1/*
2 * Copyright (C) 2012 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 <unistd.h>
18#include <sys/types.h>
19#include <sys/wait.h>
20#include <string.h>
21
22#include <gtest/gtest.h>
23
24#include "TestForkerEventListener.h"
25#include "TestExtensions.h"
26
27#define DEBUG_TEST_FORKER_EVENT_LISTENER 0
28
29#define RETURN_CODE_PASSED 0
30#define RETURN_CODE_FAILED 1
31
32namespace android {
33namespace camera2 {
34namespace tests {
35
36bool TestForkerEventListener::mIsForked         = false;
37
38TestForkerEventListener::TestForkerEventListener() {
39    mIsForked = false;
40    mHasSucceeded = true;
41    mTermSignal = 0;
42}
43
44// Called before a test starts.
45void TestForkerEventListener::OnTestStart(const ::testing::TestInfo&) {
46
47    if (!TEST_EXTENSION_FORKING_ENABLED) {
48        return;
49    }
50
51    pid_t childPid = fork();
52    if (childPid != 0) {
53        int status;
54        waitpid(childPid, &status, /*options*/0);
55
56        // terminated normally?
57        mHasSucceeded = WIFEXITED(status);
58        // terminate with return code 0 = test passed, 1 = test failed
59        if (mHasSucceeded) {
60          mHasSucceeded = WEXITSTATUS(status) == RETURN_CODE_PASSED;
61        } else if (WIFSIGNALED(status)) {
62          mTermSignal = WTERMSIG(status);
63        }
64
65        /* the test is then skipped by inserting the various
66        TEST_EXTENSION_ macros in TestExtensions.h */
67
68    } else {
69        mIsForked = true;
70    }
71}
72
73// Called after a failed assertion or a SUCCEED() invocation.
74void TestForkerEventListener::OnTestPartResult(
75    const ::testing::TestPartResult& test_part_result) {
76
77    if (DEBUG_TEST_FORKER_EVENT_LISTENER) {
78        printf("%s in %s:%d\n%s\n",
79             test_part_result.failed() ? "*** Failure" : "Success",
80             test_part_result.file_name(),
81             test_part_result.line_number(),
82             test_part_result.summary());
83    }
84}
85
86// Called after a test ends.
87void TestForkerEventListener::OnTestEnd(const ::testing::TestInfo& test_info) {
88
89    if (!TEST_EXTENSION_FORKING_ENABLED) {
90        return;
91    }
92
93    if (mIsForked) {
94        exit(test_info.result()->Passed()
95            ? RETURN_CODE_PASSED : RETURN_CODE_FAILED);
96    } else if (!mHasSucceeded && mTermSignal != 0) {
97
98      printf("*** Test %s.%s crashed with signal = %s\n",
99             test_info.test_case_name(), test_info.name(),
100             strsignal(mTermSignal));
101    }
102
103    //TODO: overload the default event listener to suppress this message
104    // dynamically (e.g. by skipping OnTestPartResult after OnTestEnd )
105
106    // trigger a test failure if the child has failed
107    if (!mHasSucceeded) {
108        ADD_FAILURE();
109    }
110    mTermSignal = 0;
111}
112
113
114}
115}
116}
117
118