Function benchEdit

internal/buffer/buffer_test.go:152–203

(testingB *testing.B, nLines, nCursors int)

}

func benchEdit(testingB *testing.B, nLines, nCursors int) {
	rand.Seed(int64(nLines + nCursors))

	b := NewBufferFromString(randomText(nLines), "", BTDefault)

	regionSize := nLines / nCursors

	operations := make([]operation, nCursors)
	for i := range operations {
		startLine := (i * regionSize) + rand.Intn(regionSize-5)
		startColumn := rand.Intn(util.CharacterCountInString(b.Line(startLine)) + 1)
		endLine := startLine + 1 + rand.Intn(5)
		endColumn := rand.Intn(util.CharacterCountInString(b.Line(endLine)) + 1)

		operations[i] = operation{
			start: Loc{startColumn, startLine},
			end:   Loc{endColumn, endLine},
			text:  []string{randomText(2 + rand.Intn(4))},
		}
	}

	testingB.ResetTimer()

	for i := 0; i < testingB.N; i++ {
		b.SetCursors([]*Cursor{})

		var cursors []*Cursor

		for _, op := range operations {
			cursor := NewCursor(b, op.start)
			cursor.SetSelectionStart(op.start)
			cursor.SetSelectionEnd(op.end)
			b.AddCursor(cursor)
			cursors = append(cursors, cursor)
		}

		for j, op := range operations {
			cursor := cursors[j]
			b.SetCurCursor(cursor.Num)
			cursor.DeleteSelection()
			b.Insert(cursor.Loc, op.text[0])
		}

		for b.UndoStack.Peek() != nil {
			b.UndoOneEvent()
		}
	}

	testingB.StopTimer()

	b.Close()
}

func BenchmarkCreateAndClose10Lines(b *testing.B) {
	benchCreateAndClose(b, 10)