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|
# frozen_string_literal: true
RSpec.describe Morpher::Transform::Primitive do
subject { described_class.new(primitive) }
let(:primitive) { String }
describe '#slug' do
def apply
subject.slug
end
it 'returns strigified primitive' do
expect(apply).to eql('String')
end
it 'is idempotent' do
expect(apply).to be(apply)
end
it 'is frozen' do
expect(apply.frozen?).to be(true)
end
end
describe '#call' do
def apply
subject.call(input)
end
context 'on string input' do
let(:input) { 'some-string' }
it 'returns sucess' do
expect(apply).to eql(right(input))
end
end
context 'on other input' do
let(:input) { 1 }
let(:error) do
Morpher::Transform::Error.new(
cause: nil,
input: input,
message: 'Expected: String but got: Integer',
transform: subject
)
end
it 'returns failure' do
expect(apply).to eql(left(error))
end
end
end
end
|
