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require 'spec_helper'
require 'puppet/pops'
require 'puppet/loaders'
require 'puppet_spec/pops'
require 'puppet_spec/scope'
module FunctionAPISpecModule
class TestDuck
end
class TestFunctionLoader < Puppet::Pops::Loader::StaticLoader
def initialize
@constants = {}
end
def add_function(name, function)
set_entry(Puppet::Pops::Loader::TypedName.new(:function, name), function, __FILE__)
end
def add_type(name, type)
set_entry(Puppet::Pops::Loader::TypedName.new(:type, name), type, __FILE__)
end
def set_entry(typed_name, value, origin = nil)
@constants[typed_name] = Puppet::Pops::Loader::Loader::NamedEntry.new(typed_name, value, origin)
end
# override StaticLoader
def load_constant(typed_name)
@constants[typed_name]
end
end
end
describe 'the 4x function api' do
include FunctionAPISpecModule
include PuppetSpec::Pops
include PuppetSpec::Scope
let(:loader) { FunctionAPISpecModule::TestFunctionLoader.new }
it 'allows a simple function to be created without dispatch declaration' do
f = Puppet::Functions.create_function('min') do
def min(x,y)
x <= y ? x : y
end
end
# the produced result is a Class inheriting from Function
expect(f.class).to be(Class)
expect(f.superclass).to be(Puppet::Functions::Function)
# and this class had the given name (not a real Ruby class name)
expect(f.name).to eql('min')
end
it 'refuses to create functions that are not based on the Function class' do
expect do
Puppet::Functions.create_function('testing', Object) {}
end.to raise_error(ArgumentError, /function 'testing'.*Functions must be based on Puppet::Pops::Functions::Function. Got Object/)
end
it 'refuses to create functions with parameters that are not named with a symbol' do
expect do
Puppet::Functions.create_function('testing') do
dispatch :test do
param 'Integer', 'not_symbol'
end
def test(x)
end
end
end.to raise_error(ArgumentError, /Parameter name argument must be a Symbol/)
end
it 'a function without arguments can be defined and called without dispatch declaration' do
f = create_noargs_function_class()
func = f.new(:closure_scope, :loader)
expect(func.call({})).to eql(10)
end
it 'an error is raised when calling a no arguments function with arguments' do
f = create_noargs_function_class()
func = f.new(:closure_scope, :loader)
expect{func.call({}, 'surprise')}.to raise_error(ArgumentError, "'test' expects no arguments, got 1")
end
it 'a simple function can be called' do
f = create_min_function_class()
# TODO: Bogus parameters, not yet used
func = f.new(:closure_scope, :loader)
expect(func.is_a?(Puppet::Functions::Function)).to be_truthy
expect(func.call({}, 10,20)).to eql(10)
end
it 'an error is raised if called with too few arguments' do
f = create_min_function_class()
# TODO: Bogus parameters, not yet used
func = f.new(:closure_scope, :loader)
expect(func.is_a?(Puppet::Functions::Function)).to be_truthy
expect do
func.call({}, 10)
end.to raise_error(ArgumentError, "'min' expects 2 arguments, got 1")
end
it 'an error is raised if called with too many arguments' do
f = create_min_function_class()
# TODO: Bogus parameters, not yet used
func = f.new(:closure_scope, :loader)
expect(func.is_a?(Puppet::Functions::Function)).to be_truthy
expect do
func.call({}, 10, 10, 10)
end.to raise_error(ArgumentError, "'min' expects 2 arguments, got 3")
end
it 'correct dispatch is chosen when zero parameter dispatch exists' do
f = create_function_with_no_parameter_dispatch
func = f.new(:closure_scope, :loader)
expect(func.is_a?(Puppet::Functions::Function)).to be_truthy
expect(func.call({}, 1)).to eql(1)
end
it 'an error is raised if simple function-name and method are not matched' do
expect do
create_badly_named_method_function_class()
end.to raise_error(ArgumentError, /Function Creation Error, cannot create a default dispatcher for function 'mix', no method with this name found/)
end
it 'the implementation separates dispatchers for different functions' do
# this tests that meta programming / construction puts class attributes in the correct class
f1 = create_min_function_class()
f2 = create_max_function_class()
d1 = f1.dispatcher
d2 = f2.dispatcher
expect(d1).to_not eql(d2)
expect(d1.dispatchers[0]).to_not eql(d2.dispatchers[0])
end
context 'when using regular dispatch' do
it 'a function can be created using dispatch and called' do
f = create_min_function_class_using_dispatch()
func = f.new(:closure_scope, :loader)
expect(func.call({}, 3,4)).to eql(3)
end
it 'an error is raised with reference to given parameter names when called with mis-matched arguments' do
f = create_min_function_class_using_dispatch()
# TODO: Bogus parameters, not yet used
func = f.new(:closure_scope, :loader)
expect(func.is_a?(Puppet::Functions::Function)).to be_truthy
expect do
func.call({}, 10, 'ten')
end.to raise_error(ArgumentError, "'min' parameter 'b' expects a Numeric value, got String")
end
it 'an error includes optional indicators for last element' do
f = create_function_with_optionals_and_repeated_via_multiple_dispatch()
# TODO: Bogus parameters, not yet used
func = f.new(:closure_scope, :loader)
expect(func.is_a?(Puppet::Functions::Function)).to be_truthy
expect do
func.call({}, 3, 10, 3, "4")
end.to raise_error(ArgumentError, "'min' expects one of:
(Numeric x, Numeric y, Numeric a?, Numeric b?, Numeric c*)
rejected: parameter 'b' expects a Numeric value, got String
(String x, String y, String a+)
rejected: parameter 'x' expects a String value, got Integer")
end
it 'can create optional repeated parameter' do
f = create_function_with_repeated
func = f.new(:closure_scope, :loader)
expect(func.call({})).to eql(0)
expect(func.call({}, 1)).to eql(1)
expect(func.call({}, 1, 2)).to eql(2)
f = create_function_with_optional_repeated
func = f.new(:closure_scope, :loader)
expect(func.call({})).to eql(0)
expect(func.call({}, 1)).to eql(1)
expect(func.call({}, 1, 2)).to eql(2)
end
it 'can create required repeated parameter' do
f = create_function_with_required_repeated
func = f.new(:closure_scope, :loader)
expect(func.call({}, 1)).to eql(1)
expect(func.call({}, 1, 2)).to eql(2)
expect { func.call({}) }.to raise_error(ArgumentError, "'count_args' expects at least 1 argument, got none")
end
it 'can create scope_param followed by repeated parameter' do
f = create_function_with_scope_param_required_repeat
func = f.new(:closure_scope, :loader)
expect(func.call({}, 'yay', 1,2,3)).to eql([{}, 'yay',1,2,3])
end
it 'a function can use inexact argument mapping' do
f = create_function_with_inexact_dispatch
func = f.new(:closure_scope, :loader)
expect(func.call({}, 3.0,4.0,5.0)).to eql([Float, Float, Float])
expect(func.call({}, 'Apple', 'Banana')).to eql([String, String])
end
it 'a function can be created using dispatch and called' do
f = create_min_function_class_disptaching_to_two_methods()
func = f.new(:closure_scope, :loader)
expect(func.call({}, 3,4)).to eql(3)
expect(func.call({}, 'Apple', 'Banana')).to eql('Apple')
end
it 'a function can not be created with parameters declared after a repeated parameter' do
expect { create_function_with_param_after_repeated }.to raise_error(ArgumentError,
/function 't1'.*Parameters cannot be added after a repeated parameter/)
end
it 'a function can not be created with required parameters declared after optional ones' do
expect { create_function_with_rq_after_opt }.to raise_error(ArgumentError,
/function 't1'.*A required parameter cannot be added after an optional parameter/)
end
it 'a function can not be created with required repeated parameters declared after optional ones' do
expect { create_function_with_rq_repeated_after_opt }.to raise_error(ArgumentError,
/function 't1'.*A required repeated parameter cannot be added after an optional parameter/)
end
it 'an error is raised with reference to multiple methods when called with mis-matched arguments' do
f = create_min_function_class_disptaching_to_two_methods()
# TODO: Bogus parameters, not yet used
func = f.new(:closure_scope, :loader)
expect(func.is_a?(Puppet::Functions::Function)).to be_truthy
expect do
func.call({}, 10, '20')
end.to raise_error(ArgumentError, "'min' expects one of:
(Numeric a, Numeric b)
rejected: parameter 'b' expects a Numeric value, got String
(String s1, String s2)
rejected: parameter 's1' expects a String value, got Integer")
end
context 'an argument_mismatch handler' do
let(:func) { create_function_with_mismatch_handler.new(:closure_scope, :loader) }
it 'is called on matching arguments' do
expect { func.call({}, '1') }.to raise_error(ArgumentError, "'test' It's not OK to pass a string")
end
it 'is not called unless arguments are matching' do
expect { func.call({}, '1', 3) }.to raise_error(ArgumentError, "'test' expects 1 argument, got 2")
end
it 'is not included in a signature mismatch description' do
expect { func.call({}, 2.3) }.to raise_error { |e| expect(e.message).not_to match(/String/) }
end
end
context 'when requesting a type' do
it 'responds with a Callable for a single signature' do
tf = Puppet::Pops::Types::TypeFactory
fc = create_min_function_class_using_dispatch()
t = fc.dispatcher.to_type
expect(t.class).to be(Puppet::Pops::Types::PCallableType)
expect(t.param_types.class).to be(Puppet::Pops::Types::PTupleType)
expect(t.param_types.types).to eql([tf.numeric(), tf.numeric()])
expect(t.block_type).to be_nil
end
it 'responds with a Variant[Callable...] for multiple signatures' do
tf = Puppet::Pops::Types::TypeFactory
fc = create_min_function_class_disptaching_to_two_methods()
t = fc.dispatcher.to_type
expect(t.class).to be(Puppet::Pops::Types::PVariantType)
expect(t.types.size).to eql(2)
t1 = t.types[0]
expect(t1.param_types.class).to be(Puppet::Pops::Types::PTupleType)
expect(t1.param_types.types).to eql([tf.numeric(), tf.numeric()])
expect(t1.block_type).to be_nil
t2 = t.types[1]
expect(t2.param_types.class).to be(Puppet::Pops::Types::PTupleType)
expect(t2.param_types.types).to eql([tf.string(), tf.string()])
expect(t2.block_type).to be_nil
end
end
context 'supports lambdas' do
it 'such that, a required block can be defined and given as an argument' do
the_function = create_function_with_required_block_all_defaults().new(:closure_scope, :loader)
result = the_function.call({}, 7) { |a,b| a < b ? a : b }
expect(result).to eq(7)
end
it 'such that, a missing required block when called raises an error' do
the_function = create_function_with_required_block_all_defaults().new(:closure_scope, :loader)
expect do
the_function.call({}, 10)
end.to raise_error(ArgumentError, "'test' expects a block")
end
it 'such that, an optional block can be defined and given as an argument' do
the_function = create_function_with_optional_block_all_defaults().new(:closure_scope, :loader)
result = the_function.call({}, 4) { |a,b| a < b ? a : b }
expect(result).to eql(4)
end
it 'such that, an optional block can be omitted when called and gets the value nil' do
the_function = create_function_with_optional_block_all_defaults().new(:closure_scope, :loader)
expect(the_function.call({}, 2)).to be_nil
end
it 'such that, a scope can be injected and a block can be used' do
the_function = create_function_with_scope_required_block_all_defaults().new(:closure_scope, :loader)
expect(the_function.call({}, 1) { |a,b| a < b ? a : b }).to eql(1)
end
end
context 'provides signature information' do
it 'about capture rest (varargs)' do
fc = create_function_with_optionals_and_repeated
signatures = fc.signatures
expect(signatures.size).to eql(1)
signature = signatures[0]
expect(signature.last_captures_rest?).to be_truthy
end
it 'about optional and required parameters' do
fc = create_function_with_optionals_and_repeated
signature = fc.signatures[0]
expect(signature.args_range).to eql( [2, Float::INFINITY ] )
expect(signature.infinity?(signature.args_range[1])).to be_truthy
end
it 'about block not being allowed' do
fc = create_function_with_optionals_and_repeated
signature = fc.signatures[0]
expect(signature.block_range).to eql( [ 0, 0 ] )
expect(signature.block_type).to be_nil
end
it 'about required block' do
fc = create_function_with_required_block_all_defaults
signature = fc.signatures[0]
expect(signature.block_range).to eql( [ 1, 1 ] )
expect(signature.block_type).to_not be_nil
end
it 'about optional block' do
fc = create_function_with_optional_block_all_defaults
signature = fc.signatures[0]
expect(signature.block_range).to eql( [ 0, 1 ] )
expect(signature.block_type).to_not be_nil
end
it 'about the type' do
fc = create_function_with_optional_block_all_defaults
signature = fc.signatures[0]
expect(signature.type.class).to be(Puppet::Pops::Types::PCallableType)
end
it 'about parameter names obtained from ruby introspection' do
fc = create_min_function_class
signature = fc.signatures[0]
expect(signature.parameter_names).to eql(['x', 'y'])
end
it 'about parameter names specified with dispatch' do
fc = create_min_function_class_using_dispatch
signature = fc.signatures[0]
expect(signature.parameter_names).to eql([:a, :b])
end
it 'about block_name when it is *not* given in the definition' do
# neither type, nor name
fc = create_function_with_required_block_all_defaults
signature = fc.signatures[0]
expect(signature.block_name).to eql(:block)
# no name given, only type
fc = create_function_with_required_block_given_type
signature = fc.signatures[0]
expect(signature.block_name).to eql(:block)
end
it 'about block_name when it *is* given in the definition' do
# neither type, nor name
fc = create_function_with_required_block_default_type
signature = fc.signatures[0]
expect(signature.block_name).to eql(:the_block)
# no name given, only type
fc = create_function_with_required_block_fully_specified
signature = fc.signatures[0]
expect(signature.block_name).to eql(:the_block)
end
end
context 'supports calling other functions' do
before(:all) do
Puppet.push_context( {:loaders => Puppet::Pops::Loaders.new(Puppet::Node::Environment.create(:testing, []))})
end
after(:all) do
Puppet.pop_context()
end
it 'such that, other functions are callable by name' do
fc = Puppet::Functions.create_function('test') do
def test()
# Call a function available in the puppet system
call_function('assert_type', 'Integer', 10)
end
end
# initiate the function the same way the loader initiates it
f = fc.new(:closure_scope, Puppet.lookup(:loaders).puppet_system_loader)
expect(f.call({})).to eql(10)
end
it 'such that, calling a non existing function raises an error' do
fc = Puppet::Functions.create_function('test') do
def test()
# Call a function not available in the puppet system
call_function('no_such_function', 'Integer', 'hello')
end
end
# initiate the function the same way the loader initiates it
f = fc.new(:closure_scope, Puppet.lookup(:loaders).puppet_system_loader)
expect{f.call({})}.to raise_error(ArgumentError, "Function test(): Unknown function: 'no_such_function'")
end
end
context 'supports calling ruby functions with lambda from puppet' do
before(:all) do
Puppet.push_context( {:loaders => Puppet::Pops::Loaders.new(Puppet::Node::Environment.create(:testing, []))})
end
after(:all) do
Puppet.pop_context()
end
before(:each) do
Puppet[:strict_variables] = true
end
let(:parser) { Puppet::Pops::Parser::EvaluatingParser.new }
let(:node) { 'node.example.com' }
let(:scope) { s = create_test_scope_for_node(node); s }
let(:loader) { Puppet::Pops::Loaders.find_loader(nil) }
it 'function with required block can be called' do
# construct ruby function to call
fc = Puppet::Functions.create_function('testing::test') do
dispatch :test do
param 'Integer', :x
# block called 'the_block', and using "all_callables"
required_block_param #(all_callables(), 'the_block')
end
def test(x)
# call the block with x
yield(x)
end
end
# add the function to the loader (as if it had been loaded from somewhere)
the_loader = loader
f = fc.new({}, the_loader)
loader.set_entry(Puppet::Pops::Loader::TypedName.new(:function, 'testing::test'), f)
# evaluate a puppet call
source = "testing::test(10) |$x| { $x+1 }"
program = parser.parse_string(source, __FILE__)
expect(Puppet::Pops::Adapters::LoaderAdapter).to receive(:loader_for_model_object).at_least(:once).and_return(the_loader)
expect(parser.evaluate(scope, program)).to eql(11)
end
end
context 'reports meaningful errors' do
let(:parser) { Puppet::Pops::Parser::EvaluatingParser.new }
it 'syntax error in local type is reported with puppet source, puppet location, and ruby file containing function' do
the_loader = loader()
here = get_binding(the_loader)
expect do
eval(<<-CODE, here)
Puppet::Functions.create_function('testing::test') do
local_types do
type 'MyType += Array[Integer]'
end
dispatch :test do
param 'MyType', :x
end
def test(x)
x
end
end
CODE
end.to raise_error(/MyType \+\= Array.*<Syntax error at '\+\=' \(line: 1, column: [0-9]+\)>.*functions4_spec\.rb.*/m)
# Note that raised error reports this spec file as the function source since the function is defined here
end
it 'syntax error in param type is reported with puppet source, puppet location, and ruby file containing function' do
the_loader = loader()
here = get_binding(the_loader)
expect do
eval(<<-CODE, here)
Puppet::Functions.create_function('testing::test') do
dispatch :test do
param 'Array[1+=1]', :x
end
def test(x)
x
end
end
CODE
end.to raise_error(/Parsing of type string '"Array\[1\+=1\]"' failed with message: <Syntax error at '\]' \(line: 1, column: [0-9]+\)>/m)
end
end
context 'can use a loader when parsing types in function dispatch, and' do
let(:parser) { Puppet::Pops::Parser::EvaluatingParser.new }
it 'uses return_type to validate returned value' do
the_loader = loader()
here = get_binding(the_loader)
fc = eval(<<-CODE, here)
Puppet::Functions.create_function('testing::test') do
dispatch :test do
param 'Integer', :x
return_type 'String'
end
def test(x)
x
end
end
CODE
the_loader.add_function('testing::test', fc.new({}, the_loader))
program = parser.parse_string('testing::test(10)', __FILE__)
expect(Puppet::Pops::Adapters::LoaderAdapter).to receive(:loader_for_model_object).and_return(the_loader)
expect { parser.evaluate({}, program) }.to raise_error(Puppet::Error,
/value returned from function 'test' has wrong type, expects a String value, got Integer/)
end
it 'resolve a referenced Type alias' do
the_loader = loader()
the_loader.add_type('myalias', type_alias_t('MyAlias', 'Integer'))
here = get_binding(the_loader)
fc = eval(<<-CODE, here)
Puppet::Functions.create_function('testing::test') do
dispatch :test do
param 'MyAlias', :x
return_type 'MyAlias'
end
def test(x)
x
end
end
CODE
the_loader.add_function('testing::test', fc.new({}, the_loader))
program = parser.parse_string('testing::test(10)', __FILE__)
expect(Puppet::Pops::Adapters::LoaderAdapter).to receive(:loader_for_model_object).and_return(the_loader)
expect(parser.evaluate({}, program)).to eql(10)
end
it 'reports a reference to an unresolved type' do
the_loader = loader()
here = get_binding(the_loader)
fc = eval(<<-CODE, here)
Puppet::Functions.create_function('testing::test') do
dispatch :test do
param 'MyAlias', :x
end
def test(x)
x
end
end
CODE
the_loader.add_function('testing::test', fc.new({}, the_loader))
program = parser.parse_string('testing::test(10)', __FILE__)
expect(Puppet::Pops::Adapters::LoaderAdapter).to receive(:loader_for_model_object).and_return(the_loader)
expect { parser.evaluate({}, program) }.to raise_error(Puppet::Error, /parameter 'x' references an unresolved type 'MyAlias'/)
end
it 'create local Type aliases' do
the_loader = loader()
here = get_binding(the_loader)
fc = eval(<<-CODE, here)
Puppet::Functions.create_function('testing::test') do
local_types do
type 'MyType = Array[Integer]'
end
dispatch :test do
param 'MyType', :x
end
def test(x)
x
end
end
CODE
the_loader.add_function('testing::test', fc.new({}, the_loader))
program = parser.parse_string('testing::test([10,20])', __FILE__)
expect(Puppet::Pops::Adapters::LoaderAdapter).to receive(:loader_for_model_object).and_return(the_loader)
expect(parser.evaluate({}, program)).to eq([10,20])
end
it 'create nested local Type aliases' do
the_loader = loader()
here = get_binding(the_loader)
fc = eval(<<-CODE, here)
Puppet::Functions.create_function('testing::test') do
local_types do
type 'InnerType = Array[Integer]'
type 'OuterType = Hash[String,InnerType]'
end
dispatch :test do
param 'OuterType', :x
end
def test(x)
x
end
end
CODE
the_loader.add_function('testing::test', fc.new({}, the_loader))
program = parser.parse_string("testing::test({'x' => [10,20]})", __FILE__)
expect(Puppet::Pops::Adapters::LoaderAdapter).to receive(:loader_for_model_object).and_return(the_loader)
expect(parser.evaluate({}, program)).to eq({'x' => [10,20]})
end
it 'create self referencing local Type aliases' do
the_loader = loader()
here = get_binding(the_loader)
fc = eval(<<-CODE, here)
Puppet::Functions.create_function('testing::test') do
local_types do
type 'Tree = Hash[String,Variant[String,Tree]]'
end
dispatch :test do
param 'Tree', :x
end
def test(x)
x
end
end
CODE
the_loader.add_function('testing::test', fc.new({}, the_loader))
program = parser.parse_string("testing::test({'x' => {'y' => 'n'}})", __FILE__)
expect(Puppet::Pops::Adapters::LoaderAdapter).to receive(:loader_for_model_object).and_return(the_loader)
expect(parser.evaluate({}, program)).to eq({'x' => {'y' => 'n'}})
end
end
end
def create_noargs_function_class
Puppet::Functions.create_function('test') do
def test()
10
end
end
end
def create_min_function_class
Puppet::Functions.create_function('min') do
def min(x,y)
x <= y ? x : y
end
end
end
def create_max_function_class
Puppet::Functions.create_function('max') do
def max(x,y)
x >= y ? x : y
end
end
end
def create_badly_named_method_function_class
Puppet::Functions.create_function('mix') do
def mix_up(x,y)
x <= y ? x : y
end
end
end
def create_min_function_class_using_dispatch
Puppet::Functions.create_function('min') do
dispatch :min do
param 'Numeric', :a
param 'Numeric', :b
end
def min(x,y)
x <= y ? x : y
end
end
end
def create_min_function_class_disptaching_to_two_methods
Puppet::Functions.create_function('min') do
dispatch :min do
param 'Numeric', :a
param 'Numeric', :b
end
dispatch :min_s do
param 'String', :s1
param 'String', :s2
end
def min(x,y)
x <= y ? x : y
end
def min_s(x,y)
cmp = (x.downcase <=> y.downcase)
cmp <= 0 ? x : y
end
end
end
def create_function_with_optionals_and_repeated
Puppet::Functions.create_function('min') do
def min(x,y,a=1, b=1, *c)
x <= y ? x : y
end
end
end
def create_function_with_optionals_and_repeated_via_dispatch
Puppet::Functions.create_function('min') do
dispatch :min do
param 'Numeric', :x
param 'Numeric', :y
optional_param 'Numeric', :a
optional_param 'Numeric', :b
repeated_param 'Numeric', :c
end
def min(x,y,a=1, b=1, *c)
x <= y ? x : y
end
end
end
def create_function_with_optionals_and_repeated_via_multiple_dispatch
Puppet::Functions.create_function('min') do
dispatch :min do
param 'Numeric', :x
param 'Numeric', :y
optional_param 'Numeric', :a
optional_param 'Numeric', :b
repeated_param 'Numeric', :c
end
dispatch :min do
param 'String', :x
param 'String', :y
required_repeated_param 'String', :a
end
def min(x,y,a=1, b=1, *c)
x <= y ? x : y
end
end
end
def create_function_with_required_repeated_via_dispatch
Puppet::Functions.create_function('min') do
dispatch :min do
param 'Numeric', :x
param 'Numeric', :y
required_repeated_param 'Numeric', :z
end
def min(x,y, *z)
x <= y ? x : y
end
end
end
def create_function_with_repeated
Puppet::Functions.create_function('count_args') do
dispatch :count_args do
repeated_param 'Any', :c
end
def count_args(*c)
c.size
end
end
end
def create_function_with_optional_repeated
Puppet::Functions.create_function('count_args') do
dispatch :count_args do
optional_repeated_param 'Any', :c
end
def count_args(*c)
c.size
end
end
end
def create_function_with_required_repeated
Puppet::Functions.create_function('count_args') do
dispatch :count_args do
required_repeated_param 'Any', :c
end
def count_args(*c)
c.size
end
end
end
def create_function_with_inexact_dispatch
Puppet::Functions.create_function('t1') do
dispatch :t1 do
param 'Numeric', :x
param 'Numeric', :y
repeated_param 'Numeric', :z
end
dispatch :t1 do
param 'String', :x
param 'String', :y
repeated_param 'String', :z
end
def t1(first, *x)
[first.class, *x.map {|e|e.class}]
end
end
end
def create_function_with_rq_after_opt
Puppet::Functions.create_function('t1') do
dispatch :t1 do
optional_param 'Numeric', :x
param 'Numeric', :y
end
def t1(*x)
x
end
end
end
def create_function_with_rq_repeated_after_opt
Puppet::Functions.create_function('t1') do
dispatch :t1 do
optional_param 'Numeric', :x
required_repeated_param 'Numeric', :y
end
def t1(x, *y)
x
end
end
end
def create_function_with_param_after_repeated
Puppet::Functions.create_function('t1') do
dispatch :t1 do
repeated_param 'Numeric', :x
param 'Numeric', :y
end
def t1(*x)
x
end
end
end
def create_function_with_param_injection_regular
Puppet::Functions.create_function('test', Puppet::Functions::InternalFunction) do
attr_injected Puppet::Pops::Types::TypeFactory.type_of(FunctionAPISpecModule::TestDuck), :test_attr
attr_injected Puppet::Pops::Types::TypeFactory.string(), :test_attr2, "a_string"
attr_injected_producer Puppet::Pops::Types::TypeFactory.integer(), :serial, "an_int"
dispatch :test do
injected_param Puppet::Pops::Types::TypeFactory.string, :x, 'a_string'
injected_producer_param Puppet::Pops::Types::TypeFactory.integer, :y, 'an_int'
param 'Scalar', :a
param 'Scalar', :b
end
def test(x,y,a,b)
y_produced = y.produce(nil)
"#{x}! #{a}, and #{b} < #{y_produced} = #{ !!(a < y_produced && b < y_produced)}"
end
end
end
def create_function_with_required_block_all_defaults
Puppet::Functions.create_function('test') do
dispatch :test do
param 'Integer', :x
# use defaults, any callable, name is 'block'
block_param
end
def test(x)
yield(8,x)
end
end
end
def create_function_with_scope_required_block_all_defaults
Puppet::Functions.create_function('test', Puppet::Functions::InternalFunction) do
dispatch :test do
scope_param
param 'Integer', :x
# use defaults, any callable, name is 'block'
required_block_param
end
def test(scope, x)
yield(3,x)
end
end
end
def create_function_with_required_block_default_type
Puppet::Functions.create_function('test') do
dispatch :test do
param 'Integer', :x
# use defaults, any callable, name is 'block'
required_block_param :the_block
end
def test(x)
yield
end
end
end
def create_function_with_scope_param_required_repeat
Puppet::Functions.create_function('test', Puppet::Functions::InternalFunction) do
dispatch :test do
scope_param
param 'Any', :extra
repeated_param 'Any', :the_block
end
def test(scope, *args)
[scope, *args]
end
end
end
def create_function_with_required_block_given_type
Puppet::Functions.create_function('test') do
dispatch :test do
param 'Integer', :x
required_block_param
end
def test(x)
yield
end
end
end
def create_function_with_required_block_fully_specified
Puppet::Functions.create_function('test') do
dispatch :test do
param 'Integer', :x
# use defaults, any callable, name is 'block'
required_block_param('Callable', :the_block)
end
def test(x)
yield
end
end
end
def create_function_with_optional_block_all_defaults
Puppet::Functions.create_function('test') do
dispatch :test do
param 'Integer', :x
# use defaults, any callable, name is 'block'
optional_block_param
end
def test(x)
yield(5,x) if block_given?
end
end
end
def create_function_with_no_parameter_dispatch
Puppet::Functions.create_function('test') do
dispatch :test_no_args do
end
dispatch :test_one_arg do
param 'Integer', :x
end
def test_no_args
0
end
def test_one_arg(x)
x
end
end
end
def create_function_with_mismatch_handler
Puppet::Functions.create_function('test') do
dispatch :test do
param 'Integer', :x
end
argument_mismatch :on_error do
param 'String', :x
end
def test(x)
yield(5,x) if block_given?
end
def on_error(x)
"It's not OK to pass a string"
end
end
end
def type_alias_t(name, type_string)
type_expr = Puppet::Pops::Parser::EvaluatingParser.new.parse_string(type_string)
Puppet::Pops::Types::TypeFactory.type_alias(name, type_expr)
end
def get_binding(loader_injected_arg)
binding
end
end
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