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
|
/*
* Copyright 2016-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
*/
package kotlinx.coroutines.slf4j
import kotlinx.coroutines.*
import org.junit.*
import org.junit.Test
import org.slf4j.*
import kotlin.coroutines.*
import kotlin.test.*
class MDCContextTest : TestBase() {
@Before
fun setUp() {
MDC.clear()
}
@After
fun tearDown() {
MDC.clear()
}
@Test
fun testContextIsNotPassedByDefaultBetweenCoroutines() = runTest {
expect(1)
MDC.put("myKey", "myValue")
// Standalone launch
GlobalScope.launch {
assertEquals(null, MDC.get("myKey"))
expect(2)
}.join()
finish(3)
}
@Test
fun testContextCanBePassedBetweenCoroutines() = runTest {
expect(1)
MDC.put("myKey", "myValue")
// Scoped launch with MDCContext element
launch(MDCContext()) {
assertEquals("myValue", MDC.get("myKey"))
expect(2)
}.join()
finish(3)
}
@Test
fun testContextInheritance() = runTest {
expect(1)
MDC.put("myKey", "myValue")
withContext(MDCContext()) {
MDC.put("myKey", "myValue2")
// Scoped launch with inherited MDContext element
launch(Dispatchers.Default) {
assertEquals("myValue", MDC.get("myKey"))
expect(2)
}.join()
finish(3)
}
assertEquals("myValue", MDC.get("myKey"))
}
@Test
fun testContextPassedWhileOnMainThread() {
MDC.put("myKey", "myValue")
// No MDCContext element
runBlocking {
assertEquals("myValue", MDC.get("myKey"))
}
}
@Test
fun testContextCanBePassedWhileOnMainThread() {
MDC.put("myKey", "myValue")
runBlocking(MDCContext()) {
assertEquals("myValue", MDC.get("myKey"))
}
}
@Test
fun testContextNeededWithOtherContext() {
MDC.put("myKey", "myValue")
runBlocking(MDCContext()) {
assertEquals("myValue", MDC.get("myKey"))
}
}
@Test
fun testContextMayBeEmpty() {
runBlocking(MDCContext()) {
assertEquals(null, MDC.get("myKey"))
}
}
@Test
fun testContextWithContext() = runTest {
MDC.put("myKey", "myValue")
val mainDispatcher = kotlin.coroutines.coroutineContext[ContinuationInterceptor]!!
withContext(Dispatchers.Default + MDCContext()) {
assertEquals("myValue", MDC.get("myKey"))
withContext(mainDispatcher) {
assertEquals("myValue", MDC.get("myKey"))
}
}
}
}
|
