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#!/usr/bin/env rspec
require 'spec_helper'
describe Puppet::Parser::AST::Minus do
before :each do
@scope = Puppet::Parser::Scope.new
end
it "should evaluate its argument" do
value = stub "value"
value.expects(:safeevaluate).with(@scope).returns(123)
operator = Puppet::Parser::AST::Minus.new :value => value
operator.evaluate(@scope)
end
it "should fail if argument is not a string or integer" do
array_ast = stub 'array_ast', :safeevaluate => [2]
operator = Puppet::Parser::AST::Minus.new :value => array_ast
lambda { operator.evaluate(@scope) }.should raise_error
end
it "should work with integer as string" do
string = stub 'string', :safeevaluate => "123"
operator = Puppet::Parser::AST::Minus.new :value => string
operator.evaluate(@scope).should == -123
end
it "should work with integers" do
int = stub 'int', :safeevaluate => 123
operator = Puppet::Parser::AST::Minus.new :value => int
operator.evaluate(@scope).should == -123
end
end
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