component" value.to_s.split("::").collect { |s| s.capitalize }.join("::") end def parse_title h = {} type = resource_type if type.respond_to? :title_patterns type.title_patterns.each { |regexp, symbols_and_lambdas| if captures = regexp.match(title.to_s) symbols_and_lambdas.zip(captures[1..-1]).each { |symbol_and_lambda,capture| sym, lam = symbol_and_lambda #self[sym] = lam.call(capture) h[sym] = lam.call(capture) } return h end } else return { :name => title.to_s } end end def parameters # @parameters could have been loaded from YAML, causing it to be nil (by # bypassing initialize). @parameters ||= {} end end diff --git a/spec/unit/parameter_spec.rb b/spec/unit/parameter_spec.rb index 1ed211957..0504de35d 100755 --- a/spec/unit/parameter_spec.rb +++ b/spec/unit/parameter_spec.rb @@ -1,160 +1,184 @@ #!/usr/bin/env rspec require 'spec_helper' require 'puppet/parameter' describe Puppet::Parameter do before do @class = Class.new(Puppet::Parameter) do @name = :foo end @class.initvars @resource = mock 'resource' @resource.stub_everything @parameter = @class.new :resource => @resource end it "should create a value collection" do @class = Class.new(Puppet::Parameter) @class.value_collection.should be_nil @class.initvars @class.value_collection.should be_instance_of(Puppet::Parameter::ValueCollection) end it "should return its name as a string when converted to a string" do @parameter.to_s.should == @parameter.name.to_s end [:line, :file, :version].each do |data| it "should return its resource's #{data} as its #{data}" do @resource.expects(data).returns "foo" @parameter.send(data).should == "foo" end end it "should return the resource's tags plus its name as its tags" do @resource.expects(:tags).returns %w{one two} @parameter.tags.should == %w{one two foo} end it "should provide source_descriptors" do @resource.expects(:line).returns 10 @resource.expects(:file).returns "file" @resource.expects(:tags).returns %w{one two} @parameter.source_descriptors.should == {:tags=>["one", "two", "foo"], :path=>"//foo", :file => "file", :line => 10} end describe "when returning the value" do it "should return nil if no value is set" do @parameter.value.should be_nil end it "should validate the value" do @parameter.expects(:validate).with("foo") @parameter.value = "foo" end it "should munge the value and use any result as the actual value" do @parameter.expects(:munge).with("foo").returns "bar" @parameter.value = "foo" @parameter.value.should == "bar" end it "should unmunge the value when accessing the actual value" do @parameter.class.unmunge do |value| value.to_sym end @parameter.value = "foo" @parameter.value.should == :foo end it "should return the actual value by default when unmunging" do @parameter.unmunge("bar").should == "bar" end it "should return any set value" do @parameter.value = "foo" @parameter.value.should == "foo" end end describe "when validating values" do it "should do nothing if no values or regexes have been defined" do @parameter.validate("foo") end it "should catch abnormal failures thrown during validation" do @class.validate { |v| raise "This is broken" } lambda { @parameter.validate("eh") }.should raise_error(Puppet::DevError) end it "should fail if the value is not a defined value or alias and does not match a regex" do @class.newvalues :foo lambda { @parameter.validate("bar") }.should raise_error(Puppet::Error) end it "should succeed if the value is one of the defined values" do @class.newvalues :foo lambda { @parameter.validate(:foo) }.should_not raise_error(ArgumentError) end it "should succeed if the value is one of the defined values even if the definition uses a symbol and the validation uses a string" do @class.newvalues :foo lambda { @parameter.validate("foo") }.should_not raise_error(ArgumentError) end it "should succeed if the value is one of the defined values even if the definition uses a string and the validation uses a symbol" do @class.newvalues "foo" lambda { @parameter.validate(:foo) }.should_not raise_error(ArgumentError) end it "should succeed if the value is one of the defined aliases" do @class.newvalues :foo @class.aliasvalue :bar, :foo lambda { @parameter.validate("bar") }.should_not raise_error(ArgumentError) end it "should succeed if the value matches one of the regexes" do @class.newvalues %r{\d} lambda { @parameter.validate("10") }.should_not raise_error(ArgumentError) end end describe "when munging values" do it "should do nothing if no values or regexes have been defined" do @parameter.munge("foo").should == "foo" end it "should catch abnormal failures thrown during munging" do @class.munge { |v| raise "This is broken" } lambda { @parameter.munge("eh") }.should raise_error(Puppet::DevError) end it "should return return any matching defined values" do @class.newvalues :foo, :bar @parameter.munge("foo").should == :foo end it "should return any matching aliases" do @class.newvalues :foo @class.aliasvalue :bar, :foo @parameter.munge("bar").should == :foo end it "should return the value if it matches a regex" do @class.newvalues %r{\w} @parameter.munge("bar").should == "bar" end it "should return the value if no other option is matched" do @class.newvalues :foo @parameter.munge("bar").should == "bar" end end describe "when logging" do it "should use its resource's log level and the provided message" do @resource.expects(:[]).with(:loglevel).returns :notice @parameter.expects(:send_log).with(:notice, "mymessage") @parameter.log "mymessage" end end + + describe ".format_value_for_display" do + it 'should format strings appropriately' do + described_class.format_value_for_display('foo').should == "'foo'" + end + + it 'should format numbers appropriately' do + described_class.format_value_for_display(1).should == "'1'" + end + + it 'should format symbols appropriately' do + described_class.format_value_for_display(:bar).should == "'bar'" + end + + it 'should format arrays appropriately' do + described_class.format_value_for_display([1, 'foo', :bar]).should == "['1', 'foo', 'bar']" + end + + it 'should format arrays with nested data appropriately' do + described_class.format_value_for_display( + [1, 'foo', :bar, [1, 2, 3]] + ).should == "['1', 'foo', 'bar', ['1', '2', '3']]" + end + end end