76 lines
2.1 KiB
Ruby
76 lines
2.1 KiB
Ruby
# Copyright 2015 Google Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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require 'spec_helper'
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require 'google/apis/core/composite_io'
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RSpec.describe Google::Apis::Core::CompositeIO do
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shared_examples 'should act like IO' do
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it 'should read from all IOs' do
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expect(io.read).to eq 'Hello Cruel World'
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end
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it 'should respond to size' do
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expect(io.size).to eq 17
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end
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it 'should respond to pos=' do
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io.pos = 6
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expect(io.read).to eq('Cruel World')
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end
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it 'should reject negative positions' do
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expect { io.pos = -1 }.to raise_error(ArgumentError)
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end
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it 'should return nil if position beyond size' do
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io.pos = 20
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expect(io.read).to be_nil
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end
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it 'should be readable after rewinding' do
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expect(io.read).to eq 'Hello Cruel World'
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expect(io.read).to be_nil
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io.rewind
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expect(io.read).to eq 'Hello Cruel World'
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end
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end
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context 'with StringIOs' do
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let(:io) do
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Google::Apis::Core::CompositeIO.new(
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StringIO.new("Hello "),
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StringIO.new("Cruel "),
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StringIO.new("World"))
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end
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include_examples 'should act like IO'
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end
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context 'with Files' do
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let(:io) do
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files = []
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dir = Dir.mktmpdir
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['Hello ', 'Cruel ', 'World'].each_with_index do |text, index|
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name = File.join(dir, "f#{index}")
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File.open(name, 'w') { |f| f.write(text) }
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files << name
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end
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Google::Apis::Core::CompositeIO.new(files.map { |name| File.open(name, 'r') })
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end
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include_examples 'should act like IO'
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end
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end |