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name: testing/lisp/test-ob-shell.el 	 # note: path name is non-authoritative(*)

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;;; test-ob-shell.el  -*- lexical-binding: t; -*-

;; Copyright (c) 2010-2014, 2019 Eric Schulte
;; Authors: Eric Schulte

;; 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 <https://www.gnu.org/licenses/>.

;;; Comment:

;;; Requirements:
(org-test-for-executable "sh")

(require 'ob-core)

(unless (featurep 'ob-shell)
  (signal 'missing-test-dependency "Support for Shell code blocks"))

;;; Code:
(defun test-ob-shell-multiline-string (&rest strings)
  "Join STRINGS with newlines.

Each expression of STRINGS should evaluate to a string.

    (test-ob-shell-multiline-string
      \"first\"
      (format \"second\")
      (let ((last \"third\")) last))
 \"first\\nsecond\\nthird\"

\(fn STRINGS)"
  (string-join strings "\n"))

(ert-deftest test-ob-shell/dont-insert-spaces-on-expanded-bodies ()
  "Expanded shell bodies should not start with a blank line unless
the strings of the tangled block does."
  (should-not (string-match "^[\n\r][\t ]*[\n\r]"
                            (org-babel-expand-body:generic "echo 2" '())))
  (should (string-match "^[\n\r][\t ]*[\n\r]"
                        (org-babel-expand-body:generic "\n\necho 2" '()))))

(ert-deftest test-ob-shell/dont-error-on-empty-results ()
  (should (null (org-babel-execute:sh nil nil))))

(ert-deftest test-ob-shell/dont-error-on-babel-error ()
  (if (should (null (org-babel-execute:sh "ls NoSuchFileOrDirectory.txt" nil)))
      (kill-buffer "*Org-Babel Error Output*")))

;; TODO refactor session name into variable after refactoring
;; org-babel-execute:sh.  See comment there.
(ert-deftest test-ob-shell/session-single-return-returns-string ()
  (let ((kill-buffer-query-functions nil)
        (result (org-babel-execute:sh
                 "echo test-ob-shell/session-evaluation-single-return-returns-string"
                 '((:session . "test-ob-shell/session-evaluation-single-return-returns-string")))))
    (should result)
    (if (should (string= "test-ob-shell/session-evaluation-single-return-returns-string" result))
        (kill-buffer "test-ob-shell/session-evaluation-single-return-returns-string"))))

;; TODO refactor session name into variable after refactoring
;; org-babel-execute:sh.  See comment there.
(ert-deftest test-ob-shell/session-multiple-returns-returns-list ()
  (let ((kill-buffer-query-functions nil)
        (result (org-babel-execute:sh
                 "echo 1; echo 2"
                 '((:session . "test-ob-shell/session-multiple-returns-returns-list")))))
    (should result)
    (should (listp result))
    (if (should (equal '((1) (2)) result))
        (kill-buffer "test-ob-shell/session-multiple-returns-returns-list"))))

(ert-deftest test-ob-shell/generic-uses-no-arrays ()
  "Test generic serialization of array into a single string."
  (org-test-with-temp-text
      (test-ob-shell-multiline-string
       "#+NAME: sample_array"
       "| one   |"
       "| two   |"
       "| three |"
       ""
       "#+begin_src sh :exports results :results output :var array=sample_array"
       "echo ${array}"
       "<point>"
       "#+end_src")
    (should (equal "one two three" (org-trim (org-babel-execute-src-block))))))

(ert-deftest test-ob-shell/bash-uses-arrays ()
  "Bash sees named array as a simple indexed array.

In this test, we check that the returned value is indeed only the
first item of the array, as opposed to the generic serialiation
that will return all elements of the array as a single string."
  (org-test-with-temp-text
      (test-ob-shell-multiline-string
       "#+NAME: sample_array"
       "| one   |"
       "| two   |"
       "| three |"
       ""
       "#+begin_src bash :exports results :results output :var array=sample_array"
       "echo ${array}"
       "<point>"
       "#+end_src")
    (should (equal "one" (org-trim (org-babel-execute-src-block))))))

(ert-deftest test-ob-shell/generic-uses-no-assoc-arrays-simple-map ()
  "Generic shell: no special handing for key-value mapping table

No associative arrays for generic.  The shell will see all values
as a single string."
  (org-test-with-temp-text
      (test-ob-shell-multiline-string
       "#+NAME: sample_mapping_table"
       "| first  | one   |"
       "| second | two   |"
       "| third  | three |"
       ""
       "#+begin_src sh :exports results :results output :var table=sample_mapping_table"
       "echo ${table}"
       "<point>"
       "#+end_src")
    (should
     (equal "first one second two third three"
            (org-trim (org-babel-execute-src-block))))))

(ert-deftest test-ob-shell/generic-uses-no-assoc-arrays-3-columns ()
  "Associative array tests (more than 2 columns)

No associative arrays for generic.  The shell will see all values
as a single string."
  (org-test-with-temp-text
      (test-ob-shell-multiline-string
       "#+NAME: sample_big_table"
       "| bread     |  2 | kg |"
       "| spaghetti | 20 | cm |"
       "| milk      | 50 | dl |"
       ""
       "#+begin_src sh :exports results :results output :var table=sample_big_table"
       "echo ${table}"
       "<point>"
       "#+end_src")
    (should
     (equal "bread 2 kg spaghetti 20 cm milk 50 dl"
            (org-trim (org-babel-execute-src-block))))))

(ert-deftest test-ob-shell/bash-uses-assoc-arrays ()
  "Bash shell: support for associative arrays

Bash will see a table that contains the first column as the
'index' of the associative array, and the second column as the
value. "
  (org-test-with-temp-text
      (test-ob-shell-multiline-string
       "#+NAME: sample_mapping_table"
       "| first  | one   |"
       "| second | two   |"
       "| third  | three |"
       ""
       "#+begin_src bash :exports :results output results :var table=sample_mapping_table"
       "echo ${table[second]}"
       "<point>"
       "#+end_src")
    (should
     (equal "two"
            (org-trim (org-babel-execute-src-block))))))

(ert-deftest test-ob-shell/bash-uses-assoc-arrays-with-lists ()
  "Bash shell: support for associative arrays with lists

Bash will see an associative array that contains each row as a single
string. Bash cannot handle lists in associative arrays."
  (org-test-with-temp-text
      (test-ob-shell-multiline-string
       "#+NAME: sample_big_table"
       "| bread     |  2 | kg |"
       "| spaghetti | 20 | cm |"
       "| milk      | 50 | dl |"
       ""
       "#+begin_src bash :exports results :results output :var table=sample_big_table"
       "echo ${table[spaghetti]}"
       "<point>"
       "#+end_src")
  (should
   (equal "20 cm"
          (org-trim (org-babel-execute-src-block))))))

(ert-deftest ob-shell/simple-list ()
  "Test list variables in shell."
  ;; With bash, a list is turned into an array.
  (should
   (equal "2"
          (org-test-with-temp-text
           "#+BEGIN_SRC bash :results output :var l='(1 2)\necho ${l[1]}\n#+END_SRC"
           (org-trim (org-babel-execute-src-block)))))
  ;; On sh, it is a string containing all values.
  (should
   (equal "1 2"
          (org-test-with-temp-text
           "#+BEGIN_SRC sh :results output :var l='(1 2)\necho ${l}\n#+END_SRC"
           (org-trim (org-babel-execute-src-block))))))

(ert-deftest ob-shell/remote-with-stdin-or-cmdline ()
  "Test :stdin and :cmdline with a remote directory."
  ;; We assume `default-directory' is a local directory.
  (skip-unless (not (memq system-type '(ms-dos windows-nt))))
  (org-test-with-tramp-remote-dir remote-dir
      (dolist (spec `( ()
                       (:dir ,remote-dir)
                       (:dir ,remote-dir :cmdline t)
                       (:dir ,remote-dir :stdin   t)
                       (:dir ,remote-dir :cmdline t :shebang t)
                       (:dir ,remote-dir :stdin   t :shebang t)
                       (:dir ,remote-dir :cmdline t :stdin t :shebang t)
                       (:cmdline t)
                       (:stdin   t)
                       (:cmdline t :shebang t)
                       (:stdin   t :shebang t)
                       (:cmdline t :stdin t :shebang t)))
        (let ((default-directory (or (plist-get spec :dir) default-directory))
              (org-confirm-babel-evaluate nil)
              (params-line "")
              (who-line "  export who=tramp")
              (args-line "  echo ARGS: --verbose 23 71"))
          (when-let ((dir (plist-get spec :dir)))
            (setq params-line (concat params-line " " ":dir " dir)))
          (when (plist-get spec :stdin)
            (setq who-line "  read -r who")
            (setq params-line (concat params-line " :stdin input")))
          (when (plist-get spec :cmdline)
            (setq args-line "  echo \"ARGS: $*\"")
            (setq params-line (concat params-line " :cmdline \"--verbose 23 71\"")))
          (when (plist-get spec :shebang)
            (setq params-line (concat params-line " :shebang \"#!/bin/sh\"")))
          (let* ((result (org-test-with-temp-text
                             (mapconcat #'identity
                                        (list "#+name: input"
                                              "tramp"
                                              ""
                                              (concat "<point>"
                                                      "#+begin_src sh :results output " params-line)
                                              args-line
                                              who-line
                                              "  echo \"hello $who from $(pwd)/\""
                                              "#+end_src")
                                        "\n")
                           (org-trim (org-babel-execute-src-block))))
                 (expected (concat "ARGS: --verbose 23 71"
                                   "\nhello tramp from " (file-local-name default-directory))))
            (should (equal result expected)))))))

(ert-deftest ob-shell/results-table ()
  "Test :results table."
  (should
   (equal '(("I \"want\" it all"))
          (org-test-with-temp-text
              "#+BEGIN_SRC sh :results table\necho 'I \"want\" it all'\n#+END_SRC"
            (org-babel-execute-src-block)))))

(ert-deftest ob-shell/results-list ()
  "Test :results list."
  (org-test-with-temp-text
      "#+BEGIN_SRC sh :results list\necho 1\necho 2\necho 3\n#+END_SRC"
    (should
     (equal '((1) (2) (3))
            (org-babel-execute-src-block)))
    (search-forward "#+results")
    (beginning-of-line 2)
    (should
     (equal
      "- 1\n- 2\n- 3\n"
      (buffer-substring-no-properties (point) (point-max))))))

;;; Standard output

(ert-deftest ob-shell/standard-output-after-success ()
  "Test standard output after exiting with a zero code."
  (should (= 1
             (org-babel-execute:sh
              "echo 1" nil))))

(ert-deftest ob-shell/standard-output-after-failure ()
  "Test standard output after exiting with a non-zero code."
  (should (= 1
             (org-babel-execute:sh
              "echo 1; exit 2" nil))))

;;; Standard error

(ert-deftest ob-shell/error-output-after-success ()
  "Test that standard error shows in the error buffer, alongside the
exit code, after exiting with a zero code."
  (should
   (string= "1
[ Babel evaluation exited with code 0 ]"
            (progn (org-babel-eval-wipe-error-buffer)
                   (org-babel-execute:sh
                    "echo 1 >&2" nil)
                   (with-current-buffer org-babel-error-buffer-name
                     (buffer-string))))))

(ert-deftest ob-shell/error-output-after-failure ()
  "Test that standard error shows in the error buffer, alongside the
exit code, after exiting with a non-zero code."
  (should
   (string= "1
[ Babel evaluation exited with code 2 ]"
            (progn (org-babel-eval-wipe-error-buffer)
                   (org-babel-execute:sh
                    "echo 1 >&2; exit 2" nil)
                   (with-current-buffer org-babel-error-buffer-name
                     (buffer-string))))))

(ert-deftest ob-shell/error-output-after-failure-multiple ()
  "Test that multiple standard error strings show in the error
buffer, alongside multiple exit codes."
  (should
   (string= "1
[ Babel evaluation exited with code 2 ]
3
[ Babel evaluation exited with code 4 ]"
            (progn (org-babel-eval-wipe-error-buffer)
                   (org-babel-execute:sh
                    "echo 1 >&2; exit 2" nil)
                   (org-babel-execute:sh
                    "echo 3 >&2; exit 4" nil)
                   (with-current-buffer org-babel-error-buffer-name
                     (buffer-string))))))

;;; Exit codes

(ert-deftest ob-shell/exit-code ()
  "Test that the exit code shows in the error buffer after exiting
with a non-zero return code."
  (should
   (string= "[ Babel evaluation exited with code 1 ]"
            (progn (org-babel-eval-wipe-error-buffer)
                   (org-babel-execute:sh
                    "exit 1" nil)
                   (with-current-buffer org-babel-error-buffer-name
                     (buffer-string))))))

(ert-deftest ob-shell/exit-code-multiple ()
  "Test that multiple exit codes show in the error buffer after
exiting with a non-zero return code multiple times."
  (should
   (string= "[ Babel evaluation exited with code 1 ]
[ Babel evaluation exited with code 2 ]"
            (progn (org-babel-eval-wipe-error-buffer)
                   (org-babel-execute:sh
                    "exit 1" nil)
                   (org-babel-execute:sh
                    "exit 2" nil)
                   (with-current-buffer org-babel-error-buffer-name
                     (buffer-string))))))

(provide 'test-ob-shell)

;;; test-ob-shell.el ends here

debug log:

solving a1cacdc16 ...
found a1cacdc16 in https://list.orgmode.org/orgmode/18555580d75.d7b471f9370716.1497263973038999899@excalamus.com/
found 5c77b088b in https://list.orgmode.org/orgmode/18555580d75.d7b471f9370716.1497263973038999899@excalamus.com/
found 4c70c07fb in https://list.orgmode.org/orgmode/18555580d75.d7b471f9370716.1497263973038999899@excalamus.com/
found df32b8aa7 in https://list.orgmode.org/orgmode/18555580d75.d7b471f9370716.1497263973038999899@excalamus.com/
found 54b6d5a6f in https://list.orgmode.org/orgmode/18555580d75.d7b471f9370716.1497263973038999899@excalamus.com/
found 625dc64b9 in https://list.orgmode.org/orgmode/18555580d75.d7b471f9370716.1497263973038999899@excalamus.com/ ||
	https://list.orgmode.org/orgmode/1853354beb4.fce54d8d902653.6359367327256505471@excalamus.com/
found 816e93ac5 in https://list.orgmode.org/orgmode/18555580d75.d7b471f9370716.1497263973038999899@excalamus.com/ ||
	https://list.orgmode.org/orgmode/1853354beb4.fce54d8d902653.6359367327256505471@excalamus.com/
found b0d9beff4 in https://git.savannah.gnu.org/cgit/emacs/org-mode.git
preparing index
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100644 b0d9beff467c9a17e05feb9dda0565d433c3e0d1	testing/lisp/test-ob-shell.el

applying [1/7] https://list.orgmode.org/orgmode/18555580d75.d7b471f9370716.1497263973038999899@excalamus.com/
diff --git a/testing/lisp/test-ob-shell.el b/testing/lisp/test-ob-shell.el
index b0d9beff4..816e93ac5 100644

Checking patch testing/lisp/test-ob-shell.el...
Applied patch testing/lisp/test-ob-shell.el cleanly.

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100644 816e93ac5c51b8ff7ed70409ee3a098a075c4e95	testing/lisp/test-ob-shell.el

applying [2/7] https://list.orgmode.org/orgmode/18555580d75.d7b471f9370716.1497263973038999899@excalamus.com/
diff --git a/testing/lisp/test-ob-shell.el b/testing/lisp/test-ob-shell.el
index 816e93ac5..625dc64b9 100644

Checking patch testing/lisp/test-ob-shell.el...
Applied patch testing/lisp/test-ob-shell.el cleanly.

skipping https://list.orgmode.org/orgmode/1853354beb4.fce54d8d902653.6359367327256505471@excalamus.com/ for 625dc64b9
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100644 625dc64b9d1a66c9897efaaf829e6a0113d40043	testing/lisp/test-ob-shell.el

applying [3/7] https://list.orgmode.org/orgmode/18555580d75.d7b471f9370716.1497263973038999899@excalamus.com/
diff --git a/testing/lisp/test-ob-shell.el b/testing/lisp/test-ob-shell.el
index 625dc64b9..54b6d5a6f 100644


applying [4/7] https://list.orgmode.org/orgmode/18555580d75.d7b471f9370716.1497263973038999899@excalamus.com/
diff --git a/testing/lisp/test-ob-shell.el b/testing/lisp/test-ob-shell.el
index 54b6d5a6f..df32b8aa7 100644


applying [5/7] https://list.orgmode.org/orgmode/18555580d75.d7b471f9370716.1497263973038999899@excalamus.com/
diff --git a/testing/lisp/test-ob-shell.el b/testing/lisp/test-ob-shell.el
index df32b8aa7..4c70c07fb 100644


applying [6/7] https://list.orgmode.org/orgmode/18555580d75.d7b471f9370716.1497263973038999899@excalamus.com/
diff --git a/testing/lisp/test-ob-shell.el b/testing/lisp/test-ob-shell.el
index 4c70c07fb..5c77b088b 100644


applying [7/7] https://list.orgmode.org/orgmode/18555580d75.d7b471f9370716.1497263973038999899@excalamus.com/
diff --git a/testing/lisp/test-ob-shell.el b/testing/lisp/test-ob-shell.el
index 5c77b088b..a1cacdc16 100644

Checking patch testing/lisp/test-ob-shell.el...
Applied patch testing/lisp/test-ob-shell.el cleanly.
Checking patch testing/lisp/test-ob-shell.el...
Applied patch testing/lisp/test-ob-shell.el cleanly.
Checking patch testing/lisp/test-ob-shell.el...
Applied patch testing/lisp/test-ob-shell.el cleanly.
Checking patch testing/lisp/test-ob-shell.el...
Applied patch testing/lisp/test-ob-shell.el cleanly.
Checking patch testing/lisp/test-ob-shell.el...
Applied patch testing/lisp/test-ob-shell.el cleanly.

index at:
100644 a1cacdc164d4f374de34fd3bfa83b404e17d7cb1	testing/lisp/test-ob-shell.el

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