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// Copyright 2020 syzkaller project authors. All rights reserved.
// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
package compiler
import (
"io/ioutil"
"os"
"path/filepath"
"testing"
"github.com/google/go-cmp/cmp"
)
func TestConstFile(t *testing.T) {
type arch struct {
consts map[string]uint64
undefined map[string]bool
oldFormat string
}
arches := map[string]arch{
"arch1": {
consts: map[string]uint64{
"CONST1_ALL_DIFFERENT": 11,
"CONST2_ALL_THE_SAME": 3,
"CONST3_SOME_UNDEFINED": 100,
"CONST5_SOME_UNDEFINED2": 100,
},
undefined: map[string]bool{
"CONST4_ALL_UNDEFINED": true,
},
oldFormat: `
CONST1_ALL_DIFFERENT = 11
CONST2_ALL_THE_SAME = 3
CONST3_SOME_UNDEFINED = 100
CONST5_SOME_UNDEFINED2 = 100
# CONST4_ALL_UNDEFINED is not set
`,
},
"arch2": {
consts: map[string]uint64{
"CONST1_ALL_DIFFERENT": 22,
"CONST2_ALL_THE_SAME": 3,
"CONST5_SOME_UNDEFINED2": 100,
},
undefined: map[string]bool{
"CONST4_ALL_UNDEFINED": true,
"CONST3_SOME_UNDEFINED": true,
},
oldFormat: `
CONST1_ALL_DIFFERENT = 22
CONST2_ALL_THE_SAME = 3
# CONST3_SOME_UNDEFINED is not set
CONST5_SOME_UNDEFINED2 = 100
# CONST4_ALL_UNDEFINED is not set
`,
},
"arch3": {
consts: map[string]uint64{
"CONST1_ALL_DIFFERENT": 33,
"CONST2_ALL_THE_SAME": 3,
},
undefined: map[string]bool{
"CONST4_ALL_UNDEFINED": true,
"CONST3_SOME_UNDEFINED": true,
"CONST5_SOME_UNDEFINED2": true,
},
oldFormat: `
CONST1_ALL_DIFFERENT = 33
CONST2_ALL_THE_SAME = 3
# CONST3_SOME_UNDEFINED is not set
# CONST5_SOME_UNDEFINED2 is not set
# CONST4_ALL_UNDEFINED is not set
`,
},
}
const serialized = `# Code generated by syz-sysgen. DO NOT EDIT.
arches = arch1, arch2, arch3
CONST1_ALL_DIFFERENT = arch1:11, arch2:22, arch3:33
CONST2_ALL_THE_SAME = 3
CONST3_SOME_UNDEFINED = arch1:100, arch2:arch3:???
CONST4_ALL_UNDEFINED = ???
CONST5_SOME_UNDEFINED2 = 100, arch3:???
`
cf := NewConstFile()
for name, arch := range arches {
cf.AddArch(name, arch.consts, arch.undefined)
}
data := cf.Serialize()
if diff := cmp.Diff(serialized, string(data)); diff != "" {
t.Fatal(diff)
}
{
file, err := ioutil.TempFile("", "syz-const")
if err != nil {
t.Fatal(err)
}
defer file.Close()
defer os.Remove(file.Name())
if _, err := file.Write(data); err != nil {
t.Fatal(err)
}
file.Close()
cf1 := DeserializeConstFile(file.Name(), nil)
for name, arch := range arches {
if diff := cmp.Diff(arch.consts, cf1.Arch(name)); diff != "" {
t.Errorf("%v: %v", name, diff)
}
}
}
{
dir, err := ioutil.TempDir("", "syz-const")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(dir)
for name, arch := range arches {
file := filepath.Join(dir, "consts_"+name+".const")
if err := ioutil.WriteFile(file, []byte(arch.oldFormat), 0600); err != nil {
t.Fatal(err)
}
}
cf1 := DeserializeConstFile(filepath.Join(dir, "*"), nil)
for name, arch := range arches {
if diff := cmp.Diff(arch.consts, cf1.Arch(name)); diff != "" {
t.Errorf("%v: %v", name, diff)
}
}
}
}
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