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Basil L. Contovounesios 3f082af536 Various json.el improvements
* etc/NEWS: Announce that json-read-number is now stricter.

* json.el: Bump package version.
(json-encoding-lisp-style-closings, json-pre-element-read-function)
(json-post-element-read-function, json-advance, json-peek)
(json--path): Clarify and improve style of doc strings.
(json-join): Define as an obsolete alias of string-join.
(json-alist-p, json-plist-p): Refactor for speed and declare as
pure, side-effect-free, and error-free.
(json--plist-reverse): Rename function...
(json--plist-nreverse): ...to this, making it destructive for speed.
All callers changed.
(json--plist-to-alist): Remove, replacing single use with map-pairs.
(json--with-indentation): Accept multiple forms as arguments, fix
their indentation, and allow them to be instrumented for debugging.
Add docstring.
(json-pop, json-read-keyword, json-add-to-object)
(json-encode-array): Simplify for speed.
(json-skip-whitespace): Put newline before carriage return for
likely frequency of occurrence, and so that the characters appear in
increasing order.
(json--check-position): Use 1+.
(json-path-to-position): Open code apply-partially.
(json-keywords): Turn into a defconst and mark as obsolete now that
it is no longer used.
(json--post-value, json--number, json--escape): New rx definitions.
(json-encode-keyword): Declare as side-effect-free.
(json-read-number): Reject leading zeros and plus signs, and make
integer part mandatory in accordance with JSON standards and for
consistency with native JSON parsing functions.  Eagerly signal
json-number-format when garbage follows a valid number, e.g., when
reading "1.1.1", instead of leaving that up to the caller.  Remove
optional internal argument from advertised calling convention now
that the function is no longer recursive.
(json-encode-number): Define as an alias of number-to-string.
(json-special-chars): Turn into a defconst.
(json-read-escaped-char, json-new-object, json-read-file)
(json-pretty-print): Simplify.
(json-read-string): For consistency with other json.el error
reporting, remove check for leading '"', and use the integer value
rather than the printed representation of characters in error data.
At EOB signal json-end-of-file instead of json-string-format.
(json--long-string-threshold, json--string-buffer): New variables.
(json-encode-string): Reimplement in terms of buffer manipulation
for speed (bug#20154).
(json-read-object): Escape ?\} properly.
(json--encode-alist): New function extracted from json-encode-alist.
(json-encode-hash-table, json-encode-alist, json-encode-plist): Use
it to avoid destructively modifying the argument when
json-encoding-object-sort-predicate is non-nil without incurring
unnecessary copying (bug#40693).  Encode empty object as "{}" even
when pretty-printing.  Simplify for speed.
(json-read-array): Avoid recomputing list length on each iteration
when json-pre-element-read-function is non-nil.  Make first element
of json-array-format error data a string for consistency with
json-object-format and to make the displayed error message clearer.
(json-readtable-dispatch): Accept any kind of argument, not just
symbols.  Generate the table in a simpler manner so the dispatch
order is clearer.  Remove dispatch on ?+ and ?. now that
json-read-number is stricter and for consistency with native JSON
parsing functions.  Signal json-end-of-file if argument is nil.
(json-read): Simplify accordingly.
(json-encode): Avoid allocating a list on each invocation.

* lisp/jsonrpc.el (jsonrpc--json-read, jsonrpc--json-encode): Check
whether native JSON functions are fboundp only once, at load time.

* lisp/progmodes/python.el (python--parse-json-array): New function.
(python-shell-prompt-detect): Use it to parse JSON directly as a
list rather than converting from a vector.

* test/lisp/json-tests.el (json-tests--with-temp-buffer): Allow
instrumenting for debugging.
(test-json-join, test-json-plist-to-alist): Remove tests.

(test-json-alist-p, test-json-plist-p, test-json-advance)
(test-json-peek, test-json-pop, test-json-skip-whitespace)
(test-json-read-keyword, test-json-encode-keyword)
(test-json-encode-number, test-json-read-escaped-char)
(test-json-read-string, test-json-encode-string)
(test-json-encode-key, test-json-new-object)
(test-json-encode-hash-table, test-json-encode-plist)
(test-json-encode-list, test-json-read-array)
(test-json-encode-array, test-json-read)
(test-json-read-from-string, test-json-encode): Extend tests.

(test-json-plist-reverse): Rename test...
(test-json-plist-nreverse): ...to this and avoid modifying literal
lists.
(test-json-read-number): Rename test...
(test-json-read-integer): ...to this, focusing on integers.
(test-json-add-to-object): Rename test...
(test-json-add-to-alist): ...to this, focusing on alists.
(json-encode-simple-alist): Rename test...
(test-json-encode-alist): ...to this, extending it.
(test-json-encode-alist-with-sort-predicate): Rename test...
(test-json-encode-alist-sort): ...to this, extending it.
(test-json-encode-plist-with-sort-predicate): Rename test...
(test-json-encode-plist-sort): ...to this, extending it.

(test-json-read-keyword-invalid, test-json-read-fraction)
(test-json-read-exponent, test-json-read-fraction-exponent)
(test-json-read-number-invalid)
(test-json-read-escaped-char-invalid, test-json-add-to-plist)
(test-json-add-to-hash-table, test-json-read-object-empty)
(test-json-read-object-invalid, test-json-read-object-function)
(test-json-encode-hash-table-pretty)
(test-json-encode-hash-table-lisp-style)
(test-json-encode-hash-table-sort, test-json-encode-alist-pretty)
(test-json-encode-alist-lisp-style, test-json-encode-plist-pretty)
(test-json-encode-plist-lisp-style, test-json-read-array-function)
(test-json-encode-array-pretty, test-json-encode-array-lisp-style)
(test-json-read-invalid): New tests.

(test-json-path-to-position-no-match): Use should-not.
(test-json-read-object): Move error check to new test
test-json-read-object-invalid.
(test-json-pretty-print-object): Adapt test now that empty objects
are pretty-printed as "{}".
2020-05-22 15:16:13 +01:00
..
data Port the 'module/async-pipe' test to MS-Windows 2020-03-27 16:19:20 +03:00
lib-src Update copyright year to 2020 2020-01-01 00:59:52 +00:00
lisp Various json.el improvements 2020-05-22 15:16:13 +01:00
manual Allow underscores in CSS variable names 2020-05-10 14:57:22 +02:00
src Add test for recent buffer-local-variables change 2020-05-18 13:08:27 -07:00
ChangeLog.1 Update copyright year to 2020 2020-01-01 00:59:52 +00:00
file-organization.org ; * test/file-organization.org: Fix typo. 2018-01-18 16:26:50 -05:00
Makefile.in Update copyright year to 2020 2020-01-01 00:59:52 +00:00
README Update copyright year to 2020 2020-01-01 00:59:52 +00:00

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Copyright (C) 2008-2020 Free Software Foundation, Inc.
See the end of the file for license conditions.

This directory contains files intended to test various aspects of
Emacs's functionality.  Please help add tests!

See the file file-organization.org for the details of the directory
structure and file-naming conventions.

Emacs uses ERT, Emacs Lisp Regression Testing, for testing.  See (info
"(ert)") or https://www.gnu.org/software/emacs/manual/html_node/ert/
for more information on writing and running tests.

Tests could be tagged by the developer.  In this test directory, the
following tags are recognized:

* :expensive-test
  The test needs a serious amount of time to run.  It is not intended
  to run on a regular basis by users.  Instead, it runs on demand
  only, or during regression tests.

* :unstable
  The test is under development.  It shall run on demand only.

The Makefile in this directory supports the following targets:

* make check
  Run all tests as defined in the directory.  Expensive and unstable
  tests are suppressed.  The result of the tests for <filename>.el is
  stored in <filename>.log.

* make check-maybe
  Like "make check", but run only the tests for files which have
  unresolved prerequisites.

* make check-expensive
  Like "make check", but run also the tests marked as expensive.

* make check-all
  Like "make check", but run all tests.

* make <filename>  -or-  make <filename>.log
  Run all tests declared in <filename>.el.  This includes expensive
  tests.  In the former case the output is shown on the terminal, in
  the latter case the output is written to <filename>.log.

<filename> could be either a relative file name like
"lisp/files-tests", or a package name like "files-tests".

ERT offers selectors, which make it possible to filter out which test
cases shall run.  The make variable $(SELECTOR) gives you a simple
mean to use your own selectors.  The ERT manual describes how
selectors are constructed, see (info "(ert)Test Selectors") or
https://www.gnu.org/software/emacs/manual/html_node/ert/Test-Selectors.html

You could use predefined selectors of the Makefile.  "make <filename>
SELECTOR='$(SELECTOR_DEFAULT)'" runs all tests for <filename>.el
except the tests tagged as expensive or unstable.

If your test file contains the tests "test-foo", "test2-foo" and
"test-foo-remote", and you want to run only the former two tests, you
could use a selector regexp (note that the "$" needs to be doubled to
protect against "make" variable expansion):

    make <filename> SELECTOR='"foo$$"'

Note that although the test files are always compiled (unless they set
no-byte-compile), the source files will be run when expensive or
unstable tests are involved, to give nicer backtraces.  To run the
compiled version of a test use

    make TEST_LOAD_EL=no ...

Some tests might take long time to run.  In order to summarize the
<nn> tests with the longest duration, call

    make SUMMARIZE_TESTS=<nn> ...

The tests are run in batch mode by default; sometimes it's useful to
get precisely the same environment but run in interactive mode for
debugging.  To do that, use

    make TEST_INTERACTIVE=yes ...

Some of the tests require a remote temporary directory
(autorevert-tests.el, filenotify-tests.el, shadowfile-tests.el and
tramp-tests.el).  Per default, a mock-up connection method is used
(this might not be possible when running on MS Windows).  If you want
to test a real remote connection, set $REMOTE_TEMPORARY_FILE_DIRECTORY
to a suitable value in order to overwrite the default value:

  env REMOTE_TEMPORARY_FILE_DIRECTORY=/ssh:host:/tmp make ...


There are also continuous integration tests on
<https://hydra.nixos.org/jobset/gnu/emacs-trunk> (see
admin/notes/hydra) and <https://emba.gnu.org/emacs/emacs> (see
admin/notes/emba).  Both environments provide an environment variable,
which could be used to determine, whether the tests run in one of
these test environments.

$EMACS_HYDRA_CI indicates the hydra environment, and $EMACS_EMBA_CI
indicates the emba environment, respectively.


(Also, see etc/compilation.txt for compilation mode font lock tests.)


This file is part of GNU Emacs.

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it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
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GNU Emacs 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
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You should have received a copy of the GNU General Public License
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