Hi Everyone, Here's the problem I am facing, I need to write a generator which takes any number of sequences, interleaves them but maintains the order within each sequence. Assume each sequence has at least one element.
For example: (rand-interleave [1 2 3 4] [:a :b] [:A :B :C :D :E]) > => [:a 1 2 :b :A :B :C 3 :D 4 :E] (rand-interleave [1 2 3 4]) > => [1 2 3 4] (rand-interleave [1]) > => [1] (rand-interleave [1] [:a] [:A]) > => [:a 1 :A] I have been able to write this down as clojure functions. But I am unable to convert this into a test.check generator. Specifically: - How to pass random index count without using rand-int i.e. use gen/choose - How do I write recursive functions which play well with test.check Here's my take on it (without the generators). (defn- first-nth > "(first-nth [[1 2 3 4] [:a :b :c :d]] > 1) > => :a" > [coll n] > (first (nth coll n))) (defn- next-nth > "(next-nth [[1 2 3 4] [:a :b :c :d]] > 1) > => [[1 2 3 4] (:b :c :d)]" > [coll n] > (->> n > (nth coll) > next > (assoc coll n) > (remove nil?) > vec)) (defn- rand-count > [coll] > (rand-int (count coll))) (defn- rand-interleave* > [coll acc] > (let [n (rand-count coll)] > (if (not-empty coll) > (rand-interleave* (next-nth coll n) > (conj acc > (first-nth coll n))) > acc))) (defn rand-interleave > [& args] > ;; Make args a vector as I would like to > ;; look up elements by their index values. > (rand-interleave* (vec args) [])) Looking forward to any suggestions on how to solve it :) Thanks, Mayank. -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
