show mute status correctly when tab mute and add to get single tab status

tests/test_tabs.py

@@ -52,6 +52,13 @@ def test_tabs_active_in_window(browser):
     assert result["windowId"] == active["windowId"]
 
 
+def test_tabs_status(browser):
+    result = browser("tabs.status", {})
+    assert isinstance(result, dict)
+    assert "id" in result
+    assert "muted" in result
+
+
 def test_tabs_html(browser, http_tab):
     html = browser("tabs.html", {"tabId": http_tab["id"]})
     assert isinstance(html, str)
@@ -133,3 +140,14 @@ def test_tabs_mute_and_unmute(browser, http_tab):
     listed = browser("tabs.list")
     listed_tab = next(t for t in listed if t["id"] == http_tab["id"])
     assert listed_tab["muted"] is False
+    status = browser("tabs.status", {"tabId": http_tab["id"]})
+    assert status["muted"] is False
+
+
+def test_tabs_mute_requires_explicit_tab_when_multiple_tabs_open(browser):
+    opened = browser("navigate.open", {"url": "https://example.com", "background": True})
+    try:
+        with pytest.raises(RuntimeError, match="Refusing to mute without explicit tab ID"):
+            browser("tabs.mute", {})
+    finally:
+        browser("tabs.close", {"tabId": opened["id"]})