1// Copyright 2018 Google Inc. All rights reserved.
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15package symbol_inject
16
17import (
18	"strconv"
19	"testing"
20)
21
22func TestElfSymbolTable(t *testing.T) {
23	testCases := []struct {
24		file         *mockElfFile
25		symbol       string
26		offset, size uint64
27	}{
28		{
29			file:   elfSymbolTable1,
30			symbol: "soong_build_number",
31			offset: 0x1030,
32			size:   128,
33		},
34		{
35			file:   elfSymbolTable2,
36			symbol: "symbol1",
37			offset: 0x1030,
38			size:   128,
39		},
40		{
41			file:   elfSymbolTable2,
42			symbol: "symbol2",
43			offset: 0x10b0,
44			size:   128,
45		},
46	}
47
48	for i, testCase := range testCases {
49		t.Run(strconv.Itoa(i), func(t *testing.T) {
50			file, err := extractElfSymbols(testCase.file)
51			if err != nil {
52				t.Error(err.Error())
53			}
54			offset, size, err := findSymbol(file, testCase.symbol)
55			if err != nil {
56				t.Error(err.Error())
57			}
58			if offset != testCase.offset || size != testCase.size {
59				t.Errorf("expected %x:%x, got %x:%x", testCase.offset, testCase.size, offset, size)
60			}
61		})
62	}
63}
64