449 lines
18 KiB
EmacsLisp
449 lines
18 KiB
EmacsLisp
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;;
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;; %CopyrightBegin%
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;;
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;; Copyright Ericsson AB 2009-2010. All Rights Reserved.
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;;
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;; The contents of this file are subject to the Erlang Public License,
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;; Version 1.1, (the "License"); you may not use this file except in
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;; compliance with the License. You should have received a copy of the
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;; Erlang Public License along with this software. If not, it can be
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;; retrieved online at http://www.erlang.org/.
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;;
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;; Software distributed under the License is distributed on an "AS IS"
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;; basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
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;; the License for the specific language governing rights and limitations
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;; under the License.
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;;
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;; %CopyrightEnd%
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;;;
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;;; Purpose: Provide EUnit utilities.
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;;;
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;;; Author: Klas Johansson
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(eval-when-compile
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(require 'cl))
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(defvar erlang-eunit-src-candidate-dirs '("../src" ".")
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"*Name of directories which to search for source files matching
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an EUnit test file. The first directory in the list will be used,
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if there is no match.")
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(defvar erlang-eunit-test-candidate-dirs '("../test" ".")
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"*Name of directories which to search for EUnit test files matching
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a source file. The first directory in the list will be used,
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if there is no match.")
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(defvar erlang-eunit-autosave nil
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"*Set to non-nil to automtically save unsaved buffers before running tests.
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This is useful, reducing the save-compile-load-test cycle to one keychord.")
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(defvar erlang-eunit-recent-info '((mode . nil) (module . nil) (test . nil) (cover . nil))
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"Info about the most recent running of an EUnit test representation.")
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;;;
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;;; Switch between src/EUnit test buffers
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;;;
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(defun erlang-eunit-toggle-src-and-test-file-other-window ()
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"Switch to the src file if the EUnit test file is the current
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buffer and vice versa"
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(interactive)
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(if (erlang-eunit-test-file-p buffer-file-name)
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(erlang-eunit-open-src-file-other-window buffer-file-name)
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(erlang-eunit-open-test-file-other-window buffer-file-name)))
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;;;
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;;; Open the EUnit test file which corresponds to a src file
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;;;
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(defun erlang-eunit-open-test-file-other-window (src-file-path)
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"Open the EUnit test file which corresponds to a src file"
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(find-file-other-window (erlang-eunit-test-filename src-file-path)))
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;;;
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;;; Open the src file which corresponds to the an EUnit test file
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;;;
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(defun erlang-eunit-open-src-file-other-window (test-file-path)
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"Open the src file which corresponds to the an EUnit test file"
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(find-file-other-window (erlang-eunit-src-filename test-file-path)))
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;;; Return the name and path of the EUnit test file
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;;, (input may be either the source filename itself or the EUnit test filename)
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(defun erlang-eunit-test-filename (file-path)
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(if (erlang-eunit-test-file-p file-path)
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file-path
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(erlang-eunit-rewrite-filename file-path erlang-eunit-test-candidate-dirs)))
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;;; Return the name and path of the source file
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;;, (input may be either the source filename itself or the EUnit test filename)
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(defun erlang-eunit-src-filename (file-path)
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(if (erlang-eunit-src-file-p file-path)
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file-path
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(erlang-eunit-rewrite-filename file-path erlang-eunit-src-candidate-dirs)))
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;;; Rewrite a filename from the src or test filename to the other
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(defun erlang-eunit-rewrite-filename (orig-file-path candidate-dirs)
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(or (erlang-eunit-locate-buddy orig-file-path candidate-dirs)
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(erlang-eunit-buddy-file-path orig-file-path (car candidate-dirs))))
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;;; Search for a file's buddy file (a source file's EUnit test file,
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;;; or an EUnit test file's source file) in a list of candidate
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;;; directories.
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(defun erlang-eunit-locate-buddy (orig-file-path candidate-dirs)
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(when candidate-dirs
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(let ((buddy-file-path (erlang-eunit-buddy-file-path
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orig-file-path
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(car candidate-dirs))))
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(if (file-readable-p buddy-file-path)
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buddy-file-path
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(erlang-eunit-locate-buddy orig-file-path (cdr candidate-dirs))))))
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(defun erlang-eunit-buddy-file-path (orig-file-path buddy-dir-name)
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(let* ((orig-dir-name (file-name-directory orig-file-path))
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(buddy-dir-name (file-truename
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(filename-join orig-dir-name buddy-dir-name)))
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(buddy-base-name (erlang-eunit-buddy-basename orig-file-path)))
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(filename-join buddy-dir-name buddy-base-name)))
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;;; Return the basename of the buddy file:
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;;; /tmp/foo/src/x.erl --> x_tests.erl
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;;; /tmp/foo/test/x_tests.erl --> x.erl
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(defun erlang-eunit-buddy-basename (file-path)
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(let ((src-module-name (erlang-eunit-source-module-name file-path)))
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(cond
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((erlang-eunit-src-file-p file-path)
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(concat src-module-name "_tests.erl"))
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((erlang-eunit-test-file-p file-path)
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(concat src-module-name ".erl")))))
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;;; Checks whether a file is a source file or not
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(defun erlang-eunit-src-file-p (file-path)
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(not (erlang-eunit-test-file-p file-path)))
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;;; Checks whether a file is a EUnit test file or not
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(defun erlang-eunit-test-file-p (file-path)
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(erlang-eunit-string-match-p "^\\(.+\\)_tests.erl$" file-path))
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;;; Return the module name of the source file
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;;; /tmp/foo/src/x.erl --> x
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;;; /tmp/foo/test/x_tests.erl --> x
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(defun erlang-eunit-source-module-name (file-path)
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(interactive)
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(let ((module-name (erlang-eunit-module-name file-path)))
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(if (string-match "^\\(.+\\)_tests$" module-name)
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(substring module-name (match-beginning 1) (match-end 1))
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module-name)))
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;;; Return the module name of the file
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;;; /tmp/foo/src/x.erl --> x
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;;; /tmp/foo/test/x_tests.erl --> x_tests
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(defun erlang-eunit-module-name (file-path)
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(interactive)
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(file-name-sans-extension (file-name-nondirectory file-path)))
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;;; Older emacsen don't have string-match-p.
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(defun erlang-eunit-string-match-p (regexp string &optional start)
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(if (fboundp 'string-match-p) ;; appeared in emacs 23
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(string-match-p regexp string start)
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(save-match-data ;; fallback for earlier versions of emacs
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(string-match regexp string start))))
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;;; Join filenames
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(defun filename-join (dir file)
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(if (or (= (elt file 0) ?/)
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(= (car (last (append dir nil))) ?/))
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(concat dir file)
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(concat dir "/" file)))
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;;; Get info about the most recent running of EUnit
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(defun erlang-eunit-recent (key)
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(cdr (assq key erlang-eunit-recent-info)))
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;;; Record info about the most recent running of EUnit
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;;; Known modes are 'module-mode and 'test-mode
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(defun erlang-eunit-record-recent (mode module test)
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(setcdr (assq 'mode erlang-eunit-recent-info) mode)
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(setcdr (assq 'module erlang-eunit-recent-info) module)
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(setcdr (assq 'test erlang-eunit-recent-info) test))
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;;; Record whether the most recent running of EUnit included cover
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;;; compilation
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(defun erlang-eunit-record-recent-compile (under-cover)
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(setcdr (assq 'cover erlang-eunit-recent-info) under-cover))
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;;; Determine options for EUnit.
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(defun erlang-eunit-opts ()
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(if current-prefix-arg ", [verbose]" ""))
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;;; Determine current test function
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(defun erlang-eunit-current-test ()
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(save-excursion
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(erlang-end-of-function 1)
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(erlang-beginning-of-function 1)
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(erlang-name-of-function)))
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(defun erlang-eunit-simple-test-p (test-name)
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(if (erlang-eunit-string-match-p "^\\(.+\\)_test$" test-name) t nil))
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(defun erlang-eunit-test-generator-p (test-name)
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(if (erlang-eunit-string-match-p "^\\(.+\\)_test_$" test-name) t nil))
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;;; Run one EUnit test
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(defun erlang-eunit-run-test (module-name test-name)
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(let ((command
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(cond ((erlang-eunit-simple-test-p test-name)
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(format "eunit:test({%s, %s}%s)."
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module-name test-name (erlang-eunit-opts)))
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((erlang-eunit-test-generator-p test-name)
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(format "eunit:test({generator, %s, %s}%s)."
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module-name test-name (erlang-eunit-opts)))
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(t (format "%% WARNING: '%s' is not a test function" test-name)))))
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(erlang-eunit-record-recent 'test-mode module-name test-name)
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(erlang-eunit-inferior-erlang-send-command command)))
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;;; Run EUnit tests for the current module
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(defun erlang-eunit-run-module-tests (module-name)
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(let ((command (format "eunit:test(%s%s)." module-name (erlang-eunit-opts))))
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(erlang-eunit-record-recent 'module-mode module-name nil)
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(erlang-eunit-inferior-erlang-send-command command)))
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(defun erlang-eunit-compile-and-run-recent ()
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"Compile the source and test files and repeat the most recent EUnit test run.
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With prefix arg, compiles for debug and runs tests with the verbose flag set."
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(interactive)
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(case (erlang-eunit-recent 'mode)
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('test-mode
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(erlang-eunit-compile-and-test
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'erlang-eunit-run-test (list (erlang-eunit-recent 'module)
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(erlang-eunit-recent 'test))))
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('module-mode
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(erlang-eunit-compile-and-test
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'erlang-eunit-run-module-tests (list (erlang-eunit-recent 'module))
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(erlang-eunit-recent 'cover)))
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(t (error "EUnit has not yet been run. Please run a test first."))))
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(defun erlang-eunit-cover-compile ()
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"Cover compile current module."
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(interactive)
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(let* ((erlang-compile-extra-opts
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(append (list 'debug_info) erlang-compile-extra-opts))
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(module-name
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(erlang-add-quotes-if-needed
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(erlang-eunit-module-name buffer-file-name)))
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(compile-command
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(format "cover:compile_beam(%s)." module-name)))
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(erlang-compile)
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(if (erlang-eunit-last-compilation-successful-p)
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(erlang-eunit-inferior-erlang-send-command compile-command))))
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(defun erlang-eunit-analyze-coverage ()
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"Analyze the data collected by cover tool for the module in the
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current buffer.
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Assumes that the module has been cover compiled prior to this
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call. This function will do two things: print the number of
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covered and uncovered functions in the erlang shell and display a
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new buffer called *<module name> coverage* which shows the source
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code along with the coverage analysis results."
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(interactive)
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(let* ((module-name (erlang-add-quotes-if-needed
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(erlang-eunit-module-name buffer-file-name)))
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(tmp-filename (make-temp-file "cover"))
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(analyze-command (format "cover:analyze_to_file(%s, \"%s\"). "
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module-name tmp-filename))
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(buf-name (format "*%s coverage*" module-name)))
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(erlang-eunit-inferior-erlang-send-command analyze-command)
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;; The purpose of the following snippet is to get the result of the
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;; analysis from a file into a new buffer (or an old, if one with
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;; the specified name already exists). Also we want the erlang-mode
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;; *and* view-mode to be enabled.
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(save-excursion
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(let ((buf (get-buffer-create (format "*%s coverage*" module-name))))
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(set-buffer buf)
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(setq buffer-read-only nil)
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(insert-file-contents tmp-filename nil nil nil t)
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(if (= (buffer-size) 0)
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(kill-buffer buf)
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;; FIXME: this would be a good place to enable (emacs-mode)
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;; to get some nice syntax highlighting in the
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;; coverage report, but it doesn't play well with
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;; flymake. Leave it off for now.
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(view-buffer buf))))
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(delete-file tmp-filename)))
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(defun erlang-eunit-compile-and-run-current-test ()
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"Compile the source and test files and run the current EUnit test.
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With prefix arg, compiles for debug and runs tests with the verbose flag set."
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(interactive)
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(let ((module-name (erlang-add-quotes-if-needed
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(erlang-eunit-module-name buffer-file-name)))
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(test-name (erlang-eunit-current-test)))
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(erlang-eunit-compile-and-test
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'erlang-eunit-run-test (list module-name test-name))))
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(defun erlang-eunit-compile-and-run-module-tests ()
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"Compile the source and test files and run all EUnit tests in the module.
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With prefix arg, compiles for debug and runs tests with the verbose flag set."
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(interactive)
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(let ((module-name (erlang-add-quotes-if-needed
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(erlang-eunit-source-module-name buffer-file-name))))
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(erlang-eunit-compile-and-test
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'erlang-eunit-run-module-tests (list module-name))))
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;;; Compile source and EUnit test file and finally run EUnit tests for
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;;; the current module
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(defun erlang-eunit-compile-and-test (test-fun test-args &optional under-cover)
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"Compile the source and test files and run the EUnit test suite.
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If under-cover is set to t, the module under test is compile for
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code coverage analysis. If under-cover is left out or not set,
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coverage analysis is disabled. The result of the code coverage
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is both printed to the erlang shell (the number of covered vs
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uncovered functions in a module) and written to a buffer called
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*<module> coverage* (which shows the source code for the module
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and the number of times each line is covered).
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With prefix arg, compiles for debug and runs tests with the verbose flag set."
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(erlang-eunit-record-recent-compile under-cover)
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(let ((src-filename (erlang-eunit-src-filename buffer-file-name))
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(test-filename (erlang-eunit-test-filename buffer-file-name)))
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;; The purpose of out-maneuvering `save-some-buffers', as is done
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;; below, is to ask the question about saving buffers only once,
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;; instead of possibly several: one for each file to compile,
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;; for instance for both x.erl and x_tests.erl.
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(save-some-buffers erlang-eunit-autosave)
|
||
|
|
(flet ((save-some-buffers (&optional any) nil))
|
||
|
|
|
||
|
|
;; Compilation of the source file is mandatory (the file must
|
||
|
|
;; exist, otherwise the procedure is aborted). Compilation of the
|
||
|
|
;; test file on the other hand, is optional, since eunit tests may
|
||
|
|
;; be placed in the source file instead. Any compilation error
|
||
|
|
;; will prevent the subsequent steps to be run (hence the `and')
|
||
|
|
(and (erlang-eunit-compile-file src-filename under-cover)
|
||
|
|
(if (file-readable-p test-filename)
|
||
|
|
(erlang-eunit-compile-file test-filename)
|
||
|
|
t)
|
||
|
|
(apply test-fun test-args)
|
||
|
|
(if under-cover
|
||
|
|
(save-excursion
|
||
|
|
(set-buffer (find-file-noselect src-filename))
|
||
|
|
(erlang-eunit-analyze-coverage)))))))
|
||
|
|
|
||
|
|
(defun erlang-eunit-compile-and-run-module-tests-under-cover ()
|
||
|
|
"Compile the source and test files and run the EUnit test suite and measure
|
||
|
|
code coverage.
|
||
|
|
|
||
|
|
With prefix arg, compiles for debug and runs tests with the verbose flag set."
|
||
|
|
(interactive)
|
||
|
|
(let ((module-name (erlang-add-quotes-if-needed
|
||
|
|
(erlang-eunit-source-module-name buffer-file-name))))
|
||
|
|
(erlang-eunit-compile-and-test
|
||
|
|
'erlang-eunit-run-module-tests (list module-name) t)))
|
||
|
|
|
||
|
|
(defun erlang-eunit-compile-file (file-path &optional under-cover)
|
||
|
|
(if (file-readable-p file-path)
|
||
|
|
(save-excursion
|
||
|
|
(set-buffer (find-file-noselect file-path))
|
||
|
|
;; In order to run a code coverage analysis on a
|
||
|
|
;; module, we have two options:
|
||
|
|
;;
|
||
|
|
;; * either compile the module with cover:compile instead of the
|
||
|
|
;; regular compiler
|
||
|
|
;;
|
||
|
|
;; * or first compile the module with the regular compiler (but
|
||
|
|
;; *with* debug_info) and then compile it for coverage
|
||
|
|
;; analysis using cover:compile_beam.
|
||
|
|
;;
|
||
|
|
;; We could accomplish the first by changing the
|
||
|
|
;; erlang-compile-erlang-function to cover:compile, but there's
|
||
|
|
;; a risk that that's used for other purposes. Therefore, a
|
||
|
|
;; safer alternative (although with more steps) is to add
|
||
|
|
;; debug_info to the list of compiler options and go for the
|
||
|
|
;; second alternative.
|
||
|
|
(if under-cover
|
||
|
|
(erlang-eunit-cover-compile)
|
||
|
|
(erlang-compile))
|
||
|
|
(erlang-eunit-last-compilation-successful-p))
|
||
|
|
(let ((msg (format "Could not read %s" file-path)))
|
||
|
|
(erlang-eunit-inferior-erlang-send-command
|
||
|
|
(format "%% WARNING: %s" msg))
|
||
|
|
(error msg))))
|
||
|
|
|
||
|
|
(defun erlang-eunit-last-compilation-successful-p ()
|
||
|
|
(save-excursion
|
||
|
|
(set-buffer inferior-erlang-buffer)
|
||
|
|
(goto-char compilation-parsing-end)
|
||
|
|
(erlang-eunit-all-list-elems-fulfill-p
|
||
|
|
(lambda (re) (let ((continue t)
|
||
|
|
(result t))
|
||
|
|
(while continue ; ignore warnings, stop at errors
|
||
|
|
(if (re-search-forward re (point-max) t)
|
||
|
|
(if (erlang-eunit-is-compilation-warning)
|
||
|
|
t
|
||
|
|
(setq result nil)
|
||
|
|
(setq continue nil))
|
||
|
|
(setq result t)
|
||
|
|
(setq continue nil)))
|
||
|
|
result))
|
||
|
|
(mapcar (lambda (e) (car e)) erlang-error-regexp-alist))))
|
||
|
|
|
||
|
|
(defun erlang-eunit-is-compilation-warning ()
|
||
|
|
(erlang-eunit-string-match-p
|
||
|
|
"[0-9]+: Warning:"
|
||
|
|
(buffer-substring (line-beginning-position) (line-end-position))))
|
||
|
|
|
||
|
|
(defun erlang-eunit-all-list-elems-fulfill-p (pred list)
|
||
|
|
(let ((matches-p t))
|
||
|
|
(while (and list matches-p)
|
||
|
|
(if (not (funcall pred (car list)))
|
||
|
|
(setq matches-p nil))
|
||
|
|
(setq list (cdr list)))
|
||
|
|
matches-p))
|
||
|
|
|
||
|
|
;;; Evaluate a command in an erlang buffer
|
||
|
|
(defun erlang-eunit-inferior-erlang-send-command (command)
|
||
|
|
"Evaluate a command in an erlang buffer."
|
||
|
|
(interactive "P")
|
||
|
|
(inferior-erlang-prepare-for-input)
|
||
|
|
(inferior-erlang-send-command command)
|
||
|
|
(sit-for 0) ;; redisplay
|
||
|
|
(inferior-erlang-wait-prompt))
|
||
|
|
|
||
|
|
|
||
|
|
;;;====================================================================
|
||
|
|
;;; Key bindings
|
||
|
|
;;;====================================================================
|
||
|
|
|
||
|
|
(defconst erlang-eunit-key-bindings
|
||
|
|
'(("\C-c\C-et" erlang-eunit-toggle-src-and-test-file-other-window)
|
||
|
|
("\C-c\C-ek" erlang-eunit-compile-and-run-module-tests)
|
||
|
|
("\C-c\C-ej" erlang-eunit-compile-and-run-current-test)
|
||
|
|
("\C-c\C-el" erlang-eunit-compile-and-run-recent)
|
||
|
|
("\C-c\C-ec" erlang-eunit-compile-and-run-module-tests-under-cover)
|
||
|
|
("\C-c\C-ev" erlang-eunit-cover-compile)
|
||
|
|
("\C-c\C-ea" erlang-eunit-analyze-coverage)))
|
||
|
|
|
||
|
|
(defun erlang-eunit-add-key-bindings ()
|
||
|
|
(dolist (binding erlang-eunit-key-bindings)
|
||
|
|
(erlang-eunit-bind-key (car binding) (cadr binding))))
|
||
|
|
|
||
|
|
(defun erlang-eunit-bind-key (key function)
|
||
|
|
(erlang-eunit-ensure-keymap-for-key key)
|
||
|
|
(local-set-key key function))
|
||
|
|
|
||
|
|
(defun erlang-eunit-ensure-keymap-for-key (key-seq)
|
||
|
|
(let ((prefix-keys (butlast (append key-seq nil)))
|
||
|
|
(prefix-seq ""))
|
||
|
|
(while prefix-keys
|
||
|
|
(setq prefix-seq (concat prefix-seq (make-string 1 (car prefix-keys))))
|
||
|
|
(setq prefix-keys (cdr prefix-keys))
|
||
|
|
(if (not (keymapp (lookup-key (current-local-map) prefix-seq)))
|
||
|
|
(local-set-key prefix-seq (make-sparse-keymap))))))
|
||
|
|
|
||
|
|
(add-hook 'erlang-mode-hook 'erlang-eunit-add-key-bindings)
|
||
|
|
|
||
|
|
|
||
|
|
(provide 'erlang-eunit)
|
||
|
|
;; erlang-eunit ends here
|