Merge pull request #309 from juergenhoetzel/fsi-tests

Add FSI tests

test/fsi-tests.el

@@ -0,0 +1,73 @@
+;;; fsi-tests.el --- Tests for F# interactive        -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2022  Jürgen Hötzel
+
+;; Author: Jürgen Hötzel <juergen@hoetzel.info>
+;; Keywords: processes
+
+;; 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/>.
+
+;;; Commentary:
+
+;; 
+
+;;; Code:
+
+(load "project")                        ;Emacs 27 workaround: https://github.com/joaotavora/eglot/issues/549
+(require 'buttercup)
+(require 'fsharp-mode)
+
+(defun fsi-tests-wait-for-regex (timeout regexp)
+  (while (and (> timeout 0) (not (progn (goto-char (point-min)) (search-forward-regexp regexp nil t))))
+    (message "[FSI Interactive] Waiting a bit...")
+    (accept-process-output (get-buffer-process (current-buffer)) 0.2)
+    (setq timeout (1- timeout))))
+
+
+(describe "F# interactive"
+          :before-all (run-fsharp inferior-fsharp-program)
+          :before-each (with-current-buffer (get-buffer inferior-fsharp-buffer-name)
+                         (comint-clear-buffer))
+          (it "can eval expressions"
+              (let ((fsharp-autosave-on-file-load t)
+                    (fsx-file (make-temp-file "fsi" nil ".fsx" "
+1 + 1;;
+")))
+                (with-current-buffer (find-file-noselect fsx-file)
+                  (fsharp-eval-region (point-min) (point-max))
+                  (with-current-buffer (get-buffer inferior-fsharp-buffer-name)
+                    (fsi-tests-wait-for-regex 25 "it: int = 2$")
+                    (let ((result (match-string-no-properties 0)))
+                      (expect result :to-equal "it: int = 2"))))))
+          (it "can load nuget references"
+              (let ((fsharp-autosave-on-file-load t)
+                    (timeout 50)
+                    (fsx-file (make-temp-file "fsi" nil ".fsx" "
+#r \"nuget: Newtonsoft.Json\";;
+open Newtonsoft.Json;;
+
+let o = {| X = 2; Y = \"Hello\" |};;
+
+printfn \"xxx:%s:xxx\" (JsonConvert.SerializeObject o);;")))
+                (with-current-buffer (find-file-noselect fsx-file)
+                  (fsharp-load-buffer-file)
+                  (with-current-buffer (get-buffer inferior-fsharp-buffer-name)
+                    (fsi-tests-wait-for-regex 25 "xxx:\\(.*\\):xxx")
+                    (let ((json-str (match-string-no-properties 1)))
+                      (unless json-str
+                        (warn "FSI output doesn't contain marker: %s" (buffer-substring-no-properties (point-min) (point-max))))
+                      (expect json-str :to-equal "{\"X\":2,\"Y\":\"Hello\"}")))))))
+
+(provide 'fsi-tests)
+;;; fsi-tests.el ends here