-
Notifications
You must be signed in to change notification settings - Fork 0
/
04_senderware_test.go
54 lines (46 loc) · 1.06 KB
/
04_senderware_test.go
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
package go_channel__test
import (
"strings"
"testing"
"time"
)
func prefixSenderware(prefix string, in chan<- string) chan<- string {
out := make(chan string, cap(in))
go func() {
defer close(out)
for data := range out {
in <- prefix + data
}
}()
return out
}
// This senderware will uppercase string from original input data
func uppercaseSenderware(in chan<- string) chan<- string {
out := make(chan string, cap(in))
go func() {
defer close(out)
for data := range out {
in <- strings.ToUpper(data)
}
}()
return out
}
// channel c has 0/5 items
// read c value "my custom prefixSTRING 01"
// read c value "my custom prefixSTRING 02"
// finish
func Test_senderware(t *testing.T) {
c := make(chan string, 5)
go func() {
for s := range c {
t.Logf("read c value \"%s\"\n", s)
}
}()
t.Logf("channel c has %d/%d items\n", len(c), cap(c))
wrappedC := prefixSenderware("my custom prefix", c)
wrappedC = uppercaseSenderware(wrappedC)
wrappedC <- "string 01"
wrappedC <- "string 02"
t.Log("finish")
time.Sleep(100 * time.Millisecond)
}