File: extensions_spec.rb

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# frozen_string_literal: true

RSpec.describe TTY::Which, "#extensions" do
  it "provides extensions" do
    exts = [".COM", ".EXE", ".BAT", ".CMD", ".VBS", ".RB", ".RBW"]
    exts_path = exts.join(::File::PATH_SEPARATOR)
    allow(ENV).to receive(:[]).with("PATHEXT").and_return(exts_path)

    expect(TTY::Which.extensions).to eq(exts)
  end

  it "finds no extensions" do
    allow(ENV).to receive(:[]).with("PATHEXT").and_return(nil)
    expect(TTY::Which.extensions).to eq([""])
  end
end