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require 'spec_helper'
describe "the template function" do
before :all do
Puppet::Parser::Functions.autoloader.loadall
end
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
it "concatenates outputs for multiple templates" do
tw1 = double("template_wrapper1")
tw2 = double("template_wrapper2")
allow(Puppet::Parser::TemplateWrapper).to receive(:new).and_return(tw1,tw2)
allow(tw1).to receive(:file=).with("1")
allow(tw2).to receive(:file=).with("2")
allow(tw1).to receive(:result).and_return("result1")
allow(tw2).to receive(:result).and_return("result2")
expect(scope.function_template(["1","2"])).to eq("result1result2")
end
it "raises an error if the template raises an error" do
tw = double('template_wrapper')
allow(tw).to receive(:file=).with("1")
allow(Puppet::Parser::TemplateWrapper).to receive(:new).and_return(tw)
allow(tw).to receive(:result).and_raise
expect {
scope.function_template(["1"])
}.to raise_error(Puppet::ParseError, /Failed to parse template/)
end
context "when accessing scope variables via method calls (deprecated)" do
it "raises an error when accessing an undefined variable" do
expect {
eval_template("template <%= deprecated %>")
}.to raise_error(Puppet::ParseError, /undefined local variable or method `deprecated'/)
end
it "looks up the value from the scope" do
scope["deprecated"] = "deprecated value"
expect { eval_template("template <%= deprecated %>")}.to raise_error(/undefined local variable or method `deprecated'/)
end
it "still has access to Kernel methods" do
expect { eval_template("<%= binding %>") }.to_not raise_error
end
end
context "when accessing scope variables as instance variables" do
it "has access to values" do
scope['scope_var'] = "value"
expect(eval_template("<%= @scope_var %>")).to eq("value")
end
it "get nil accessing a variable that does not exist" do
expect(eval_template("<%= @not_defined.nil? %>")).to eq("true")
end
it "get nil accessing a variable that is undef" do
scope['undef_var'] = :undef
expect(eval_template("<%= @undef_var.nil? %>")).to eq("true")
end
end
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
it "does not have direct access to Scope#lookupvar" do
expect {
eval_template("<%= lookupvar('myvar') %>")
}.to raise_error(Puppet::ParseError, /undefined method `lookupvar'/)
end
it 'is not available when --tasks is on' do
Puppet[:tasks] = true
expect {
eval_template("<%= lookupvar('myvar') %>")
}.to raise_error(Puppet::ParseError, /is only available when compiling a catalog/)
end
def eval_template(content)
allow(Puppet::FileSystem).to receive(:read_preserve_line_endings).with("template").and_return(content)
allow(Puppet::Parser::Files).to receive(:find_template).and_return("template")
scope.function_template(['template'])
end
end
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