add

ccxt/test/base/test_json.py

@@ -0,0 +1,42 @@
+import os
+import sys
+
+root = os.path.dirname(os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__)))))
+sys.path.append(root)
+
+# ----------------------------------------------------------------------------
+
+# PLEASE DO NOT EDIT THIS FILE, IT IS GENERATED AND WILL BE OVERWRITTEN:
+# https://github.com/ccxt/ccxt/blob/master/CONTRIBUTING.md#how-to-contribute-code
+
+# ----------------------------------------------------------------------------
+# -*- coding: utf-8 -*-
+
+import ccxt  # noqa: F402
+from ccxt.base.errors import BadRequest  # noqa E402
+
+def test_json():
+    exchange = ccxt.Exchange({
+        'id': 'regirock',
+    })
+    # Test: object
+    obj = {
+        'k': 'v',
+    }
+    obj_json = exchange.json(obj)
+    assert obj_json == '{"k":"v"}'
+    # Test: list
+    list = [1, 2]
+    list_json = exchange.json(list)
+    assert list_json == '[1,2]'
+    assert 'GO_SKIP_START'
+    try:
+        raise BadRequest('some error')
+    except Exception as e:
+        err_string = exchange.json(e)
+        assert err_string == '{"name":"BadRequest"}'
+    assert 'GO_SKIP_END'
+    # Test: json a string
+    str = 'ccxt, rocks!'
+    serialized_string = exchange.json(str)
+    assert serialized_string == '"ccxt, rocks!"'