Add test for sysinfo endpoint

tests/rpc/test_rpc_apiserver.py

@@ -1271,6 +1271,16 @@ def test_list_available_pairs(botclient):
     assert len(rc.json()['pair_interval']) == 1
 
 
+def test_sysinfo(botclient):
+    ftbot, client = botclient
+
+    rc = client_get(client, f"{BASE_URI}/sysinfo")
+    assert_response(rc)
+    result = rc.json()
+    assert 'cpu_pct' in result
+    assert 'ram_pct' in result
+
+
 def test_api_backtesting(botclient, mocker, fee, caplog):
     ftbot, client = botclient
     mocker.patch('freqtrade.exchange.Exchange.get_fee', fee)