1 /*
2 * Copyright (C) 2011 The Android Open Source Project
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 */
16
17 #include "dex_instruction_visitor.h"
18
19 #include <memory>
20
21 #include "gtest/gtest.h"
22
23 namespace art {
24
25 class TestVisitor : public DexInstructionVisitor<TestVisitor> {};
26
TEST(InstructionTest,Init)27 TEST(InstructionTest, Init) {
28 std::unique_ptr<TestVisitor> visitor(new TestVisitor);
29 }
30
31 class CountVisitor : public DexInstructionVisitor<CountVisitor> {
32 public:
33 int count_;
34
CountVisitor()35 CountVisitor() : count_(0) {}
36
Do_Default(const Instruction *)37 void Do_Default(const Instruction*) {
38 ++count_;
39 }
40 };
41
TEST(InstructionTest,Count)42 TEST(InstructionTest, Count) {
43 CountVisitor v0;
44 const uint16_t c0[] = {};
45 v0.Visit(c0, sizeof(c0));
46 EXPECT_EQ(0, v0.count_);
47
48 CountVisitor v1;
49 const uint16_t c1[] = { 0 };
50 v1.Visit(c1, sizeof(c1));
51 EXPECT_EQ(1, v1.count_);
52
53 CountVisitor v2;
54 const uint16_t c2[] = { 0, 0 };
55 v2.Visit(c2, sizeof(c2));
56 EXPECT_EQ(2, v2.count_);
57
58 CountVisitor v3;
59 const uint16_t c3[] = { 0, 0, 0, };
60 v3.Visit(c3, sizeof(c3));
61 EXPECT_EQ(3, v3.count_);
62
63 CountVisitor v4;
64 const uint16_t c4[] = { 0, 0, 0, 0 };
65 v4.Visit(c4, sizeof(c4));
66 EXPECT_EQ(4, v4.count_);
67 }
68
69 } // namespace art
70