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# frozen_string_literal: true
RSpec.describe Morpher::Transform::Error do
subject { described_class.new(attributes) }
let(:message) { 'root-message' }
let(:direct_cause) { nil }
let(:indirect_cause) { nil }
let(:attributes) do
transform =
if direct_cause
Morpher::Transform::Named.new('root', direct_cause.transform)
else
Morpher::Transform::Boolean.new
end
{
cause: direct_cause,
input: nil,
message: message,
transform: transform
}
end
shared_context 'direct cause' do
let(:direct_cause) do
transform =
if indirect_cause
Morpher::Transform::Named.new('direct-cause', indirect_cause.transform)
else
Morpher::Transform::Boolean.new
end
described_class.new(
cause: indirect_cause,
input: nil,
message: 'direct-cause-message',
transform: transform
)
end
end
shared_examples 'indirect cause' do
let(:indirect_cause) do
described_class.new(
cause: nil,
input: nil,
message: 'indirect-cause-message',
transform: Morpher::Transform::Boolean.new
)
end
end
describe '#trace' do
def apply
subject.trace
end
context 'without cause' do
it 'returns path to self' do
expect(apply).to eql([subject])
end
end
context 'with direct cause' do
include_context 'direct cause'
it 'returns path to direct cause' do
expect(apply).to eql([subject, direct_cause])
end
end
context 'with indirect cause' do
include_context 'direct cause'
include_context 'indirect cause'
it 'returns path to direct cause' do
expect(apply).to eql([subject, direct_cause, indirect_cause])
end
end
end
describe '#compact_message' do
def apply
subject.compact_message
end
context 'root cause' do
it 'returns expected message' do
expect(apply).to eql('Morpher::Transform::Boolean: root-message')
end
end
context 'with direct cause' do
include_context 'direct cause'
it 'returns expected message' do
expect(apply).to eql(<<~'MESSAGE'.chomp)
root/Morpher::Transform::Boolean: direct-cause-message
MESSAGE
end
end
context 'with indirect cause' do
include_context 'direct cause'
include_context 'indirect cause'
context 'with present slugs' do
it 'returns expected message' do
expect(apply).to eql(<<~'MESSAGE'.chomp)
root/direct-cause/Morpher::Transform::Boolean: indirect-cause-message
MESSAGE
end
end
context 'with empty slug' do
let(:direct_cause) do
super().with(
transform: Morpher::Transform::Named.new('', indirect_cause.transform)
)
end
it 'returns expected message' do
expect(apply).to eql(<<~'MESSAGE'.chomp)
root/Morpher::Transform::Boolean: indirect-cause-message
MESSAGE
end
end
end
end
end
|
