gitlab.com/apertussolutions/u-root@v7.0.0+incompatible/cmds/exp/bzimage/bzimage_test.go (about) 1 // Copyright 2017-2018 the u-root Authors. All rights reserved 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 package main 6 7 import ( 8 "io/ioutil" 9 "os" 10 "path/filepath" 11 "syscall" 12 "testing" 13 14 "github.com/u-root/u-root/pkg/boot/bzimage" 15 "github.com/u-root/u-root/pkg/testutil" 16 ) 17 18 var ( 19 // Test BzImage we are not using yet. 20 b = bzimage.BzImage{ 21 BootCode: []byte{1, 2, 3, 4}, 22 KernelCode: []byte{5, 6, 7, 8}, 23 KernelBase: 0x100000, 24 KernelOffset: 620, 25 Header: bzimage.LinuxHeader{ 26 MBRCode: [192]byte{ 27 0xea, 0x05, 0x00, 0xc0, 0x07, 0x8c, 0xc8, 0x8e, 28 0xd8, 0x8e, 0xc0, 0x8e, 0xd0, 0x31, 0xe4, 0xfb, 29 0xfc, 0xbe, 0x2d, 0x00, 0xac, 0x20, 0xc0, 0x74, 30 0x09, 0xb4, 0x0e, 0xbb, 0x07, 0x00, 0xcd, 0x10, 31 0xeb, 0xf2, 0x31, 0xc0, 0xcd, 0x16, 0xcd, 0x19, 32 0xea, 0xf0, 0xff, 0x00, 0xf0, 0x55, 0x73, 0x65, 33 0x20, 0x61, 0x20, 0x62, 0x6f, 0x6f, 0x74, 0x20, 34 0x6c, 0x6f, 0x61, 0x64, 0x65, 0x72, 0x2e, 0x0d, 35 0x0a, 0x0a, 0x52, 0x65, 0x6d, 0x6f, 0x76, 0x65, 36 0x20, 0x64, 0x69, 0x73, 0x6b, 0x20, 0x61, 0x6e, 37 0x64, 0x20, 0x70, 0x72, 0x65, 0x73, 0x73, 0x20, 38 0x61, 0x6e, 0x79, 0x20, 0x6b, 0x65, 0x79, 0x20, 39 0x74, 0x6f, 0x20, 0x72, 0x65, 0x62, 0x6f, 0x6f, 40 0x74, 0x2e, 0x2e, 0x2e, 0x0d, 0x0a, 0x00, 0x00, 41 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 42 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 43 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 44 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 45 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 46 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 47 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 48 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 49 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 50 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, 51 ExtRamdiskImage: 00, 52 ExtRamdiskSize: 00, 53 ExtCmdlinePtr: 00, 54 SetupSects: 0x1e, 55 RootFlags: 0x01, 56 Syssize: 0xb51d, 57 RamSize: 0x00, 58 Vidmode: 0xffff, 59 RootDev: 0x00, 60 Bootsectormagic: 0xaa55, 61 Jump: 0x66eb, 62 HeaderMagic: [4]byte{0x48, 0x64, 0x72, 0x53}, 63 Protocolversion: 0x20d, 64 RealModeSwitch: 0x00, 65 StartSys: 0x1000, 66 Kveraddr: 0x3140, 67 TypeOfLoader: 0x00, 68 Loadflags: 0x01, 69 Setupmovesize: 0x8000, 70 Code32Start: 0x100000, 71 RamDiskImage: 0x00, 72 RamDiskSize: 0x00, 73 BootSectKludge: [4]uint8{}, 74 Heapendptr: 0x5320, 75 ExtLoaderVer: 0x00, 76 ExtLoaderType: 0x00, 77 Cmdlineptr: 0x00, 78 InitrdAddrMax: 0x7fffffff, 79 Kernelalignment: 0x200000, 80 RelocatableKernel: 0x00, 81 MinAlignment: 0x15, 82 XLoadFlags: 0x01, 83 CmdLineSize: 0x7ff, 84 HardwareSubArch: 0x00, 85 HardwareSubArchData: 0x00, 86 PayloadOffset: 0x255, 87 PayloadSize: 0x9532c, 88 SetupData: 0x00, 89 PrefAddress: 0x1000000, 90 InitSize: 0x6e0000, 91 HandoverOffset: 0x00, 92 }, 93 } 94 uskip = len("2018/08/10 21:20:42 ") 95 ) 96 97 func TestSimple(t *testing.T) { 98 tmpDir, err := ioutil.TempDir("", "bzImage") 99 if err != nil { 100 t.Fatal(err) 101 } 102 defer os.RemoveAll(tmpDir) 103 104 var tests = []struct { 105 args []string 106 name string 107 status int 108 out string 109 skip int 110 }{ 111 { 112 args: []string{"initramfs", "bzImage", "init.cpio", "zz/zz/zz"}, 113 name: "too big initramfs", 114 status: 1, 115 out: "new initramfs is 1536 bytes, won't fit in 480 byte old one\n", 116 skip: uskip, 117 }, 118 { 119 args: []string{"initramfs", "bzImage", "/dev/null", "zz/zz/zz"}, 120 name: "Bad output file", 121 status: 1, 122 out: "open zz/zz/zz: no such file or directory\n", 123 skip: uskip, 124 }, 125 { 126 args: []string{"initramfs", "bzImage", "/dev/null", filepath.Join(tmpDir, "zz")}, 127 name: "correct initramfs test", 128 status: 0, 129 out: "", 130 }, 131 { 132 args: []string{}, 133 name: "no args", 134 status: 1, 135 out: cmdUsage + "\n", 136 skip: uskip, 137 }, 138 { 139 args: []string{"dump", "bzImage"}, 140 name: "dump", 141 status: 0, 142 out: "MBRCode:0xea0500c0078cc88ed88ec08ed031e4fbfcbe2d00ac20c07409b40ebb0700cd10ebf231c0cd16cd19eaf0ff00f0557365206120626f6f74206c6f616465722e0d0a0a52656d6f7665206469736b20616e6420707265737320616e79206b657920746f207265626f6f742e2e2e0d0a00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\nExtRamdiskImage:0x00\nExtRamdiskSize:0x00\nExtCmdlinePtr:0x00\nO:0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000ffff\nSetupSects:0x1e\nRootFlags:0x01\nSyssize:0xb51d\nRamSize:0x00\nVidmode:0xffff\nRootDev:0x00\nBootsectormagic:0xaa55\nJump:0x66eb\nHeaderMagic:0x48647253\nProtocolversion:0x20d\nRealModeSwitch:0x00\nStartSys:0x1000\nKveraddr:0x3140\nTypeOfLoader:0x00\nLoadflags:0x01\nSetupmovesize:0x8000\nCode32Start:0x100000\nRamDiskImage:0x00\nRamDiskSize:0x00\nBootSectKludge:0x00000000\nHeapendptr:0x5320\nExtLoaderVer:0x00\nExtLoaderType:0x00\nCmdlineptr:0x00\nInitrdAddrMax:0x7fffffff\nKernelalignment:0x200000\nRelocatableKernel:0x00\nMinAlignment:0x15\nXLoadFlags:0x01\nCmdLineSize:0x7ff\nHardwareSubArch:0x00\nHardwareSubArchData:0x00\nPayloadOffset:0x255\nPayloadSize:0x9532c\nSetupData:0x00\nPrefAddress:0x1000000\nInitSize:0x6e0000\nHandoverOffset:0x00\n", 143 }, 144 { 145 args: []string{"initramfs"}, 146 name: "initramfs with no args", 147 status: 1, 148 out: cmdUsage + "\n", 149 skip: uskip, 150 }, 151 { 152 args: []string{"initramfs", "a", "b", "c", "too many"}, 153 name: "initramfs with too many args", 154 status: 1, 155 out: cmdUsage + "\n", 156 skip: uskip, 157 }, 158 { 159 args: []string{"initramfs", "a", "b", "c"}, 160 name: "initramfs with bad input file", 161 status: 1, 162 out: "open a: no such file or directory\n", 163 skip: uskip, 164 }, 165 { 166 args: []string{"initramfs", "bzImage", "b", "c"}, 167 name: "initramfs with bad initramfs file", 168 status: 1, 169 out: "open b: no such file or directory\n", 170 skip: uskip, 171 }, 172 } 173 174 // Table-driven testing 175 for _, tt := range tests { 176 t.Run(tt.name, func(t *testing.T) { 177 c := testutil.Command(t, tt.args...) 178 c.Dir = "../../../pkg/boot/bzimage/testdata" 179 // ignore the error, we deal with it via process status, 180 // and most of these commands are supposed to get an error. 181 out, _ := c.CombinedOutput() 182 status := c.ProcessState.Sys().(syscall.WaitStatus).ExitStatus() 183 if tt.status != status { 184 t.Errorf("err got: %v want %v", status, tt.status) 185 } 186 m := string(out[tt.skip:]) 187 if m != tt.out { 188 t.Errorf("got:'%q'(%d bytes)want:'%q'(%d bytes)", m, len(m), tt.out, len(tt.out)) 189 } 190 }) 191 } 192 } 193 194 func TestMain(m *testing.M) { 195 testutil.Run(m, main) 196 }