1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
#include "storage.hpp"
#include <mbgl/storage/online_file_source.hpp>
#include <mbgl/storage/network_status.hpp>
#include <mbgl/util/chrono.hpp>
#include <mbgl/util/run_loop.hpp>
#include <mbgl/util/timer.hpp>
// Test for https://github.com/mapbox/mapbox-gl-native/issues/2123
//
// A request is made. While the request is in progress, the network status changes. This should
// trigger an immediate retry of all requests that are not in progress. This test makes sure that
// we don't accidentally double-trigger the request.
TEST_F(Storage, TEST_REQUIRES_SERVER(HTTPNetworkStatusChange)) {
SCOPED_TEST(HTTPNetworkStatusChange)
using namespace mbgl;
util::RunLoop loop;
OnlineFileSource fs;
const Resource resource { Resource::Unknown, "http://127.0.0.1:3000/delayed" };
// This request takes 200 milliseconds to answer.
std::unique_ptr<AsyncRequest> req = fs.request(resource, [&](Response res) {
req.reset();
EXPECT_EQ(nullptr, res.error);
ASSERT_TRUE(res.data.get());
EXPECT_EQ("Response", *res.data);
EXPECT_FALSE(bool(res.expires));
EXPECT_FALSE(bool(res.modified));
EXPECT_FALSE(bool(res.etag));
loop.stop();
HTTPNetworkStatusChange.finish();
});
// After 50 milliseconds, we're going to trigger a NetworkStatus change.
util::Timer reachableTimer;
reachableTimer.start(Milliseconds(50), Duration::zero(), [] () {
mbgl::NetworkStatus::Reachable();
});
loop.run();
}
// Tests that a change in network status preempts requests that failed due to connection or
// reachability issues.
TEST_F(Storage, TEST_REQUIRES_SERVER(HTTPNetworkStatusChangePreempt)) {
SCOPED_TEST(HTTPNetworkStatusChangePreempt)
using namespace mbgl;
util::RunLoop loop;
OnlineFileSource fs;
const auto start = Clock::now();
const Resource resource{ Resource::Unknown, "http://127.0.0.1:3001/test" };
std::unique_ptr<AsyncRequest> req = fs.request(resource, [&](Response res) {
static int counter = 0;
const auto duration = std::chrono::duration<const double>(Clock::now() - start).count();
if (counter == 0) {
EXPECT_GT(0.2, duration) << "Response came in too late";
} else if (counter == 1) {
EXPECT_LT(0.39, duration) << "Preempted retry triggered too early";
EXPECT_GT(0.6, duration) << "Preempted retry triggered too late";
} else if (counter > 1) {
FAIL() << "Retried too often";
}
ASSERT_NE(nullptr, res.error);
EXPECT_EQ(Response::Error::Reason::Connection, res.error->reason);
ASSERT_FALSE(res.data.get());
EXPECT_FALSE(bool(res.expires));
EXPECT_FALSE(bool(res.modified));
EXPECT_FALSE(bool(res.etag));
if (counter++ == 1) {
req.reset();
loop.stop();
HTTPNetworkStatusChangePreempt.finish();
}
});
// After 400 milliseconds, we're going to trigger a NetworkStatus change.
util::Timer reachableTimer;
reachableTimer.start(Milliseconds(400), Duration::zero(), [] () {
mbgl::NetworkStatus::Reachable();
});
loop.run();
}
TEST_F(Storage, TEST_REQUIRES_SERVER(HTTPNetworkStatusOnlineOffline)) {
SCOPED_TEST(HTTPNetworkStatusOnlineOffline)
using namespace mbgl;
util::RunLoop loop;
OnlineFileSource fs;
const Resource resource { Resource::Unknown, "http://127.0.0.1:3000/test" };
EXPECT_EQ(NetworkStatus::Get(), NetworkStatus::Status::Online) << "Default status should be Online";
NetworkStatus::Set(NetworkStatus::Status::Offline);
util::Timer onlineTimer;
onlineTimer.start(Milliseconds(100), Duration::zero(), [&] () {
NetworkStatus::Set(NetworkStatus::Status::Online);
});
std::unique_ptr<AsyncRequest> req = fs.request(resource, [&](Response res) {
req.reset();
EXPECT_EQ(nullptr, res.error);
ASSERT_TRUE(res.data.get());
EXPECT_EQ(NetworkStatus::Get(), NetworkStatus::Status::Online) << "Triggered before set back to Online";
loop.stop();
HTTPNetworkStatusOnlineOffline.finish();
});
loop.run();
}
|