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# frozen_string_literal: true
RSpec.describe TTY::Prompt, "#slider" do
subject(:prompt) { TTY::Prompt::Test.new }
let(:symbols) { TTY::Prompt::Symbols.symbols }
let(:left_right) { "#{symbols[:arrow_left]}/#{symbols[:arrow_right]}" }
def output_helper(prompt, choices, active, init: false, hint: false)
index = choices.index(active)
out = []
out << "\e[?25l" if init
out << prompt << " "
out << symbols[:line] * index
out << "\e[32m#{symbols[:bullet]}\e[0m"
out << symbols[:line] * (choices.size - index - 1)
out << " " << active
out << "\n\e[90m(#{hint})\e[0m" if hint
out << "\e[2K\e[1G"
out << "\e[1A\e[2K\e[1G" if hint
out.join
end
def exit_message(prompt, choice)
"#{prompt} \e[32m#{choice}\e[0m\n\e[?25h"
end
it "specifies ranges & step" do
choices = (32..54).step(2).to_a
prompt.input << "\r"
prompt.input.rewind
expect(prompt.slider("What size?", min: 32, max: 54, step: 2)).to eq(44)
expect(prompt.output.string).to eq([
output_helper("What size?", choices, 44, init: true,
hint: "Use #{left_right} arrow keys, press Enter to select"),
exit_message("What size?", 44)
].join)
end
it "specifies default value" do
choices = (32..54).step(2).to_a
prompt.input << "\r"
prompt.input.rewind
expect(prompt.slider("What size?", min: 32, max: 54, step: 2, default: 38)).to eq(38)
expect(prompt.output.string).to eq([
output_helper("What size?", choices, 38, init: true,
hint: "Use #{left_right} arrow keys, press Enter to select"),
exit_message("What size?", 38)
].join)
end
it "specifies range through DSL" do
prompt.input << "\r"
prompt.input.rewind
value = prompt.slider("What size?") do |range|
range.help "(Move with arrows)"
range.default 6
range.min 0
range.max 20
range.step 2
range.format "|:slider| %d%%"
end
expect(value).to eq(6)
expect(prompt.output.string).to eq([
"\e[?25lWhat size? ",
symbols[:pipe] + symbols[:line] * 3,
"\e[32m#{symbols[:bullet]}\e[0m",
"#{symbols[:line] * 7 + symbols[:pipe]} 6%",
"\n\e[90m(Move with arrows)\e[0m",
"\e[2K\e[1G\e[1A\e[2K\e[1G",
"What size? \e[32m6\e[0m\n\e[?25h"
].join)
end
it "formats via proc" do
prompt.input << "\r"
prompt.input.rewind
value = prompt.slider("What size?") do |range|
range.default 6
range.max 20
range.step 2
range.format ->(slider, value) { "|#{slider}| %d%%" % value }
end
expect(value).to eq(6)
expect(prompt.output.string).to eq([
"\e[?25lWhat size? ",
symbols[:pipe] + symbols[:line] * 3,
"\e[32m#{symbols[:bullet]}\e[0m",
"#{symbols[:line] * 7 + symbols[:pipe]} 6%",
"\n\e[90m(Use #{left_right} arrow keys, press Enter to select)\e[0m",
"\e[2K\e[1G\e[1A\e[2K\e[1G",
"What size? \e[32m6\e[0m\n\e[?25h"
].join)
end
it "changes display colors" do
prompt.input << "\r"
prompt.input.rewind
options = {active_color: :red, help_color: :cyan}
expect(prompt.slider("What size?", **options)).to eq(5)
expect(prompt.output.string).to eq([
"\e[?25lWhat size? ",
symbols[:line] * 5,
"\e[31m#{symbols[:bullet]}\e[0m",
"#{symbols[:line] * 5} 5",
"\n\e[36m(Use #{left_right} arrow keys, press Enter to select)\e[0m",
"\e[2K\e[1G\e[1A\e[2K\e[1G",
"What size? \e[31m5\e[0m\n\e[?25h"
].join)
end
it "doesn't allow values outside of range" do
choices = (0..10).to_a
prompt.input << "l\r"
prompt.input.rewind
prompt.on(:keypress) do |event|
if event.value = "l"
prompt.trigger(:keyright)
end
end
res = prompt.slider("What size?", min: 0, max: 10, step: 1, default: 10)
expect(res).to eq(10)
expect(prompt.output.string).to eq([
output_helper("What size?", choices, 10, init: true,
hint: "Use #{left_right} arrow keys, press Enter to select"),
output_helper("What size?", choices, 10),
exit_message("What size?", 10)
].join)
end
it "changes all display symbols" do
prompt = TTY::Prompt::Test.new(symbols: {
bullet: "x",
line: "_"
})
prompt.input << "\r"
prompt.input.rewind
expect(prompt.slider("What size?", min: 32, max: 54, step: 2)).to eq(44)
expect(prompt.output.string).to eq([
"\e[?25lWhat size? ",
"_" * 6,
"\e[32mx\e[0m",
"#{'_' * 5} 44",
"\n\e[90m(Use #{left_right} arrow keys, press Enter to select)\e[0m",
"\e[2K\e[1G\e[1A\e[2K\e[1G",
"What size? \e[32m44\e[0m\n\e[?25h"
].join)
end
it "changes all display symbols per instance" do
prompt.input << "\r"
prompt.input.rewind
answer = prompt.slider("What size?", min: 32, max: 54, step: 2) do |range|
range.symbols bullet: "x", line: "_"
end
expect(answer).to eq(44)
expect(prompt.output.string).to eq([
"\e[?25lWhat size? ",
"_" * 6,
"\e[32mx\e[0m",
"#{'_' * 5} 44",
"\n\e[90m(Use #{left_right} arrow keys, press Enter to select)\e[0m",
"\e[2K\e[1G\e[1A\e[2K\e[1G",
"What size? \e[32m44\e[0m\n\e[?25h"
].join)
end
it "sets quiet mode" do
choices = (32..54).step(2).to_a
prompt.input << "\r"
prompt.input.rewind
expect(prompt.slider("What size?", min: 32, max: 54, step: 2, quiet: true)).to eq(44)
expect(prompt.output.string).to eq([
output_helper("What size?", choices, 44, init: true,
hint: "Use #{left_right} arrow keys, press Enter to select"),
"\e[?25h"
].join)
end
it "specifies quiet mode through DSL" do
prompt.input << "\r"
prompt.input.rewind
value = prompt.slider("What size?") do |slider|
slider.quiet true
slider.default 6
slider.min 0
slider.max 20
slider.step 2
slider.format "|:slider| %d%%"
end
expect(value).to eq(6)
expect(prompt.output.string).to eq([
"\e[?25lWhat size? ",
symbols[:pipe] + symbols[:line] * 3,
"\e[32m#{symbols[:bullet]}\e[0m",
"#{symbols[:line] * 7 + symbols[:pipe]} 6%",
"\n\e[90m(Use #{left_right} arrow keys, press Enter to select)\e[0m",
"\e[2K\e[1G\e[1A\e[2K\e[1G",
"\e[?25h"
].join)
end
it "changes to always show help" do
choices = (0..10).to_a
prompt.on(:keypress) do |event|
prompt.trigger(:keyright) if event.value == "l"
end
prompt.input << "l" << "l" << "\r"
prompt.input.rewind
res = prompt.slider("What size?", min: 0, max: 10, step: 1,
default: 0, show_help: :always)
expect(res).to eq(2)
expected_output = [
output_helper("What size?", choices, 0, init: true,
hint: "Use #{left_right} arrow keys, press Enter to select"),
output_helper("What size?", choices, 1,
hint: "Use #{left_right} arrow keys, press Enter to select"),
output_helper("What size?", choices, 2,
hint: "Use #{left_right} arrow keys, press Enter to select"),
exit_message("What size?", 2)
].join
expect(prompt.output.string).to eq(expected_output)
end
it "changes to never show help" do
choices = (0..10).to_a
prompt.on(:keypress) do |event|
prompt.trigger(:keyright) if event.value == "l"
end
prompt.input << "l" << "l" << "\r"
prompt.input.rewind
res = prompt.slider("What size?", min: 0, max: 10, step: 1) do |range|
range.default 0
range.show_help :never
end
expect(res).to eq(2)
expected_output = [
output_helper("What size?", choices, 0, init: true),
output_helper("What size?", choices, 1),
output_helper("What size?", choices, 2),
exit_message("What size?", 2)
].join
expect(prompt.output.string).to eq(expected_output)
end
it "specifies choices instead of calculated range" do
choices = %w[a b c d e f g]
prompt.on(:keypress) do |event|
prompt.trigger(:keyright) if event.value == "l"
end
prompt.input << "l" << "l" << "\r"
prompt.input.rewind
res = prompt.slider("What letter?", choices) do |range|
range.default "b"
end
expect(res).to eq("d")
expected_output = [
output_helper("What letter?", choices, "b", init: true,
hint: "Use #{left_right} arrow keys, press Enter to select"),
output_helper("What letter?", choices, "c"),
output_helper("What letter?", choices, "d"),
exit_message("What letter?", "d")
].join
expect(prompt.output.string).to eq(expected_output)
end
it "specifies choices through DSL" do
choices = %w[a b c d e f g]
prompt.on(:keypress) do |event|
prompt.trigger(:keyleft) if event.value == "l"
end
prompt.input << "l" << "l" << "\r"
prompt.input.rewind
res = prompt.slider("What letter?") do |range|
range.default "c"
range.choices choices
end
expect(res).to eq("a")
expected_output = [
output_helper("What letter?", choices, "c", init: true,
hint: "Use #{left_right} arrow keys, press Enter to select"),
output_helper("What letter?", choices, "b"),
output_helper("What letter?", choices, "a"),
exit_message("What letter?", "a")
].join
expect(prompt.output.string).to eq(expected_output)
end
it "specifies choices through DSL" do
choices = %w[a b c d e f g]
prompt.on(:keypress) do |event|
prompt.trigger(:keyleft) if event.value == "l"
end
prompt.input << "l" << "l" << "\r"
prompt.input.rewind
res = prompt.slider("What letter?") do |range|
range.default "c"
range.choice "a"
range.choice "b"
range.choice "c"
range.choice "d"
range.choice "e"
range.choice "f"
range.choice "g"
end
expect(res).to eq("a")
expected_output = [
output_helper("What letter?", choices, "c", init: true,
hint: "Use #{left_right} arrow keys, press Enter to select"),
output_helper("What letter?", choices, "b"),
output_helper("What letter?", choices, "a"),
exit_message("What letter?", "a")
].join
expect(prompt.output.string).to eq(expected_output)
end
it "mixes choices as values and via DSL and keeps ordering" do
choices = %w[a b c d e f g]
prompt.on(:keypress) do |event|
prompt.trigger(:keyleft) if event.value == "l"
end
prompt.input << "l" << "l" << "\r"
prompt.input.rewind
res = prompt.slider("What letter?", %w[a b c d]) do |range|
range.default "c"
range.choice "e"
range.choice "f"
range.choice "g"
end
expect(res).to eq("a")
expected_output = [
output_helper("What letter?", choices, "c", init: true,
hint: "Use #{left_right} arrow keys, press Enter to select"),
output_helper("What letter?", choices, "b"),
output_helper("What letter?", choices, "a"),
exit_message("What letter?", "a")
].join
expect(prompt.output.string).to eq(expected_output)
end
it "sets default choice by name" do
prompt.input << "\r"
prompt.input.rewind
res = prompt.slider("What letter?") do |range|
range.default "a"
range.choice "a", 1
range.choice "b", 2
range.choice "c", 3
end
expect(res).to eq(1)
end
it "sets default choice by index number" do
prompt.input << "\r"
prompt.input.rewind
res = prompt.slider("What letter?") do |range|
range.default 3
range.choice "a", 1
range.choice "b", 2
range.choice "c", 3
end
expect(res).to eq(3)
end
it "sets choice value to proc and executes it" do
prompt.input << "\r"
prompt.input.rewind
res = prompt.slider("What letter?") do |range|
range.choice "a", 1
range.choice "b" do "NOT THE BEEEEEEEES!" end
range.choice "c", 3
end
expect(res).to eq("NOT THE BEEEEEEEES!")
end
end
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