core/auth/ui/api_test.go

package main

import (
	"net/http"
	"net/http/httptest"
	"strings"
	"testing"
)

func TestIdentityCreateSharedValidationResponseRemainsCompatible(t *testing.T) {
	server := NewAPIServer(0, "http://kratos.invalid")
	request := httptest.NewRequest(http.MethodPost, "/identities", strings.NewReader(`{"username":"x","password":"short"}`))
	recorder := httptest.NewRecorder()
	server.identityCreate(recorder, request)

	const expected = `{"errors":[{"field":"username","message":"Username must be at least 3 characters long."},{"field":"password","message":"Password must be at least 20 characters long."},{"field":"password","message":"Password must contain at least one digit, lower\u0026upper case and special characters"}]}
`
	if recorder.Code != http.StatusBadRequest {
		t.Fatalf("status = %d, want 400", recorder.Code)
	}
	if got := recorder.Header().Get("Content-Type"); got != "application/json" {
		t.Fatalf("content type = %q", got)
	}
	if got := recorder.Body.String(); got != expected {
		t.Fatalf("body = %q, want byte-compatible %q", got, expected)
	}
}