syzkaller-ros/prog/encoding_test.go
Dmitry Vyukov ffe7e17368 prog, sys: move types to prog
Large overhaul moves syscalls and arg types from sys to prog.
Sys package now depends on prog and contains only generated
descriptions of syscalls.
Introduce prog.Target type that encapsulates all targer properties,
like syscall list, ptr/page size, etc. Also moves OS-dependent pieces
like mmap call generation from prog to sys.

Update #191
2017-09-05 15:52:42 +02:00

129 lines
2.7 KiB
Go

// Copyright 2016 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 prog_test
import (
"fmt"
"reflect"
"regexp"
"sort"
"testing"
. "github.com/google/syzkaller/prog"
_ "github.com/google/syzkaller/sys"
)
func setToArray(s map[string]struct{}) []string {
a := make([]string, 0, len(s))
for c := range s {
a = append(a, c)
}
sort.Strings(a)
return a
}
func TestCallSet(t *testing.T) {
tests := []struct {
prog string
ok bool
calls []string
}{
{
"",
false,
[]string{},
},
{
"r0 = (foo)",
false,
[]string{},
},
{
"getpid()",
true,
[]string{"getpid"},
},
{
"r11 = getpid()",
true,
[]string{"getpid"},
},
{
"getpid()\n" +
"open(0x1, something that this package may not understand)\n" +
"getpid()\n" +
"#read()\n" +
"\n" +
"close$foo(&(0x0000) = {})\n",
true,
[]string{"getpid", "open", "close$foo"},
},
}
for i, test := range tests {
t.Run(fmt.Sprint(i), func(t *testing.T) {
calls, err := CallSet([]byte(test.prog))
if err != nil && test.ok {
t.Fatalf("parsing failed: %v", err)
}
if err == nil && !test.ok {
t.Fatalf("parsing did not fail")
}
callArray := setToArray(calls)
sort.Strings(test.calls)
if !reflect.DeepEqual(callArray, test.calls) {
t.Fatalf("got call set %+v, expect %+v", callArray, test.calls)
}
})
}
}
func TestCallSetRandom(t *testing.T) {
rs, iters := InitTest(t)
for i := 0; i < iters; i++ {
p := Generate(rs, 10, nil)
calls0 := make(map[string]struct{})
for _, c := range p.Calls {
calls0[c.Meta.Name] = struct{}{}
}
calls1, err := CallSet(p.Serialize())
if err != nil {
t.Fatalf("CallSet failed: %v", err)
}
callArray0 := setToArray(calls0)
callArray1 := setToArray(calls1)
if !reflect.DeepEqual(callArray0, callArray1) {
t.Fatalf("got call set:\n%+v\nexpect:\n%+v", callArray1, callArray0)
}
}
}
func TestDeserialize(t *testing.T) {
tests := []struct {
data string
err *regexp.Regexp
}{
{
"syz_test$struct(&(0x7f0000000000)={0x0, {0x0}})",
nil,
},
{
"syz_test$struct(&(0x7f0000000000)=0x0)",
regexp.MustCompile(`bad const type.*`),
},
}
for _, test := range tests {
_, err := Deserialize([]byte(test.data))
if err != nil {
if test.err == nil {
t.Fatalf("deserialization failed with\n%s\ndata:\n%s\n", err, test.data)
}
if !test.err.MatchString(err.Error()) {
t.Fatalf("deserialization failed with\n%s\nwhich doesn't match\n%s\ndata:\n%s\n", err, test.err, test.data)
}
} else if test.err != nil {
t.Fatalf("deserialization should have failed with:\n%s\ndata:\n%s\n", test.err, test.data)
}
}
}