Inside
Inspects inside the passed value using the passed partial function.
Inspects inside the passed value using the passed partial function.
The inside method checks to see whether the partial function passed as the second curried
parameter is defined at the value passed as the first parameter, and if so, passes that value to the
partial function.
If the partial function is not defined at the passed value, inside will throw a
TestFailedException with a detail message describing the problem. Otherwise, if the
partial function returns normally, inside will return normally. If the partial function
completes abruptly with an exception that mixes in ModifiableMessage (such as
TestFailedException), inside will append the value's toString of
to the exception's detail message, and rethrow it. If the exception thrown by the partial function does not mix
in ModifiableMessage, inside completes abruptly with that same exception.
the value inside of which to inspect
the partial function to use to inspect inside the passed value
if the passed partial function is not defined at the passed value
Companion object that facilitates the importing of the
insideconstruct as an alternative to mixing it in. One use case is to import theinsideconstruct so you can use it in the Scala interpreter:$ scala -cp scalatest-1.8.jar Welcome to Scala version 2.9.1.final (Java HotSpot(TM) 64-Bit Server VM, Java 1.6.0_29). Type in expressions to have them evaluated. Type :help for more information. scala> import org.scalatest._ import org.scalatest._ scala> import matchers.ShouldMatchers._ import matchers.ShouldMatchers._ scala> import Inside._ import Inside._ scala> inside (List(1, 2, 3)) { case List(x, y, z) => | y should equal (2) | } scala> inside (List(1, 2, 3)) { case List(x, y, z) => | x should equal (2) | } org.scalatest.TestFailedException: 1 did not equal 2, inside List(1, 2, 3) at org.scalatest.matchers.Matchers$class.newTestFailedException(Matchers.scala:150) at org.scalatest.matchers.ShouldMatchers$.newTestFailedException(ShouldMatchers.scala:2331) at org.scalatest.matchers.ShouldMatchers$ShouldMethodHelper$.shouldMatcher(ShouldMatchers.scala:873) ...