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|
Feature: Set environment variable via API-method
It is quite handy to modify the environment of a process. To make this
possible, `aruba` provides several methods. One of these is
`#set_environment_variable`. Using this sets the value of a
non-existing variable and overwrites an existing value. Each variable name
and each value is converted to a string. Otherwise `ruby` would complain
about an invalid argument. To make use of a variable you can either use `#run`
and the like or `#with_environment`. Besides setting a variable globally, you
can set one for a block of code only using `#with_environment`.
Background:
Given I use the fixture "cli-app"
Scenario: Setting a new variable
Given a file named "spec/environment_spec.rb" with:
"""ruby
require 'spec_helper'
RSpec.describe 'running env', :type => :aruba do
before do
set_environment_variable 'LONG_LONG_VARIABLE', '1'
run_command('env')
stop_all_commands
end
it "outputs the value set and restores the original" do
expect(last_command_started.output).to include 'LONG_LONG_VARIABLE=1'
expect(ENV['LONG_LONG_VARIABLE']).to be_nil
end
end
"""
When I run `rspec`
Then the specs should all pass
Scenario: Overriding a previously set variable
Given a file named "spec/environment_spec.rb" with:
"""ruby
require 'spec_helper'
RSpec.describe 'running env', :type => :aruba do
before do
set_environment_variable 'LONG_LONG_VARIABLE', '1'
set_environment_variable 'LONG_LONG_VARIABLE', '2'
run_command('env')
stop_all_commands
end
it "outputs the last values set" do
expect(last_command_started.output).to include 'LONG_LONG_VARIABLE=2'
end
end
"""
When I run `rspec`
Then the specs should all pass
Scenario: Updating a variable previously set via ENV
Given a file named "spec/environment_spec.rb" with:
"""ruby
require 'spec_helper'
ENV['REALLY_LONG_LONG_VARIABLE'] = '1'
RSpec.describe 'running env', :type => :aruba do
before do
set_environment_variable 'REALLY_LONG_LONG_VARIABLE', '2'
run_command('env')
stop_all_commands
end
it "outputs the value set and restores the original" do
expect(last_command_started.output).to include 'REALLY_LONG_LONG_VARIABLE=2'
expect(ENV['REALLY_LONG_LONG_VARIABLE']).to eq '1'
end
end
"""
When I run `rspec`
Then the specs should all pass
Scenario: Set variable via ENV
Given a file named "spec/environment_spec.rb" with:
"""ruby
require 'spec_helper'
RSpec.describe 'Environment command', :type => :aruba do
before do
ENV['REALLY_LONG_LONG_VARIABLE'] = '2'
run_command('env')
stop_all_commands
end
it "outputs the value set and keeps it" do
expect(last_command_started.output).to include 'REALLY_LONG_LONG_VARIABLE=2'
expect(ENV['REALLY_LONG_LONG_VARIABLE']).to eq '2'
end
end
"""
When I run `rspec`
Then the specs should all pass
Scenario: Existing variable set in before block in RSpec
Setting environment variables with `#set_environment_variable('VAR', 'value')` takes
precedence before setting variables with `ENV['VAR'] = 'value'`.
Given a file named "spec/environment_spec.rb" with:
"""ruby
require 'spec_helper'
RSpec.describe 'Environment command', :type => :aruba do
before do
set_environment_variable 'REALLY_LONG_LONG_VARIABLE', '1'
ENV['REALLY_LONG_LONG_VARIABLE'] = '2'
run_command('env')
stop_all_commands
end
it "outputs the value set by #set_environment_variable" do
expect(last_command_started.output).to include 'REALLY_LONG_LONG_VARIABLE=1'
end
end
"""
When I run `rspec`
Then the specs should all pass
Scenario: Run some ruby code in code with previously set environment
The `#with_environment`-block makes the changed environment temporarily
available for the code run within the block.
Given a file named "spec/environment_spec.rb" with:
"""ruby
require 'spec_helper'
RSpec.describe 'Environment command', :type => :aruba do
before do
ENV['REALLY_LONG_LONG_VARIABLE'] = '1'
set_environment_variable 'REALLY_LONG_LONG_VARIABLE', '2'
end
it do
with_environment do
expect(ENV['REALLY_LONG_LONG_VARIABLE']).to eq '2'
end
expect(ENV['REALLY_LONG_LONG_VARIABLE']).to eq '1'
end
end
"""
When I run `rspec`
Then the specs should all pass
Scenario: Run some ruby code with local environment
If you need to set some environment variables only for the given block.
Pass it an `Hash` containing the environment variables.
Given a file named "spec/environment_spec.rb" with:
"""ruby
require 'spec_helper'
RSpec.describe 'Environment command', :type => :aruba do
before do
ENV['REALLY_LONG_LONG_VARIABLE'] = '1'
set_environment_variable 'REALLY_LONG_LONG_VARIABLE', '2'
end
it do
with_environment 'REALLY_LONG_LONG_VARIABLE' => '3' do
expect(ENV['REALLY_LONG_LONG_VARIABLE']).to eq '3'
end
expect(ENV['REALLY_LONG_LONG_VARIABLE']).to eq '1'
end
end
"""
When I run `rspec`
Then the specs should all pass
Scenario: When an error occures the ENV is not polluted
Given a file named "spec/environment_spec.rb" with:
"""ruby
require 'spec_helper'
RSpec.describe 'Environment command', :type => :aruba do
before do
ENV['REALLY_LONG_LONG_VARIABLE'] = '1'
set_environment_variable 'REALLY_LONG_LONG_VARIABLE', '2'
end
it do
begin
with_environment 'REALLY_LONG_LONG_VARIABLE' => '3' do
fail
end
rescue StandardError
end
expect(ENV['REALLY_LONG_LONG_VARIABLE']).to eq '1'
end
end
"""
When I run `rspec`
Then the specs should all pass
Scenario: Run some ruby code with nested environment blocks
It is possible to use a `#with_environment`-block with a
`#with_environment`-block. Each previously set variable is available with
the most inner block.
Given a file named "spec/environment_spec.rb" with:
"""ruby
require 'spec_helper'
RSpec.describe 'Environment command', :type => :aruba do
before do
ENV['LONG_LONG_VARIABLE'] = '1'
ENV['REALLY_LONG_LONG_VARIABLE'] = '1'
end
it do
with_environment 'REALLY_LONG_LONG_VARIABLE' => 2 do
with_environment 'LONG_LONG_VARIABLE' => 3 do
expect(ENV['LONG_LONG_VARIABLE']).to eq '3'
expect(ENV['REALLY_LONG_LONG_VARIABLE']).to eq '2'
end
end
expect(ENV['REALLY_LONG_LONG_VARIABLE']).to eq '1'
end
end
"""
When I run `rspec`
Then the specs should all pass
@unsupported-on-platform-windows
Scenario: Mixed-Case variable
Given a file named "spec/environment_spec.rb" with:
"""ruby
require 'spec_helper'
RSpec.describe 'Environment command', :type => :aruba do
before { set_environment_variable 'long_LONG_VARIABLE', '1' }
before { run_command('env') }
before { stop_all_commands }
it { expect(last_command_started.output).to include 'long_LONG_VARIABLE=1' }
end
"""
When I run `rspec`
Then the specs should all pass
@unsupported-on-platform-unix
@unsupported-on-platform-mac
Scenario: Mixed-Case variable
Given a file named "spec/environment_spec.rb" with:
"""ruby
require 'spec_helper'
RSpec.describe 'Environment command', :type => :aruba do
before { set_environment_variable 'long_LONG_VARIABLE', '1' }
before { run_command('env') }
before { stop_all_commands }
it { expect(last_command_started.output).to include 'LONG_LONG_VARIABLE=1' }
end
"""
When I run `rspec`
Then the specs should all pass
|
