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
Trait containing the
inside
construct, which allows you to make statements about nested object graphs using pattern matching.For example, given the following case classes:
You could write:
If an assertion fails, the error message will include the
toString
of each value passed toinside
clauses enclosing the failed assertion. For example, ifrec
in the previous expression was defined like this:The error message will read: