Write and explain a simple InSpec test?

1.	Write and explain a simple InSpec test?
Answer» InSpec is an in-built testing framework for testing and auditing infrastructure in Chef. A sample InSpec test to verify whether “Nginx” server is INSTALLED and running in a system could be written as follows: ```control 'Nginx-install-1.0' do title 'Check if nginx is installed' describe package 'nginx' do it { should be_installed } end end control 'Nginx should be running' do describe service 'nginx' do it { should be_running } end end``` Main components of InSpec tests are: Control: A requirement is defined inside a control block Title: Title defines the metadata of the control block describing the importance of the requirement. Resource: Resources are the basic building blocks of infrastructure. A control block may have multiple resources. Resources could be anything like file, package, service, etc. Describe: Tests for a particular resource is GROUPED into a describe block. A control block should have a minimum one describe block. A describe block is defined within a “do end” block It or its: Each line starting with "it" or "its" is a test to access resource-specific MATCHER. “should be_installed” and “should be_running” are in-built METHODS in DSL to verify whether the package is installed and whether the service is running.

Answer»

InSpec is an in-built testing framework for testing and auditing infrastructure in Chef. A sample InSpec test to verify whether “Nginx” server is INSTALLED and running in a system could be written as follows:

```control 'Nginx-install-1.0' do title 'Check if nginx is installed' describe package 'nginx' do it { should be_installed } end end control 'Nginx should be running' do describe service 'nginx' do it { should be_running } end end```

Main components of InSpec tests are:

Control: A requirement is defined inside a control block
Title: Title defines the metadata of the control block describing the importance of the requirement.
Resource: Resources are the basic building blocks of infrastructure. A control block may have multiple resources. Resources could be anything like file, package, service, etc.
Describe: Tests for a particular resource is GROUPED into a describe block. A control block should have a minimum one describe block. A describe block is defined within a “do end” block
It or its: Each line starting with "it" or "its" is a test to access resource-specific MATCHER. “should be_installed” and “should be_running” are in-built METHODS in DSL to verify whether the package is installed and whether the service is running.

Write and explain a simple InSpec test?

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