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path: root/spec/unit/file_serving/content_spec.rb
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#!/usr/bin/env ruby

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

require 'puppet/file_serving/content'

describe Puppet::FileServing::Content do
    it "should should be a subclass of Base" do
        Puppet::FileServing::Content.superclass.should equal(Puppet::FileServing::Base)
    end

    it "should indirect file_content" do
        Puppet::FileServing::Content.indirection.name.should == :file_content
    end

    it "should should include the IndirectionHooks module in its indirection" do
        Puppet::FileServing::Content.indirection.singleton_class.included_modules.should include(Puppet::FileServing::IndirectionHooks)
    end

    it "should only support the raw format" do
        Puppet::FileServing::Content.supported_formats.should == [:raw]
    end

    it "should have a method for collecting its attributes" do
        Puppet::FileServing::Content.new("/path").should respond_to(:collect)
    end

    it "should not retrieve and store its contents when its attributes are collected if the file is a normal file" do
        content = Puppet::FileServing::Content.new("/path")

        result = "foo"
        File.stubs(:lstat).returns(stub("stat", :ftype => "file"))
        File.expects(:read).with("/path").never
        content.collect

        content.instance_variable_get("@content").should be_nil
    end

    it "should not attempt to retrieve its contents if the file is a directory" do
        content = Puppet::FileServing::Content.new("/path")

        result = "foo"
        File.stubs(:lstat).returns(stub("stat", :ftype => "directory"))
        File.expects(:read).with("/path").never
        content.collect

        content.instance_variable_get("@content").should be_nil
    end

    it "should have a method for setting its content" do
        content = Puppet::FileServing::Content.new("/path")
        content.should respond_to(:content=)
    end

    it "should make content available when set externally" do
        content = Puppet::FileServing::Content.new("/path")
        content.content = "foo/bar"
        content.content.should == "foo/bar"
    end

    it "should be able to create a content instance from raw file contents" do
        Puppet::FileServing::Content.should respond_to(:from_raw)
    end

    it "should create an instance with a fake file name and correct content when converting from raw" do
        instance = mock 'instance'
        Puppet::FileServing::Content.expects(:new).with("/this/is/a/fake/path").returns instance

        instance.expects(:content=).with "foo/bar"

        Puppet::FileServing::Content.from_raw("foo/bar").should equal(instance)
    end

    it "should return an opened File when converted to raw" do
        content = Puppet::FileServing::Content.new("/path")

        File.expects(:new).with("/path","r").returns :file

        content.to_raw.should == :file
    end
end

describe Puppet::FileServing::Content, "when returning the contents" do
    before do
        @path = "/my/path"
        @content = Puppet::FileServing::Content.new(@path, :links => :follow)
    end

    it "should fail if the file is a symlink and links are set to :manage" do
        @content.links = :manage
        File.expects(:lstat).with(@path).returns stub("stat", :ftype => "symlink")
        proc { @content.content }.should raise_error(ArgumentError)
    end

    it "should fail if a path is not set" do
        proc { @content.content() }.should raise_error(Errno::ENOENT)
    end

    it "should raise Errno::ENOENT if the file is absent" do
        @content.path = "/there/is/absolutely/no/chance/that/this/path/exists"
        proc { @content.content() }.should raise_error(Errno::ENOENT)
    end

    it "should return the contents of the path if the file exists" do
        File.expects(:stat).with(@path).returns stub("stat", :ftype => "file")
        File.expects(:read).with(@path).returns(:mycontent)
        @content.content.should == :mycontent
    end

    it "should cache the returned contents" do
        File.expects(:stat).with(@path).returns stub("stat", :ftype => "file")
        File.expects(:read).with(@path).returns(:mycontent)
        @content.content

        # The second run would throw a failure if the content weren't being cached.
        @content.content
    end
end