matcher-combinators.midje — nubank/matcher-combinators 3.1.3

check-match clj

(check-match matcher actual)

match clj

(match matcher)

Takes in a matcher and returns a checker that asserts that the provided value satisfies the matcher

match-equals clj

match but using strict equals matching behavior for maps, even nested ones.

match-roughly clj

match where all numbers match if they are within the delta of their expected value

match-with clj macro

(match-with & args)

Validates that the provided values satisfies the matcher but uses the provided type->matcher map to redefine the default matchers used for the specified types.

By default when the system sees a number, it applies the equals matcher to it. So if, for example, we want to match ints by their absolute value, we could do this:

(defn abs-value-matcher [expected]
  (core/->PredMatcher
   (fn [actual] (= (Math/abs expected)
                   (Math/abs actual)))
   (str "equal to abs value of " expected)))

(match-with [int? abs-value-matcher])

NOTE: currently doesn't work in midje provided expressions

throws-match clj

(throws-match & args)

Takes in a matcher or a matcher and throwable subclass. Returns a checker that asserts an exception was raised and the ex-data within it satisfies the matcher