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#!/usr/bin/env rspec
require 'spec_helper'
describe Puppet::Parser::AST::CaseStatement do
before :each do
@scope = Puppet::Parser::Scope.new
end
describe "when evaluating" do
before :each do
@test = stub 'test'
@test.stubs(:safeevaluate).with(@scope).returns("value")
@option1 = Puppet::Parser::AST::CaseOpt.new({})
@option1.stubs(:eachopt)
@option1.stubs(:default?).returns false
@option2 = Puppet::Parser::AST::CaseOpt.new({})
@option2.stubs(:eachopt)
@option2.stubs(:default?).returns false
@options = Puppet::Parser::AST::ASTArray.new(:children => [@option1, @option2])
@casestmt = Puppet::Parser::AST::CaseStatement.new :test => @test, :options => @options
end
it "should evaluate test" do
@test.expects(:safeevaluate).with(@scope)
@casestmt.evaluate(@scope)
end
it "should scan each option" do
@casestmt.evaluate(@scope)
end
describe "when scanning options" do
before :each do
@opval1 = stub_everything 'opval1'
@option1.stubs(:eachopt).yields(@opval1)
@opval2 = stub_everything 'opval2'
@option2.stubs(:eachopt).yields(@opval2)
end
it "should evaluate each sub-option" do
@option1.expects(:eachopt)
@option2.expects(:eachopt)
@casestmt.evaluate(@scope)
end
it "should evaluate first matching option" do
@opval2.stubs(:evaluate_match).with { |*arg| arg[0] == "value" }.returns(true)
@option2.expects(:safeevaluate).with(@scope)
@casestmt.evaluate(@scope)
end
it "should return the first matching evaluated option" do
@opval2.stubs(:evaluate_match).with { |*arg| arg[0] == "value" }.returns(true)
@option2.stubs(:safeevaluate).with(@scope).returns(:result)
@casestmt.evaluate(@scope).should == :result
end
it "should evaluate the default option if none matched" do
@option1.stubs(:default?).returns(true)
@option1.expects(:safeevaluate).with(@scope)
@casestmt.evaluate(@scope)
end
it "should return the default evaluated option if none matched" do
@option1.stubs(:default?).returns(true)
@option1.stubs(:safeevaluate).with(@scope).returns(:result)
@casestmt.evaluate(@scope).should == :result
end
it "should return nil if nothing matched" do
@casestmt.evaluate(@scope).should be_nil
end
it "should match and set scope ephemeral variables" do
@opval1.expects(:evaluate_match).with { |*arg| arg[0] == "value" and arg[1] == @scope }
@casestmt.evaluate(@scope)
end
it "should evaluate this regex option if it matches" do
@opval1.stubs(:evaluate_match).with { |*arg| arg[0] == "value" and arg[1] == @scope }.returns(true)
@option1.expects(:safeevaluate).with(@scope)
@casestmt.evaluate(@scope)
end
it "should return this evaluated regex option if it matches" do
@opval1.stubs(:evaluate_match).with { |*arg| arg[0] == "value" and arg[1] == @scope }.returns(true)
@option1.stubs(:safeevaluate).with(@scope).returns(:result)
@casestmt.evaluate(@scope).should == :result
end
it "should unset scope ephemeral variables after option evaluation" do
@scope.stubs(:ephemeral_level).returns(:level)
@opval1.stubs(:evaluate_match).with { |*arg| arg[0] == "value" and arg[1] == @scope }.returns(true)
@option1.stubs(:safeevaluate).with(@scope).returns(:result)
@scope.expects(:unset_ephemeral_var).with(:level)
@casestmt.evaluate(@scope)
end
it "should not leak ephemeral variables even if evaluation fails" do
@scope.stubs(:ephemeral_level).returns(:level)
@opval1.stubs(:evaluate_match).with { |*arg| arg[0] == "value" and arg[1] == @scope }.returns(true)
@option1.stubs(:safeevaluate).with(@scope).raises
@scope.expects(:unset_ephemeral_var).with(:level)
lambda { @casestmt.evaluate(@scope) }.should raise_error
end
end
end
it "should match if any of the provided options evaluate as true" do
ast = nil
AST = Puppet::Parser::AST
tests = {
"one" => %w{a b c},
"two" => %w{e f g}
}
options = tests.collect do |result, values|
values = values.collect { |v| AST::Leaf.new :value => v }
AST::CaseOpt.new(
:value => AST::ASTArray.new(:children => values),
:statements => AST::Leaf.new(:value => result)
)
end
options << AST::CaseOpt.new(
:value => AST::Default.new(:value => "default"),
:statements => AST::Leaf.new(:value => "default")
)
ast = nil
param = AST::Variable.new(:value => "testparam")
ast = AST::CaseStatement.new(:test => param, :options => options)
tests.each do |should, values|
values.each do |value|
@scope = Puppet::Parser::Scope.new
@scope.setvar("testparam", value)
result = ast.evaluate(@scope)
result.should == should
end
end
end
end
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