# encoding: utf-8

RSpec.describe TTY::Editor, '#command' do
  it 'specifies desired editor' do
    editor = TTY::Editor.new(fixtures_path('hello.txt'))

    allow(TTY::Editor).to receive(:available).and_return(['vim'])
    allow(TTY::Which).to receive(:which).with('vim').and_return('/usr/bin/vim')

    expect(editor.command).to eq('/usr/bin/vim')
  end

  it "doesn't find any available editor" do
    editor = TTY::Editor.new(fixtures_path('hello.txt'))
    allow(TTY::Editor).to receive(:available).and_return([])

    expect {
      editor.command
    }.to raise_error(TTY::Editor::EditorNotFoundError,
      /Could not find editor to use. Please specify \$VISUAL or \$EDITOR/)
  end

  it 'finds only one editor' do
    editor = TTY::Editor.new(fixtures_path('hello.txt'))

    allow(TTY::Editor).to receive(:available).and_return(['vim'])
    allow(TTY::Which).to receive(:which).with('vim').and_return('/usr/bin/vim')

    expect(editor.command).to eq('/usr/bin/vim')
  end

  it "finds more than one editor" do
    editor = TTY::Editor.new(fixtures_path('hello.txt'))

    prompt = double(:prompt, enum_select: 'vim')

    allow(TTY::Editor).to receive(:available).and_return(['vim', 'emacs'])
    allow(TTY::Which).to receive(:which).with('vim').and_return('/usr/bin/vim')
    allow(TTY::Prompt).to receive(:new).and_return(prompt)

    expect(editor.command).to eq('/usr/bin/vim')
  end

  it "caches editor name" do
    editor = TTY::Editor.new(fixtures_path('hello.txt'))

    allow(TTY::Editor).to receive(:available).and_return(['vim'])
    allow(TTY::Which).to receive(:which).with('vim').and_return('/usr/bin/vim')

    editor.command
    editor.command

    expect(TTY::Editor).to have_received(:available).once
  end
end