trabajo-afectivo/spec/lib/application_handle_info_spec.rb

107 lines
3.5 KiB
Ruby
Raw Normal View History

# Copyright (C) 2012-2021 Zammad Foundation, http://zammad-foundation.org/
require 'rails_helper'
RSpec.describe ApplicationHandleInfo do
shared_context 'safe block execution' do |attribute:|
# This `around` block is identical to ApplicationHandleInfo.use.
#
# Q: So why don't we just use it here to DRY things up?
# A: Because that's the method we're trying to test, dummy!
#
# Q: Why can't we do `before { ApplicationHandleInfo.current = 'foo' }` instead?
# A: Because that would change `ApplicationHandleInfo.current` for all subsequent specs.
# (RSpec uses database transactions to keep test environments clean,
# but `ApplicationHandleInfo.current` lives outside of the database.)
around do |example|
original = described_class.send(attribute)
described_class.send("#{attribute}=", 'foo')
example.run
described_class.send("#{attribute}=", original)
end
end
describe '.use' do
it 'requires a block' do
expect { described_class.use('foo') }
.to raise_error(ArgumentError)
end
context 'for a given starting ApplicationHandleInfo' do
include_examples 'safe block execution', attribute: :current
it 'runs the block using the given ApplicationHandleInfo' do
described_class.use('bar') do
expect(described_class.current).to eq('bar')
end
end
it 'resets ApplicationHandleInfo to its original value' do
described_class.use('bar') { nil }
expect(described_class.current).to eq('foo')
end
context 'when an error is raised in the given block' do
it 'does not rescue the error, and still resets ApplicationHandleInfo' do
expect { described_class.use('bar') { raise } }
.to raise_error(StandardError)
.and not_change(described_class, :current)
end
end
end
end
describe '.in_context' do
it 'requires a block' do
expect { described_class.use('foo') }
.to raise_error(ArgumentError)
end
context 'for a given starting ApplicationHandleInfo' do
include_examples 'safe block execution', attribute: :context
it 'runs the block using the given ApplicationHandleInfo' do
described_class.in_context('bar') do
expect(described_class.context).to eq('bar')
end
end
it 'resets ApplicationHandleInfo to its original value' do
described_class.in_context('bar') { nil }
expect(described_class.context).to eq('foo')
end
context 'when an error is raised in the given block' do
it 'does not rescue the error, and still resets ApplicationHandleInfo' do
expect { described_class.in_context('bar') { raise } }
.to raise_error(StandardError)
.and not_change(described_class, :context)
end
end
end
end
describe '.context_without_custom_attributes?' do
it 'returns false when set to default context' do
expect(described_class).not_to be_context_without_custom_attributes
end
context 'for a given starting ApplicationHandleInfo' do
include_examples 'safe block execution', attribute: :context
it 'returns true when set to context that does not use custom attributes' do
described_class.context = 'merge'
expect(described_class).to be_context_without_custom_attributes
end
it 'returns true when in .in_context block' do
described_class.in_context(:merge) do
expect(described_class).to be_context_without_custom_attributes
end
end
end
end
end