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path: root/spec/unit/util/posix_spec.rb
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#!/usr/bin/env ruby

Dir.chdir(File.dirname(__FILE__)) { (s = lambda { |f| File.exist?(f) ? require(f) : Dir.chdir("..") { s.call(f) } }).call("spec/spec_helper.rb") }

require 'puppet/util/posix'

class PosixTest
    include Puppet::Util::POSIX
end

describe Puppet::Util::POSIX do
    before do
        @posix = PosixTest.new
    end

    [:group, :gr].each do |name|
        it "should return :gid as the field for #{name}" do
            @posix.idfield(name).should == :gid
        end

        it "should return :getgrgid as the id method for #{name}" do
            @posix.methodbyid(name).should == :getgrgid
        end

        it "should return :getgrnam as the name method for #{name}" do
            @posix.methodbyname(name).should == :getgrnam
        end
    end

    [:user, :pw, :passwd].each do |name|
        it "should return :uid as the field for #{name}" do
            @posix.idfield(name).should == :uid
        end

        it "should return :getpwuid as the id method for #{name}" do
            @posix.methodbyid(name).should == :getpwuid
        end

        it "should return :getpwnam as the name method for #{name}" do
            @posix.methodbyname(name).should == :getpwnam
        end
    end

    describe "when retrieving a posix field" do
        before do
            @thing = stub 'thing', :field => "asdf"
        end

        it "should fail if no id was passed" do
            lambda { @posix.get_posix_field("asdf", "bar", nil) }.should raise_error(Puppet::DevError)
        end

        describe "and the id is an integer" do
            it "should log an error and return nil if the specified id is greater than the maximum allowed ID" do
                Puppet.settings.expects(:value).with(:maximum_uid).returns 100
                Puppet.expects(:err)

                @posix.get_posix_field("asdf", "bar", 200).should be_nil
            end

            it "should use the method return by :methodbyid and return the specified field" do
                Etc.expects(:getgrgid).returns @thing

                @thing.expects(:field).returns "myval"

                @posix.get_posix_field(:gr, :field, 200).should == "myval"
            end

            it "should return nil if the method throws an exception" do
                Etc.expects(:getgrgid).raises ArgumentError

                @thing.expects(:field).never

                @posix.get_posix_field(:gr, :field, 200).should be_nil
            end
        end

        describe "and the id is not an integer" do
            it "should use the method return by :methodbyid and return the specified field" do
                Etc.expects(:getgrnam).returns @thing

                @thing.expects(:field).returns "myval"

                @posix.get_posix_field(:gr, :field, "asdf").should == "myval"
            end

            it "should return nil if the method throws an exception" do
                Etc.expects(:getgrnam).raises ArgumentError

                @thing.expects(:field).never

                @posix.get_posix_field(:gr, :field, "asdf").should be_nil
            end
        end
    end

    describe "when returning the gid" do
        before do
            @posix.stubs(:get_posix_field)
        end

        describe "and the group is an integer" do
            it "should convert integers specified as a string into an integer" do
                @posix.expects(:get_posix_field).with(:group, :name, 100)

                @posix.gid("100")
            end

            it "should look up the name for the group" do
                @posix.expects(:get_posix_field).with(:group, :name, 100)

                @posix.gid(100)
            end

            it "should return nil if the group cannot be found" do
                @posix.expects(:get_posix_field).once.returns nil
                @posix.expects(:search_posix_field).never

                @posix.gid(100).should be_nil
            end

            it "should use the found name to look up the id" do
                @posix.expects(:get_posix_field).with(:group, :name, 100).returns "asdf"
                @posix.expects(:get_posix_field).with(:group, :gid, "asdf").returns 100

                @posix.gid(100).should == 100
            end

            # LAK: This is because some platforms have a broken Etc module that always return
            # the same group.
            it "should use :search_posix_field if the discovered id does not match the passed-in id" do
                @posix.expects(:get_posix_field).with(:group, :name, 100).returns "asdf"
                @posix.expects(:get_posix_field).with(:group, :gid, "asdf").returns 50

                @posix.expects(:search_posix_field).with(:group, :gid, 100).returns "asdf"

                @posix.gid(100).should == "asdf"
            end
        end

        describe "and the group is a string" do
            it "should look up the gid for the group" do
                @posix.expects(:get_posix_field).with(:group, :gid, "asdf")

                @posix.gid("asdf")
            end

            it "should return nil if the group cannot be found" do
                @posix.expects(:get_posix_field).once.returns nil
                @posix.expects(:search_posix_field).never

                @posix.gid("asdf").should be_nil
            end

            it "should use the found gid to look up the nam" do
                @posix.expects(:get_posix_field).with(:group, :gid, "asdf").returns 100
                @posix.expects(:get_posix_field).with(:group, :name, 100).returns "asdf"

                @posix.gid("asdf").should == 100
            end

            it "should use :search_posix_field if the discovered name does not match the passed-in name" do
                @posix.expects(:get_posix_field).with(:group, :gid, "asdf").returns 100
                @posix.expects(:get_posix_field).with(:group, :name, 100).returns "boo"

                @posix.expects(:search_posix_field).with(:group, :gid, "asdf").returns "asdf"

                @posix.gid("asdf").should == "asdf"
            end
        end
    end

    describe "when returning the uid" do
        before do
            @posix.stubs(:get_posix_field)
        end

        describe "and the group is an integer" do
            it "should convert integers specified as a string into an integer" do
                @posix.expects(:get_posix_field).with(:passwd, :name, 100)

                @posix.uid("100")
            end

            it "should look up the name for the group" do
                @posix.expects(:get_posix_field).with(:passwd, :name, 100)

                @posix.uid(100)
            end

            it "should return nil if the group cannot be found" do
                @posix.expects(:get_posix_field).once.returns nil
                @posix.expects(:search_posix_field).never

                @posix.uid(100).should be_nil
            end

            it "should use the found name to look up the id" do
                @posix.expects(:get_posix_field).with(:passwd, :name, 100).returns "asdf"
                @posix.expects(:get_posix_field).with(:passwd, :uid, "asdf").returns 100

                @posix.uid(100).should == 100
            end

            # LAK: This is because some platforms have a broken Etc module that always return
            # the same group.
            it "should use :search_posix_field if the discovered id does not match the passed-in id" do
                @posix.expects(:get_posix_field).with(:passwd, :name, 100).returns "asdf"
                @posix.expects(:get_posix_field).with(:passwd, :uid, "asdf").returns 50

                @posix.expects(:search_posix_field).with(:passwd, :uid, 100).returns "asdf"

                @posix.uid(100).should == "asdf"
            end
        end

        describe "and the group is a string" do
            it "should look up the uid for the group" do
                @posix.expects(:get_posix_field).with(:passwd, :uid, "asdf")

                @posix.uid("asdf")
            end

            it "should return nil if the group cannot be found" do
                @posix.expects(:get_posix_field).once.returns nil
                @posix.expects(:search_posix_field).never

                @posix.uid("asdf").should be_nil
            end

            it "should use the found uid to look up the nam" do
                @posix.expects(:get_posix_field).with(:passwd, :uid, "asdf").returns 100
                @posix.expects(:get_posix_field).with(:passwd, :name, 100).returns "asdf"

                @posix.uid("asdf").should == 100
            end

            it "should use :search_posix_field if the discovered name does not match the passed-in name" do
                @posix.expects(:get_posix_field).with(:passwd, :uid, "asdf").returns 100
                @posix.expects(:get_posix_field).with(:passwd, :name, 100).returns "boo"

                @posix.expects(:search_posix_field).with(:passwd, :uid, "asdf").returns "asdf"

                @posix.uid("asdf").should == "asdf"
            end
        end
    end

    it "should be able to iteratively search for posix values" do
        @posix.should respond_to(:search_posix_field)
    end

    describe "when searching for posix values iteratively" do
        it "should iterate across all of the structs returned by Etc and return the appropriate field from the first matching value"
    end
end