@Test
public void findAll() throws Exception {

    // given
    Stock stock = new Stock();
    stock.setId(1L);
    stock.setName("Stock 1");
    stock.setPrice(new BigDecimal(1));

    List<Stock> stocks = Arrays.asList(stock);
    given(stockService.findAll()).willReturn(stocks);

    // when + then
    this.mockMvc.perform(get("/api/v1/stocks"))
            .andExpect(status().isOk())
            .andExpect(content().json("[{'id': 1,'name': 'Stock 1';'price': 1}]"));
}