114 lines
3.8 KiB
Ruby
114 lines
3.8 KiB
Ruby
# frozen_string_literal: true
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require "utils/formatter"
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require "utils/tty"
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RSpec.describe Formatter do
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describe "::columns" do
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subject(:columns) { described_class.columns(input) }
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let(:input) do
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%w[
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aa
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bbb
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ccc
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dd
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]
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end
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it "doesn't output columns if $stdout is not a TTY." do
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allow_any_instance_of(IO).to receive(:tty?).and_return(false)
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allow(Tty).to receive(:width).and_return(10)
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expect(columns).to eq(
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"aa\n" \
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"bbb\n" \
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"ccc\n" \
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"dd\n",
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)
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end
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describe "$stdout is a TTY" do
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it "outputs columns" do
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allow_any_instance_of(IO).to receive(:tty?).and_return(true)
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allow(Tty).to receive(:width).and_return(10)
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expect(columns).to eq(
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"aa ccc\n" \
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"bbb dd\n",
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)
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end
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it "outputs only one line if everything fits" do
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allow_any_instance_of(IO).to receive(:tty?).and_return(true)
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allow(Tty).to receive(:width).and_return(20)
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expect(columns).to eq(
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"aa bbb ccc dd\n",
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)
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end
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end
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describe "with empty input" do
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let(:input) { [] }
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it { is_expected.to eq("\n") }
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end
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end
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describe "::format_help_text" do
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it "indents subcommand descriptions" do
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# The following example help text was carefully crafted to test all five regular expressions in the method.
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# Also, the text is designed in such a way such that options (e.g. `--foo`) would be wrapped to the
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# beginning of new lines if normal wrapping was used. This is to test that the method works as expected
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# and doesn't allow options to start new lines. Be careful when changing the text so these checks aren't lost.
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text = <<~HELP
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Usage: brew command [<options>] <formula>...
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This is a test command.
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Single line breaks are removed, but the entire line is still wrapped at the correct point.
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Paragraphs are preserved but
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are also wrapped at the right point. Here's some more filler text to get this line to be long enough.
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Options, for example: --foo, are never placed at the start of a line.
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`brew command` [`state`]:
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Display the current state of the command.
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`brew command` (`on`|`off`):
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Turn the command on or off respectively.
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-f, --foo This line is wrapped with a hanging indent. --test. The --test option isn't at the start of a line.
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-b, --bar The following option is not left on its own: --baz
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-h, --help Show this message.
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HELP
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expected = <<~HELP
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Usage: brew command [<options>] <formula>...
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This is a test command. Single line breaks are removed, but the entire line is
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still wrapped at the correct point.
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Paragraphs are preserved but are also wrapped at the right point. Here's some
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more filler text to get this line to be long enough. Options, for
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example: --foo, are never placed at the start of a line.
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`brew command` [`state`]:
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Display the current state of the command.
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`brew command` (`on`|`off`):
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Turn the command on or off respectively.
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-f, --foo This line is wrapped with a hanging
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indent. --test. The --test option isn't at
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the start of a line.
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-b, --bar The following option is not left on its
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own: --baz
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-h, --help Show this message.
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HELP
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expect(described_class.format_help_text(text, width: 80)).to eq expected
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end
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end
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end
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