First commit

setup/e2mgr/E2Manager/e2pdus/x2_setup_request_test.go

@@ -0,0 +1,108 @@
+/*
+ *   Copyright (c) 2019 AT&T Intellectual Property.
+ *
+ *   Licensed under the Apache License, Version 2.0 (the "License");
+ *   you may not use this file except in compliance with the License.
+ *   You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *   Unless required by applicable law or agreed to in writing, software
+ *   distributed under the License is distributed on an "AS IS" BASIS,
+ *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *   See the License for the specific language governing permissions and
+ *   limitations under the License.
+ */
+
+/*
+ * This source code is part of the near-RT RIC (RAN Intelligent Controller)
+ * platform project (RICP).
+ */
+
+package e2pdus
+
+import (
+	"fmt"
+	"strings"
+	"testing"
+)
+
+/*
+ * Create and pack an x2ap setup request.
+ * Verify the packed representation matches the want value.
+ */
+func TestPackX2apSetupRequest(t *testing.T) {
+	pLMNId := []byte{0xbb, 0xbc, 0xcc}
+	ricFlag := []byte{0xbb, 0xbc, 0xcc} /*pLMNId [3]bytes*/
+
+	var testCases = []struct {
+		eNBId       []byte
+		eNBIdBitqty uint
+		packedPdu   string
+	}{
+		{
+			eNBId:       []byte{0xab, 0xcd, 0x2}, /*00000010 -> 10000000*/
+			eNBIdBitqty: ShortMacro_eNB_ID,
+			packedPdu:   "0006002b0000020015000900bbbccc8003abcd8000140017000001f700bbbcccabcd80000000bbbccc000000000001",
+		},
+
+		{
+			eNBId:       []byte{0xab, 0xcd, 0xe},
+			eNBIdBitqty: Macro_eNB_ID,
+			packedPdu:   "0006002a0000020015000800bbbccc00abcde000140017000001f700bbbcccabcde0000000bbbccc000000000001",
+		},
+		{
+			eNBId:       []byte{0xab, 0xcd, 0x7}, /*00000111 -> 00111000*/
+			eNBIdBitqty: LongMacro_eNB_ID,
+			//packedPdu:   "0006002b0000020015000900bbbccc8103abcd3800140017000001f700bbbcccabcd38000000bbbccc000000000001",
+			packedPdu:   "0006002b0000020015000900bbbcccc003abcd3800140017000001f700bbbcccabcd38000000bbbccc000000000001",
+		},
+		{
+			eNBId:       []byte{0xab, 0xcd, 0xef, 0x8},
+			eNBIdBitqty: Home_eNB_ID,
+			packedPdu:   "0006002b0000020015000900bbbccc40abcdef8000140017000001f700bbbcccabcdef800000bbbccc000000000001",
+		},
+	}
+
+	// TODO: Consider using testify's assert/require
+	// testing/quick to input random value
+	for _, tc := range testCases {
+		t.Run(tc.packedPdu, func(t *testing.T) {
+
+			payload, _, err := preparePackedX2SetupRequest(MaxAsn1PackedBufferSize /*max packed buffer*/, MaxAsn1CodecMessageBufferSize /*max message buffer*/, pLMNId, tc.eNBId, tc.eNBIdBitqty,ricFlag)
+			if err != nil {
+				t.Errorf("want: success, got: pack failed. Error: %v\n", err)
+			} else {
+				t.Logf("packed X2AP setup request(size=%d): %x\n", len(payload), payload)
+				tmp := fmt.Sprintf("%x", payload)
+				if len(tmp) != len(tc.packedPdu) {
+					t.Errorf("want packed len:%d, got: %d\n", len(tc.packedPdu)/2, len(payload)/2)
+				}
+
+				if strings.Compare(tmp, tc.packedPdu) != 0 {
+					t.Errorf("\nwant :\t[%s]\n got: \t\t[%s]\n", tc.packedPdu, tmp)
+				}
+			}
+		})
+	}
+}
+
+/*Packing error*/
+
+func TestPackX2apSetupRequestPackError(t *testing.T) {
+
+	wantError := "packing error: #src/asn1codec_utils.c.pack_pdu_aux - Encoded output of E2AP-PDU, is too big:46"
+	pLMNId := []byte{0xbb, 0xbc, 0xcc}
+	ricFlag := []byte{0xbb, 0xbc, 0xcc} /*pLMNId [3]bytes*/
+	eNBId := []byte{0xab, 0xcd, 0xe}
+	eNBIdBitqty := uint(Macro_eNB_ID)
+	_, _, err := preparePackedX2SetupRequest(40 /*max packed buffer*/, MaxAsn1CodecMessageBufferSize /*max message buffer*/, pLMNId, eNBId, eNBIdBitqty, ricFlag)
+	if err != nil {
+		if 0 != strings.Compare(fmt.Sprintf("%s", err), wantError) {
+			t.Errorf("want failure: %s, got: %s", wantError, err)
+		}
+	} else {
+		t.Errorf("want failure: %s, got: success", wantError)
+
+	}
+}