mirror of
https://github.com/inspec/inspec
synced 2024-11-30 16:39:20 +00:00
136 lines
2.5 KiB
Markdown
136 lines
2.5 KiB
Markdown
---
|
|
title: InSpec Matchers Reference
|
|
---
|
|
|
|
# InSpec Matchers Reference
|
|
|
|
Inspec uses matchers to help compare resource values to expectations.
|
|
The following matchers are available:
|
|
|
|
* `be`
|
|
* `cmp`
|
|
* `eq`
|
|
* `include`
|
|
* `match`
|
|
|
|
## be
|
|
|
|
This matcher can be followed by many different comparison operators.
|
|
Always make sure to use numbers, not strings, for these comparisons.
|
|
|
|
```ruby
|
|
describe file('/proc/cpuinfo') do
|
|
its('size') { should be >= 10 }
|
|
its('size') { should be < 1000 }
|
|
end
|
|
```
|
|
|
|
## cmp
|
|
|
|
Unlike `eq`, cmp is a matcher for less-restrictive comparisons. It will
|
|
try to fit the actual value to the type you are comparing it to. This is
|
|
meant to relieve the user from having to write type-casts and
|
|
resolutions.
|
|
|
|
```ruby
|
|
describe sshd_config do
|
|
its('Protocol') { should cmp 2 }
|
|
end
|
|
|
|
describe passwd.uid(0) do
|
|
its('users') { should cmp 'root' }
|
|
end
|
|
```
|
|
|
|
`cmp` behaves in the following way:
|
|
|
|
* Compare strings to numbers
|
|
|
|
```ruby
|
|
describe sshd_config do
|
|
its('Protocol') { should eq '2' }
|
|
|
|
its('Protocol') { should cmp '2' }
|
|
its('Protocol') { should cmp 2 }
|
|
end
|
|
```
|
|
|
|
* String comparisons are not case-sensitive
|
|
|
|
```ruby
|
|
describe auditd_conf do
|
|
its('log_format') { should cmp 'raw' }
|
|
its('log_format') { should cmp 'RAW' }
|
|
end
|
|
```
|
|
|
|
* Compare arrays with only one entry to a value
|
|
|
|
```ruby
|
|
describe passwd.uids(0) do
|
|
its('users') { should cmp 'root' }
|
|
its('users') { should cmp ['root'] }
|
|
end
|
|
```
|
|
|
|
* Single-value arrays of strings may also be compared to a regex
|
|
|
|
```ruby
|
|
describe auditd_conf do
|
|
its('log_format') { should cmp /raw/i }
|
|
end
|
|
```
|
|
|
|
* Improved printing of octal comparisons
|
|
|
|
```ruby
|
|
describe file('/proc/cpuinfo') do
|
|
its('mode') { should cmp '0345' }
|
|
end
|
|
|
|
expected: 0345
|
|
got: 0444
|
|
```
|
|
|
|
## eq
|
|
|
|
Test for exact equality of two values.
|
|
|
|
```ruby
|
|
describe sshd_config do
|
|
its('RSAAuthentication') { should_not eq 'no' }
|
|
its('Protocol') { should eq '2' }
|
|
end
|
|
```
|
|
|
|
It fails if types don't match. Please keep this in mind, when comparing
|
|
configuration entries that are numbers:
|
|
|
|
```ruby
|
|
its('Port') { should eq '22' } # ok
|
|
|
|
its('Port') { should eq 22 }
|
|
# fails: '2' != 2 (string vs int)
|
|
```
|
|
|
|
For less restrictive comparisons, please use `cmp`.
|
|
|
|
## include
|
|
|
|
Verifies if a value is included in a list.
|
|
|
|
```ruby
|
|
describe passwd do
|
|
its('users') { should include 'my_user' }
|
|
end
|
|
```
|
|
|
|
## match
|
|
|
|
Check if a string matches a regular expression.
|
|
|
|
```ruby
|
|
describe sshd_config do
|
|
its('Ciphers') { should_not match /cbc/ }
|
|
end
|
|
```
|