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-rw-r--r--lib/tools/emacs/erlang-eunit.el220
1 files changed, 163 insertions, 57 deletions
diff --git a/lib/tools/emacs/erlang-eunit.el b/lib/tools/emacs/erlang-eunit.el
index 970afe2e9f..803c26c5b1 100644
--- a/lib/tools/emacs/erlang-eunit.el
+++ b/lib/tools/emacs/erlang-eunit.el
@@ -23,8 +23,15 @@
(eval-when-compile
(require 'cl))
-(defvar erlang-eunit-separate-src-and-test-directories t
- "*Whether or not to keep source and EUnit test files in separate directories")
+(defvar erlang-eunit-src-candidate-dirs '("../src" ".")
+ "*Name of directories which to search for source files matching
+an EUnit test file. The first directory in the list will be used,
+if there is no match.")
+
+(defvar erlang-eunit-test-candidate-dirs '("../test" ".")
+ "*Name of directories which to search for EUnit test files matching
+a source file. The first directory in the list will be used,
+if there is no match.")
;;;
;;; Switch between src/EUnit test buffers
@@ -55,37 +62,55 @@ buffer and vice versa"
;;; Return the name and path of the EUnit test file
;;, (input may be either the source filename itself or the EUnit test filename)
(defun erlang-eunit-test-filename (file-path)
- (erlang-eunit-rewrite-filename file-path "test" "_tests"))
+ (if (erlang-eunit-test-file-p file-path)
+ file-path
+ (erlang-eunit-rewrite-filename file-path erlang-eunit-test-candidate-dirs)))
;;; Return the name and path of the source file
;;, (input may be either the source filename itself or the EUnit test filename)
(defun erlang-eunit-src-filename (file-path)
- (erlang-eunit-rewrite-filename file-path "src" ""))
+ (if (erlang-eunit-src-file-p file-path)
+ file-path
+ (erlang-eunit-rewrite-filename file-path erlang-eunit-src-candidate-dirs)))
;;; Rewrite a filename from the src or test filename to the other
-(defun erlang-eunit-rewrite-filename (orig-file-path dest-dirname dest-suffix)
- (let* ((root-dir-name (erlang-eunit-file-root-dir-name orig-file-path))
- (src-module-name (erlang-eunit-source-module-name orig-file-path))
- (dest-base-name (concat src-module-name dest-suffix ".erl"))
- (dest-dir-name-1 (file-name-directory orig-file-path))
- (dest-dir-name-2 (filename-join root-dir-name dest-dirname))
- (dest-file-name-1 (filename-join dest-dir-name-1 dest-base-name))
- (dest-file-name-2 (filename-join dest-dir-name-2 dest-base-name)))
- ;; This function tries to be a bit intelligent:
- ;; * if there already is a test (or source) file in the same
- ;; directory as a source (or test) file, it'll be picked
- ;; * if there already is a test (or source) file in a separate
- ;; test (or src) directory, it'll be picked
- ;; * otherwise it'll resort to whatever alternative (same or
- ;; separate directories) that the user has chosen
- (cond ((file-readable-p dest-file-name-1)
- dest-file-name-1)
- ((file-readable-p dest-file-name-2)
- dest-file-name-2)
- (erlang-eunit-separate-src-and-test-directories
- dest-file-name-2)
- (t
- dest-file-name-1))))
+(defun erlang-eunit-rewrite-filename (orig-file-path candidate-dirs)
+ (or (erlang-eunit-locate-buddy orig-file-path candidate-dirs)
+ (erlang-eunit-buddy-file-path orig-file-path (car candidate-dirs))))
+
+;;; Search for a file's buddy file (a source file's EUnit test file,
+;;; or an EUnit test file's source file) in a list of candidate
+;;; directories.
+(defun erlang-eunit-locate-buddy (orig-file-path candidate-dirs)
+ (when candidate-dirs
+ (let ((buddy-file-path (erlang-eunit-buddy-file-path
+ orig-file-path
+ (car candidate-dirs))))
+ (if (file-readable-p buddy-file-path)
+ buddy-file-path
+ (erlang-eunit-locate-buddy orig-file-path (cdr candidate-dirs))))))
+
+(defun erlang-eunit-buddy-file-path (orig-file-path buddy-dir-name)
+ (let* ((orig-dir-name (file-name-directory orig-file-path))
+ (buddy-dir-name (file-truename
+ (filename-join orig-dir-name buddy-dir-name)))
+ (buddy-base-name (erlang-eunit-buddy-basename orig-file-path)))
+ (filename-join buddy-dir-name buddy-base-name)))
+
+;;; Return the basename of the buddy file:
+;;; /tmp/foo/src/x.erl --> x_tests.erl
+;;; /tmp/foo/test/x_tests.erl --> x.erl
+(defun erlang-eunit-buddy-basename (file-path)
+ (let ((src-module-name (erlang-eunit-source-module-name file-path)))
+ (cond
+ ((erlang-eunit-src-file-p file-path)
+ (concat src-module-name "_tests.erl"))
+ ((erlang-eunit-test-file-p file-path)
+ (concat src-module-name ".erl")))))
+
+;;; Checks whether a file is a source file or not
+(defun erlang-eunit-src-file-p (file-path)
+ (not (erlang-eunit-test-file-p file-path)))
;;; Checks whether a file is a EUnit test file or not
(defun erlang-eunit-test-file-p (file-path)
@@ -96,11 +121,10 @@ buffer and vice versa"
;;; /tmp/foo/test/x_tests.erl --> x
(defun erlang-eunit-source-module-name (file-path)
(interactive)
- (let* ((file-name (file-name-nondirectory file-path))
- (base-name (file-name-sans-extension file-name)))
- (if (string-match "^\\(.+\\)_tests$" base-name)
- (substring base-name (match-beginning 1) (match-end 1))
- base-name)))
+ (let ((module-name (erlang-eunit-module-name file-path)))
+ (if (string-match "^\\(.+\\)_tests$" module-name)
+ (substring module-name (match-beginning 1) (match-end 1))
+ module-name)))
;;; Return the module name of the file
;;; /tmp/foo/src/x.erl --> x
@@ -109,18 +133,6 @@ buffer and vice versa"
(interactive)
(file-name-sans-extension (file-name-nondirectory file-path)))
-;;; Return the directory name which is common to both src and test
-;;; /tmp/foo/src/x.erl --> /tmp/foo
-;;; /tmp/foo/test/x_tests.erl --> /tmp/foo
-(defun erlang-eunit-file-root-dir-name (file-path)
- (erlang-eunit-dir-parent-dirname (file-name-directory file-path)))
-
-;;; Return the parent directory name of a directory
-;;; /tmp/foo/ --> /tmp
-;;; /tmp/foo --> /tmp
-(defun erlang-eunit-dir-parent-dirname (dir-name)
- (file-name-directory (directory-file-name dir-name)))
-
;;; Older emacsen don't have string-match-p.
(defun erlang-eunit-string-match-p (regexp string &optional start)
(if (fboundp 'string-match-p) ;; appeared in emacs 23
@@ -164,7 +176,9 @@ buffer and vice versa"
((erlang-eunit-test-generator-p test-name)
(format "eunit:test({generator, %s, %s}%s)."
module-name test-name (erlang-eunit-opts)))
- (t (format "%% WARNING: '%s' is not a test function" test-name)))))
+ (t
+ (format "%% WARNING: '%s' is not a test function"
+ test-name)))))
(erlang-eunit-inferior-erlang-send-command command)))
;;; Run EUnit tests for the current module
@@ -174,6 +188,55 @@ buffer and vice versa"
(command (format "eunit:test(%s%s)." module-name (erlang-eunit-opts))))
(erlang-eunit-inferior-erlang-send-command command)))
+(defun erlang-eunit-cover-compile ()
+ "Cover compile current module."
+ (interactive)
+ (let* ((erlang-compile-extra-opts
+ (append (list 'debug_info) erlang-compile-extra-opts))
+ (module-name
+ (erlang-add-quotes-if-needed
+ (erlang-eunit-module-name buffer-file-name)))
+ (compile-command
+ (format "cover:compile_beam(%s)." module-name)))
+ (erlang-compile)
+ (if (erlang-eunit-last-compilation-successful-p)
+ (erlang-eunit-inferior-erlang-send-command compile-command))))
+
+(defun erlang-eunit-analyze-coverage ()
+ "Analyze the data collected by cover tool for the module in the
+current buffer.
+
+Assumes that the module has been cover compiled prior to this
+call. This function will do two things: print the number of
+covered and uncovered functions in the erlang shell and display a
+new buffer called *<module name> coverage* which shows the source
+code along with the coverage analysis results."
+ (interactive)
+ (let* ((module-name (erlang-add-quotes-if-needed
+ (erlang-eunit-module-name buffer-file-name)))
+ (tmp-filename (make-temp-file "cover"))
+ (analyze-command (format "cover:analyze_to_file(%s, \"%s\"). "
+ module-name tmp-filename))
+ (buf-name (format "*%s coverage*" module-name)))
+ (erlang-eunit-inferior-erlang-send-command analyze-command)
+ ;; The purpose of the following snippet is to get the result of the
+ ;; analysis from a file into a new buffer (or an old, if one with
+ ;; the specified name already exists). Also we want the erlang-mode
+ ;; *and* view-mode to be enabled.
+ (save-excursion
+ (let ((buf (get-buffer-create (format "*%s coverage*" module-name))))
+ (set-buffer buf)
+ (setq buffer-read-only nil)
+ (insert-file-contents tmp-filename nil nil nil t)
+ (if (= (buffer-size) 0)
+ (kill-buffer buf)
+ ;; FIXME: this would be a good place to enable (emacs-mode)
+ ;; to get some nice syntax highlighting in the
+ ;; coverage report, but it doesn't play well with
+ ;; flymake. Leave it off for now.
+ (view-buffer buf))))
+ (delete-file tmp-filename)))
+
(defun erlang-eunit-compile-and-run-current-test ()
"Compile the source and test files and run the current EUnit test.
@@ -190,7 +253,17 @@ With prefix arg, compiles for debug and runs tests with the verbose flag set."
;;; Compile source and EUnit test file and finally run EUnit tests for
;;; the current module
-(defun erlang-eunit-compile-and-test (run-tests)
+(defun erlang-eunit-compile-and-test (run-tests &optional under-cover)
+ "Compile the source and test files and run the EUnit test suite.
+
+If under-cover is set to t, the module under test is compile for
+code coverage analysis. If under-cover is left out or not set,
+coverage analysis is disabled. The result of the code coverage
+is both printed to the erlang shell (the number of covered vs
+uncovered functions in a module) and written to a buffer called
+*<module> coverage* (which shows the source code for the module
+and the number of times each line is covered).
+With prefix arg, compiles for debug and runs tests with the verbose flag set."
(let ((src-filename (erlang-eunit-src-filename buffer-file-name))
(test-filename (erlang-eunit-test-filename buffer-file-name)))
@@ -206,23 +279,53 @@ With prefix arg, compiles for debug and runs tests with the verbose flag set."
;; 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)
+ (and (erlang-eunit-compile-file src-filename under-cover)
(if (file-readable-p test-filename)
(erlang-eunit-compile-file test-filename)
t)
- (funcall run-tests)))))
+ (funcall run-tests)
+ (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)
+ (erlang-eunit-compile-and-test 'erlang-eunit-run-module-tests t))
-(defun erlang-eunit-compile-file (file-path)
+(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))
- (erlang-compile)
- (erlang-eunit-last-compilation-successful-p))
+ (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
+ (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)
@@ -231,7 +334,7 @@ With prefix arg, compiles for debug and runs tests with the verbose flag set."
(lambda (re) (let ((continue t)
(result t))
(while continue ; ignore warnings, stop at errors
- (if (re-search-forward re (point-max) t)
+ (if (re-search-forward re (point-max) t)
(if (erlang-eunit-is-compilation-warning)
t
(setq result nil)
@@ -242,7 +345,7 @@ With prefix arg, compiles for debug and runs tests with the verbose flag set."
(mapcar (lambda (e) (car e)) erlang-error-regexp-alist))))
(defun erlang-eunit-is-compilation-warning ()
- (erlang-eunit-string-match-p
+ (erlang-eunit-string-match-p
"[0-9]+: Warning:"
(buffer-substring (line-beginning-position) (line-end-position))))
@@ -271,7 +374,10 @@ With prefix arg, compiles for debug and runs tests with the verbose flag set."
(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-ej" erlang-eunit-compile-and-run-current-test)
+ ("\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)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-14 00:38:40 +0000