23 lines
600 B
Ruby
23 lines
600 B
Ruby
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require 'spec_helper'
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describe 'Just()' do
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include ConvertableNull::Conversions
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specify 'passes non-nullish values through' do
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expect(Just(false)).to be(false)
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str = 'hello'
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expect(Just(str)).to be(str)
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end
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specify 'rejects nullish values' do
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expect { Just(nil) }.to raise_error(ArgumentError)
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expect { Just('') }.to raise_error(ArgumentError)
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expect { Just(ConvertableNull.get) }.to raise_error(ArgumentError)
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end
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it 'also works with blocks' do
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expect { Just { nil }.class }.to raise_error(ArgumentError)
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expect(Just { 'foo' }).to eq('foo')
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end
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end
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