Yasnippet

emacs.org

@@ -591,6 +591,31 @@ Apparently all the cool kids have moved from auto-complete to Company
 these days. Should probably look into LSP at the same time. Maybe I'll
 go without for a bit first...
 
+** Yasnippet
+
+This is a really nice customisable completion system. For now I am
+avoiding external packages full of completions. Let's keep it lean and
+personalised.
+
+#+begin_src elisp
+  (use-package yasnippet
+    :hook ((python-mode . yas-minor-mode))
+    :config
+    (yas-recompile-all)
+    (yas-reload-all)
+    )
+#+end_src
+
+*** Snippets
+#+begin_src conf :tangle "emacs/.emacs.d/snippets/python-mode/import_numpy" :mkdirp yes
+# -*- mode: snippet -*-
+# name: import numpy
+# key: <inp
+# --
+import numpy as np
+$0
+#+end_src
+
 * File management
 
 I used to lean heavily on [[https://github.com/sunrise-commander/sunrise-commander][sunrise-commander]], but haven't used it much

tests/elisp/test-yasnippet.el

@@ -0,0 +1,13 @@
+(progn
+  (find-file "tmp.py")
+  (insert "<inp")
+  (yas-expand)
+  (cl-assert
+   (string-equal
+    (buffer-substring 1 20)
+    "import numpy as np
+"))
+  (set-buffer-modified-p nil)
+  (kill-current-buffer)
+  )
+

tests/emacs_tests.bats

@@ -3,6 +3,8 @@
 setup_file() {
     # One-time setup: start the emacs daemon
     emacs --daemon=test
+
+    export ELISP_TEST_DIR="$(dirname "$BATS_TEST_FILENAME")/elisp"
 }
 
 @test "magit available" {
@@ -13,6 +15,10 @@ setup_file() {
       emacsclient -s test -e "(ace-window t)"
 }
 
+@test "yasnippet" {
+      emacsclient -s test -e "(load \"${ELISP_TEST_DIR}/test-yasnippet.el\")"
+}
+
 teardown_file() {
     # Kill the emacs daemon
     emacs --batch --exec "(progn (require 'server) (server-eval-at \"test\" '(kill-emacs)))"