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 "debug/macho" 19 "strconv" 20 "testing" 21) 22 23func TestMachoSymbolTable(t *testing.T) { 24 testCases := []struct { 25 file *macho.File 26 symbol string 27 offset, size uint64 28 }{ 29 { 30 file: machoSymbolTable1, 31 symbol: "soong_build_number", 32 offset: 0x1020, 33 size: 128, 34 }, 35 { 36 file: machoSymbolTable2, 37 symbol: "symbol1", 38 offset: 0x1020, 39 size: 128, 40 }, 41 { 42 file: machoSymbolTable2, 43 symbol: "symbol2", 44 offset: 0x10a0, 45 size: 128, 46 }, 47 } 48 49 for i, testCase := range testCases { 50 t.Run(strconv.Itoa(i), func(t *testing.T) { 51 file, err := extractMachoSymbols(testCase.file) 52 if err != nil { 53 t.Error(err.Error()) 54 } 55 offset, size, err := findSymbol(file, testCase.symbol) 56 if err != nil { 57 t.Error(err.Error()) 58 } 59 if offset != testCase.offset || size != testCase.size { 60 t.Errorf("expected %x:%x, got %x:%x", testCase.offset, testCase.size, offset, size) 61 } 62 }) 63 } 64} 65