feat: add test for test_list_data command

freqtrade/commands/data_commands.py

@@ -14,6 +14,7 @@ from freqtrade.data.history import download_data_main
 from freqtrade.enums import CandleType, RunMode, TradingMode
 from freqtrade.exceptions import ConfigurationError
 from freqtrade.exchange import timeframe_to_minutes
+from freqtrade.misc import plural
 from freqtrade.plugins.pairlist.pairlist_helpers import dynamic_expand_pairlist
 from freqtrade.resolvers import ExchangeResolver
 from freqtrade.util import print_rich_table
@@ -194,7 +195,7 @@ def start_list_trades_data(args: Dict[str, Any]) -> None:
     if args["pairs"]:
         paircombs = [comb for comb in paircombs if comb in args["pairs"]]
 
-    title = f"Found trades data for {len(paircombs)} pairs."
+    title = f"Found trades data for {len(paircombs)} {plural(len(paircombs), "pair")}."
     if not config.get("show_timerange"):
         print_rich_table(
             [(pair, config.get("candle_type_def", CandleType.SPOT)) for pair in sorted(paircombs)],

tests/commands/test_commands.py

@@ -1692,6 +1692,53 @@ def test_start_list_data(testdatadir, capsys):
     )
 
 
+def test_start_list_trades_data(testdatadir, capsys):
+    args = [
+        "list-data",
+        "--datadir",
+        str(testdatadir),
+        "--trades",
+    ]
+    pargs = get_args(args)
+    pargs["config"] = None
+    start_list_data(pargs)
+    captured = capsys.readouterr()
+    assert "Found trades data for 1 pair." in captured.out
+    assert re.search(r".*Pair.*Type.*\n", captured.out)
+    assert re.search(r"\n.* XRP/ETH .* spot |\n", captured.out)
+
+    args = [
+        "list-data",
+        "--datadir",
+        str(testdatadir),
+        "--trades",
+        "--show-timerange",
+    ]
+    pargs = get_args(args)
+    pargs["config"] = None
+    start_list_data(pargs)
+    captured = capsys.readouterr()
+    assert "Found trades data for 1 pair." in captured.out
+    assert re.search(r".*Pair.*Type.*From.*To.*Trades.*\n", captured.out)
+    assert re.search(
+        r"\n.* XRP/ETH .* spot .* 2019-10-11 00:00:01 .* 2019-10-13 11:19:28 .* 12477 .*|\n",
+        captured.out,
+    )
+
+    args = [
+        "list-data",
+        "--datadir",
+        str(testdatadir),
+        "--trades",
+        "--show-timerange",
+    ]
+    pargs = get_args(args)
+    pargs["config"] = None
+    start_list_data(pargs)
+    captured = capsys.readouterr()
+    assert "Found trades data for 0 pair." in captured.out
+
+
 @pytest.mark.usefixtures("init_persistence")
 def test_show_trades(mocker, fee, capsys, caplog):
     mocker.patch("freqtrade.persistence.init_db")