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#!/usr/bin/env ruby
require File.dirname(__FILE__) + '/../../spec_helper'
require 'yaml'
require 'tempfile'
require 'puppet/util/storage'
describe Puppet::Util::Storage do
before(:all) do
@basepath = Puppet.features.posix? ? "/somepath" : "C:/somepath"
Puppet[:statedir] = Dir.tmpdir()
end
after(:all) do
Puppet.settings.clear
end
before(:each) do
Puppet::Util::Storage.clear()
end
describe "when caching a symbol" do
it "should return an empty hash" do
Puppet::Util::Storage.cache(:yayness).should == {}
Puppet::Util::Storage.cache(:more_yayness).should == {}
end
it "should add the symbol to its internal state" do
Puppet::Util::Storage.cache(:yayness)
Puppet::Util::Storage.state().should == {:yayness=>{}}
end
it "should not clobber existing state when caching additional objects" do
Puppet::Util::Storage.cache(:yayness)
Puppet::Util::Storage.state().should == {:yayness=>{}}
Puppet::Util::Storage.cache(:bubblyness)
Puppet::Util::Storage.state().should == {:yayness=>{},:bubblyness=>{}}
end
end
describe "when caching a Puppet::Type" do
before(:all) do
@file_test = Puppet::Type.type(:file).new(:name => @basepath+"/yayness", :check => %w{checksum type})
@exec_test = Puppet::Type.type(:exec).new(:name => @basepath+"/bin/ls /yayness")
end
it "should return an empty hash" do
Puppet::Util::Storage.cache(@file_test).should == {}
Puppet::Util::Storage.cache(@exec_test).should == {}
end
it "should add the resource ref to its internal state" do
Puppet::Util::Storage.state().should == {}
Puppet::Util::Storage.cache(@file_test)
Puppet::Util::Storage.state().should == {"File[#{@basepath}/yayness]"=>{}}
Puppet::Util::Storage.cache(@exec_test)
Puppet::Util::Storage.state().should == {"File[#{@basepath}/yayness]"=>{}, "Exec[#{@basepath}/bin/ls /yayness]"=>{}}
end
end
describe "when caching something other than a resource or symbol" do
it "should cache by converting to a string" do
data = Puppet::Util::Storage.cache(42)
data[:yay] = true
Puppet::Util::Storage.cache("42")[:yay].should be_true
end
end
it "should clear its internal state when clear() is called" do
Puppet::Util::Storage.cache(:yayness)
Puppet::Util::Storage.state().should == {:yayness=>{}}
Puppet::Util::Storage.clear()
Puppet::Util::Storage.state().should == {}
end
describe "when loading from the state file" do
before do
Puppet.settings.stubs(:use).returns(true)
end
describe "when the state file/directory does not exist" do
before(:each) do
transient = Tempfile.new('storage_test')
@path = transient.path()
transient.close!()
end
it "should not fail to load()" do
FileTest.exists?(@path).should be_false()
Puppet[:statedir] = @path
proc { Puppet::Util::Storage.load() }.should_not raise_error()
Puppet[:statefile] = @path
proc { Puppet::Util::Storage.load() }.should_not raise_error()
end
it "should not lose its internal state when load() is called" do
FileTest.exists?(@path).should be_false()
Puppet::Util::Storage.cache(:yayness)
Puppet::Util::Storage.state().should == {:yayness=>{}}
Puppet[:statefile] = @path
proc { Puppet::Util::Storage.load() }.should_not raise_error()
Puppet::Util::Storage.state().should == {:yayness=>{}}
end
end
describe "when the state file/directory exists" do
before(:each) do
@state_file = Tempfile.new('storage_test')
@saved_statefile = Puppet[:statefile]
Puppet[:statefile] = @state_file.path()
end
it "should overwrite its internal state if load() is called" do
# Should the state be overwritten even if Puppet[:statefile] is not valid YAML?
Puppet::Util::Storage.cache(:yayness)
Puppet::Util::Storage.state().should == {:yayness=>{}}
proc { Puppet::Util::Storage.load() }.should_not raise_error()
Puppet::Util::Storage.state().should == {}
end
it "should restore its internal state if the state file contains valid YAML" do
test_yaml = {'File["/yayness"]'=>{"name"=>{:a=>:b,:c=>:d}}}
YAML.expects(:load).returns(test_yaml)
proc { Puppet::Util::Storage.load() }.should_not raise_error()
Puppet::Util::Storage.state().should == test_yaml
end
it "should initialize with a clear internal state if the state file does not contain valid YAML" do
@state_file.write(:booness)
@state_file.flush()
proc { Puppet::Util::Storage.load() }.should_not raise_error()
Puppet::Util::Storage.state().should == {}
end
it "should raise an error if the state file does not contain valid YAML and cannot be renamed" do
@state_file.write(:booness)
@state_file.flush()
YAML.expects(:load).raises(Puppet::Error)
File.expects(:rename).raises(SystemCallError)
proc { Puppet::Util::Storage.load() }.should raise_error()
end
it "should attempt to rename the state file if the file is corrupted" do
# We fake corruption by causing YAML.load to raise an exception
YAML.expects(:load).raises(Puppet::Error)
File.expects(:rename).at_least_once
proc { Puppet::Util::Storage.load() }.should_not raise_error()
end
it "should fail gracefully on load() if the state file is not a regular file" do
@state_file.close!()
Dir.mkdir(Puppet[:statefile])
proc { Puppet::Util::Storage.load() }.should_not raise_error()
Dir.rmdir(Puppet[:statefile])
end
it "should fail gracefully on load() if it cannot get a read lock on the state file" do
Puppet::Util::FileLocking.expects(:readlock).yields(false)
test_yaml = {'File["/yayness"]'=>{"name"=>{:a=>:b,:c=>:d}}}
YAML.expects(:load).returns(test_yaml)
proc { Puppet::Util::Storage.load() }.should_not raise_error()
Puppet::Util::Storage.state().should == test_yaml
end
after(:each) do
@state_file.close!()
Puppet[:statefile] = @saved_statefile
end
end
end
describe "when storing to the state file" do
before(:each) do
@state_file = Tempfile.new('storage_test')
@saved_statefile = Puppet[:statefile]
Puppet[:statefile] = @state_file.path()
end
it "should create the state file if it does not exist" do
@state_file.close!()
FileTest.exists?(Puppet[:statefile]).should be_false()
Puppet::Util::Storage.cache(:yayness)
proc { Puppet::Util::Storage.store() }.should_not raise_error()
FileTest.exists?(Puppet[:statefile]).should be_true()
end
it "should raise an exception if the state file is not a regular file" do
@state_file.close!()
Dir.mkdir(Puppet[:statefile])
Puppet::Util::Storage.cache(:yayness)
proc { Puppet::Util::Storage.store() }.should raise_error()
Dir.rmdir(Puppet[:statefile])
end
it "should raise an exception if it cannot get a write lock on the state file" do
Puppet::Util::FileLocking.expects(:writelock).yields(false)
Puppet::Util::Storage.cache(:yayness)
proc { Puppet::Util::Storage.store() }.should raise_error()
end
it "should load() the same information that it store()s" do
Puppet::Util::Storage.cache(:yayness)
Puppet::Util::Storage.state().should == {:yayness=>{}}
proc { Puppet::Util::Storage.store() }.should_not raise_error()
Puppet::Util::Storage.clear()
Puppet::Util::Storage.state().should == {}
proc { Puppet::Util::Storage.load() }.should_not raise_error()
Puppet::Util::Storage.state().should == {:yayness=>{}}
end
after(:each) do
@state_file.close!()
Puppet[:statefile] = @saved_statefile
end
end
end
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