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# frozen_string_literal: true
RSpec.describe TTY::Color::Mode, "detecting mode" do
it "isn't terminal" do
allow(TTY::Color).to receive(:tty?).and_return(false)
mode = described_class.new({})
expect(mode.mode).to eq(0)
end
it "cannot find from term, tput " do
allow(TTY::Color).to receive(:tty?).and_return(true)
mode = described_class.new({})
allow(mode).to receive(:from_term).and_return(TTY::Color::NoValue)
allow(mode).to receive(:from_tput).and_return(TTY::Color::NoValue)
expect(mode.mode).to eq(8)
expect(mode).to have_received(:from_term).ordered
expect(mode).to have_received(:from_tput).ordered
end
it "detects color mode" do
allow(TTY::Color).to receive(:tty?).and_return(true)
mode = described_class.new("TERM" => "xterm-256color")
expect(mode.mode).to eq(256)
end
context "#from_term" do
{
"xterm+direct" => 16_777_216,
"vscode-direct" => 16_777_216,
"+24bit" => 16_777_216,
"xterm-256color" => 256,
"alacritty" => 256,
"mintty" => 256,
"ms-terminal" => 256,
"nsterm" => 256,
"nsterm-build400" => 256,
"terminator" => 256,
"vscode" => 256,
"iTerm.app" => 256,
"iTerm 2.app" => 256,
"amiga-8bit" => 256,
"+8bit" => 256,
"wy370-105k" => 64,
"d430-unix-ccc" => 52,
"d430c-unix-s-ccc" => 52,
"+52color" => 52,
"nsterm-bce" => 16,
"d430c-dg" => 16,
"d430-unix-w" => 16,
"konsole-vt100" => 8,
"xnuppc+basic" => 8,
"dummy" => 0
}.each do |term_name, number|
it "infers #{term_name.inspect} to have #{number} colors" do
mode = described_class.new("TERM" => term_name)
expect(mode.from_term).to eq(number)
end
end
it "doesn't match any term variable" do
mode = described_class.new({})
expect(mode.from_term).to eq(TTY::Color::NoValue)
end
end
context "#from_tput" do
it "fails to find tput utility" do
mode = described_class.new({})
allow(TTY::Color).to receive(:command?).with("tput colors").and_return(nil)
expect(mode.from_tput).to eq(TTY::Color::NoValue)
end
it "runs tput and detects 8 colors" do
allow(TTY::Color).to receive(:command?).with("tput colors").and_return(true)
mode = described_class.new({})
allow(mode).to receive(:`).and_return("8")
expect(mode.from_tput).to eq(8)
end
it "runs tput but finds less than 8 colors" do
allow(TTY::Color).to receive(:command?).with("tput colors").and_return(true)
mode = described_class.new({})
allow(mode).to receive(:`).and_return("2")
expect(mode.from_tput).to eq(TTY::Color::NoValue)
end
it "raises error when running tput" do
allow(TTY::Color).to receive(:command?).with("tput colors").and_return(true)
mode = described_class.new({})
allow(mode).to receive(:`).and_raise(Errno::ENOENT)
expect(mode.from_tput).to eq(TTY::Color::NoValue)
end
end
end
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