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require "helper"
module Neovim
RSpec.describe LineRange do
let(:client) { Support.persistent_client }
let(:buffer) { client.current.buffer }
let(:line_range) { LineRange.new(buffer) }
before do
buffer.set_lines(0, -1, true, ["1", "2", "3", "4"])
end
describe "#each" do
it "yields each line" do
yielded = []
line_range.each { |line| yielded << line }
expect(yielded).to eq(["1", "2", "3", "4"])
end
it "yields a large number of lines" do
lines = Array.new(6000, "x")
buffer.set_lines(0, -1, true, lines)
yielded = []
line_range.each { |line| yielded << line }
expect(yielded).to eq(lines)
end
end
describe "#to_a" do
it "returns lines as an array" do
expect(line_range.to_a).to eq(["1", "2", "3", "4"])
end
it "returns a large number of lines as an array" do
lines = Array.new(6000, "x")
buffer.set_lines(0, -1, true, lines)
expect(line_range.to_a).to eq(lines)
end
end
describe "#==" do
it "compares line contents" do
client.command("new")
buffer2 = client.current.buffer
expect(buffer2.lines == buffer.lines).to eq(false)
buffer2.set_lines(0, -1, true, ["1", "2", "3", "4"])
expect(buffer2.lines == buffer.lines).to eq(true)
end
end
describe "#[]" do
it "accepts a single index" do
expect(line_range[1]).to eq("2")
expect(line_range[-1]).to eq("4")
expect(line_range[-2]).to eq("3")
end
it "accepts an index and length" do
expect(line_range[0, 2]).to eq(["1", "2"])
expect(line_range[-2, 2]).to eq(["3", "4"])
expect(line_range[-2, 3]).to eq(["3", "4"])
expect do
line_range[2, 3]
end.to raise_error(/out of bounds/)
end
it "accepts a range" do
expect(line_range[0..1]).to eq(["1", "2"])
expect(line_range[0...1]).to eq(["1"])
expect(line_range[0..-1]).to eq(["1", "2", "3", "4"])
expect(line_range[0..-2]).to eq(["1", "2", "3"])
expect(line_range[-3..-2]).to eq(["2", "3"])
expect(line_range[0..-5]).to eq([])
expect(line_range[0...-4]).to eq([])
expect(line_range[-2..-3]).to eq([])
expect do
line_range[2..4]
end.to raise_error(/out of bounds/)
end
end
describe "#[]=" do
it "accepts a single index" do
expect(line_range[0] = "foo").to eq("foo")
expect(line_range.to_a).to eq(["foo", "2", "3", "4"])
expect(line_range[-1] = "bar").to eq("bar")
expect(line_range.to_a).to eq(["foo", "2", "3", "bar"])
expect do
line_range[-5] = "foo"
end.to raise_error(/out of bounds/)
end
it "accepts an index and length" do
expect(line_range[0, 2] = ["foo"]).to eq(["foo"])
expect(line_range.to_a).to eq(["foo", "3", "4"])
expect(line_range[-2, 2] = ["bar"]).to eq(["bar"])
expect(line_range.to_a).to eq(["foo", "bar"])
expect(line_range[0, 2] = "baz").to eq("baz")
expect(line_range.to_a).to eq(["baz"])
expect do
line_range[0, 5] = "foo"
end.to raise_error(/out of bounds/)
end
it "accepts a range" do
expect(line_range[0..1] = ["foo"]).to eq(["foo"])
expect(line_range.to_a).to eq(["foo", "3", "4"])
expect(line_range[0...1] = ["bar"]).to eq(["bar"])
expect(line_range.to_a).to eq(["bar", "3", "4"])
expect(line_range[0..-2] = ["baz"]).to eq(["baz"])
expect(line_range.to_a).to eq(["baz", "4"])
expect(line_range[0...2] = "qux").to eq("qux")
expect(line_range.to_a).to eq(["qux"])
end
end
describe "#replace" do
it "replaces all lines" do
line_range.replace(["4", "5"])
expect(line_range.to_a).to eq(["4", "5"])
end
end
describe "#delete" do
it "deletes the line at the given index" do
expect do
line_range.delete(0)
end.to change { line_range.to_a }.to(["2", "3", "4"])
expect do
line_range.delete(-1)
end.to change { line_range.to_a }.to(["2", "3"])
expect do
line_range.delete(-2)
end.to change { line_range.to_a }.to(["3"])
end
it "returns the line deleted" do
expect(line_range.delete(0)).to eq("1")
expect(line_range.delete(-1)).to eq("4")
end
it "returns nil if provided a non-integer" do
expect do
expect(line_range.delete(:foo)).to eq(nil)
end.not_to change { line_range.to_a }
end
end
end
end
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