func TestTransformEmptyArray(t *testing.T) {
ser := New().UseSnakeCase().Pick("ID", "FirstName")
users := []User{}
result := ser.MustTransformArray(users)
assert.NotNil(t, result)
assert.IsType(t, []map[string]interface{}{}, result)
assert.Len(t, result, 0)
}
func TestTransformArray(t *testing.T) {
otherUser := User{ID: 8, FirstName: "Me"}
ser := New().UseSnakeCase().Pick("ID", "FirstName")
cases := []interface{}{[]User{user, otherUser}, [2]User{user, otherUser}}
for _, c := range cases {
arr, err := ser.TransformArray(c)
assert.Nil(t, err)
assert.Len(t, arr, 2)
assert.Equal(t, arr[0]["id"], user.ID)
assert.Equal(t, arr[1]["id"], otherUser.ID)
assert.Equal(t, arr[0]["first_name"], user.FirstName)
}
_, err := ser.TransformArray(1)
assert.NotNil(t, err)
}