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require "helper"
require "neovim/host/cli"
begin
require "pty"
rescue LoadError
# Not available on Windows
end
module Neovim
class Host
RSpec.describe CLI do
let(:stdin) { StringIO.new }
let(:stdout) { StringIO.new }
let(:stderr) { StringIO.new }
specify "-V" do
expect do
CLI.run("/exe/nv-rb-host", ["-V"], stdin, stdout, stderr)
end.to raise_error(SystemExit) { |e| expect(e.status).to eq(0) }
expect(stderr.string).to be_empty
expect(stdout.string).to eq(Neovim::VERSION.to_s + "\n")
end
specify "-h" do
expect do
CLI.run("/exe/nv-rb-host", ["-h"], stdin, stdout, stderr)
end.to raise_error(SystemExit) { |e| expect(e.status).to eq(0) }
expect(stderr.string).to be_empty
expect(stdout.string).to eq("Usage: nv-rb-host [-hV] rplugin_path ...\n")
end
it "fails with invalid arguments" do
expect do
CLI.run("/exe/nv-rb-host", ["-x"], stdin, stdout, stderr)
end.to raise_error(SystemExit) { |e| expect(e.status).to eq(1) }
expect(stdout.string).to be_empty
expect(stderr.string).to eq("invalid option: -x\n")
end
it "fails when run interactively" do
if !defined?(PTY)
skip "Skipping without `pty` library."
end
PTY.open do |tty,|
expect do
CLI.run("/exe/nv-rb-host", ["plugin.rb"], tty, stdout, stderr)
end.to raise_error(SystemExit) { |e| expect(e.status).to eq(1) }
expect(stdout.string).to be_empty
expect(stderr.string).to eq("Can't run nv-rb-host interactively.\n")
end
end
it "starts a stdio host" do
nvim_r, host_w = IO.pipe
host_r, nvim_w = IO.pipe
nvim_u = MessagePack::Unpacker.new(nvim_r)
nvim_p = MessagePack::Packer.new(nvim_w)
Support.file_path("plugin").tap do |path|
File.write(path, "Neovim.plugin { |p| p.function('Foo') }")
thr = Thread.new do
CLI.run("/exe/nv-rb-host", [path], host_r, host_w, stderr)
end
begin
nvim_p.write([0, 1, :poll, []]).flush
expect(nvim_u.read[0..1]).to eq([2, "nvim_set_client_info"])
expect(nvim_u.read[0..2]).to eq([0, 2, "nvim_get_api_info"])
nvim_p.write([1, 2, nil, [10, {"functions" => {}, "types" => {}}]]).flush
expect(nvim_u.read).to eq([1, 1, nil, "ok"])
nvim_p.write([0, 3, :specs, [path]]).flush
*prefix, (payload, *) = nvim_u.read
expect(prefix).to eq([1, 3, nil])
expect(payload["name"]).to eq("Foo")
ensure
thr.kill.join
end
end
end
end
end
end
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