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;;; nrepl-dict-tests.el
;; Copyright © 2012-2018 Tim King, Bozhidar Batsov
;; Author: Tim King <kingtim@gmail.com>
;; Bozhidar Batsov <bozhidar@batsov.com>
;; Artur Malabarba <bruce.connor.am@gmail.com>
;; This file is NOT part of GNU Emacs.
;; This program is free software: you can redistribute it and/or
;; modify it under the terms of the GNU General Public License as
;; published by the Free Software Foundation, either version 3 of the
;; License, or (at your option) any later version.
;;
;; This program is distributed in the hope that it will be useful, but
;; WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;; General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see `http://www.gnu.org/licenses/'.
;;; Commentary:
;; This file is part of CIDER
;;; Code:
(require 'buttercup)
(require 'nrepl-dict)
(describe "nrepl-dict-merge"
:var (input)
(before-each
(setq input '(dict 2 4 1 2 "10" "90" "a" "b")))
(it "merges dictionaries"
(expect (nrepl-dict-merge input '(dict 1 3 "10" me)) :to-equal '(dict 2 4 1 3 "10" me "a" "b"))
(expect input :to-equal '(dict 2 4 1 3 "10" me "a" "b")))
(it "handles nil values"
(expect (nrepl-dict-merge nil '(dict 1 3 "10" me)) :to-equal '(dict 1 3 "10" me))
(expect (nrepl-dict-merge '(dict 1 3 "10" me) nil) :to-equal '(dict 1 3 "10" me))))
(describe "nrepl-dict-contains"
:var (input)
(it "returns non-nil if dict contains the element"
(setq input '(dict 1 "a" 2 "B" "3" "d" 4 nil sym yes nil nil-val))
(expect (nrepl-dict-contains input 1) :to-be-truthy)
(expect (nrepl-dict-contains input 2) :to-be-truthy)
(expect (nrepl-dict-contains input "3") :to-be-truthy)
(expect (nrepl-dict-contains input 4) :to-be-truthy)
(expect (nrepl-dict-contains input 'sym) :to-be-truthy))
(it "allows `nil' to be a key in the nREPL dict"
(setq input '(dict 1 "a" 2 "B" "3" "d" 4 nil sym yes nil nil-val))
(expect (nrepl-dict-contains input nil) :to-be-truthy))
(it "returns `nil' if dict doesnt contain the element"
(setq input '(dict 1 "a" 2 "B" "3" "d" 4 nil sym yes))
(expect (nrepl-dict-contains input 11) :to-equal nil)
(expect (nrepl-dict-contains input 12) :to-equal nil)
(expect (nrepl-dict-contains input "13") :to-equal nil)
(expect (nrepl-dict-contains input 14) :to-equal nil)
(expect (nrepl-dict-contains input 'missing) :to-equal nil)
(expect (nrepl-dict-contains input nil) :to-equal nil)))
(describe "nrepl-dict-get"
:var (input)
(describe "when key is present in the dict"
(before-all
(setq input '(dict 1 "a" 2 "B" "3" "d" 4 nil sym yes nil nil-val)))
(it "returns the corresponding value"
(expect (nrepl-dict-get input 1) :to-equal "a")
(expect (nrepl-dict-get input 2) :to-equal "B")
(expect (nrepl-dict-get input "3") :to-equal "d")
(expect (nrepl-dict-get input 4) :to-equal nil)
(expect (nrepl-dict-get input 'sym) :to-equal'yes)
(expect (nrepl-dict-get input nil) :to-equal 'nil-val))
(it "ignores the default value, if given"
(expect (nrepl-dict-get input 1 "default") :to-equal "a")
(expect (nrepl-dict-get input 2 "default") :to-equal "B")
(expect (nrepl-dict-get input "3" "default") :to-equal "d")
(expect (nrepl-dict-get input 4 "default") :to-equal nil)
(expect (nrepl-dict-get input 'sym "default") :to-equal'yes)
(expect (nrepl-dict-get input nil "default") :to-equal 'nil-val)))
(describe "when key is not present in the dict"
(before-all
(setq input '(dict 1 "a" 2 "B" "3" "d" 4 nil sym yes)))
(it "returns nil, when default value is not given"
(expect (nrepl-dict-get input 11) :to-equal nil)
(expect (nrepl-dict-get input "13") :to-equal nil)
(expect (nrepl-dict-get input 14) :to-equal nil)
(expect (nrepl-dict-get input 'missing) :to-equal nil)
(expect (nrepl-dict-get input nil) :to-equal nil))
(it "returns the default value, if given"
(expect (nrepl-dict-get input 11 "default") :to-equal "default")
(expect (nrepl-dict-get input 21 "default") :to-equal "default")
(expect (nrepl-dict-get input "31" "default") :to-equal "default")
(expect (nrepl-dict-get input 41 "default") :to-equal "default")
(expect (nrepl-dict-get input 'missing "default") :to-equal "default")
(expect (nrepl-dict-get input nil "default") :to-equal "default"))))
(describe "nrepl--cons"
(it "cons's the obj onto the list or dict"
(expect (nrepl--cons '(23 . 44) '(dict (2 . 3) (3 . 4) (4 . 5)))
:to-equal '(dict (23 . 44) (2 . 3) (3 . 4) (4 . 5)))))
(describe "nrepl--push"
(it "cons's the obj to the top element of the stack"
(expect (nrepl--push 34 '(())) :to-equal '((34)))
(expect (nrepl--push '(34) '(() (1 2 3))) :to-equal '(((34)) (1 2 3)))
(expect (nrepl--push 34 '((1))) :to-equal '((34 1)))
(expect (nrepl--push 34 '((1) (2))) :to-equal '((34 1) (2)))
(expect (nrepl--push '(34) '((1) (2))) :to-equal '(((34) 1) (2)))
(expect (nrepl--push 34 '((dict a b) (2))) :to-equal '((dict 34 a b) (2)))))
(describe "nrepl--keys"
(it "returns all keys in the nREPL dict"
(expect (nrepl-dict-keys '(dict (2 . 3) (3 . 4) (4 . 5)))
:to-equal '((2 . 3) (4 . 5)))))
(describe "nrepl--vals"
(it "returns all values in the nREPL dict"
(expect (nrepl-dict-vals '(dict (2 . 3) (3 . 4) (4 . 5)))
:to-equal '((3 . 4) nil))))
(describe "nrepl--map"
(it "maps a fn over all key-value pairs of a dict"
(expect (nrepl-dict-map (lambda (k v) (+ k v))
'(dict 0 1 2 3 4 5))
:to-equal '(1 5 9))))
(describe "nrepl--merge"
:var (dict1 dict2)
(it "preserves id and session keys of dict1"
(setq dict1 '(dict "id" 1 "session" 1 "blah" (1 2))
dict2 '(dict "id" 2 "session" 2))
(expect (nrepl--merge dict1 dict2)
:to-equal '(dict "id" 1 "session" 1 "blah" (1 2))))
(it "appends all other keys"
(setq dict1 '(dict "id" 1 "session" 1 "blah" (1 2) "x" "aaa" "y" (dict "z" "A"))
dict2 '(dict "id" 2 "session" 2 "blah" (3 4) "x" "AAA" "y" (dict "z" "B")))
(expect (nrepl--merge dict1 dict2)
:to-equal '(dict "id" 1 "session" 1 "blah" (1 2 3 4) "x" "aaaAAA" "y" (dict "z" "AB"))))
(it "dict1 is updated destructively"
(setq dict1 '(dict "id" 1 "session" 1 "blah" (1 2))
dict2 '(dict "id" 2 "session" 2 "blah" (3 4))
dict3 '(dict "id" 1 "session" 1 "blah" (1 2)))
(nrepl--merge dict1 dict2)
(expect dict1 :not :to-equal dict3)))
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