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;;; haskell-utils-tests.el --- Tests for Haskell utilities package -*- lexical-binding: t -*-
;; Copyright © 2016 Arthur Fayzrakhmanov. All rights reserved.
;; This file is part of haskell-mode package.
;; You can contact with authors using GitHub issue tracker:
;; https://github.com/haskell/haskell-mode/issues
;; This file 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, or (at your option)
;; any later version.
;; This file 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 GNU Emacs; see the file COPYING. If not, write to
;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;; Commentary:
;; This package provides regression tests for haskell-utils package.
;;; Code:
(require 'ert)
(require 'haskell-test-utils)
(require 'haskell-utils)
(ert-deftest simple-import-parse ()
(should (equal "A.B.C"
(with-temp-buffer
(insert-lines "import A.B.C")
(goto-char (point-min))
(forward-line 0)
(haskell-utils-parse-import-statement-at-point)))))
(ert-deftest qualified-import-parse ()
(should (equal "A.B.C"
(with-temp-buffer
(insert-lines "import qualified A.B.C")
(goto-char (point-min))
(forward-line 0)
(haskell-utils-parse-import-statement-at-point)))))
(ert-deftest qualified-as-import-parse ()
(should (equal "AAA.Bc.Cx"
(with-temp-buffer
(insert-lines "import qualified AAA.Bc.Cx as Something")
(goto-char (point-min))
(forward-line 0)
(haskell-utils-parse-import-statement-at-point)))))
(ert-deftest international-characters-import-parse ()
(should (equal "Żółć"
(with-temp-buffer
(insert-lines "import Żółć")
(goto-char (point-min))
(forward-line 0)
(haskell-utils-parse-import-statement-at-point)))))
(ert-deftest commented-out-import-parse ()
(should (equal nil
(with-temp-buffer
(insert-lines "-- import Nothing")
(goto-char (point-min))
(forward-line 0)
(haskell-utils-parse-import-statement-at-point)))))
(ert-deftest non-import-import-parse ()
(should (equal nil
(with-temp-buffer
(insert-lines "something import Nothing")
(goto-char (point-min))
(forward-line 0)
(haskell-utils-parse-import-statement-at-point)))))
(ert-deftest many-spaces-import-parse ()
(should (equal "M"
(with-temp-buffer
(insert-lines "\t import\t qualified \t\tM\tas G")
(goto-char (point-min))
(forward-line 0)
(haskell-utils-parse-import-statement-at-point)))))
(ert-deftest using-underscores-import-parse ()
(should (equal "Module_1.S_3_3_"
(with-temp-buffer
(insert-lines "import Module_1.S_3_3_")
(goto-char (point-min))
(forward-line 0)
(haskell-utils-parse-import-statement-at-point)))))
(ert-deftest slightly-malformed-import-parse ()
(should (equal "q.Module...qwerqwe..."
(with-temp-buffer
(insert-lines "import q.Module...qwerqwe...")
(goto-char (point-min))
(forward-line 0)
(haskell-utils-parse-import-statement-at-point)))))
(ert-deftest package-import-parse ()
(should (equal "B"
(with-temp-buffer
(insert-lines "import \"package-1.2.3\" B")
(goto-char (point-min))
(forward-line 0)
(haskell-utils-parse-import-statement-at-point)))))
(ert-deftest safe-haskell-import-parse ()
(should (equal "B"
(with-temp-buffer
(insert-lines "import safe B")
(goto-char (point-min))
(forward-line 0)
(haskell-utils-parse-import-statement-at-point)))))
(ert-deftest full-import-parse ()
(should (equal "Data.Char.Unicode_v_7"
(with-temp-buffer
(insert-lines "import safe qualified \"unicode-7.0\" Data.Char.Unicode_v_7 as U (func)")
(goto-char (point-min))
(forward-line 0)
(haskell-utils-parse-import-statement-at-point)))))
(ert-deftest type-at-command-composition ()
"Test `haskell-utils-compose-type-at-command'.
Test only position conversion to line and column numbers, do not
test last string compontent, it is used in `:type-at` command to
provide user friendly output only and could be any string, even
empty one. Very likely the way how its composed for multilne
strings will change in future."
(with-temp-buffer
(insert-lines "module A where"
""
"int :: Int"
"int = 369"
""
"act ="
" do print int"
" return int")
(goto-char (point-min))
(let (test-a-points
test-b-points
test-a-result
test-b-result)
;; go to third line, e.g. `int` definition
(forward-line 3)
(setq test-a-points (point))
;; go to at the end of `int` definition, i.e. point stands at whitespace
(forward-char 3)
(setq test-a-points `(,test-a-points . ,(point)))
(goto-char (line-beginning-position))
;; go to do-block line
(forward-line 3)
;; go to `do` keyword beginning
(forward-char 2)
(setq test-b-points (point))
;; go to the end of do-block
(goto-char (point-max))
(setq test-b-points `(,test-b-points . ,(point)))
(setq test-a-result
(haskell-utils-compose-type-at-command test-a-points))
(setq test-b-result
(haskell-utils-compose-type-at-command test-b-points))
(should (string-prefix-p ":type-at nil 4 1 4 4" test-a-result))
(should (string-prefix-p ":type-at nil 7 3 8 16" test-b-result)))))
(ert-deftest parse-repl-response ()
"Test `haskell-utils-repl-response-error-status' function."
(let* ((t1-str "unknown command ':type-at'\nuse :? for help.")
(t2-str "\n<interactive>:3:5: Not in scope: ‘x’")
(t3-str "Couldn't guess that module name. Does it exist?")
(t4-str "Hello World!")
(t5-str " ")
(t6-str "")
(t7-str "\n\n\n\n")
(r1 (haskell-utils-repl-response-error-status t1-str))
(r2 (haskell-utils-repl-response-error-status t2-str))
(r3 (haskell-utils-repl-response-error-status t3-str))
(r4 (haskell-utils-repl-response-error-status t4-str))
(r5 (haskell-utils-repl-response-error-status t5-str))
(r6 (haskell-utils-repl-response-error-status t6-str))
(r7 (haskell-utils-repl-response-error-status t7-str)))
(should (equal r1 'unknown-command))
(should (equal r2 'interactive-error))
(should (equal r3 'option-missing))
(should (equal r4 'no-error))
(should (equal r5 'no-error))
(should (equal r6 'no-error))
(should (equal r7 'no-error))))
(ert-deftest reduce-strign ()
"Test `haskell-utils-reduce-strign' command.
Whitespace sequences at beginning of lines should be replaced
with single whitespace, all newline characters should be
removed."
(should (string-equal "" (haskell-utils-reduce-string "\n")))
(should (string-equal "" (haskell-utils-reduce-string "\r\n")))
(should (string-equal " " (haskell-utils-reduce-string " \n")))
(should (string-equal
"TestTest"
(haskell-utils-reduce-string "Test\nTest")))
(should (string-equal
"Test Test"
(haskell-utils-reduce-string "Test\n Test")))
(should (string-equal
" Test Test"
(haskell-utils-reduce-string " Test\r\n Test")))
(should (string-equal
" TestTest"
(haskell-utils-reduce-string " Test\r\nTest")))
(should (string-equal
" TestTest Test test"
(haskell-utils-reduce-string " Test\r\nTest\n Test test"))))
(ert-deftest post-command-hooks ()
"Test commands related `haskell-utils-async-post-command-flag'.
Tests flag updates and `post-command-hook' cleanup."
(with-temp-switch-to-buffer
;; set some random value to flag to test that it will be reset
(setq haskell-utils-async-post-command-flag "non nil")
(haskell-utils-async-watch-changes)
;; now flag should be empty
(should (null haskell-utils-async-post-command-flag))
;; execute some commands
(save-excursion (insert "Hello World!"))
(execute-kbd-macro (kbd "SPC"))
;; now flag should not be empty
(should (not (null haskell-utils-async-post-command-flag)))
;; check that hook was installed
(should (cl-member #'haskell-utils-async-update-post-command-flag
post-command-hook
:test #'equal))
;; check that flag was cleaned up
(haskell-utils-async-stop-watching-changes (current-buffer))
(should (null haskell-utils-async-post-command-flag))
;; check that hook was removed
(should (not (cl-member #'haskell-utils-async-update-post-command-flag
post-command-hook
:test #'equal)))))
;;; haskell-utils-tests.el ends here
|
