98 lines
2.6 KiB
Ruby
98 lines
2.6 KiB
Ruby
require "utils/formatter"
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require "utils/tty"
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describe Formatter do
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describe "::columns" do
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subject { described_class.columns(input) }
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let(:input) {
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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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}
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it "doesn't output columns if $stdout is not a TTY." do
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allow_any_instance_of(IO).to receive(:tty?).and_return(false)
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allow(Tty).to receive(:width).and_return(10)
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expect(subject).to eq(
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"aa\n" \
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"bbb\n" \
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"ccc\n" \
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"dd\n",
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)
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end
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describe "$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(subject).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(subject).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 "::pluralize" do
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it "pluralizes words" do
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expect(described_class.pluralize(0, "cask")).to eq("0 casks")
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expect(described_class.pluralize(1, "cask")).to eq("1 cask")
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expect(described_class.pluralize(2, "cask")).to eq("2 casks")
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end
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it "allows specifying custom plural forms" do
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expect(described_class.pluralize(1, "child", "children")).to eq("1 child")
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expect(described_class.pluralize(2, "child", "children")).to eq("2 children")
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end
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it "has plural forms of Homebrew jargon" do
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expect(described_class.pluralize(1, "formula")).to eq("1 formula")
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expect(described_class.pluralize(2, "formula")).to eq("2 formulae")
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end
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it "pluralizes the last word of a string" do
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expect(described_class.pluralize(1, "new formula")).to eq("1 new formula")
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expect(described_class.pluralize(2, "new formula")).to eq("2 new formulae")
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end
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end
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describe "::comma_and" do
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it "returns nil if given no arguments" do
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expect(described_class.comma_and).to be nil
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end
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it "returns the input as string if there is only one argument" do
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expect(described_class.comma_and(1)).to eq("1")
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end
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it "concatenates two items with “and”" do
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expect(described_class.comma_and(1, 2)).to eq("1 and 2")
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end
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it "concatenates all items with a comma and appends the last with “and”" do
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expect(described_class.comma_and(1, 2, 3)).to eq("1, 2 and 3")
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end
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end
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end
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