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path: root/spec/unit/parser/ast/asthash_spec.rb
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#!/usr/bin/env ruby

require File.dirname(__FILE__) + '/../../../spec_helper'

describe Puppet::Parser::AST::ASTHash do
    before :each do
        @scope = Puppet::Parser::Scope.new()
    end

    it "should have a merge functionality" do
        hash = Puppet::Parser::AST::ASTHash.new(:value => {})
        hash.should respond_to(:merge)
    end

    it "should be able to merge 2 AST hashes" do
        hash = Puppet::Parser::AST::ASTHash.new(:value => { "a" => "b" })

        hash.merge(Puppet::Parser::AST::ASTHash.new(:value => {"c" => "d"}))

        hash.value.should == { "a" => "b", "c" => "d" }
    end

    it "should be able to merge with a ruby Hash" do
        hash = Puppet::Parser::AST::ASTHash.new(:value => { "a" => "b" })

        hash.merge({"c" => "d"})

        hash.value.should == { "a" => "b", "c" => "d" }
    end

    it "should evaluate each hash value" do
        key1 = stub "key1"
        value1 = stub "value1"
        key2 = stub "key2"
        value2 = stub "value2"

        value1.expects(:safeevaluate).with(@scope).returns("b")
        value2.expects(:safeevaluate).with(@scope).returns("d")

        operator = Puppet::Parser::AST::ASTHash.new(:value => { key1 => value1, key2 => value2})
        operator.evaluate(@scope)
    end

    it "should evaluate the hash keys if they are AST instances" do
        key1 = stub "key1"
        value1 = stub "value1", :safeevaluate => "one"
        key2 = stub "key2"
        value2 = stub "value2", :safeevaluate => "two"

        key1.expects(:safeevaluate).with(@scope).returns("1")
        key2.expects(:safeevaluate).with(@scope).returns("2")

        operator = Puppet::Parser::AST::ASTHash.new(:value => { key1 => value1, key2 => value2})
        hash = operator.evaluate(@scope)
        hash["1"].should == "one"
        hash["2"].should == "two"
    end

    it "should evaluate the hash keys if they are not AST instances" do
        key1 = "1"
        value1 = stub "value1", :safeevaluate => "one"
        key2 = "2"
        value2 = stub "value2", :safeevaluate => "two"

        operator = Puppet::Parser::AST::ASTHash.new(:value => { key1 => value1, key2 => value2})
        hash = operator.evaluate(@scope)
        hash["1"].should == "one"
        hash["2"].should == "two"
    end

    it "should return an evaluated hash" do
        key1 = stub "key1"
        value1 = stub "value1", :safeevaluate => "b"
        key2 = stub "key2"
        value2 = stub "value2", :safeevaluate => "d"

        operator = Puppet::Parser::AST::ASTHash.new(:value => { key1 => value1, key2 => value2})
        operator.evaluate(@scope).should == { key1 => "b", key2 => "d" }
    end

    describe "when being initialized without arguments" do
        it "should evaluate to an empty hash" do
            hash = Puppet::Parser::AST::ASTHash.new({})
            hash.evaluate(@scope).should == {}
        end

        it "should support merging" do
            hash = Puppet::Parser::AST::ASTHash.new({})
            hash.merge({"a" => "b"}).should == {"a" => "b"}
        end
    end

    it "should return a valid string with to_s" do
        hash = Puppet::Parser::AST::ASTHash.new(:value => { "a" => "b", "c" => "d" })

        hash.to_s.should == '{a => b, c => d}'
    end
end