diff options
Diffstat (limited to 'prog/minimization_test.go')
| -rw-r--r-- | prog/minimization_test.go | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/prog/minimization_test.go b/prog/minimization_test.go index 6a3fb4e4e..37423f828 100644 --- a/prog/minimization_test.go +++ b/prog/minimization_test.go @@ -6,6 +6,8 @@ package prog import ( "math/rand" "testing" + + "github.com/google/syzkaller/pkg/hash" ) // nolint:gocyclo @@ -273,7 +275,15 @@ func TestMinimizeRandom(t *testing.T) { for _, mode := range []MinimizeMode{MinimizeCorpus, MinimizeCrash} { p := target.Generate(rs, 5, ct) copyP := p.Clone() + seen := make(map[string]bool) + seen[hash.String(p.Serialize())] = true minP, _ := Minimize(p, len(p.Calls)-1, mode, func(p1 *Prog, callIndex int) bool { + id := hash.String(p1.Serialize()) + if seen[id] { + t.Fatalf("program:\n%s\nobserved the same candidate twice:\n%s", + p.Serialize(), p1.Serialize()) + } + seen[id] = true if r.Intn(2) == 0 { return false } @@ -283,7 +293,7 @@ func TestMinimizeRandom(t *testing.T) { got := string(minP.Serialize()) want := string(copyP.Serialize()) if got != want { - t.Fatalf("program:\n%s\ngot:\n%v\nwant:\n%s", string(p.Serialize()), got, want) + t.Fatalf("program:\n%s\ngot:\n%s\nwant:\n%s", p.Serialize(), got, want) } } } |