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require 'puppettest'
require 'puppet/rails'
module PuppetTest::ParserTesting
include PuppetTest
AST = Puppet::Parser::AST
Compiler = Puppet::Parser::Compiler
# A fake class that we can use for testing evaluation.
class FakeAST
attr_writer :evaluate
def evaluated?
@evaluated
end
def evaluate(*args)
@evaluated = true
@evaluate
end
def initialize(val = nil)
@evaluate = val if val
end
def reset
@evaluated = nil
end
def safeevaluate(*args)
evaluate
end
def evaluate_match(othervalue, scope, options={})
value = evaluate
othervalue == value
end
end
def astarray(*args)
AST::ASTArray.new(
:children => args
)
end
def mkcompiler(parser = nil)
node = mknode
Compiler.new(node)
end
def mknode(name = nil)
require 'puppet/node'
Puppet::Node.new(name || "nodename")
end
def mkparser
Puppet::Node::Environment.clear
Puppet::Parser::Parser.new(Puppet::Node::Environment.new)
end
def mkscope(hash = {})
parser ||= mkparser
compiler ||= mkcompiler
compiler.topscope.source = (parser.find_hostclass("", "") || parser.newclass(""))
raise "Could not find source for scope" unless compiler.topscope.source
# Make the 'main' stuff
compiler.send(:evaluate_main)
compiler.topscope
end
def classobj(name, hash = {})
hash[:file] ||= __FILE__
hash[:line] ||= __LINE__
hash[:type] ||= name
AST::HostClass.new(hash)
end
def tagobj(*names)
args = {}
newnames = names.collect do |name|
if name.is_a? AST
name
else
nameobj(name)
end
end
args[:type] = astarray(*newnames)
assert_nothing_raised("Could not create tag #{names.inspect}") {
return AST::Tag.new(args)
}
end
def resourcedef(type, title, params)
title = stringobj(title) unless title.is_a?(AST)
instance = AST::ResourceInstance.new(:title => title, :parameters => resourceparams(params))
assert_nothing_raised("Could not create #{type} #{title}") {
return AST::Resource.new(
:file => __FILE__,
:line => __LINE__,
:type => type,
:instances => AST::ASTArray.new(:children => [instance])
)
}
end
def virt_resourcedef(*args)
res = resourcedef(*args)
res.virtual = true
res
end
def resourceoverride(type, title, params)
assert_nothing_raised("Could not create #{type} #{name}") {
return AST::ResourceOverride.new(
:file => __FILE__,
:line => __LINE__,
:object => resourceref(type, title),
:parameters => resourceparams(params)
)
}
end
def resourceref(type, title)
assert_nothing_raised("Could not create #{type} #{title}") {
return AST::ResourceReference.new(
:file => __FILE__,
:line => __LINE__,
:type => type,
:title => stringobj(title)
)
}
end
def fileobj(path, hash = {"owner" => "root"})
assert_nothing_raised("Could not create file #{path}") {
return resourcedef("file", path, hash)
}
end
def nameobj(name)
assert_nothing_raised("Could not create name #{name}") {
return AST::Name.new(
:file => tempfile,
:line => rand(100),
:value => name
)
}
end
def typeobj(name)
assert_nothing_raised("Could not create type #{name}") {
return AST::Type.new(
:file => tempfile,
:line => rand(100),
:value => name
)
}
end
def nodedef(name)
assert_nothing_raised("Could not create node #{name}") {
return AST::NodeDef.new(
:file => tempfile,
:line => rand(100),
:names => nameobj(name),
:code => AST::ASTArray.new(
:children => [
varobj("#{name}var", "#{name}value"),
fileobj("/#{name}")
]
)
)
}
end
def resourceparams(hash)
assert_nothing_raised("Could not create resource instance") {
params = hash.collect { |param, value|
resourceparam(param, value)
}
return AST::ASTArray.new(
:file => tempfile,
:line => rand(100),
:children => params
)
}
end
def resourceparam(param, value)
# Allow them to pass non-strings in
value = stringobj(value) if value.is_a?(String)
assert_nothing_raised("Could not create param #{param}") {
return AST::ResourceParam.new(
:file => tempfile,
:line => rand(100),
:param => param,
:value => value
)
}
end
def stringobj(value)
AST::String.new(
:file => tempfile,
:line => rand(100),
:value => value
)
end
def varobj(name, value)
value = stringobj(value) unless value.is_a? AST
assert_nothing_raised("Could not create #{name} code") {
return AST::VarDef.new(
:file => tempfile,
:line => rand(100),
:name => nameobj(name),
:value => value
)
}
end
def varref(name)
assert_nothing_raised("Could not create #{name} variable") {
return AST::Variable.new(
:file => __FILE__,
:line => __LINE__,
:value => name
)
}
end
def argobj(name, value)
assert_nothing_raised("Could not create #{name} compargument") {
return AST::CompArgument.new(
:children => [nameobj(name), stringobj(value)]
)
}
end
def defaultobj(type, params)
pary = []
params.each { |p,v|
pary << AST::ResourceParam.new(
:file => __FILE__,
:line => __LINE__,
:param => p,
:value => stringobj(v)
)
}
past = AST::ASTArray.new(
:file => __FILE__,
:line => __LINE__,
:children => pary
)
assert_nothing_raised("Could not create defaults for #{type}") {
return AST::ResourceDefaults.new(
:file => __FILE__,
:line => __LINE__,
:type => type,
:parameters => past
)
}
end
def taggedobj(name, ftype = :statement)
functionobj("tagged", name, ftype)
end
def functionobj(function, name, ftype = :statement)
func = nil
assert_nothing_raised do
func = Puppet::Parser::AST::Function.new(
:name => function,
:ftype => ftype,
:arguments => AST::ASTArray.new(
:children => [nameobj(name)]
)
)
end
func
end
# This assumes no nodes
def assert_creates(manifest, *files)
oldmanifest = Puppet[:manifest]
Puppet[:manifest] = manifest
catalog = Puppet::Parser::Compiler.new(mknode).compile.to_ral
catalog.apply
files.each do |file|
assert(FileTest.exists?(file), "Did not create #{file}")
end
ensure
Puppet[:manifest] = oldmanifest
end
def mk_transobject(file = "/etc/passwd")
obj = nil
assert_nothing_raised {
obj = Puppet::TransObject.new("file", file)
obj["owner"] = "root"
obj["mode"] = "644"
}
obj
end
def mk_transbucket(*resources)
bucket = nil
assert_nothing_raised {
bucket = Puppet::TransBucket.new
bucket.name = "yayname"
bucket.type = "yaytype"
}
resources.each { |o| bucket << o }
bucket
end
# Make a tree of resources, yielding if desired
def mk_transtree(depth = 4, width = 2)
top = nil
assert_nothing_raised {
top = Puppet::TransBucket.new
top.name = "top"
top.type = "bucket"
}
bucket = top
file = tempfile
depth.times do |i|
resources = []
width.times do |j|
path = tempfile + i.to_s
obj = Puppet::TransObject.new("file", path)
obj["owner"] = "root"
obj["mode"] = "644"
# Yield, if they want
yield(obj, i, j) if block_given?
resources << obj
end
newbucket = mk_transbucket(*resources)
bucket.push newbucket
bucket = newbucket
end
top
end
# Take a list of AST resources, evaluate them, and return the results
def assert_evaluate(children)
top = nil
assert_nothing_raised("Could not create top object") {
top = AST::ASTArray.new(
:children => children
)
}
trans = nil
scope = nil
assert_nothing_raised {
scope = Puppet::Parser::Scope.new
trans = scope.evaluate(:ast => top)
}
trans
end
end
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