E2Manager/e2pdus/x2_setup_request_test.go

   1 /*
   2  *   Copyright (c) 2019 AT&T Intellectual Property.
   3  *
   4  *   Licensed under the Apache License, Version 2.0 (the "License");
   5  *   you may not use this file except in compliance with the License.
   6  *   You may obtain a copy of the License at
   7  *
   8  *       http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  *   Unless required by applicable law or agreed to in writing, software
  11  *   distributed under the License is distributed on an "AS IS" BASIS,
  12  *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  *   See the License for the specific language governing permissions and
  14  *   limitations under the License.
  15  */
  16
  17 /*
  18  * This source code is part of the near-RT RIC (RAN Intelligent Controller)
  19  * platform project (RICP).
  20  */
  21
  22 package e2pdus
  23
  24 import (
  25         "fmt"
  26         "strings"
  27         "testing"
  28 )
  29
  30 /*
  31  * Create and pack an x2ap setup request.
  32  * Verify the packed representation matches the want value.
  33  */
  34 func TestPackX2apSetupRequest(t *testing.T) {
  35         pLMNId := []byte{0xbb, 0xbc, 0xcc}
  36         ricFlag := []byte{0xbb, 0xbc, 0xcc} /*pLMNId [3]bytes*/
  37
  38         var testCases = []struct {
  39                 eNBId       []byte
  40                 eNBIdBitqty uint
  41                 packedPdu   string
  42         }{
  43                 {
  44                         eNBId:       []byte{0xab, 0xcd, 0x2}, /*00000010 -> 10000000*/
  45                         eNBIdBitqty: ShortMacro_eNB_ID,
  46                         packedPdu:   "0006002b0000020015000900bbbccc8003abcd8000140017000001f700bbbcccabcd80000000bbbccc000000000001",
  47                 },
  48
  49                 {
  50                         eNBId:       []byte{0xab, 0xcd, 0xe},
  51                         eNBIdBitqty: Macro_eNB_ID,
  52                         packedPdu:   "0006002a0000020015000800bbbccc00abcde000140017000001f700bbbcccabcde0000000bbbccc000000000001",
  53                 },
  54                 {
  55                         eNBId:       []byte{0xab, 0xcd, 0x7}, /*00000111 -> 00111000*/
  56                         eNBIdBitqty: LongMacro_eNB_ID,
  57                         //packedPdu:   "0006002b0000020015000900bbbccc8103abcd3800140017000001f700bbbcccabcd38000000bbbccc000000000001",
  58                         packedPdu:   "0006002b0000020015000900bbbcccc003abcd3800140017000001f700bbbcccabcd38000000bbbccc000000000001",
  59                 },
  60                 {
  61                         eNBId:       []byte{0xab, 0xcd, 0xef, 0x8},
  62                         eNBIdBitqty: Home_eNB_ID,
  63                         packedPdu:   "0006002b0000020015000900bbbccc40abcdef8000140017000001f700bbbcccabcdef800000bbbccc000000000001",
  64                 },
  65         }
  66
  67         // TODO: Consider using testify's assert/require
  68         // testing/quick to input random value
  69         for _, tc := range testCases {
  70                 t.Run(tc.packedPdu, func(t *testing.T) {
  71
  72                         payload, _, err := preparePackedX2SetupRequest(MaxAsn1PackedBufferSize /*max packed buffer*/, MaxAsn1CodecMessageBufferSize /*max message buffer*/, pLMNId, tc.eNBId, tc.eNBIdBitqty,ricFlag)
  73                         if err != nil {
  74                                 t.Errorf("want: success, got: pack failed. Error: %v\n", err)
  75                         } else {
  76                                 t.Logf("packed X2AP setup request(size=%d): %x\n", len(payload), payload)
  77                                 tmp := fmt.Sprintf("%x", payload)
  78                                 if len(tmp) != len(tc.packedPdu) {
  79                                         t.Errorf("want packed len:%d, got: %d\n", len(tc.packedPdu)/2, len(payload)/2)
  80                                 }
  81
  82                                 if strings.Compare(tmp, tc.packedPdu) != 0 {
  83                                         t.Errorf("\nwant :\t[%s]\n got: \t\t[%s]\n", tc.packedPdu, tmp)
  84                                 }
  85                         }
  86                 })
  87         }
  88 }
  89
  90 /*Packing error*/
  91
  92 func TestPackX2apSetupRequestPackError(t *testing.T) {
  93
  94         wantError := "packing error: #src/asn1codec_utils.c.pack_pdu_aux - Encoded output of E2AP-PDU, is too big:46"
  95         pLMNId := []byte{0xbb, 0xbc, 0xcc}
  96         ricFlag := []byte{0xbb, 0xbc, 0xcc} /*pLMNId [3]bytes*/
  97         eNBId := []byte{0xab, 0xcd, 0xe}
  98         eNBIdBitqty := uint(Macro_eNB_ID)
  99         _, _, err := preparePackedX2SetupRequest(40 /*max packed buffer*/, MaxAsn1CodecMessageBufferSize /*max message buffer*/, pLMNId, eNBId, eNBIdBitqty, ricFlag)
 100         if err != nil {
 101                 if 0 != strings.Compare(fmt.Sprintf("%s", err), wantError) {
 102                         t.Errorf("want failure: %s, got: %s", wantError, err)
 103                 }
 104         } else {
 105                 t.Errorf("want failure: %s, got: success", wantError)
 106
 107         }
 108 }