add

ccxt/test/base/test_group_by.py

@@ -0,0 +1,53 @@
+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.test.exchange.base import test_shared_methods  # noqa E402
+
+def test_group_by():
+    exchange = ccxt.Exchange({
+        'id': 'sampleexchange',
+    })
+    sample_array = [{
+    'foo': 'a',
+}, {
+    'foo': 'b',
+}, {
+    'foo': 'c',
+}, {
+    'foo': 'b',
+}, {
+    'foo': 'c',
+}, {
+    'foo': 'c',
+}]
+    current_value = exchange.group_by(sample_array, 'foo')
+    stored_value = {
+        'a': [{
+    'foo': 'a',
+}],
+        'b': [{
+    'foo': 'b',
+}, {
+    'foo': 'b',
+}],
+        'c': [{
+    'foo': 'c',
+}, {
+    'foo': 'c',
+}, {
+    'foo': 'c',
+}],
+    }
+    test_shared_methods.assert_deep_equal(exchange, None, 'testGroupBy', current_value, stored_value)