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require 'spec_helper'
describe "the inline_epp function" do
include PuppetSpec::Files
let :node do Puppet::Node.new('localhost') end
let :compiler do Puppet::Parser::Compiler.new(node) end
let :scope do Puppet::Parser::Scope.new(compiler) end
context "when accessing scope variables as $ variables" do
it "looks up the value from the scope" do
scope["what"] = "are belong"
expect(eval_template("all your base <%= $what %> to us")).to eq("all your base are belong to us")
end
it "get nil accessing a variable that does not exist" do
expect(eval_template("<%= $kryptonite == undef %>")).to eq("true")
end
it "get nil accessing a variable that is undef" do
scope['undef_var'] = :undef
expect(eval_template("<%= $undef_var == undef %>")).to eq("true")
end
it "gets shadowed variable if args are given" do
scope['phantom'] = 'of the opera'
expect(eval_template_with_args("<%= $phantom == dragos %>", 'phantom' => 'dragos')).to eq("true")
end
it "gets shadowed variable if args are given and parameters are specified" do
scope['x'] = 'wrong one'
expect(eval_template_with_args("<%-| $x |-%><%= $x == correct %>", 'x' => 'correct')).to eq("true")
end
it "raises an error if required variable is not given" do
scope['x'] = 'wrong one'
expect {
eval_template_with_args("<%-| $x |-%><%= $x == correct %>", {})
}.to raise_error(/expects a value for parameter 'x'/)
end
it 'raises an error if unexpected arguments are given' do
scope['x'] = 'wrong one'
expect {
eval_template_with_args("<%-| $x |-%><%= $x == correct %>", 'x' => 'correct', 'y' => 'surplus')
}.to raise_error(/has no parameter named 'y'/)
end
end
context "when given an empty template" do
it "allows the template file to be empty" do
expect(eval_template("")).to eq("")
end
it "allows the template to have empty body after parameters" do
expect(eval_template_with_args("<%-|$x|%>", 'x'=>1)).to eq("")
end
end
it "renders a block expression" do
expect(eval_template_with_args("<%= { $y = $x $x + 1} %>", 'x' => 2)).to eq("3")
end
# although never a problem with epp
it "is not interfered with by having a variable named 'string' (#14093)" do
scope['string'] = "this output should not be seen"
expect(eval_template("some text that is static")).to eq("some text that is static")
end
it "has access to a variable named 'string' (#14093)" do
scope['string'] = "the string value"
expect(eval_template("string was: <%= $string %>")).to eq("string was: the string value")
end
def eval_template_with_args(content, args_hash)
epp_function.call(scope, content, args_hash)
end
def eval_template(content)
epp_function.call(scope, content)
end
def epp_function()
scope.compiler.loaders.public_environment_loader.load(:function, 'inline_epp')
end
end
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