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      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 
     15 package main
     16 
     17 import (
     18 	"debug/macho"
     19 	"strconv"
     20 	"testing"
     21 )
     22 
     23 func 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