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|
# frozen_string_literal: true
RSpec.describe Morpher::Transform::Index do
subject { described_class.new(index: index, transform: transform) }
let(:index) { 1 }
let(:transform) { Morpher::Transform::Boolean.new }
describe '#slug' do
def apply
subject.slug
end
it 'retursn expected value' do
expect(apply).to eql('1')
end
it 'returns frozen value' do
expect(apply.frozen?).to be(true)
end
it 'returns idempotent value' do
expect(apply).to be(apply)
end
end
describe '#call' do
def apply
subject.call(input)
end
context 'on valid input' do
let(:input) { true }
it 'returns sucess' do
expect(apply).to eql(right(input))
end
end
context 'on nvalid input' do
let(:input) { 1 }
let(:boolean_error) do
Morpher::Transform::Error.new(
cause: nil,
input: input,
message: 'Expected: boolean but got: 1',
transform: transform
)
end
let(:error) do
Morpher::Transform::Error.new(
cause: boolean_error,
input: input,
message: nil,
transform: subject
)
end
it 'returns failure' do
expect(apply).to eql(left(error))
end
end
end
describe '.wrap' do
def apply
described_class.wrap(error, index)
end
let(:error) do
Morpher::Transform::Error.new(
cause: :nil,
input: 1,
message: nil,
transform: transform
)
end
it 'returns wrapped error' do
expect(apply).to eql(
Morpher::Transform::Error.new(
cause: error,
input: 1,
message: nil,
transform: described_class.new(index: index, transform: transform)
)
)
end
end
end
|
