kernel_parameter does not show fully info when test fails

[nvtkaszpir]

Description

When using kernel_parameter in the test and it fails then the message is missing detailed explanation what actually failed - unless you have insanely detailed tests.

InSpec and Platform Version

Tinspec 0.32.0
ubuntu 15.10 testing remotely on 14.04

Replication Case

title 'test kernel_parameter'

control 'test-kernel_parameter-999' do
  impact 1.0
  title 'verify certain settings in sysctl'
  desc 'tuning system/kernel'

  describe kernel_parameter('net.core.somaxconn') do
    its('value') { should be >= 18419238472 } # this should fail some random insane value to make it invalid
  end
  describe kernel_parameter('net.core.somaxconn') do
    its('value') { should be > 100 } # this should pass
  end
end

output:

  ✖  test-kernel_parameter-999: verify certain settings in sysctl (1 failed)
     ✖  expected: >= 18419238472
          got:    128
     ✔  Kernel Parameter net.core.somaxconn value should be > 100

As we can see:

• first one fails, but does not say that it refers to net.core.somaxconn
• second test shows that net.core.somaxconn is valid.

Possible Solutions

Verify that kernel_parameter actually shows full output when it fails.

Expected output something like this:

  ✖  test-kernel_parameter-999: verify certain settings in sysctl (1 failed)
     ✖  expected: net.core.somaxconn >= 18419238472
          got:    128
     ✔  Kernel Parameter net.core.somaxconn value should be > 100

Stacktrace

No stacktrace.

[chris-rock]

@nvtkaszpir that is a very good recommendation for improvement