/
collection_diffs.clj
42 lines (34 loc) · 1.92 KB
/
collection_diffs.clj
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(ns midje.checking.checkers.collection-diffs
"Checkers for collections and strings."
(:require [midje.util.pile :as pile]
[midje.checking.checkers.collection :as old]
[midje.checking.core :as core]
[such.shorthand :refer [not-empty?]]
flare.map)
(:import [flare.map MapKeysDiff]
[flare.atom AtomDiff]))
;; Note: checkers need to be exported in ../checkers.clj
;; TODO: Currently not handling "looseness"
(defn classify [actual expected looseness]
(cond (and (map? actual) (map? expected)) :map:map
:else :unknown))
(defmulti contains:diffs (fn [actual expected looseness] (classify actual expected looseness)))
(defmethod contains:diffs :map:map [actual-map expected-map _]
(let [[actual-keys expected-keys] (map #(set (keys %)) [actual-map expected-map])
missing-keys (clojure.set/difference expected-keys actual-keys)
diff-map (reduce (fn [so-far shared-key]
(let [[actual-val expected-val] (map shared-key [actual-map expected-map])
comparison (core/extended-= actual-val expected-val)]
(cond (core/extended-true? comparison)
so-far
(core/data-laden-falsehood? comparison)
(do
(prn "data laden falsehood " comparison)
(assoc so-far shared-key (new AtomDiff actual-val expected-val)))
:else
(assoc so-far shared-key (new AtomDiff actual-val expected-val)))))
{}
(clojure.set/difference expected-keys missing-keys))]
(-> []
(cond-> (not-empty? missing-keys) (conj (new MapKeysDiff missing-keys nil))
(not-empty? diff-map) (conj diff-map)))))