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
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
|
#
# Author:: Daniel DeLeo (<dan@chef.io>)
# Copyright:: Copyright (c) 2013-2016 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 expressed or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License
#
require File.expand_path(File.dirname(__FILE__) + "/../spec_helper.rb")
describe Ohai::ProvidesMap do
let(:ohai_system) { Ohai::System.new }
let(:provides_map) { described_class.new }
let(:plugin_1) { Ohai::DSL::Plugin.new(ohai_system.data) }
let(:plugin_2) { Ohai::DSL::Plugin.new(ohai_system.data) }
let(:plugin_3) { Ohai::DSL::Plugin.new(ohai_system.data) }
let(:plugin_4) { Ohai::DSL::Plugin.new(ohai_system.data) }
describe "when looking up providing plugins for a single attribute" do
describe "when the attribute does not exist" do
it "raises Ohai::Exceptions::AttributeNotFound error" do
expect { provides_map.find_providers_for(["single"]) }.to raise_error(Ohai::Exceptions::AttributeNotFound, "No such attribute: 'single'")
end
end
describe "when the attribute does not have a provider" do
it "raises Ohai::Exceptions::ProviderNotFound error" do
provides_map.set_providers_for(plugin_1, ["first/second"])
expect { provides_map.find_providers_for(["first"]) }.to raise_error(Ohai::Exceptions::ProviderNotFound, "Cannot find plugin providing attribute: 'first'")
end
end
describe "when only one plugin provides the attribute" do
before do
provides_map.set_providers_for(plugin_1, ["single"])
end
it "returns the provider" do
expect(provides_map.find_providers_for(["single"])).to eq([plugin_1])
end
end
describe "when multiple plugins provide the attribute" do
before do
provides_map.set_providers_for(plugin_1, ["single"])
provides_map.set_providers_for(plugin_2, ["single"])
end
it "returns all providers" do
expect(provides_map.find_providers_for(["single"])).to eq([plugin_1, plugin_2])
end
end
end
describe "when looking up providing plugins for multiple attributes" do
describe "when a different plugin provides each attribute" do
before do
provides_map.set_providers_for(plugin_1, ["one"])
provides_map.set_providers_for(plugin_2, ["two"])
end
it "returns each provider" do
expect(provides_map.find_providers_for(%w{one two})).to eq([plugin_1, plugin_2])
end
end
describe "when one plugin provides both requested attributes" do
before do
provides_map.set_providers_for(plugin_1, ["one"])
provides_map.set_providers_for(plugin_1, ["one_again"])
end
it "returns unique providers" do
expect(provides_map.find_providers_for(%w{one one_again})).to eq([plugin_1])
end
end
end
describe "when looking up providers for multi-level attributes" do
describe "when the full attribute exists in the map" do
before do
provides_map.set_providers_for(plugin_1, ["top/middle/bottom"])
end
it "collects the provider" do
expect(provides_map.find_providers_for(["top/middle/bottom"])).to eq([plugin_1])
end
end
end
describe "when setting multi-level attributes" do
describe "when the attribute contains //" do
it "raises an Ohai::Exceptions::AttributeSyntaxError" do
expect { provides_map.set_providers_for(plugin_1, ["this/plugin//is/bad"]) }.to raise_error(Ohai::Exceptions::AttributeSyntaxError, "Attribute contains duplicate '/' characters: this/plugin//is/bad")
end
end
describe "when the attribute has a trailing slash" do
it "raises an Ohai::Exceptions::AttributeSyntaxError" do
expect { provides_map.set_providers_for(plugin_1, ["this/plugin/is/bad/"]) }.to raise_error(Ohai::Exceptions::AttributeSyntaxError, "Attribute contains a trailing '/': this/plugin/is/bad/")
end
end
end
describe "when looking for providers of attributes specified in CLI" do
before do
provides_map.set_providers_for(plugin_1, ["cat/whiskers"])
provides_map.set_providers_for(plugin_2, ["cat/paws", "cat/paws/toes"])
provides_map.set_providers_for(plugin_3, ["cat/mouth/teeth"])
end
it "finds providers for subattributes if any exists when the attribute doesn't have a provider" do
providers = provides_map.deep_find_providers_for(["cat"])
expect(providers).to have(3).plugins
expect(providers).to include(plugin_1)
expect(providers).to include(plugin_2)
expect(providers).to include(plugin_3)
end
it "finds providers for the first parent attribute when the attribute or any subattributes doesn't have a provider" do
providers = provides_map.deep_find_providers_for(["cat/paws/front"])
expect(providers).to eq([plugin_2])
end
end
describe "when looking for the closest providers" do
describe "and the full attribute is provided" do
before do
provides_map.set_providers_for(plugin_1, ["do/not/eat/metal"])
end
it "returns the provider of the full attribute" do
expect(provides_map.find_closest_providers_for(["do/not/eat/metal"])).to eql([plugin_1])
end
end
describe "and the full attribute is not provided" do
before do
provides_map.set_providers_for(plugin_1, ["do/not/eat"])
end
it "does not raise error if a parent attribute is provided" do
expect { provides_map.find_closest_providers_for(["do/not/eat/plastic"]) }.not_to raise_error
end
it "returns the providers of the closest parent attribute" do
provides_map.set_providers_for(plugin_2, ["do/not"]) # set a less-specific parent
expect(provides_map.find_closest_providers_for(["do/not/eat/glass"])).to eql([plugin_1])
end
it "raises error if the least-specific parent is not an attribute" do
expect { provides_map.find_closest_providers_for(["please/eat/your/vegetables"]) }.to raise_error(Ohai::Exceptions::AttributeNotFound, "No such attribute: 'please/eat/your/vegetables'")
end
it "raises error if no parent attribute has a provider" do
expect { provides_map.find_closest_providers_for(["do/not"]) }.to raise_error(Ohai::Exceptions::ProviderNotFound, "Cannot find plugin providing attribute: 'do/not'")
end
end
end
describe "when listing all plugins" do
before do
provides_map.set_providers_for(plugin_1, ["one"])
provides_map.set_providers_for(plugin_2, ["two"])
provides_map.set_providers_for(plugin_3, ["stub/three"])
provides_map.set_providers_for(plugin_4, ["foo/bar/four", "also/this/four"])
end
it "finds all the plugins providing attributes" do
all_plugins = provides_map.all_plugins
expect(all_plugins).to have(4).plugins
expect(all_plugins).to include(plugin_1)
expect(all_plugins).to include(plugin_2)
expect(all_plugins).to include(plugin_3)
expect(all_plugins).to include(plugin_4)
end
describe "with an attribute filter" do
it "finds plugins with a single level of attribute" do
expect(provides_map.all_plugins("one")).to eq([plugin_1])
end
it "finds plugins with an exact match for multiple levels of attribute" do
expect(provides_map.all_plugins("stub/three")).to eq([plugin_3])
end
it "finds plugins that provide subattributes of the requested path" do
expect(provides_map.all_plugins("stub")).to eq([plugin_3])
expect(provides_map.all_plugins("foo/bar")).to eq([plugin_4])
end
end
end
end
|
