How to add query parameters to mockup in Spring Boot 2.0 with MockMvcRequestBuilders - spring-boot

Question

I'm trying to do a simple test class using MockMvc. But I'm stuck in a really simple thing (but the docs doesn't help).
My basic code is
#SpringBootTest
#AutoConfigureMockMvc
class RecommendationServiceApplicationTests {
private static final Logger LOG = LoggerFactory.getLogger(RecommendationServiceApplicationTests.class);
private final String url = "/recommendation?productId=%d";
static final int PRODUCT_OK = 1;
static final int PRODUCT_KO = 0;
static final int PRODUCT_NOT_FOUND = 113;
#Autowired
private MockMvc mockMvc;
// Check OK response
#Test
public void getRecommendationsOK() throws Exception {
MockHttpServletRequestBuilder requestBuilder;
MvcResult result;
String contentResponse;
Recommendation[] recommendations;
requestBuilder=
MockMvcRequestBuilders
.get("/recommendation?productId=1")
.accept(MediaType.APPLICATION_JSON);
result = this.mockMvc
.perform(requestBuilder)
.andDo(MockMvcResultHandlers.print())
.andExpect(MockMvcResultMatchers.status().isOk())
.andReturn();
}
}
In this way, the code runs fine, but when I try to use a parameterized query, I cannot find the way
I have tried (with no success)
.get("/recommendation?productId=",PRODUCT_OK)
.get("/recommendation?productId={}",PRODUCT_OK)
.get("/recommendation?productId=%d",PRODUCT_OK)
.get("/recommendation?productId=[]",PRODUCT_OK)
.get("/recommendation?productId=PRODUCT_OK",PRODUCT_OK)
Thanks in advance

Answer 1

Apart from .param(), you can also use the .get(String urlTemplate, Object... uriVars) that you already tried. You were pretty close to the solution:
.get("/recommendation?productId={product}",PRODUCT_OK)
You can also expand multiple URI variables
.get("/recommendation?productId={product}&sort={var}",PRODUCT_OK, "desc");

Answer 2

Use .param()
MockMvcRequestBuilders
.get("/recommendation")
.param("product", "1")
.accept(MediaType.APPLICATION_JSON);