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(import-macros {: fn*} :macros.fn)
(import-macros {: into} :macros.core)
(import-macros {: assert-eq : assert-ne : assert* : test} :test)
(local
{: apply ;; not tested
: seq ;; tested
: first ;; not tested
: rest ;; not tested
: conj ;; not tested
: cons ;; not tested
: concat ;; tested
: reduce ;; tested
: reduce-kv ;; tested
: mapv ;; tested
: filter ;; tested
: map? ;; tested
: seq? ;; tested
: nil? ;; tested
: zero? ;; tested
: pos? ;; tested
: neg? ;; tested
: even? ;; tested
: odd? ;; tested
: int? ;; tested
: pos-int? ;; tested
: neg-int? ;; tested
: double? ;; tested
: string? ;; tested
: empty? ;; tested
: not-empty ;; tested
: eq? ;; tested
: identity ;; tested
: comp ;; not tested
: every? ;; tested
: some ;; tested
: complement ;; tested
: constantly ;; tested
: range ;; tested
: reverse ;; tested
}
(require :core))
(test equality
;; comparing basetypes
(assert-eq 1 1)
(assert-ne 1 2)
(assert* (eq? 1 1 1 1 1))
(assert-eq 1.0 1.0)
(assert* (eq? 1.0 1.0 1.0))
(assert* (eq? 1.0 1.0 1.0))
(assert* (eq? "1" "1" "1" "1" "1"))
;; deep comparison
(assert* (eq? []))
(assert-eq [] [])
(assert-eq [] {})
(assert-eq [1 2] [1 2])
(assert-ne [1] [1 2])
(assert-ne [1 2] [1])
(assert* (eq? [1 [2]] [1 [2]] [1 [2]]))
(assert* (eq? [1 [2]] [1 [2]] [1 [2]]))
(assert* (not (eq? [1 [2]] [1 [2]] [1 [2 [3]]])))
(assert-eq (range 10) [0 1 2 3 4 5 6 7 8 9])
(assert-eq (range -5 5) [-5 -4 -3 -2 -1 0 1 2 3 4])
(assert-eq [0 0.2 0.4 0.6 0.8] [0 0.2 0.4 0.6 0.8])
(assert-eq (range 0 1 0.2) (range 0 1 0.2))
(let [a {:a 1 :b 2}
b {:a 1 :b 2}]
(table.insert b 10)
(assert-ne a b))
(let [a [1 2 3]
b [1 2 3]]
(tset b :a 10)
(assert-ne a b))
(assert-eq [1 2 3] {1 1 2 2 3 3})
;; TODO: decide if this is right or not. Looking from `seq'
;; perspective, it is correct, as `(seq {4 1})' and `(seq [nil nil
;; nil 1])' both yield `{4 1}'. From Lua's point this is not the
;; same thing, for example because the sizes of these tables are
;; different.
(assert-eq {4 1} [nil nil nil 1]))
(test seq
(assert-eq (seq []) nil)
(assert-eq (seq {}) nil)
(assert-eq (seq [1]) [1])
(assert-eq (seq [1 2 3]) [1 2 3])
(assert-eq (seq {:a 1}) [["a" 1]]))
(test mapv
(assert-eq (mapv #(* $ $) [1 2 3 4]) [1 4 9 16])
(assert-eq (into {} (mapv (fn [[k v]] [k (* v v)]) {:a 1 :b 2 :c 3}))
(into {} [[:a 1] [:b 4] [:c 9]]))
(assert-eq (into {} (mapv (fn [[k1 v1] [k2 v2]] [k1 (* v1 v2)])
{:a 1 :b 2 :c 3}
{:a -1 :b 0 :c 2}))
{:a -1 :b 0 :c 6})
(assert-eq (mapv string.upper ["a" "b" "c"]) ["A" "B" "C"])
(assert-eq (mapv #(+ $1 $2 $3 $4) [1 -1] [2 -2] [3 -3] [4 -4]) [(+ 1 2 3 4) (+ -1 -2 -3 -4)])
(assert-eq (mapv (fn [f-name s-name company position]
(.. f-name " " s-name " works as " position " at " company))
["Bob" "Alice"]
["Smith" "Watson"]
["Happy Days co." "Coffee With You"]
["secretary" "chief officer"])
["Bob Smith works as secretary at Happy Days co."
"Alice Watson works as chief officer at Coffee With You"]))
(test reduce
(fn* plus
([] 0)
([a] a)
([a b] (+ a b))
([a b & c]
(var res (+ a b))
(each [_ v (ipairs c)]
(set res (+ res v)))
res))
(assert-eq (reduce plus (range 10)) 45)
(assert-eq (reduce plus -3 (range 10)) 42)
(assert-eq (reduce plus 10 nil) 10)
(fn mapping [f]
(fn [reducing]
(fn [result input]
(reducing result (f input)))))
(fn reduce- [f init tbl]
(if (and tbl (> (length tbl) 0))
(reduce f (f init (first tbl)) (rest tbl))
init))
(assert-eq (reduce plus (range 10)) (reduce- plus 0 (range 10))))
(test predicate
(assert* (int? 1))
(assert* (not (int? 1.1)))
(assert* (pos? 1))
(assert* (and (not (pos? 0)) (not (pos? -1))))
(assert* (neg? -1))
(assert* (and (not (neg? 0)) (not (neg? 1))))
(assert* (pos-int? 42))
(assert* (not (pos-int? 4.2)))
(assert* (neg-int? -42))
(assert* (not (neg-int? -4.2)))
(assert* (string? :s))
(assert* (double? 3.3))
(assert* (not (double? 3.0)))
(assert* (map? {:a 1}))
(assert* (not (map? {})))
(assert* (not (seq? [])))
(assert* (seq? [{:a 1}]))
(assert* (not (seq? {})))
(assert* (not (seq? {:a 1})))
(assert* (nil?))
(assert* (nil? nil))
(assert* (not (nil? 1))))
(test filter
(assert-eq (filter even? (range 10)) [0 2 4 6 8])
(assert-eq (filter odd? (range 10)) [1 3 5 7 9])
(assert-eq (filter map? [{:a 1} {5 1} [1 2] [] {}]) [{:a 1} {5 1}])
(assert-eq (filter seq? [{:a 1} {5 1} [1 2] [] {}]) [[1 2]]))
(test concat
(assert-eq (concat) nil)
(assert-eq (concat []) [])
(assert-eq (concat [1 2 3]) [1 2 3])
(assert-eq (concat [1 2 3] [4 5 6]) [1 2 3 4 5 6])
(assert-eq (concat [1 2] [3 4] [5 6]) [1 2 3 4 5 6])
(assert-eq (concat {:a 1} {:b 2}) [[:a 1] [:b 2]]))
(test reverse
(assert-eq (reverse [1 2 3]) [3 2 1])
(assert-eq (reverse {:a 1}) [[:a 1]]))
(test constantly
(let [always-nil (constantly nil)]
(assert-eq (always-nil) nil)
(assert-eq (always-nil 1) nil)
(assert-eq (always-nil 1 2 3 4 "5") nil))
(let [always-true (constantly true)]
(assert* (always-true))
(assert* (always-true false))))
(test complement
(assert* ((complement nil?) 10)))
(test some
(assert* (some pos-int? [-1 1.1 2.3 -5.5 42 10 -27]))
(assert* (not (some pos-int? {:a 1})))
(assert* (some pos-int? [{:a 1} "1" -1 1])))
(test every?
(assert* (not (every? pos-int? [-1 1.1 2.3 -5.5 42 10 -27])))
(assert* (not (every? pos-int? {:a 1})))
(assert* (every? pos-int? [1 2 3 4 5])))
(test identity
(assert-eq (identity 1) 1)
(assert-eq (identity {:a 1 :b 2}) {:a 1 :b 2})
(assert-eq (identity [1 2 3]) [1 2 3])
(assert-eq (identity "abc") "abc"))
(test empty?
(assert* (empty? []))
(assert* (empty? {}))
(assert* (empty? ""))
(assert* (not (empty? "1")))
(assert* (not (empty? [1])))
(assert* (not (empty? {:a 1}))))
(test not-empty
(assert-eq (not-empty []) nil)
(assert-eq (not-empty {}) nil)
(assert-eq (not-empty "") nil)
(assert-eq (not-empty "1") "1")
(assert-eq (not-empty [1]) [1])
(assert-eq (not-empty {:a 1}) {:a 1}))
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