"code": "gm2m_map_1", "name": "GMap1",
	}); err != nil {
		t.Fatalf("append map: %v", err)
	}
	AssertAssociationCount(t, user, "Languages", 1, "after append 1 map (generic file)")

	// Append more maps individually
	if err := DB.Model(&user).Association("Languages").Append(map[string]interface{}{"code": "gm2m_map_2", "name": "GMap2"}); err != nil {
		t.Fatalf("append map 2: %v", err)

	for _, l := range langs {
		codeSet[l.Code] = true
	}
	for _, c := range []string{"am2m_map_1", "am2m_map_2", "am2m_map_3"} {
		if !codeSet[c] {
			t.Fatalf("expected language code %s present", c)
		}
	}
}

func TestAssociationMany2ManyReplaceMap(t *testing.T) {
	user := *GetUser("assoc_m2m_replace_map", Config{})
	if err := DB.Create(&user).Error; err != nil {
		t.Fatalf("create user: %v", err)
	}