When i’m trying to test simple controller call

mockMvc.perform(post("/api/v2/test-flow/{key}", key)
                .contentType(MediaType.APPLICATION_OCTET_STREAM)
                .content(objectMapper.writeValueAsString(body)))
                .andExpect(status().isOk())

i’m getting following exception

Caused by: com.amazonaws.services.simplesystemsmanagement.model.AWSSimpleSystemsManagementException: The security token included in the request is invalid.

How to exclude aws (i’m not sure from where it is appeared) from the call and just test my controller method?