1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
#
# Author:: John Keiser (<jkeiser@chef.io>)
# Copyright:: Copyright 2013-2017, Chef Software Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
require "chef/config"
require "chef/knife"
require "chef/application/knife"
require "logger"
require "chef/log"
require "chef/chef_fs/file_system_cache"
module KnifeSupport
DEBUG = ENV["DEBUG"]
def knife(*args, input: nil)
# Allow knife('role from file roles/blah.json') rather than requiring the
# arguments to be split like knife('role', 'from', 'file', 'roles/blah.json')
# If any argument will have actual spaces in it, the long form is required.
# (Since knife commands always start with the command name, and command
# names with spaces are always multiple args, this is safe.)
if args.length == 1
args = args[0].split(/\s+/)
end
# Make output stable
Chef::Config[:concurrency] = 1
# Work on machines where we can't access /var
Dir.mktmpdir("checksums") do |checksums_cache_dir|
Chef::Config[:cache_options] = {
:path => checksums_cache_dir,
:skip_expires => true,
}
# This is Chef::Knife.run without load_commands--we'll load stuff
# ourselves, thank you very much
stdout = StringIO.new
stderr = StringIO.new
stdin = if input
StringIO.new(input)
else
STDIN
end
old_loggers = Chef::Log.loggers
old_log_level = Chef::Log.level
begin
puts "knife: #{args.join(' ')}" if DEBUG
subcommand_class = Chef::Knife.subcommand_class_from(args)
subcommand_class.options = Chef::Application::Knife.options.merge(subcommand_class.options)
subcommand_class.load_deps
instance = subcommand_class.new(args)
# Load configs
instance.merge_configs
# Capture stdout/stderr
instance.ui = Chef::Knife::UI.new(stdout, stderr, stdin, instance.config.merge(disable_editing: true))
# Don't print stuff
Chef::Config[:verbosity] = ( DEBUG ? 2 : 0 )
instance.config[:config_file] = File.join(CHEF_SPEC_DATA, "null_config.rb")
# Ensure the ChefFS cache is empty
Chef::ChefFS::FileSystemCache.instance.reset!
# Configure chef with a (mostly) blank knife.rb
# We set a global and then mutate it in our stub knife.rb so we can be
# extra sure that we're not loading someone's real knife.rb and then
# running test scenarios against a real chef server. If things don't
# smell right, abort.
$__KNIFE_INTEGRATION_FAILSAFE_CHECK = "ole"
instance.configure_chef
unless $__KNIFE_INTEGRATION_FAILSAFE_CHECK == "ole ole"
raise Exception, "Potential misconfiguration of integration tests detected. Aborting test."
end
logger = Logger.new(stderr)
logger.formatter = proc { |severity, datetime, progname, msg| "#{severity}: #{msg}\n" }
Chef::Log.use_log_devices([logger])
Chef::Log.level = ( DEBUG ? :debug : :warn )
Chef::Log::Formatter.show_time = false
instance.run_with_pretty_exceptions(true)
exit_code = 0
# This is how rspec catches exit()
rescue SystemExit => e
exit_code = e.status
ensure
Chef::Log.use_log_devices(old_loggers)
Chef::Log.level = old_log_level
Chef::Config.delete(:cache_options)
Chef::Config.delete(:concurrency)
end
KnifeResult.new(stdout.string, stderr.string, exit_code)
end
end
class KnifeResult
include ::RSpec::Matchers
def initialize(stdout, stderr, exit_code)
@stdout = stdout
@stderr = stderr
@exit_code = exit_code
end
attr_reader :stdout
attr_reader :stderr
attr_reader :exit_code
def should_fail(*args)
expected = {}
args.each do |arg|
if arg.is_a?(Hash)
expected.merge!(arg)
elsif arg.is_a?(Integer)
expected[:exit_code] = arg
else
expected[:stderr] = arg
end
end
expected[:exit_code] = 1 if !expected[:exit_code]
should_result_in(expected)
end
def should_succeed(*args)
expected = {}
args.each do |arg|
if arg.is_a?(Hash)
expected.merge!(arg)
else
expected[:stdout] = arg
end
end
should_result_in(expected)
end
private
def should_result_in(expected)
expected[:stdout] = "" if !expected[:stdout]
expected[:stderr] = "" if !expected[:stderr]
expected[:exit_code] = 0 if !expected[:exit_code]
# TODO make this go away
stderr_actual = @stderr.sub(/^WARNING: No knife configuration file found\n/, "")
if expected[:stderr].is_a?(Regexp)
expect(stderr_actual).to match(expected[:stderr])
else
expect(stderr_actual).to eq(expected[:stderr])
end
stdout_actual = @stdout
if Chef::Platform.windows?
stderr_actual = stderr_actual.gsub("\r\n", "\n")
stdout_actual = stdout_actual.gsub("\r\n", "\n")
end
expect(@exit_code).to eq(expected[:exit_code])
if expected[:stdout].is_a?(Regexp)
expect(stdout_actual).to match(expected[:stdout])
else
expect(stdout_actual).to eq(expected[:stdout])
end
end
end
end
|