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grid/mailbox_test.go at master · lytics/grid · GitHub
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mailbox_test.go
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package
grid
import
(
"context"
"fmt"
"net"
"strconv"
"sync"
"testing"
"github.com/lytics/grid/v3/testetcd"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func
TestNewMailboxRegistry
(
t
*
testing.
T
) {
m
:=
newMailboxRegistry
()
require
.
NotZero
(
t
,
m
)
assert
.
NotZero
(
t
,
m
.
r
)
}
func
TestMailboxRegistryGetSetDeleteSize
(
t
*
testing.
T
) {
const
n1
=
"n1"
const
n2
=
"n2"
m1
:=
&
GRPCMailbox
{
name
:
"m1"
}
m2
:=
&
GRPCMailbox
{
name
:
"m2"
}
m3
:=
&
GRPCMailbox
{
name
:
"m3"
}
r
:=
newMailboxRegistry
()
// Set one
_
,
ok
:=
r
.
Get
(
n1
)
assert
.
False
(
t
,
ok
)
assert
.
Equal
(
t
,
0
,
r
.
Size
())
update
:=
r
.
Set
(
n1
,
m1
)
assert
.
False
(
t
,
update
)
assert
.
Equal
(
t
,
1
,
r
.
Size
())
got1
,
ok
:=
r
.
Get
(
n1
)
assert
.
True
(
t
,
ok
)
assert
.
Equal
(
t
,
m1
,
got1
)
// Set second
update
=
r
.
Set
(
n2
,
m2
)
assert
.
False
(
t
,
update
)
assert
.
Equal
(
t
,
2
,
r
.
Size
())
got1
,
ok
=
r
.
Get
(
n1
)
assert
.
True
(
t
,
ok
)
assert
.
Equal
(
t
,
m1
,
got1
)
got2
,
ok
:=
r
.
Get
(
n2
)
assert
.
True
(
t
,
ok
)
assert
.
Equal
(
t
,
m2
,
got2
)
// Overwrite first
update
=
r
.
Set
(
n1
,
m3
)
assert
.
True
(
t
,
update
)
assert
.
Equal
(
t
,
2
,
r
.
Size
())
got1
,
ok
=
r
.
Get
(
n1
)
assert
.
True
(
t
,
ok
)
assert
.
Equal
(
t
,
m3
,
got1
)
got2
,
ok
=
r
.
Get
(
n2
)
assert
.
True
(
t
,
ok
)
assert
.
Equal
(
t
,
m2
,
got2
)
// Delete non-existent
ok
=
r
.
Delete
(
"some-name"
)
assert
.
False
(
t
,
ok
)
assert
.
Equal
(
t
,
2
,
r
.
Size
())
// Delete first
ok
=
r
.
Delete
(
n1
)
assert
.
True
(
t
,
ok
)
assert
.
Equal
(
t
,
1
,
r
.
Size
())
_
,
ok
=
r
.
Get
(
n1
)
assert
.
False
(
t
,
ok
)
got2
,
ok
=
r
.
Get
(
n2
)
assert
.
True
(
t
,
ok
)
assert
.
Equal
(
t
,
m2
,
got2
)
// Delete second
ok
=
r
.
Delete
(
n2
)
assert
.
True
(
t
,
ok
)
assert
.
Equal
(
t
,
0
,
r
.
Size
())
_
,
ok
=
r
.
Get
(
n2
)
assert
.
False
(
t
,
ok
)
}
func
TestMailboxRegistryR
(
t
*
testing.
T
) {
for
_
,
n
:=
range
[]
int
{
0
,
1
,
2
} {
t
.
Run
(
strconv
.
Itoa
(
n
),
func
(
t
*
testing.
T
) {
r
:=
newMailboxRegistry
()
ms
:=
r
.
R
()
assert
.
NotNil
(
t
,
ms
)
assert
.
Empty
(
t
,
ms
)
msl
:=
make
([]
*
GRPCMailbox
,
n
)
for
i
:=
range
n
{
name
:=
strconv
.
Itoa
(
i
)
m
:=
GRPCMailbox
{
name
:
name
}
msl
[
i
]
=
&
m
r
.
Set
(
name
,
&
m
)
}
ms
=
r
.
R
()
require
.
Len
(
t
,
ms
,
n
)
for
_
,
m
:=
range
msl
{
got
,
ok
:=
ms
[
m
.
name
]
assert
.
True
(
t
,
ok
)
assert
.
Equal
(
t
,
m
,
got
)
}
})
}
}
// TestMailboxRegistryConcurrent tests that mailboxRegistry
// is safe to use concurrently. It relies on the -race test flag
// to detect races: the test itself has no assertions.
func
TestMailboxRegistryConcurrent
(
t
*
testing.
T
) {
// NOTE (2022-01) (mh): Only doing one combo for sanity.
// Could test performance/correctness at higher contention.
// Leaving as a table-test.
//numWorkersSet contains all the different numWorkers we want to test.
numWorkersSet
:=
[]
int
{
1
}
//numKeysSet contains all the different number of different keys we want to test.
numKeysSet
:=
[]
int
{
1
}
for
_
,
numWorkers
:=
range
numWorkersSet
{
for
_
,
numKeys
:=
range
numKeysSet
{
t
.
Run
(
fmt
.
Sprintf
(
"%v-%v"
,
numWorkers
,
numKeys
),
func
(
t
*
testing.
T
) {
r
:=
newMailboxRegistry
()
var
wg
sync.
WaitGroup
for
i
:=
range
numKeys
{
name
:=
strconv
.
Itoa
(
i
)
// Add methods you want to test here
// NOTE (2022-01) (mh): Adding here to reduce boilerplate.
ops
:=
[]
func
(){
func
() {
r
.
Get
(
name
) },
func
() {
r
.
Set
(
name
,
new
(
GRPCMailbox
)) },
func
() {
r
.
Delete
(
name
) },
func
() {
r
.
Size
() },
func
() {
for
_
,
m
:=
range
r
.
R
() {
_
=
m
}
},
func
() {
reg
:=
r
.
R
()
reg
[
name
]
=
new
(
GRPCMailbox
)
},
}
for
range
numWorkers
{
wg
.
Add
(
len
(
ops
))
for
_
,
op
:=
range
ops
{
go
func
() {
defer
wg
.
Done
()
op
()
}()
}
}
}
wg
.
Wait
()
})
}
}
}
func
TestMailboxClose
(
t
*
testing.
T
) {
etcd
:=
testetcd
.
StartAndConnect
(
t
)
s
,
err
:=
NewServer
(
etcd
,
ServerCfg
{
Namespace
:
newNamespace
(
t
)})
require
.
NoError
(
t
,
err
)
lis
,
err
:=
net
.
Listen
(
"tcp"
,
"localhost:0"
)
require
.
NoError
(
t
,
err
)
done
:=
make
(
chan
struct
{})
go
func
() {
defer
close
(
done
)
if
err
:=
s
.
Serve
(
lis
);
err
!=
nil
{
t
.
Logf
(
"serving: %v"
,
err
)
}
}()
t
.
Cleanup
(
func
() {
<-
done
})
t
.
Cleanup
(
s
.
Stop
)
err
=
s
.
WaitUntilStarted
(
context
.
Background
())
require
.
NoError
(
t
,
err
)
m
,
err
:=
s
.
NewMailbox
(
"name"
,
1
)
require
.
NoError
(
t
,
err
)
select
{
case
<-
m
.
C
():
t
.
Fatal
(
"didn't expect any values"
)
default
:
// expected
}
err
=
m
.
Close
()
require
.
NoError
(
t
,
err
)
select
{
case
_
,
ok
:=
<-
m
.
C
():
assert
.
False
(
t
,
ok
)
default
:
t
.
Fatal
(
"didn't expect channel to be open"
)
}
// We can close again without panicking
m
.
Close
()
}
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