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RSpec.shared_examples :collection_each do
it 'common' do
@cache.send(method) { |k, v| fail }
expect(@cache).to eq @cache.send(method) {}
@cache[:a] = 1
h = {}
@cache.send(method) { |k, v| h[k] = v }
expect({:a => 1}).to eq h
@cache[:b] = 2
h = {}
@cache.send(method) { |k, v| h[k] = v }
expect({:a => 1, :b => 2}).to eq h
end
it 'pair iterator' do
@cache[:a] = 1
@cache[:b] = 2
i = 0
r = @cache.send(method) do |k, v|
if i == 0
i += 1
next
elsif i == 1
break :breaked
end
end
expect(:breaked).to eq r
end
it 'allows modification' do
@cache[:a] = 1
@cache[:b] = 1
@cache[:c] = 1
expect_size_change(1) do
@cache.send(method) do |k, v|
@cache[:z] = 1
end
end
end
context 'when no block is given' do
it 'returns an enumerator' do
@cache[:a] = 1
@cache[:b] = 2
expect(@cache.send(method)).to be_a Enumerator
end
it 'returns an object which is enumerable' do
@cache[:a] = 1
@cache[:b] = 2
expect(@cache.send(method).to_a).to contain_exactly([:a, 1], [:b, 2])
end
end
end
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