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