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#!/usr/bin/env ruby
require 'spec_helper'
require 'puppet/network/format'
# A class with all of the necessary
# hooks.
class FormatRenderer
def self.to_multiple_my_format(list)
end
def self.from_multiple_my_format(text)
end
def self.from_my_format(text)
end
def to_my_format
end
end
describe Puppet::Network::Format do
describe "when initializing" do
it "should require a name" do
lambda { Puppet::Network::Format.new }.should raise_error(ArgumentError)
end
it "should be able to provide its name" do
Puppet::Network::Format.new(:my_format).name.should == :my_format
end
it "should always convert its name to a downcased symbol" do
Puppet::Network::Format.new(:My_Format).name.should == :my_format
end
it "should be able to set its downcased mime type at initialization" do
format = Puppet::Network::Format.new(:my_format, :mime => "Foo/Bar")
format.mime.should == "foo/bar"
end
it "should default to text plus the name of the format as the mime type" do
Puppet::Network::Format.new(:my_format).mime.should == "text/my_format"
end
it "should fail if unsupported options are provided" do
lambda { Puppet::Network::Format.new(:my_format, :foo => "bar") }.should raise_error(ArgumentError)
end
end
describe "instances" do
before do
@format = Puppet::Network::Format.new(:my_format)
end
it "should support being confined" do
@format.should respond_to(:confine)
end
it "should not be considered suitable if confinement conditions are not met" do
@format.confine :true => false
@format.should_not be_suitable
end
it "should be able to determine if a class is supported" do
@format.should respond_to(:supported?)
end
it "should consider a class to be supported if it has the individual and multiple methods for rendering and interning" do
@format.should be_supported(FormatRenderer)
end
it "should default to its required methods being the individual and multiple methods for rendering and interning" do
Puppet::Network::Format.new(:foo).required_methods.sort { |a,b| a.to_s <=> b.to_s }.should == [:intern_method, :intern_multiple_method, :render_multiple_method, :render_method].sort { |a,b| a.to_s <=> b.to_s }
end
it "should consider a class supported if the provided class has all required methods present" do
format = Puppet::Network::Format.new(:foo)
[:intern_method, :intern_multiple_method, :render_multiple_method, :render_method].each do |method|
format.expects(:required_method_present?).with { |name, klass, type| name == method and klass == String }.returns true
end
format.should be_required_methods_present(String)
end
it "should consider a class not supported if any required methods are missing from the provided class" do
format = Puppet::Network::Format.new(:foo)
format.stubs(:required_method_present?).returns true
format.expects(:required_method_present?).with { |name, *args| name == :intern_method }.returns false
format.should_not be_required_methods_present(String)
end
it "should be able to specify the methods required for support" do
Puppet::Network::Format.new(:foo, :required_methods => [:render_method, :intern_method]).required_methods.should == [:render_method, :intern_method]
end
it "should only test for required methods if specific methods are specified as required" do
format = Puppet::Network::Format.new(:foo, :required_methods => [:intern_method])
format.expects(:required_method_present?).with { |name, klass, type| name == :intern_method }
format.required_methods_present?(String)
end
it "should not consider a class supported unless the format is suitable" do
@format.expects(:suitable?).returns false
@format.should_not be_supported(FormatRenderer)
end
it "should always downcase mimetypes" do
@format.mime = "Foo/Bar"
@format.mime.should == "foo/bar"
end
it "should support having a weight" do
@format.should respond_to(:weight)
end
it "should default to a weight of of 5" do
@format.weight.should == 5
end
it "should be able to override its weight at initialization" do
Puppet::Network::Format.new(:foo, :weight => 1).weight.should == 1
end
it "should default to its extension being equal to its name" do
Puppet::Network::Format.new(:foo).extension.should == "foo"
end
it "should support overriding the extension" do
Puppet::Network::Format.new(:foo, :extension => "bar").extension.should == "bar"
end
[:intern_method, :intern_multiple_method, :render_multiple_method, :render_method].each do |method|
it "should allow assignment of the #{method}" do
Puppet::Network::Format.new(:foo, method => :foo).send(method).should == :foo
end
end
end
describe "when converting between instances and formatted text" do
before do
@format = Puppet::Network::Format.new(:my_format)
@instance = FormatRenderer.new
end
it "should have a method for rendering a single instance" do
@format.should respond_to(:render)
end
it "should have a method for rendering multiple instances" do
@format.should respond_to(:render_multiple)
end
it "should have a method for interning text" do
@format.should respond_to(:intern)
end
it "should have a method for interning text into multiple instances" do
@format.should respond_to(:intern_multiple)
end
it "should return the results of calling the instance-specific render method if the method is present" do
@instance.expects(:to_my_format).returns "foo"
@format.render(@instance).should == "foo"
end
it "should return the results of calling the class-specific render_multiple method if the method is present" do
@instance.class.expects(:to_multiple_my_format).returns ["foo"]
@format.render_multiple([@instance]).should == ["foo"]
end
it "should return the results of calling the class-specific intern method if the method is present" do
FormatRenderer.expects(:from_my_format).with("foo").returns @instance
@format.intern(FormatRenderer, "foo").should equal(@instance)
end
it "should return the results of calling the class-specific intern_multiple method if the method is present" do
FormatRenderer.expects(:from_multiple_my_format).with("foo").returns [@instance]
@format.intern_multiple(FormatRenderer, "foo").should == [@instance]
end
it "should fail if asked to render and the instance does not respond to 'to_<format>'" do
lambda { @format.render("foo") }.should raise_error(NotImplementedError)
end
it "should fail if asked to intern and the class does not respond to 'from_<format>'" do
lambda { @format.intern(String, "foo") }.should raise_error(NotImplementedError)
end
it "should fail if asked to intern multiple and the class does not respond to 'from_multiple_<format>'" do
lambda { @format.intern_multiple(String, "foo") }.should raise_error(NotImplementedError)
end
it "should fail if asked to render multiple and the instance does not respond to 'to_multiple_<format>'" do
lambda { @format.render_multiple(["foo", "bar"]) }.should raise_error(NotImplementedError)
end
end
end
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