字符串在 ScalaTest 匹配器中包含许多子字符串

Question

我需要检查一个字符串是否包含多个子字符串。以下作品

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

但它需要三行几乎重复的行。我正在寻找类似

的内容

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

但是这不起作用...当字符串肯定包含这些子字符串时断言就失败了。

如何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。

字符串在 ScalaTest 匹配器中包含许多子字符串

String includes many substrings in ScalaTest Matchers

string

scala

matcher

scalatest