64 lines
1.7 KiB
Ruby
64 lines
1.7 KiB
Ruby
# Copyright (c) HashiCorp, Inc.
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# SPDX-License-Identifier: BUSL-1.1
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require File.expand_path("../../../base", __FILE__)
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require "vagrant/util/line_buffer"
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describe Vagrant::Util::LineBuffer do
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it "should raise error when no callback is provided" do
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expect { subject }.to raise_error(ArgumentError)
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end
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context "with block defined" do
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let(:block) { proc{ |l| output << l } }
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let(:output) { [] }
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let(:partial) { "this is part of a line. " }
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let(:line) { "this is a full line\n" }
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subject { described_class.new(&block) }
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it "should not raise an error when callback is provided" do
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expect { subject }.not_to raise_error
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end
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describe "#<<" do
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it "should add line to the output" do
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subject << line
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expect(output).to eq([line.rstrip])
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end
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it "should not add partial line to output" do
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subject << partial
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expect(output).to be_empty
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end
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it "should add partial line to output once full line is given" do
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subject << partial
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expect(output).to be_empty
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subject << line
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expect(output).to eq([partial + line.rstrip])
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end
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it "should add line once it has surpassed max line length" do
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overflow = "a" * (described_class.const_get(:MAX_LINE_LENGTH) + 1)
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subject << overflow
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expect(output).to eq([overflow])
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end
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end
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describe "#close" do
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it "should output any partial data left in buffer" do
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subject << partial
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expect(output).to be_empty
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subject.close
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expect(output).to eq([partial])
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end
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it "should not be writable after closing" do
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subject.close
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expect { subject << partial }.to raise_error(FrozenError)
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end
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end
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end
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end
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