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require 'nenv'
RSpec.describe Nenv do
let(:env) { instance_double(Hash) } # Hash is close enough
before { stub_const('ENV', env) }
describe 'Nenv() helper method' do
it 'reads from env' do
expect(ENV).to receive(:[]).with('GIT_BROWSER').and_return('chrome')
Nenv('git').browser
end
it 'return the value from env' do
allow(ENV).to receive(:[]).with('GIT_BROWSER').and_return('firefox')
expect(Nenv('git').browser).to eq('firefox')
end
end
describe 'Nenv() helper method with block' do
it 'reads from env' do
expect(ENV).to receive(:[]).with('GIT_BROWSER').and_return('chrome')
Nenv('git') do |git|
git.browser
end
end
it 'return the value from env' do
allow(ENV).to receive(:[]).with('GIT_BROWSER').and_return('firefox')
result = nil
Nenv('git') do |git|
result = git.browser
end
expect(result).to eq('firefox')
end
end
describe 'Nenv module' do
it 'reads from env' do
expect(ENV).to receive(:[]).with('CI').and_return('true')
Nenv.ci?
end
it 'return the value from env' do
allow(ENV).to receive(:[]).with('CI').and_return('false')
expect(Nenv.ci?).to be(false)
end
context 'with no method' do
it 'automatically creates the method' do
expect(ENV).to receive(:[]).with('FOO').and_return('true')
Nenv.foo?
end
end
context 'with existing method' do
before do
Nenv.method(:reset).call
Nenv.instance.create_method(:foo?)
end
it 'reads from env' do
expect(ENV).to receive(:[]).with('FOO').and_return('true')
Nenv.foo?
end
it 'return the value from env' do
expect(ENV).to receive(:[]).with('FOO').and_return('true')
expect(Nenv.foo?).to be(true)
end
end
end
# Test added here to properly test if builder is required
describe 'Nenv builder' do
before do
allow(ENV).to receive(:[]).with('FOO').and_return('false')
end
it 'is required and works' do
FooEnv = Nenv::Builder.build do
create_method(:foo?)
end
FooEnv.new.foo?
end
end
end
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