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// concurrent3
// Make the tests pass!
// I AM NOT DONE
package main_test
import (
"bytes"
"fmt"
"testing"
)
func TestSendAndReceive(t *testing.T) {
var buf bytes.Buffer
messages := make(chan string)
sendAndReceive(&buf, messages)
got := buf.String()
want := "Hello World"
if got != want {
t.Errorf("got %q want %q", got, want)
}
}
func sendAndReceive(buf *bytes.Buffer, messages chan string) {
go func() {
messages <- "Hello"
messages <- "World"
close(messages)
}()
greeting := <-messages
fmt.Fprint(buf, greeting)
// Here we just receive the first message
// Consider using a for-range loop to iterate over the messages
_, ok := <-messages
if !ok {
fmt.Fprint(buf, "Channel is closed")
}
}
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