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;;; test-video-audio-recording--get-available-sinks.el --- Tests for sink discovery -*- lexical-binding: t; -*-
;;; Commentary:
;; Unit tests for cj/recording--get-available-sinks.
;; Verifies that available sinks are discovered correctly:
;; - Muted sinks are excluded
;; - Friendly descriptions from PulseAudio are used
;; - PulseAudio state is included
;;; Code:
(require 'ert)
;; Stub dependencies before loading the module
(defvar cj/custom-keymap (make-sparse-keymap)
"Stub keymap for testing.")
(require 'video-audio-recording)
;;; Helper
(defun test-sinks--make-pactl-output (sinks)
"Build fake `pactl list sinks' output from SINKS.
Each sink is (name description mute state)."
(mapconcat (lambda (s)
(format "Sink #1\n\tState: %s\n\tName: %s\n\tDescription: %s\n\tMute: %s\n"
(nth 3 s) (nth 0 s) (nth 1 s) (nth 2 s)))
sinks ""))
;;; Normal Cases
(ert-deftest test-get-available-sinks-normal-filters-muted ()
"Test that muted sinks are excluded from sink list."
(cl-letf (((symbol-function 'shell-command-to-string)
(lambda (_cmd)
(test-sinks--make-pactl-output
'(("active-sink" "Active Sink" "no" "RUNNING")
("muted-sink" "Muted Sink" "yes" "SUSPENDED"))))))
(let ((sinks (cj/recording--get-available-sinks)))
(should (= 1 (length sinks)))
(should (equal "active-sink" (nth 0 (car sinks)))))))
(ert-deftest test-get-available-sinks-normal-uses-descriptions ()
"Test that friendly descriptions are returned as second element."
(cl-letf (((symbol-function 'shell-command-to-string)
(lambda (_cmd)
(test-sinks--make-pactl-output
'(("raw-sink-name" "Friendly Sink Name" "no" "IDLE"))))))
(let ((sinks (cj/recording--get-available-sinks)))
(should (equal "Friendly Sink Name" (nth 1 (car sinks)))))))
(ert-deftest test-get-available-sinks-normal-includes-state ()
"Test that PulseAudio state is returned as third element."
(cl-letf (((symbol-function 'shell-command-to-string)
(lambda (_cmd)
(test-sinks--make-pactl-output
'(("sink-a" "Sink A" "no" "RUNNING"))))))
(let ((sinks (cj/recording--get-available-sinks)))
(should (equal "RUNNING" (nth 2 (car sinks)))))))
(ert-deftest test-get-available-sinks-normal-multiple-sinks ()
"Test that multiple non-muted sinks are returned."
(cl-letf (((symbol-function 'shell-command-to-string)
(lambda (_cmd)
(test-sinks--make-pactl-output
'(("sink-a" "JDS Labs" "no" "RUNNING")
("sink-b" "Shure MV7+" "no" "SUSPENDED")
("muted-sink" "Muted" "yes" "SUSPENDED"))))))
(let ((sinks (cj/recording--get-available-sinks)))
(should (= 2 (length sinks))))))
;;; Boundary Cases
(ert-deftest test-get-available-sinks-boundary-empty-output ()
"Test that empty pactl output returns empty list."
(cl-letf (((symbol-function 'shell-command-to-string)
(lambda (_cmd) "")))
(should (null (cj/recording--get-available-sinks)))))
(ert-deftest test-get-available-sinks-boundary-all-muted ()
"Test that if all sinks are muted, returns empty list."
(cl-letf (((symbol-function 'shell-command-to-string)
(lambda (_cmd)
(test-sinks--make-pactl-output
'(("muted-a" "Sink A" "yes" "SUSPENDED")
("muted-b" "Sink B" "yes" "SUSPENDED"))))))
(should (null (cj/recording--get-available-sinks)))))
(provide 'test-video-audio-recording--get-available-sinks)
;;; test-video-audio-recording--get-available-sinks.el ends here
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