Sha256: df5a4d9e5c03453878b064cbfffb5558a587c70c73eb34d2c7ae1791b59cc092
Contents?: true
Size: 691 Bytes
Versions: 9
Compression:
Stored size: 691 Bytes
Contents
RSpec.describe Mutest::Util, '.one' do
let(:first) { instance_double(Object) }
let(:array) { instance_double(Array, one?: true, first: first) }
it 'returns first element' do
expect(described_class.one(array)).to be(first)
end
it 'fails if the list is empty' do
expect { described_class.one([]) }
.to raise_error(described_class::SizeError)
.with_message('expected size to be exactly 1 but size was 0')
end
it 'fails if the list has more than one element' do
expect { described_class.one([1, 2]) }
.to raise_error(described_class::SizeError)
.with_message('expected size to be exactly 1 but size was 2')
end
end
Version data entries
9 entries across 9 versions & 1 rubygems