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1e363a8ea5
* lisp/json.el (json-encoding-object-sort-predicate): New variable for specifying a sorting predicate for JSON objects during encoding. (json--plist-to-alist): New utility function. (json-encode-hash-table): Re-use `json-encode-alist' when object keys are to be sorted. (json-encode-alist): Sort output by `json-encoding-object-sort-predicate, when set. (json-encode-plist): Re-use `json-encode-alist' when object keys are to be sorted. (json-pretty-print-buffer-ordered): New command to pretty print the buffer with object keys sorted alphabetically. (json-pretty-print-ordered): New command to pretty print the region with object keys sorted alphabetically. * test/automated/json-tests.el (test-json-plist-to-alist) (test-json-encode-plist, test-json-encode-hash-table) (test-json-encode-alist-with-sort-predicate) (test-json-encode-plist-with-sort-predicate): New tests. * etc/NEWS: Add an entry for the new commands.
101 lines
4 KiB
EmacsLisp
101 lines
4 KiB
EmacsLisp
;;; json-tests.el --- Test suite for json.el
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;; Copyright (C) 2015 Free Software Foundation, Inc.
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;; Author: Dmitry Gutov <dgutov@yandex.ru>
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;; This program is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;;; Code:
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(require 'ert)
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(require 'json)
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(ert-deftest test-json-plist-reverse ()
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(should (equal (json--plist-reverse '()) '()))
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(should (equal (json--plist-reverse '(:a 1)) '(:a 1)))
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(should (equal (json--plist-reverse '(:a 1 :b 2 :c 3))
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'(:c 3 :b 2 :a 1))))
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(ert-deftest test-json-plist-to-alist ()
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(should (equal (json--plist-to-alist '()) '()))
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(should (equal (json--plist-to-alist '(:a 1)) '((:a . 1))))
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(should (equal (json--plist-to-alist '(:a 1 :b 2 :c 3))
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'((:a . 1) (:b . 2) (:c . 3)))))
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(ert-deftest test-json-encode-plist ()
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(let ((plist '(:a 1 :b 2)))
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(should (equal (json-encode plist) "{\"a\":1,\"b\":2}"))))
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(ert-deftest json-encode-simple-alist ()
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(should (equal (json-encode '((a . 1)
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(b . 2)))
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"{\"a\":1,\"b\":2}")))
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(ert-deftest test-json-encode-hash-table ()
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(let ((hash-table (make-hash-table))
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(json-encoding-object-sort-predicate 'string<))
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(puthash :a 1 hash-table)
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(puthash :b 2 hash-table)
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(puthash :c 3 hash-table)
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(should (equal (json-encode hash-table)
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"{\"a\":1,\"b\":2,\"c\":3}"))))
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(ert-deftest test-json-encode-alist-with-sort-predicate ()
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(let ((alist '((:c . 3) (:a . 1) (:b . 2)))
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(json-encoding-object-sort-predicate 'string<))
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(should (equal (json-encode alist) "{\"a\":1,\"b\":2,\"c\":3}"))))
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(ert-deftest test-json-encode-plist-with-sort-predicate ()
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(let ((plist '(:c 3 :a 1 :b 2))
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(json-encoding-object-sort-predicate 'string<))
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(should (equal (json-encode plist) "{\"a\":1,\"b\":2,\"c\":3}"))))
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(ert-deftest json-read-simple-alist ()
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(let ((json-object-type 'alist))
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(should (equal (json-read-from-string "{\"a\": 1, \"b\": 2}")
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'((a . 1)
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(b . 2))))))
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(ert-deftest json-encode-string-with-special-chars ()
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(should (equal (json-encode-string "a\n\fb")
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"\"a\\n\\fb\""))
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(should (equal (json-encode-string "\nasdфыв\u001f\u007ffgh\t")
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"\"\\nasdфыв\\u001f\u007ffgh\\t\"")))
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(ert-deftest json-read-string-with-special-chars ()
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(should (equal (json-read-from-string "\"\\nasd\\u0444\\u044b\\u0432fgh\\t\"")
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"\nasdфывfgh\t")))
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(ert-deftest test-json-path-to-position-with-objects ()
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(let* ((json-string "{\"foo\": {\"bar\": {\"baz\": \"value\"}}}")
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(matched-path (json-path-to-position 32 json-string)))
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(should (equal (plist-get matched-path :path) '("foo" "bar" "baz")))
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(should (equal (plist-get matched-path :match-start) 25))
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(should (equal (plist-get matched-path :match-end) 32))))
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(ert-deftest test-json-path-to-position-with-arrays ()
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(let* ((json-string "{\"foo\": [\"bar\", [\"baz\"]]}")
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(matched-path (json-path-to-position 20 json-string)))
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(should (equal (plist-get matched-path :path) '("foo" 1 0)))
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(should (equal (plist-get matched-path :match-start) 18))
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(should (equal (plist-get matched-path :match-end) 23))))
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(ert-deftest test-json-path-to-position-no-match ()
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(let* ((json-string "{\"foo\": {\"bar\": \"baz\"}}")
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(matched-path (json-path-to-position 5 json-string)))
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(should (null matched-path))))
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(provide 'json-tests)
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;;; json-tests.el ends here
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