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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 included (shown with [muted] label in UI)
;; - Friendly descriptions from PulseAudio are used
;; - PulseAudio state and mute status are 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-includes-muted ()
"Test that muted sinks are included in 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 (= 2 (length sinks)))
(should (equal "yes" (nth 3 (nth 1 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-includes-mute-status ()
"Test that mute status is returned as fourth element."
(cl-letf (((symbol-function 'shell-command-to-string)
(lambda (_cmd)
(test-sinks--make-pactl-output
'(("sink-a" "Sink A" "yes" "SUSPENDED"))))))
(let ((sinks (cj/recording--get-available-sinks)))
(should (equal "yes" (nth 3 (car sinks)))))))
(ert-deftest test-get-available-sinks-normal-multiple-sinks ()
"Test that multiple sinks are returned including muted."
(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 (= 3 (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)))))
;;; Error Cases
(ert-deftest test-get-available-sinks-error-garbled-output ()
"Test that garbled pactl output returns empty list, not an error."
(cl-letf (((symbol-function 'shell-command-to-string)
(lambda (_cmd) "random garbage\nwith newlines\nbut no structure\n")))
(should (null (cj/recording--get-available-sinks)))))
(ert-deftest test-get-available-sinks-error-missing-fields ()
"Test that sink with partial fields does not crash."
(cl-letf (((symbol-function 'shell-command-to-string)
(lambda (_cmd) "Sink #1\n\tState: RUNNING\n\tName: partial-sink\n")))
;; Missing Description and Mute — should not error
(let ((sinks (cj/recording--get-available-sinks)))
(should (listp sinks)))))
(provide 'test-video-audio-recording--get-available-sinks)
;;; test-video-audio-recording--get-available-sinks.el ends here
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