Handle db.table(table_name).insert({}), closes #759

tests/test_default_value.py

@@ -31,3 +31,24 @@ def test_quote_default_value(fresh_db, column_def, initial_value, expected_value
     assert expected_value == fresh_db.quote_default_value(
         fresh_db["foo"].columns[0].default_value
     )
+
+
+def test_insert_empty_record_uses_default_values(fresh_db):
+    fresh_db.execute("""
+        CREATE TABLE has_defaults (
+            id INTEGER PRIMARY KEY,
+            name TEXT,
+            timestamp TEXT DEFAULT CURRENT_TIMESTAMP,
+            is_active INTEGER NOT NULL DEFAULT 1
+        )
+        """)
+
+    table = fresh_db["has_defaults"]
+    table.insert({})
+
+    rows = list(table.rows)
+    assert len(rows) == 1
+    assert rows[0]["id"] == 1
+    assert rows[0]["name"] is None
+    assert rows[0]["timestamp"] is not None
+    assert rows[0]["is_active"] == 1