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+;;; test-video-audio-recording--device-status-label.el --- Tests for device status label -*- lexical-binding: t; -*-
+
+;;; Commentary:
+;; Unit tests for cj/recording--device-status-label.
+;; Verifies human-readable label mapping from PulseAudio state strings.
+
+;;; Code:
+
+(require 'ert)
+
+;; Stub dependencies before loading the module
+(defvar cj/custom-keymap (make-sparse-keymap)
+  "Stub keymap for testing.")
+
+(require 'video-audio-recording)
+
+;;; Normal Cases
+
+(ert-deftest test-video-audio-recording--device-status-label-normal-running ()
+  "RUNNING unmuted device returns [in use]."
+  (should (equal "[in use]" (cj/recording--device-status-label "RUNNING" "no"))))
+
+(ert-deftest test-video-audio-recording--device-status-label-normal-idle ()
+  "IDLE unmuted device returns [ready]."
+  (should (equal "[ready]" (cj/recording--device-status-label "IDLE" "no"))))
+
+(ert-deftest test-video-audio-recording--device-status-label-normal-suspended ()
+  "SUSPENDED unmuted device returns [available]."
+  (should (equal "[available]" (cj/recording--device-status-label "SUSPENDED" "no"))))
+
+(ert-deftest test-video-audio-recording--device-status-label-normal-muted-overrides-state ()
+  "Muted device returns [muted] regardless of state."
+  (should (equal "[muted]" (cj/recording--device-status-label "RUNNING" "yes")))
+  (should (equal "[muted]" (cj/recording--device-status-label "IDLE" "yes")))
+  (should (equal "[muted]" (cj/recording--device-status-label "SUSPENDED" "yes"))))
+
+;;; Boundary Cases
+
+(ert-deftest test-video-audio-recording--device-status-label-boundary-nil-state ()
+  "Nil state with unmuted falls through to [available]."
+  (should (equal "[available]" (cj/recording--device-status-label nil "no"))))
+
+(ert-deftest test-video-audio-recording--device-status-label-boundary-lowercase-state ()
+  "Lowercase state is handled via upcase."
+  (should (equal "[in use]" (cj/recording--device-status-label "running" "no")))
+  (should (equal "[ready]" (cj/recording--device-status-label "idle" "no"))))
+
+(ert-deftest test-video-audio-recording--device-status-label-boundary-empty-state ()
+  "Empty string state falls through to [available]."
+  (should (equal "[available]" (cj/recording--device-status-label "" "no"))))
+
+;;; Error Cases
+
+(ert-deftest test-video-audio-recording--device-status-label-error-unknown-state ()
+  "Unknown state string falls through to [available]."
+  (should (equal "[available]" (cj/recording--device-status-label "BOGUS" "no"))))
+
+(ert-deftest test-video-audio-recording--device-status-label-error-muted-nil-state ()
+  "Muted with nil state still returns [muted]."
+  (should (equal "[muted]" (cj/recording--device-status-label nil "yes"))))
+
+(provide 'test-video-audio-recording--device-status-label)
+;;; test-video-audio-recording--device-status-label.el ends here