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#!/usr/bin/env rspec
require 'spec_helper'
describe Puppet::Parser::AST::ComparisonOperator do
before :each do
@scope = Puppet::Parser::Scope.new
@one = Puppet::Parser::AST::Leaf.new(:value => "1")
@two = Puppet::Parser::AST::Leaf.new(:value => "2")
@lval = Puppet::Parser::AST::Leaf.new(:value => "one")
@rval = Puppet::Parser::AST::Leaf.new(:value => "two")
end
it "should evaluate both values" do
@lval.expects(:safeevaluate).with(@scope)
@rval.expects(:safeevaluate).with(@scope)
operator = Puppet::Parser::AST::ComparisonOperator.new :lval => @lval, :operator => "==", :rval => @rval
operator.evaluate(@scope)
end
it "should convert the arguments to numbers if they are numbers in string" do
Puppet::Parser::Scope.expects(:number?).with("1").returns(1)
Puppet::Parser::Scope.expects(:number?).with("2").returns(2)
operator = Puppet::Parser::AST::ComparisonOperator.new :lval => @one, :operator => "==", :rval => @two
operator.evaluate(@scope)
end
%w{< > <= >=}.each do |oper|
it "should use string comparison #{oper} if operands are strings" do
operator = Puppet::Parser::AST::ComparisonOperator.new :lval => @lval, :operator => oper, :rval => @rval
operator.evaluate(@scope).should == "one".send(oper,"two")
end
end
describe "with string comparison" do
it "should use matching" do
@rval.expects(:evaluate_match).with("one", @scope)
operator = Puppet::Parser::AST::ComparisonOperator.new :lval => @lval, :operator => "==", :rval => @rval
operator.evaluate(@scope)
end
it "should return true for :undef to '' equality" do
astundef = Puppet::Parser::AST::Leaf.new(:value => :undef)
empty = Puppet::Parser::AST::Leaf.new(:value => '')
operator = Puppet::Parser::AST::ComparisonOperator.new :lval => astundef, :operator => "==", :rval => empty
operator.evaluate(@scope).should be_true
end
[true, false].each do |result|
it "should return #{(result).inspect} with '==' when matching return #{result.inspect}" do
@rval.expects(:evaluate_match).with("one", @scope).returns result
operator = Puppet::Parser::AST::ComparisonOperator.new :lval => @lval, :operator => "==", :rval => @rval
operator.evaluate(@scope).should == result
end
it "should return #{(!result).inspect} with '!=' when matching return #{result.inspect}" do
@rval.expects(:evaluate_match).with("one", @scope).returns result
operator = Puppet::Parser::AST::ComparisonOperator.new :lval => @lval, :operator => "!=", :rval => @rval
operator.evaluate(@scope).should == !result
end
end
end
it "should fail with arguments of different types" do
operator = Puppet::Parser::AST::ComparisonOperator.new :lval => @one, :operator => ">", :rval => @rval
lambda { operator.evaluate(@scope) }.should raise_error(ArgumentError)
end
it "should fail for an unknown operator" do
lambda { operator = Puppet::Parser::AST::ComparisonOperator.new :lval => @one, :operator => "or", :rval => @two }.should raise_error
end
%w{< > <= >= ==}.each do |oper|
it "should return the result of using '#{oper}' to compare the left and right sides" do
operator = Puppet::Parser::AST::ComparisonOperator.new :lval => @one, :operator => oper, :rval => @two
operator.evaluate(@scope).should == 1.send(oper,2)
end
end
it "should return the result of using '!=' to compare the left and right sides" do
operator = Puppet::Parser::AST::ComparisonOperator.new :lval => @one, :operator => '!=', :rval => @two
operator.evaluate(@scope).should == true
end
it "should work for variables too" do
one = Puppet::Parser::AST::Variable.new( :value => "one" )
two = Puppet::Parser::AST::Variable.new( :value => "two" )
one.expects(:safeevaluate).with(@scope).returns(1)
two.expects(:safeevaluate).with(@scope).returns(2)
operator = Puppet::Parser::AST::ComparisonOperator.new :lval => one, :operator => "<", :rval => two
operator.evaluate(@scope).should == true
end
# see ticket #1759
%w{< > <= >=}.each do |oper|
it "should return the correct result of using '#{oper}' to compare 10 and 9" do
ten = Puppet::Parser::AST::Leaf.new(:value => "10")
nine = Puppet::Parser::AST::Leaf.new(:value => "9")
operator = Puppet::Parser::AST::ComparisonOperator.new :lval => ten, :operator => oper, :rval => nine
operator.evaluate(@scope).should == 10.send(oper,9)
end
end
end
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