implemented floor divide operator for a complex number

batavia/types/Tuple.js

@@ -237,7 +237,13 @@ Tuple.prototype.__div__ = function(other) {
 }
 
 Tuple.prototype.__floordiv__ = function(other) {
-    throw new exceptions.TypeError.$pyclass("unsupported operand type(s) for //: 'tuple' and '" + type_name(other) + "'")
+    var types = require('../types')
+
+    if (types.isinstance(other, types.Complex)) {
+        throw new exceptions.TypeError.$pyclass("can't take floor of complex number.")
+    } else {
+        throw new exceptions.TypeError.$pyclass("unsupported operand type(s) for //: 'tuple' and '" + type_name(other) + "'")
+    }
 }
 
 Tuple.prototype.__truediv__ = function(other) {

tests/datatypes/test_tuple.py

@@ -133,8 +133,6 @@ class BinaryTupleOperationTests(BinaryOperationTestCase, TranspileTestCase):
     data_type = 'tuple'
 
     not_implemented = [
-        'test_floor_divide_complex',
-
         'test_modulo_complex',
 
         'test_multiply_int',