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util_spec.rb
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util_spec.rb
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#!/usr/bin/env ruby
require 'spec_helper'
describe Puppet::Util do
include PuppetSpec::Files
if Puppet.features.microsoft_windows?
def set_mode(mode, file)
Puppet::Util::Windows::Security.set_mode(mode, file)
end
def get_mode(file)
Puppet::Util::Windows::Security.get_mode(file) & 07777
end
else
def set_mode(mode, file)
File.chmod(mode, file)
end
def get_mode(file)
File.lstat(file).mode & 07777
end
end
def process_status(exitstatus)
return exitstatus if Puppet.features.microsoft_windows?
stub('child_status', :exitstatus => exitstatus)
end
describe "#absolute_path?" do
describe "on posix systems", :as_platform => :posix do
it "should default to the platform of the local system" do
Puppet::Util.should be_absolute_path('/foo')
Puppet::Util.should_not be_absolute_path('C:/foo')
end
end
describe "on windows", :as_platform => :windows do
it "should default to the platform of the local system" do
Puppet::Util.should be_absolute_path('C:/foo')
Puppet::Util.should_not be_absolute_path('/foo')
end
end
describe "when using platform :posix" do
%w[/ /foo /foo/../bar //foo //Server/Foo/Bar //?/C:/foo/bar /\Server/Foo /foo//bar/baz].each do |path|
it "should return true for #{path}" do
Puppet::Util.should be_absolute_path(path, :posix)
end
end
%w[. ./foo \foo C:/foo \\Server\Foo\Bar \\?\C:\foo\bar \/?/foo\bar \/Server/foo foo//bar/baz].each do |path|
it "should return false for #{path}" do
Puppet::Util.should_not be_absolute_path(path, :posix)
end
end
end
describe "when using platform :windows" do
%w[C:/foo C:\foo \\\\Server\Foo\Bar \\\\?\C:\foo\bar //Server/Foo/Bar //?/C:/foo/bar /\?\C:/foo\bar \/Server\Foo/Bar c:/foo//bar//baz].each do |path|
it "should return true for #{path}" do
Puppet::Util.should be_absolute_path(path, :windows)
end
end
%w[/ . ./foo \foo /foo /foo/../bar //foo C:foo/bar foo//bar/baz].each do |path|
it "should return false for #{path}" do
Puppet::Util.should_not be_absolute_path(path, :windows)
end
end
end
end
describe "#path_to_uri" do
%w[. .. foo foo/bar foo/../bar].each do |path|
it "should reject relative path: #{path}" do
lambda { Puppet::Util.path_to_uri(path) }.should raise_error(Puppet::Error)
end
end
it "should perform URI escaping" do
Puppet::Util.path_to_uri("/foo bar").path.should == "/foo%20bar"
end
describe "when using platform :posix" do
before :each do
Puppet.features.stubs(:posix).returns true
Puppet.features.stubs(:microsoft_windows?).returns false
end
%w[/ /foo /foo/../bar].each do |path|
it "should convert #{path} to URI" do
Puppet::Util.path_to_uri(path).path.should == path
end
end
end
describe "when using platform :windows" do
before :each do
Puppet.features.stubs(:posix).returns false
Puppet.features.stubs(:microsoft_windows?).returns true
end
it "should normalize backslashes" do
Puppet::Util.path_to_uri('c:\\foo\\bar\\baz').path.should == '/' + 'c:/foo/bar/baz'
end
%w[C:/ C:/foo/bar].each do |path|
it "should convert #{path} to absolute URI" do
Puppet::Util.path_to_uri(path).path.should == '/' + path
end
end
%w[share C$].each do |path|
it "should convert UNC #{path} to absolute URI" do
uri = Puppet::Util.path_to_uri("\\\\server\\#{path}")
uri.host.should == 'server'
uri.path.should == '/' + path
end
end
end
end
describe ".uri_to_path" do
require 'uri'
it "should strip host component" do
Puppet::Util.uri_to_path(URI.parse('http://foo/bar')).should == '/bar'
end
it "should accept puppet URLs" do
Puppet::Util.uri_to_path(URI.parse('puppet:///modules/foo')).should == '/modules/foo'
end
it "should return unencoded path" do
Puppet::Util.uri_to_path(URI.parse('http://foo/bar%20baz')).should == '/bar baz'
end
it "should be nil-safe" do
Puppet::Util.uri_to_path(nil).should be_nil
end
describe "when using platform :posix",:if => Puppet.features.posix? do
it "should accept root" do
Puppet::Util.uri_to_path(URI.parse('file:/')).should == '/'
end
it "should accept single slash" do
Puppet::Util.uri_to_path(URI.parse('file:/foo/bar')).should == '/foo/bar'
end
it "should accept triple slashes" do
Puppet::Util.uri_to_path(URI.parse('file:///foo/bar')).should == '/foo/bar'
end
end
describe "when using platform :windows", :if => Puppet.features.microsoft_windows? do
it "should accept root" do
Puppet::Util.uri_to_path(URI.parse('file:/C:/')).should == 'C:/'
end
it "should accept single slash" do
Puppet::Util.uri_to_path(URI.parse('file:/C:/foo/bar')).should == 'C:/foo/bar'
end
it "should accept triple slashes" do
Puppet::Util.uri_to_path(URI.parse('file:///C:/foo/bar')).should == 'C:/foo/bar'
end
it "should accept file scheme with double slashes as a UNC path" do
Puppet::Util.uri_to_path(URI.parse('file://host/share/file')).should == '//host/share/file'
end
end
end
describe "execution methods" do
let(:pid) { 5501 }
let(:process_handle) { 0xDEADBEEF }
let(:thread_handle) { 0xCAFEBEEF }
let(:proc_info_stub) { stub 'processinfo', :process_handle => process_handle, :thread_handle => thread_handle, :process_id => pid}
let(:null_file) { Puppet.features.microsoft_windows? ? 'NUL' : '/dev/null' }
def stub_process_wait(exitstatus)
if Puppet.features.microsoft_windows?
Puppet::Util::Windows::Process.stubs(:wait_process).with(process_handle).returns(exitstatus)
Process.stubs(:CloseHandle).with(process_handle)
Process.stubs(:CloseHandle).with(thread_handle)
else
Process.stubs(:waitpid2).with(pid).returns([pid, stub('child_status', :exitstatus => exitstatus)])
end
end
describe "#execute_posix" do
before :each do
# Most of the things this method does are bad to do during specs. :/
Kernel.stubs(:fork).returns(pid).yields
Process.stubs(:setsid)
Kernel.stubs(:exec)
Puppet::Util::SUIDManager.stubs(:change_user)
Puppet::Util::SUIDManager.stubs(:change_group)
$stdin.stubs(:reopen)
$stdout.stubs(:reopen)
$stderr.stubs(:reopen)
@stdin = File.open(null_file, 'r')
@stdout = Tempfile.new('stdout')
@stderr = File.open(null_file, 'w')
end
it "should fork a child process to execute the command" do
Kernel.expects(:fork).returns(pid).yields
Kernel.expects(:exec).with('test command')
Puppet::Util.execute_posix('test command', {}, @stdin, @stdout, @stderr)
end
it "should start a new session group" do
Process.expects(:setsid)
Puppet::Util.execute_posix('test command', {}, @stdin, @stdout, @stderr)
end
it "should close all open file descriptors except stdin/stdout/stderr" do
# This is ugly, but I can't really think of a better way to do it without
# letting it actually close fds, which seems risky
(0..2).each {|n| IO.expects(:new).with(n).never}
(3..256).each {|n| IO.expects(:new).with(n).returns mock('io', :close) }
Puppet::Util.execute_posix('test command', {}, @stdin, @stdout, @stderr)
end
it "should permanently change to the correct user and group if specified" do
Puppet::Util::SUIDManager.expects(:change_group).with(55, true)
Puppet::Util::SUIDManager.expects(:change_user).with(50, true)
Puppet::Util.execute_posix('test command', {:uid => 50, :gid => 55}, @stdin, @stdout, @stderr)
end
it "should exit failure if there is a problem execing the command" do
Kernel.expects(:exec).with('test command').raises("failed to execute!")
Puppet::Util.stubs(:puts)
Puppet::Util.expects(:exit!).with(1)
Puppet::Util.execute_posix('test command', {}, @stdin, @stdout, @stderr)
end
it "should properly execute commands specified as arrays" do
Kernel.expects(:exec).with('test command', 'with', 'arguments')
Puppet::Util.execute_posix(['test command', 'with', 'arguments'], {:uid => 50, :gid => 55}, @stdin, @stdout, @stderr)
end
it "should properly execute string commands with embedded newlines" do
Kernel.expects(:exec).with("/bin/echo 'foo' ; \n /bin/echo 'bar' ;")
Puppet::Util.execute_posix("/bin/echo 'foo' ; \n /bin/echo 'bar' ;", {:uid => 50, :gid => 55}, @stdin, @stdout, @stderr)
end
it "should return the pid of the child process" do
Puppet::Util.execute_posix('test command', {}, @stdin, @stdout, @stderr).should == pid
end
end
describe "#execute_windows", :if => Puppet.features.microsoft_windows? do
before :each do
Process.stubs(:create).returns(proc_info_stub)
stub_process_wait(0)
@stdin = File.open(null_file, 'r')
@stdout = Tempfile.new('stdout')
@stderr = File.open(null_file, 'w')
end
it "should create a new process for the command" do
Process.expects(:create).with(
:command_line => "test command",
:startup_info => {:stdin => @stdin, :stdout => @stdout, :stderr => @stderr},
:close_handles => false
).returns(proc_info_stub)
Puppet::Util.execute_windows('test command', {}, @stdin, @stdout, @stderr)
end
it "should return the process info of the child process" do
Puppet::Util.execute_windows('test command', {}, @stdin, @stdout, @stderr).should == proc_info_stub
end
it "should quote arguments containing spaces if command is specified as an array" do
Process.expects(:create).with do |args|
args[:command_line] == '"test command" with some "arguments \"with spaces"'
end.returns(proc_info_stub)
Puppet::Util.execute_windows(['test command', 'with', 'some', 'arguments "with spaces'], {}, @stdin, @stdout, @stderr)
end
end
describe "#execute" do
before :each do
stub_process_wait(0)
end
describe "when an execution stub is specified" do
before :each do
Puppet::Util::ExecutionStub.set do |command,args,stdin,stdout,stderr|
"execution stub output"
end
end
it "should call the block on the stub" do
Puppet::Util.execute("/usr/bin/run_my_execute_stub").should == "execution stub output"
end
it "should not actually execute anything" do
Puppet::Util.expects(:execute_posix).never
Puppet::Util.expects(:execute_windows).never
Puppet::Util.execute("/usr/bin/run_my_execute_stub")
end
end
describe "when setting up input and output files" do
include PuppetSpec::Files
let(:executor) { Puppet.features.microsoft_windows? ? 'execute_windows' : 'execute_posix' }
let(:rval) { Puppet.features.microsoft_windows? ? proc_info_stub : pid }
before :each do
Puppet::Util.stubs(:wait_for_output)
end
it "should set stdin to the stdinfile if specified" do
input = tmpfile('stdin')
FileUtils.touch(input)
Puppet::Util.expects(executor).with do |_,_,stdin,_,_|
stdin.path == input
end.returns(rval)
Puppet::Util.execute('test command', :stdinfile => input)
end
it "should set stdin to the null file if not specified" do
Puppet::Util.expects(executor).with do |_,_,stdin,_,_|
stdin.path == null_file
end.returns(rval)
Puppet::Util.execute('test command')
end
describe "when squelch is set" do
it "should set stdout and stderr to the null file" do
Puppet::Util.expects(executor).with do |_,_,_,stdout,stderr|
stdout.path == null_file and stderr.path == null_file
end.returns(rval)
Puppet::Util.execute('test command', :squelch => true)
end
end
describe "when squelch is not set" do
it "should set stdout to a temporary output file" do
outfile = Tempfile.new('stdout')
Tempfile.stubs(:new).returns(outfile)
Puppet::Util.expects(executor).with do |_,_,_,stdout,_|
stdout.path == outfile.path
end.returns(rval)
Puppet::Util.execute('test command', :squelch => false)
end
it "should set stderr to the same file as stdout if combine is true" do
outfile = Tempfile.new('stdout')
Tempfile.stubs(:new).returns(outfile)
Puppet::Util.expects(executor).with do |_,_,_,stdout,stderr|
stdout.path == outfile.path and stderr.path == outfile.path
end.returns(rval)
Puppet::Util.execute('test command', :squelch => false, :combine => true)
end
it "should set stderr to the null device if combine is false" do
outfile = Tempfile.new('stdout')
Tempfile.stubs(:new).returns(outfile)
Puppet::Util.expects(executor).with do |_,_,_,stdout,stderr|
stdout.path == outfile.path and stderr.path == null_file
end.returns(rval)
Puppet::Util.execute('test command', :squelch => false, :combine => false)
end
end
end
describe "on Windows", :if => Puppet.features.microsoft_windows? do
it "should always close the process and thread handles" do
Puppet::Util.stubs(:execute_windows).returns(proc_info_stub)
Puppet::Util::Windows::Process.expects(:wait_process).with(process_handle).raises('whatever')
Process.expects(:CloseHandle).with(thread_handle)
Process.expects(:CloseHandle).with(process_handle)
expect { Puppet::Util.execute('test command') }.should raise_error(RuntimeError)
end
end
end
describe "after execution" do
before :each do
stub_process_wait(0)
if Puppet.features.microsoft_windows?
Puppet::Util.stubs(:execute_windows).returns(proc_info_stub)
else
Puppet::Util.stubs(:execute_posix).returns(pid)
end
end
it "should wait for the child process to exit" do
Puppet::Util.stubs(:wait_for_output)
Puppet::Util.execute('test command')
end
it "should close the stdin/stdout/stderr files used by the child" do
stdin = mock 'file', :close
stdout = mock 'file', :close
stderr = mock 'file', :close
File.expects(:open).
times(3).
returns(stdin).
then.returns(stdout).
then.returns(stderr)
Puppet::Util.execute('test command', :squelch => true)
end
it "should read and return the output if squelch is false" do
stdout = Tempfile.new('test')
Tempfile.stubs(:new).returns(stdout)
stdout.write("My expected command output")
Puppet::Util.execute('test command').should == "My expected command output"
end
it "should not read the output if squelch is true" do
stdout = Tempfile.new('test')
Tempfile.stubs(:new).returns(stdout)
stdout.write("My expected command output")
Puppet::Util.execute('test command', :squelch => true).should == nil
end
it "should delete the file used for output if squelch is false" do
stdout = Tempfile.new('test')
path = stdout.path
Tempfile.stubs(:new).returns(stdout)
Puppet::Util.execute('test command')
File.should_not be_exist(path)
end
it "should raise an error if failonfail is true and the child failed" do
stub_process_wait(1)
expect {
Puppet::Util.execute('fail command', :failonfail => true)
}.to raise_error(Puppet::ExecutionFailure, /Execution of 'fail command' returned 1/)
end
it "should not raise an error if failonfail is false and the child failed" do
stub_process_wait(1)
expect {
Puppet::Util.execute('fail command', :failonfail => false)
}.not_to raise_error
end
it "should not raise an error if failonfail is true and the child succeeded" do
expect {
Puppet::Util.execute('fail command', :failonfail => true)
}.not_to raise_error
end
end
end
describe "#execpipe" do
let :instance do
instance = Class.new.new
instance.send(:extend, Puppet::Util)
instance
end
it "should execute a string as a string" do
instance.expects(:open).with('| echo hello 2>&1').returns('hello')
$CHILD_STATUS.expects(:==).with(0).returns(true)
instance.execpipe('echo hello').should == 'hello'
end
it "should execute an array by pasting together with spaces" do
instance.expects(:open).with('| echo hello 2>&1').returns('hello')
$CHILD_STATUS.expects(:==).with(0).returns(true)
instance.execpipe(['echo', 'hello']).should == 'hello'
end
it "should fail if asked to fail, and the child does" do
instance.stubs(:open).returns('error message')
$CHILD_STATUS.expects(:==).with(0).returns(false)
expect { instance.execpipe('echo hello') }.
to raise_error Puppet::ExecutionFailure, /error message/
end
it "should not fail if asked not to fail, and the child does" do
instance.stubs(:open).returns('error message')
$CHILD_STATUS.stubs(:==).with(0).returns(false)
expect do
instance.execpipe('echo hello', false).should == 'error message'
end.not_to raise_error
end
end
describe "#which" do
let(:base) { File.expand_path('/bin') }
let(:path) { File.join(base, 'foo') }
before :each do
FileTest.stubs(:file?).returns false
FileTest.stubs(:file?).with(path).returns true
FileTest.stubs(:executable?).returns false
FileTest.stubs(:executable?).with(path).returns true
end
it "should accept absolute paths" do
Puppet::Util.which(path).should == path
end
it "should return nil if no executable found" do
Puppet::Util.which('doesnotexist').should be_nil
end
it "should reject directories" do
Puppet::Util.which(base).should be_nil
end
describe "on POSIX systems" do
before :each do
Puppet.features.stubs(:posix?).returns true
Puppet.features.stubs(:microsoft_windows?).returns false
end
it "should walk the search PATH returning the first executable" do
ENV.stubs(:[]).with('PATH').returns(File.expand_path('/bin'))
Puppet::Util.which('foo').should == path
end
end
describe "on Windows systems" do
let(:path) { File.expand_path(File.join(base, 'foo.CMD')) }
before :each do
Puppet.features.stubs(:posix?).returns false
Puppet.features.stubs(:microsoft_windows?).returns true
end
describe "when a file extension is specified" do
it "should walk each directory in PATH ignoring PATHEXT" do
ENV.stubs(:[]).with('PATH').returns(%w[/bar /bin].map{|dir| File.expand_path(dir)}.join(File::PATH_SEPARATOR))
FileTest.expects(:file?).with(File.join(File.expand_path('/bar'), 'foo.CMD')).returns false
ENV.expects(:[]).with('PATHEXT').never
Puppet::Util.which('foo.CMD').should == path
end
end
describe "when a file extension is not specified" do
it "should walk each extension in PATHEXT until an executable is found" do
bar = File.expand_path('/bar')
ENV.stubs(:[]).with('PATH').returns("#{bar}#{File::PATH_SEPARATOR}#{base}")
ENV.stubs(:[]).with('PATHEXT').returns(".EXE#{File::PATH_SEPARATOR}.CMD")
exts = sequence('extensions')
FileTest.expects(:file?).in_sequence(exts).with(File.join(bar, 'foo.EXE')).returns false
FileTest.expects(:file?).in_sequence(exts).with(File.join(bar, 'foo.CMD')).returns false
FileTest.expects(:file?).in_sequence(exts).with(File.join(base, 'foo.EXE')).returns false
FileTest.expects(:file?).in_sequence(exts).with(path).returns true
Puppet::Util.which('foo').should == path
end
it "should walk the default extension path if the environment variable is not defined" do
ENV.stubs(:[]).with('PATH').returns(base)
ENV.stubs(:[]).with('PATHEXT').returns(nil)
exts = sequence('extensions')
%w[.COM .EXE .BAT].each do |ext|
FileTest.expects(:file?).in_sequence(exts).with(File.join(base, "foo#{ext}")).returns false
end
FileTest.expects(:file?).in_sequence(exts).with(path).returns true
Puppet::Util.which('foo').should == path
end
it "should fall back if no extension matches" do
ENV.stubs(:[]).with('PATH').returns(base)
ENV.stubs(:[]).with('PATHEXT').returns(".EXE")
FileTest.stubs(:file?).with(File.join(base, 'foo.EXE')).returns false
FileTest.stubs(:file?).with(File.join(base, 'foo')).returns true
FileTest.stubs(:executable?).with(File.join(base, 'foo')).returns true
Puppet::Util.which('foo').should == File.join(base, 'foo')
end
end
end
end
describe "#binread" do
let(:contents) { "foo\r\nbar" }
it "should preserve line endings" do
path = tmpfile('util_binread')
File.open(path, 'wb') { |f| f.print contents }
Puppet::Util.binread(path).should == contents
end
it "should raise an error if the file doesn't exist" do
expect { Puppet::Util.binread('/path/does/not/exist') }.to raise_error(Errno::ENOENT)
end
end
context "#replace_file" do
describe "on POSIX platforms", :if => Puppet.features.posix? do
subject { Puppet::Util }
it { should respond_to :replace_file }
let :target do
target = Tempfile.new("puppet-util-replace-file")
target.puts("hello, world")
target.flush # make sure content is on disk.
target.fsync rescue nil
target.close
target
end
it "should fail if no block is given" do
expect { subject.replace_file(target.path, 0600) }.to raise_error /block/
end
it "should replace a file when invoked" do
# Check that our file has the expected content.
File.read(target.path).should == "hello, world\n"
# Replace the file.
subject.replace_file(target.path, 0600) do |fh|
fh.puts "I am the passenger..."
end
# ...and check the replacement was complete.
File.read(target.path).should == "I am the passenger...\n"
end
[0555, 0600, 0660, 0700, 0770].each do |mode|
it "should copy 0#{mode.to_s(8)} permissions from the target file by default" do
set_mode(mode, target.path)
get_mode(target.path).should == mode
subject.replace_file(target.path, 0000) {|fh| fh.puts "bazam" }
get_mode(target.path).should == mode
File.read(target.path).should == "bazam\n"
end
end
it "should copy the permissions of the source file before yielding" do
set_mode(0555, target.path)
inode = File.stat(target.path).ino unless Puppet.features.microsoft_windows?
yielded = false
subject.replace_file(target.path, 0600) do |fh|
get_mode(fh.path).should == 0555
yielded = true
end
yielded.should be_true
# We can't check inode on Windows
File.stat(target.path).ino.should_not == inode unless Puppet.features.microsoft_windows?
get_mode(target.path).should == 0555
end
it "should use the default permissions if the source file doesn't exist" do
new_target = target.path + '.foo'
File.should_not be_exist(new_target)
begin
subject.replace_file(new_target, 0555) {|fh| fh.puts "foo" }
get_mode(new_target).should == 0555
ensure
File.unlink(new_target) if File.exists?(new_target)
end
end
it "should not replace the file if an exception is thrown in the block" do
yielded = false
threw = false
begin
subject.replace_file(target.path, 0600) do |fh|
yielded = true
fh.puts "different content written, then..."
raise "...throw some random failure"
end
rescue Exception => e
if e.to_s =~ /some random failure/
threw = true
else
raise
end
end
yielded.should be_true
threw.should be_true
# ...and check the replacement was complete.
File.read(target.path).should == "hello, world\n"
end
end
describe "on Windows platforms" do
it "should fail and complain" do
Puppet.features.stubs(:microsoft_windows?).returns true
expect { Puppet::Util.replace_file("C:/foo", 0644) {} }.to raise_error(Puppet::DevError, "replace_file is non-functional on Windows")
end
end
end
end