1#!/usr/bin/env python3
2#  Copyright 2016 Google Inc. All Rights Reserved.
3#
4# Licensed under the Apache License, Version 2.0 (the "License");
5# you may not use this file except in compliance with the License.
6# You may obtain a copy of the License at
7#
8#      http://www.apache.org/licenses/LICENSE-2.0
9#
10# Unless required by applicable law or agreed to in writing, software
11# distributed under the License is distributed on an "AS-IS" BASIS,
12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13# See the License for the specific language governing permissions and
14# limitations under the License.
15
16from fruit_test_common import *
17
18COMMON_DEFINITIONS = '''
19    #define IN_FRUIT_CPP_FILE 1
20
21    #include "meta/common.h"
22    #include <fruit/impl/meta/component.h>
23
24    struct A1 {};
25    struct B1 {};
26
27    using A = Type<A1>;
28    using B = Type<B1>;
29    '''
30
31def test_GetNthType():
32    source = '''
33        int main() {
34          AssertSameType(A, GetNthType(Int<0>, Vector<A>));
35
36          AssertSameType(A, GetNthType(Int<0>, Vector<A, B>));
37          AssertSameType(B, GetNthType(Int<1>, Vector<A, B>));
38        }
39        '''
40    expect_success(
41        COMMON_DEFINITIONS,
42        source,
43        locals())
44
45if __name__== '__main__':
46    main(__file__)
47