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# frozen_string_literal: true
RSpec.describe TTY::Command, ":printer" do
it "fails to find printer for nil" do
expect {
TTY::Command.new(printer: nil)
}.to raise_error(ArgumentError, /Unknown printer type ""/)
end
it "fails to find printer based on name" do
expect {
TTY::Command.new(printer: :unknown)
}.to raise_error(ArgumentError, /Unknown printer type "unknown"/)
end
it "detects null printer" do
cmd = TTY::Command.new(printer: :null)
expect(cmd.printer).to be_an_instance_of(TTY::Command::Printers::Null)
end
it "detects printer based on name" do
cmd = TTY::Command.new(printer: :progress)
expect(cmd.printer).to be_an_instance_of(TTY::Command::Printers::Progress)
end
it "uses printer based on class name" do
output = StringIO.new
printer = TTY::Command::Printers::Pretty
cmd = TTY::Command.new(output: output, printer: printer)
expect(cmd.printer).to be_an_instance_of(TTY::Command::Printers::Pretty)
end
it "uses printer based on instance" do
output = StringIO.new
printer = TTY::Command::Printers::Pretty.new(output)
cmd = TTY::Command.new(printer: printer)
expect(cmd.printer).to be_an_instance_of(TTY::Command::Printers::Pretty)
end
it "uses custom printer" do
stub_const("CustomPrinter", Class.new(TTY::Command::Printers::Abstract) do
def write(message)
output << message
end
end)
printer = CustomPrinter
cmd = TTY::Command.new(printer: printer)
expect(cmd.printer).to be_an_instance_of(CustomPrinter)
end
end
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