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// +build example
package main
import (
"fmt"
"testing"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/service/sqs"
"github.com/aws/aws-sdk-go/service/sqs/sqsiface"
)
type mockedReceiveMsgs struct {
sqsiface.SQSAPI
Resp sqs.ReceiveMessageOutput
}
func (m mockedReceiveMsgs) ReceiveMessage(in *sqs.ReceiveMessageInput) (*sqs.ReceiveMessageOutput, error) {
// Only need to return mocked response output
return &m.Resp, nil
}
func TestQueueGetMessage(t *testing.T) {
cases := []struct {
Resp sqs.ReceiveMessageOutput
Expected []Message
}{
{ // Case 1, expect parsed responses
Resp: sqs.ReceiveMessageOutput{
Messages: []*sqs.Message{
{Body: aws.String(`{"from":"user_1","to":"room_1","msg":"Hello!"}`)},
{Body: aws.String(`{"from":"user_2","to":"room_1","msg":"Hi user_1 :)"}`)},
},
},
Expected: []Message{
{From: "user_1", To: "room_1", Msg: "Hello!"},
{From: "user_2", To: "room_1", Msg: "Hi user_1 :)"},
},
},
{ // Case 2, not messages returned
Resp: sqs.ReceiveMessageOutput{},
Expected: []Message{},
},
}
for i, c := range cases {
q := Queue{
Client: mockedReceiveMsgs{Resp: c.Resp},
URL: fmt.Sprintf("mockURL_%d", i),
}
msgs, err := q.GetMessages(20)
if err != nil {
t.Fatalf("%d, unexpected error, %v", i, err)
}
if a, e := len(msgs), len(c.Expected); a != e {
t.Fatalf("%d, expected %d messages, got %d", i, e, a)
}
for j, msg := range msgs {
if a, e := msg, c.Expected[j]; a != e {
t.Errorf("%d, expected %v message, got %v", i, e, a)
}
}
}
}
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