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|
require "helper"
module Neovim
RSpec.describe Buffer do
let(:client) { Support.persistent_client }
let(:buffer) { client.current.buffer }
before do
client.command("normal ione")
client.command("normal otwo")
client.command("normal gg")
end
describe "#lines" do
it "returns a LineRange" do
expect(buffer.lines).to be_a(LineRange)
end
end
describe "#lines=" do
it "updates the buffer's lines" do
expect do
buffer.lines = ["two", "three"]
end.to change { buffer.lines.to_a }.to(["two", "three"])
end
end
describe "#set_name", "#name" do
it "updates the buffer name" do
expect do
buffer.set_name("test_buf")
end.to change { buffer.name }.to(/test_buf$/)
end
end
describe "#number" do
it "returns the buffer number" do
expect do
client.command("new")
end.to change { client.get_current_buf.number }
end
end
describe "#count" do
it "returns the number of lines" do
expect do
buffer.append(0, "zero")
end.to change { buffer.count }.from(2).to(3)
end
end
describe "#length" do
it "returns the number of lines" do
expect do
buffer.append(0, "zero")
end.to change { buffer.length }.from(2).to(3)
end
end
describe "#[]" do
it "returns the line at the line number" do
expect(buffer[1]).to eq("one")
end
it "raises on out of bounds" do
expect do
buffer[-1]
end.to raise_error(/out of bounds/)
expect do
buffer[4]
end.to raise_error(/out of bounds/)
end
end
describe "#[]=" do
it "sets the line at the line number" do
expect do
buffer[1] = "first"
end.to change { buffer[1] }.from("one").to("first")
end
it "raises on out of bounds" do
expect do
buffer[4] = "line"
end.to raise_error(/out of bounds/)
expect do
buffer[-1] = "line"
end.to raise_error(/out of bounds/)
end
end
describe "#delete" do
it "deletes at the line number" do
expect do
buffer.delete(2)
end.to change { buffer.lines.to_a }.to(["one"])
end
it "raises on out of bounds" do
expect do
buffer.delete(-1)
end.to raise_error(/out of bounds/)
expect do
buffer.delete(4)
end.to raise_error(/out of bounds/)
end
end
describe "#append" do
it "appends after the line" do
expect do
buffer.append(2, "last")
end.to change { buffer.lines.to_a }.to(["one", "two", "last"])
end
it "inserts before the first line" do
expect do
buffer.append(0, "first")
end.to change { buffer.lines.to_a }.to(["first", "one", "two"])
end
it "allows newlines" do
expect do
buffer.append(0, "first\nsecond")
end.to change { buffer.lines.to_a }.to(["first", "second", "one", "two"])
end
it "doesn't move the cursor" do
expect do
buffer.append(0, "first")
end.not_to change { client.get_current_win.cursor }
end
it "raises on out of bounds" do
expect do
buffer.append(-1, "line")
end.to raise_error(/out of bounds/)
expect do
buffer.append(4, "line")
end.to raise_error(/out of bounds/)
end
end
describe "#line_number" do
it "returns the current line number" do
expect do
client.command("normal j")
end.to change { buffer.line_number }.from(1).to(2)
end
it "returns nil on inactive buffers" do
expect do
client.command("new")
end.to change { buffer.line_number }.from(1).to(nil)
end
end
describe "#line" do
before { buffer.lines = ["one", "two"] }
it "returns the current line" do
expect do
client.command("normal j")
end.to change { buffer.line }.from("one").to("two")
end
it "returns nil for inactive buffers" do
client.command("new")
expect(buffer.line).to eq(nil)
end
end
describe "#line=" do
it "updates the current line" do
expect do
buffer.line = "first"
end.to change { buffer.line }.to("first")
end
end
end
end
|
