E2Manager/handlers/endc_x2apSetupRequest_asn1_packer_test.go

   1 /*******************************************************************************
   2  *
   3  *   Copyright (c) 2019 AT&T Intellectual Property.
   4  *
   5  *   Licensed under the Apache License, Version 2.0 (the "License");
   6  *   you may not use this file except in compliance with the License.
   7  *   You may obtain a copy of the License at
   8  *
   9  *       http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  *   Unless required by applicable law or agreed to in writing, software
  12  *   distributed under the License is distributed on an "AS IS" BASIS,
  13  *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  *   See the License for the specific language governing permissions and
  15  *   limitations under the License.
  16  *
  17  *******************************************************************************/
  18 package handlers
  19
  20 import (
  21         "e2mgr/logger"
  22         "fmt"
  23         "strings"
  24         "testing"
  25 )
  26
  27 /*
  28  * Create and pack an x2ap setup request.
  29  * Verify the packed representation matches the want value.
  30  */
  31 func TestPackEndcX2apSetupRequest(t *testing.T) {
  32         logger, _ := logger.InitLogger(logger.InfoLevel)
  33         pLMNId := []byte{0xbb, 0xbc, 0xcc}
  34
  35         var testCases = []struct {
  36                 eNBId []byte
  37                 eNBIdBitqty  uint
  38                 packedPdu        string
  39         }{
  40                 {
  41                         eNBId :[]byte{0xab, 0xcd, 0x2}, /*00000010 -> 10000000*/
  42                         eNBIdBitqty: shortMacro_eNB_ID,
  43                         packedPdu: "0024003200000100f4002b0000020015000900bbbccc8003abcd8000fa0017000001f700bbbcccabcd80000000bbbccc000000000001",
  44                 },
  45
  46                 {
  47                         eNBId :[]byte{0xab, 0xcd, 0xe},
  48                         eNBIdBitqty: macro_eNB_ID,
  49                         packedPdu: "0024003100000100f4002a0000020015000800bbbccc00abcde000fa0017000001f700bbbcccabcde0000000bbbccc000000000001",
  50                 },
  51                 {
  52                         eNBId :[]byte{0xab, 0xcd, 0x7}, /*00000111 -> 00111000*/
  53                         eNBIdBitqty: longMacro_eNB_ID,
  54                         //packedPdu: "0024003200000100f4002b0000020015000900bbbccc8103abcd3800fa0017000001f700bbbcccabcd38000000bbbccc000000000001",
  55                         packedPdu: "0024003200000100f4002b0000020015000900bbbcccc003abcd3800fa0017000001f700bbbcccabcd38000000bbbccc000000000001",
  56                 },
  57                 {
  58                         eNBId :[]byte{0xab, 0xcd, 0xef, 0x8},
  59                         eNBIdBitqty: home_eNB_ID,
  60                         packedPdu: "0024003200000100f4002b0000020015000900bbbccc40abcdef8000fa0017000001f700bbbcccabcdef800000bbbccc000000000001",
  61                 },
  62
  63
  64         }
  65
  66         for _, tc := range testCases {
  67                 t.Run(tc.packedPdu, func(t *testing.T) {
  68
  69                         payload, err := packEndcX2apSetupRequest(logger, MaxAsn1CodecAllocationBufferSize /*allocation buffer*/, MaxAsn1PackedBufferSize /*max packed buffer*/, MaxAsn1CodecMessageBufferSize /*max message buffer*/, pLMNId[:], tc.eNBId[:], tc.eNBIdBitqty)
  70                         if err != nil {
  71                                 t.Errorf("want: success, got: pack failed. Error: %v\n", err)
  72                         } else {
  73                                 t.Logf("packed X2AP setup request(size=%d): %x\n", len(payload), payload)
  74                                 tmp := fmt.Sprintf("%x", payload)
  75                                 if len(tmp) != len(tc.packedPdu) {
  76                                         t.Errorf("want packed len:%d, got: %d\n", len(tc.packedPdu)/2, len(payload)/2)
  77                                 }
  78
  79                                 if strings.Compare(tmp, tc.packedPdu) != 0 {
  80                                         t.Errorf("\nwant :\t[%s]\n got: \t\t[%s]\n", tc.packedPdu, tmp)
  81                                 }
  82                         }
  83                 })
  84         }
  85 }
  86
  87 /*Packing error*/
  88
  89 func TestPackEndcX2apSetupRequestPackError(t *testing.T) {
  90         logger, _ := logger.InitLogger(logger.InfoLevel)
  91
  92         wantError := "packing error: #src/asn1codec_utils.c.pack_pdu_aux - Encoded output of E2AP-PDU, is too big:53"
  93
  94          _, err := packEndcX2apSetupRequest(logger, MaxAsn1CodecAllocationBufferSize /*allocation buffer*/, 40 /*max packed buffer*/, MaxAsn1CodecMessageBufferSize /*max message buffer*/, pLMNId[:], eNBId[:],eNBIdBitqty)
  95         if err != nil {
  96                 if 0 != strings.Compare(fmt.Sprintf("%s", err), wantError) {
  97                         t.Errorf("want failure: %s, got: %s", wantError, err)
  98                 }
  99         } else {
 100                 t.Errorf("want failure: %s, got: success", wantError)
 101
 102         }
 103 }