字符串包括ScalaTest Matchers中的许多子字符串

Question

我需要检查一个字符串是否包含许多子字符串.以下作品

string should include ("seven")
string should include ("eight")
string should include ("nine")

但它需要三条几乎重复的线条.我正在寻找类似的东西

string should contain allOf ("seven", "eight", "nine")

但这不起作用...断言只是失败,而字符串肯定包含这些子串.

我怎样才能在一行中执行这样的断言？

Answer 1

试试这个:

string should (include("seven") and include("eight") and include("nine"))

Answer 2

您始终可以创建自定义匹配器:

it should "..." in {
  "str asd dsa ddsd" should includeAllOf ("r as", "asd", "dd")
}

def includeAllOf(expectedSubstrings: String*): Matcher[String] =
  new Matcher[String] {
    def apply(left: String): MatchResult =
      MatchResult(expectedSubstrings forall left.contains,
        s"""String "$left" did not include all of those substrings: ${expectedSubstrings.map(s => s""""$s"""").mkString(", ")}""",
        s"""String "$left" contained all of those substrings: ${expectedSubstrings.map(s => s""""$s"""").mkString(", ")}""")
  }

有关详细信息,请参阅http://www.scalatest.org/user_guide/using_matchers#usingCustomMatchers.