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71 lines
2.0 KiB
Ruby
71 lines
2.0 KiB
Ruby
require 'spec_helper'
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describe Snapshot do
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describe '#==' do
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let(:snapshot) { Snapshot.new([:foo]) }
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subject { snapshot == other }
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context "when the other has the same lines" do
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let(:other) { Snapshot.new([:foo]) }
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it { should be(true) }
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end
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context "when the other has a different lines" do
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let(:other) { Snapshot.new([:foo, :bar]) }
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it { should be(false) }
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end
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end
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describe '#crop' do
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let(:snapshot) { Snapshot.new(lines) }
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let(:lines) { [line_1, line_2, line_3] }
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let(:line_1) { double('line_1', :crop => cropped_line_1) }
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let(:line_2) { double('line_2', :crop => cropped_line_2) }
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let(:line_3) { double('line_3', :crop => cropped_line_3) }
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let(:cropped_line_1) { double('cropped_line_1') }
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let(:cropped_line_2) { double('cropped_line_2') }
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let(:cropped_line_3) { double('cropped_line_3') }
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let(:width) { 3 }
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subject { snapshot.crop(width, height) }
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context "when height is lower than lines count" do
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let(:height) { 2 }
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it 'crops the last "height" lines' do
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subject
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expect(line_1).to_not have_received(:crop)
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expect(line_2).to have_received(:crop).with(3)
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expect(line_3).to have_received(:crop).with(3)
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end
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it 'returns a new Snapshot with last 2 lines cropped' do
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expect(subject).to eq(Snapshot.new([cropped_line_2, cropped_line_3]))
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end
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end
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context "when height is equal to lines count" do
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let(:height) { 3 }
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it 'returns a new Snapshot with all lines cropped' do
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expect(subject).to eq(Snapshot.new([cropped_line_1, cropped_line_2,
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cropped_line_3]))
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end
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end
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context "when height is greater than lines count" do
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let(:height) { 4 }
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it 'returns a new Snapshot with all lines cropped' do
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expect(subject).to eq(Snapshot.new([cropped_line_1, cropped_line_2,
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cropped_line_3]))
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end
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end
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end
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end
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