88 lines
1.7 KiB
Ruby
88 lines
1.7 KiB
Ruby
require 'spec_helper'
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describe Grid do
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let(:grid) { described_class.new(data) }
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let(:data) { [
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[:a, :b, :c],
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[:d, :e, :f],
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[:g, :h, :i],
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[:j, :k, :l]
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] }
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describe '#==' do
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let(:grid) { described_class.new(grid_lines) }
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let(:other) { described_class.new(other_lines) }
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subject { grid == other }
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context "when lines are equal" do
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let(:grid_lines) { [:a] }
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let(:other_lines) { [:a] }
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it { should be(true) }
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end
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context "when lines are different" do
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let(:grid_lines) { [:a] }
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let(:other_lines) { [:b] }
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it { should be(false) }
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end
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end
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describe '#width' do
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subject { grid.width }
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it { should eq(3) }
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end
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describe '#height' do
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subject { grid.height }
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it { should eq(4) }
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end
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describe '#cell' do
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it 'returns item at given x and y position' do
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expect(grid.cell(0, 0)).to eq(:a)
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expect(grid.cell(1, 2)).to eq(:h)
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expect(grid.cell(2, 3)).to eq(:l)
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end
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end
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describe '#crop' do
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subject { grid.crop(1, 0, 2, 3) }
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it { should eq(described_class.new([[:b, :c], [:e, :f], [:h, :i]])) }
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end
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describe '#diff' do
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let(:line_a) { [:a, :b, :c] }
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let(:line_b) { [:d, :e, :f] }
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let(:line_c) { [:g, :h, :i] }
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let(:grid) { described_class.new([line_a, line_b, line_c]) }
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let(:line_aa) { [:A, :b, :c] }
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let(:line_cc) { [:g, :H, :i] }
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let(:other) { described_class.new([line_aa, line_b, line_cc]) }
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subject { grid.diff(other) }
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it { should eq({ 0 => [:A, :b, :c], 2 => [:g, :H, :i] }) }
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end
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describe '#trailing_empty_lines' do
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let(:grid) { described_class.new(data) }
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let(:data) { [ [:a], [''], [] ] }
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subject { grid.trailing_empty_lines }
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it { should eq(2) }
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end
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end
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