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# frozen_string_literal: true
RSpec.describe TTY::Reader, "#read_keypress" do
let(:input) { StringIO.new }
let(:out) { StringIO.new }
let(:env) { { "TTY_TEST" => true } }
it "reads single key press" do
reader = described_class.new(input: input, output: out, env: env)
input << "\e[Aaaaaaa\n"
input.rewind
answer = reader.read_keypress
expect(answer).to eq("\e[A")
end
it "reads multibyte key press" do
reader = described_class.new(input: input, output: out, env: env)
input << "ㄱ"
input.rewind
answer = reader.read_keypress
expect(answer).to eq("ㄱ")
end
context "when Ctrl+C pressed" do
it "defaults to raising InputInterrupt" do
reader = described_class.new(input: input, output: out, env: env)
input << "\x03"
input.rewind
expect {
reader.read_keypress
}.to raise_error(TTY::Reader::InputInterrupt)
end
it "sends interrupt signal when :signal option is chosen" do
reader = described_class.new(
input: input,
output: out,
interrupt: :signal,
env: env)
input << "\x03"
input.rewind
allow(Process).to receive(:pid).and_return(666)
allow(Process).to receive(:kill)
expect(Process).to receive(:kill).with("SIGINT", 666)
reader.read_keypress
end
it "exits with 130 code when :exit option is chosen" do
reader = described_class.new(
input: input,
output: out,
interrupt: :exit,
env: env)
input << "\x03"
input.rewind
expect {
reader.read_keypress
}.to raise_error(SystemExit)
end
it "evaluates custom handler when proc object is provided" do
handler = proc { raise ArgumentError }
reader = described_class.new(
input: input,
output: out,
interrupt: handler,
env: env)
input << "\x03"
input.rewind
expect {
reader.read_keypress
}.to raise_error(ArgumentError)
end
it "skips handler when handler is nil" do
reader = described_class.new(
input: input,
output: out,
interrupt: :noop,
env: env)
input << "\x03"
input.rewind
expect(reader.read_keypress).to eq("\x03")
end
end
end
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