Extract minitest--post-command

Extracts a function, minitest-post-command that generates the
post_command string passed to the minitest -n flag.

minitest.el

@@ -135,11 +135,13 @@ The current directory is assumed to be the project's root otherwise."
   (if (minitest--extract-str)
       (let* ((cmd (match-string 1))
              (str (match-string 2))
-             (post_command (cond ((equal "test" cmd) (format "test_%s" (replace-regexp-in-string "[\s#:]" "_" str)))
-                                 ((equal "it" cmd) str))))
+             (post_command (minitest--post-command cmd str)))
         (minitest--file-command (minitest--test-name-flag post_command)))
     (error "No test found. Make sure you are on a file that has `def test_foo` or `test \"foo\"`")))
 
+(defun minitest--post-command (cmd str)
+  (format "test_%s" (replace-regexp-in-string "[\s#:]" "_" str)))
+
 (defun minitest-rerun ()
   "Run the last command"
   (interactive)

test/minitest-unit-test.el

@@ -47,6 +47,12 @@
     (minitest--extract-str)
     (should (equal (match-string 2) "hello"))))
 
+(ert-deftest test-minitest--post-command ()
+  (defvar test-description "#method_name behavior of Module::Class")
+  (defvar method-name "test__method_name_behavior_of_Module__Class")
+  (should (equal method-name (minitest--post-command "test" test-description)))
+  (should (equal method-name (minitest--post-command "it" test-description))))
+
 (ert-deftest test-minitest-test-extract-str-with-block ()
   (with-temp-buffer
     (insert "test \"hello\" do\nend")