expose finder for tests

[pravinchandar]

Describe the bug

The example here could be wrong?

I am not sure if its possible to test Find() without exposing the finder that is intialised during UseMockedTerminalV2()

go-fuzzyfinder/mock.go

Lines 265 to 270 in 8b4601d

	// UseMockedTerminalV2 switches the terminal, which is used from
	// this package to a mocked one.
	func UseMockedTerminalV2() *TerminalMock {
	f := newFinder()
	return f.UseMockedTerminalV2()
	}

I notice in all find tests in the code base that finder is exposed with the helper func.

go-fuzzyfinder/helper_test.go

Lines 9 to 21 in 8b4601d

	func NewWithMockedTerminal() (*finder, *TerminalMock) {
	eventsChan := make(chan tcell.Event, 10)
	f := New()
	f.termEventsChan = eventsChan
	m := f.UseMockedTerminalV2()
	go m.ChannelEvents(eventsChan, nil)
	w, h := 60, 10 // A normally value.
	m.SetSize(w, h)
	return f, m
	}

To reproduce

Expected behavior

Screenshots

Environment

• OS:
• Terminal:
• go-fuzzyfinder version:

Additional context