org.hamcrest.MatcherAssert.scala Maven / Gradle / Ivy

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/*
 * Ported from https://github.com/hamcrest/JavaHamcrest/
 */
package org.hamcrest

object MatcherAssert {
  def assertThat[T](actual: T, matcher: Matcher[T]): Unit =
    assertThat("", actual, matcher)

  def assertThat[T](reason: String, actual: T, matcher: Matcher[T]): Unit = {
    val _actual = actual.asInstanceOf[AnyRef]
    if (!matcher.matches(_actual)) {
      val description = new StringDescription
      description
        .appendText(s"$reason\nExpected: ")
        .appendDescriptionOf(matcher)
        .appendText("\n     but: ")
      matcher.describeMismatch(_actual, description)

      throw new AssertionError(description.toString)
    }
  }

  def assertThat(reason: String, assertion: Boolean): Unit = {
    if (!assertion)
      throw new AssertionError(reason)
  }
}