Question

我正在编写测试类来执行我的方法类（在方法类中有一个将要执行的sql语句）但{n}的let str (s:string) = pstring s let stringLiteral = manySatisfy (fun c -> c <> ':' && c <> '\r' && c <> '\n') let ws = many (pchar ' ') let keyValueSimple = stringLiteral .>>. (ws >>. str ":" >>. ws >>. stringLiteral) .>>. pchar '\n' |>> (fun (a,b) -> a) let lineValue = ws >>. stringLiteral .>>. (pchar '\n' .>>. ( pchar '\t')) |>> ( fun (a,b) -> a ) let lastValue = ws >>. stringLiteral .>>. (pchar '\n' .>> notFollowedBy ( pchar '\t') ) |>> ( fun (a,b) -> a ) let keyValueComplex = stringLiteral .>>. (ws >>. pchar ':') .>>. (many lineValue) .>>. lastValue |>> ( fun (((f),d),b) -> (f,f) ) let headers = many1 (keyValueComplex) let parse (fileName:string) = test headers "Return-Path: <ewrwe@werw.com>\n\twerwe\nDelivered-To: adfasdf@aasdfas.afa.com\n "持续时间为：NilClass`。

NoMethodError: undefined method

方法类如下：

class AverageTimeForFirstReferralTest < ActiveSupport::TestCase

  def setup
    user1 = FactoryGirl.create(:user)
    user2 = FactoryGirl.create(:user)
    user2.referrer_id = user1.id
    user2.created_at = 1.month.from_now
  end

  def test_creating_view_for_avg_time_for_first_ref
    AverageTimeForFirstReferral.update_view_command();
    assert_equal(1.month * 1.hour, AverageTimeForFirstReferral.first.duration)
  end
end

Answer 1

SQL语句不会在tableAi - unsigned bigint(20) - Auto increment index loginDetails - varchar(200) loginType - tinyint(4) (2- gmail, 3 facebook) studentid - unsigned bigint(20) tableAi | loginDetails | loginType | studentId 1 | abc@gmail.com | 2 | 333 2 | abc@facebook.com | 3 | 333 3 | xyz@facebook.com | 3 | 444 4 | xxx@gmail.com | 2 | 444 5 | test@gmail.com | 2 | 555 6 | abc@facebook.com | 3 | 555 7 | ac@facebook.com | 3 | 666 8 | ac@gmail.com | 2 | 777 9 | abc@facebook.com | 3 | 777模型表创建任何记录。这就是原因。

NoMethodError：nil的未定义方法`duration'：NilClass

1 个答案: