diff --git a/freqtrade/freqtradebot.py b/freqtrade/freqtradebot.py
index d552dc65f..52ada40fa 100644
--- a/freqtrade/freqtradebot.py
+++ b/freqtrade/freqtradebot.py
@@ -135,7 +135,6 @@ class FreqtradeBot(object):
         """
         Refresh tickers asyncronously and return the result.
         """
-        # TODO: maybe add since_ms to use async in the download-script?
         # TODO: Add tests for this and the async stuff above
         logger.debug("Refreshing klines for %d pairs", len(pair_list))
         datatups = asyncio.get_event_loop().run_until_complete(
diff --git a/freqtrade/tests/exchange/test_exchange.py b/freqtrade/tests/exchange/test_exchange.py
index 8fa7a6fec..f6b6b105f 100644
--- a/freqtrade/tests/exchange/test_exchange.py
+++ b/freqtrade/tests/exchange/test_exchange.py
@@ -624,11 +624,6 @@ async def test_async_get_candles_history(default_conf, mocker):
     #     await exchange.async_get_candles_history('ETH/BTC', "5m")
 
 
-def test_refresh_tickers():
-    # TODO: Implement test for this
-    pass
-
-
 def make_fetch_ohlcv_mock(data):
     def fetch_ohlcv_mock(pair, timeframe, since):
         if since:
diff --git a/freqtrade/tests/test_freqtradebot.py b/freqtrade/tests/test_freqtradebot.py
index 3bf6ad037..489392438 100644
--- a/freqtrade/tests/test_freqtradebot.py
+++ b/freqtrade/tests/test_freqtradebot.py
@@ -137,6 +137,36 @@ def test_throttle_with_assets(mocker, default_conf) -> None:
     assert result == -1
 
 
+def test_refresh_tickers(mocker, default_conf, caplog) -> None:
+    tick = [
+         [
+             1511686200000,  # unix timestamp ms
+             1,  # open
+             2,  # high
+             3,  # low
+             4,  # close
+             5,  # volume (in quote currency)
+         ]
+     ]
+
+    async def async_get_candles_history(pairlist, timeframe):
+        return [(pair, tick) for pair in pairlist]
+
+    caplog.set_level(logging.DEBUG)
+    freqtrade = get_patched_freqtradebot(mocker, default_conf)
+    freqtrade.exchange.async_get_candles_history = async_get_candles_history
+
+    pairs = ['IOTA/ETH', 'XRP/ETH']
+    # empty dicts
+    assert not freqtrade._klines
+    freqtrade.refresh_tickers(['IOTA/ETH', 'XRP/ETH'])
+
+    assert log_has(f'Refreshing klines for {len(pairs)} pairs', caplog.record_tuples)
+    assert freqtrade._klines
+    for pair in pairs:
+        assert freqtrade._klines[pair]
+
+
 def test_gen_pair_whitelist(mocker, default_conf, tickers) -> None:
     freqtrade = get_patched_freqtradebot(mocker, default_conf)
     mocker.patch('freqtrade.exchange.Exchange.get_tickers', tickers)