Test json and jsonl output formats.

src/pricehist/outputs/json.py

@@ -45,10 +45,10 @@ class JSON(BaseOutput):
 
         if self.jsonl:
             for row in data:
-                json.dump(row, output)
+                json.dump(row, output, ensure_ascii=False)
                 output.write("\n")
         else:
-            json.dump(data, output, indent=2)
+            json.dump(data, output, ensure_ascii=False, indent=2)
             output.write("\n")
 
         return output.getvalue()

tests/pricehist/outputs/test_json.py

@@ -0,0 +1,127 @@
+from decimal import Decimal
+from textwrap import dedent
+
+import pytest
+
+from pricehist.format import Format
+from pricehist.outputs.json import JSON
+from pricehist.price import Price
+from pricehist.series import Series
+
+
+@pytest.fixture
+def json_out():
+    return JSON()
+
+
+@pytest.fixture
+def jsonl_out():
+    return JSON(jsonl=True)
+
+
+@pytest.fixture
+def series():
+    prices = [
+        Price("2021-01-01", Decimal("24139.4648")),
+        Price("2021-01-02", Decimal("26533.576")),
+        Price("2021-01-03", Decimal("27001.2846")),
+    ]
+    return Series("BTC", "EUR", "close", "2021-01-01", "2021-01-03", prices)
+
+
+def test_format_basics(json_out, series, mocker):
+    source = mocker.MagicMock()
+    source.id = mocker.MagicMock(return_value="sourceid")
+    result = json_out.format(series, source, Format())
+    assert (
+        result
+        == dedent(
+            """
+                [
+                  {
+                    "date": "2021-01-01",
+                    "base": "BTC",
+                    "quote": "EUR",
+                    "amount": "24139.4648",
+                    "source": "sourceid",
+                    "type": "close"
+                  },
+                  {
+                    "date": "2021-01-02",
+                    "base": "BTC",
+                    "quote": "EUR",
+                    "amount": "26533.576",
+                    "source": "sourceid",
+                    "type": "close"
+                  },
+                  {
+                    "date": "2021-01-03",
+                    "base": "BTC",
+                    "quote": "EUR",
+                    "amount": "27001.2846",
+                    "source": "sourceid",
+                    "type": "close"
+                  }
+                ]
+            """
+        ).strip()
+        + "\n"
+    )
+
+
+def test_format_basic_jsonl(jsonl_out, series, mocker):
+    source = mocker.MagicMock()
+    source.id = mocker.MagicMock(return_value="sourceid")
+    result = jsonl_out.format(series, source, Format())
+    assert (
+        result
+        == dedent(
+            """
+                {"date": "2021-01-01", "base": "BTC", "quote": "EUR", "amount": "24139.4648", "source": "sourceid", "type": "close"}
+                {"date": "2021-01-02", "base": "BTC", "quote": "EUR", "amount": "26533.576", "source": "sourceid", "type": "close"}
+                {"date": "2021-01-03", "base": "BTC", "quote": "EUR", "amount": "27001.2846", "source": "sourceid", "type": "close"}
+            """  # noqa
+        ).strip()
+        + "\n"
+    )
+
+
+def test_format_custom(json_out, series, mocker):
+    source = mocker.MagicMock()
+    source.id = mocker.MagicMock(return_value="sourceid")
+    fmt = Format(base="XBT", quote="€", thousands=".", decimal=",", datesep="/")
+    result = json_out.format(series, source, fmt)
+    assert (
+        result
+        == dedent(
+            """
+                [
+                  {
+                    "date": "2021/01/01",
+                    "base": "XBT",
+                    "quote": "€",
+                    "amount": "24.139,4648",
+                    "source": "sourceid",
+                    "type": "close"
+                  },
+                  {
+                    "date": "2021/01/02",
+                    "base": "XBT",
+                    "quote": "€",
+                    "amount": "26.533,576",
+                    "source": "sourceid",
+                    "type": "close"
+                  },
+                  {
+                    "date": "2021/01/03",
+                    "base": "XBT",
+                    "quote": "€",
+                    "amount": "27.001,2846",
+                    "source": "sourceid",
+                    "type": "close"
+                  }
+                ]
+            """
+        ).strip()
+        + "\n"
+    )