#Centipede Always load any seed inputs from the target.

PiperOrigin-RevId: 679578077
google · Sep 27, 2024 · 9bca69d · 9bca69d
1 parent 911cd9c
commit 9bca69d
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Showing 2 changed files with 7 additions and 3 deletions.
diff --git a/centipede/centipede.cc b/centipede/centipede.cc
@@ -723,7 +723,11 @@ void Centipede::FuzzingLoop() {
   auto features_file = DefaultBlobFileWriterFactory(env_.riegeli);
   CHECK_OK(features_file->Open(features_path, "a"));
 
-  LoadSeedInputs(corpus_file.get(), features_file.get());
+  // Load seed corpus when there is no external corpus loaded.
+  if (corpus_.NumTotal() == 0) {
+    LoadSeedInputs(corpus_file.get(), features_file.get());
+  }
+
   UpdateAndMaybeLogStats("init-done", 0);
 
   // If we're going to fuzz, dump the initial telemetry files. For a brand-new

diff --git a/centipede/centipede_test.cc b/centipede/centipede_test.cc
@@ -190,8 +190,8 @@ TEST(Centipede, ReadFirstCorpusDir) {
   CentipedeMock mock_2(env);
   MockFactory factory_2(mock_2);
   CentipedeMain(env, factory_2);
-  // Should observe all inputs in corpus_dir, plus the seed input {0}.
-  EXPECT_EQ(mock_2.num_inputs_, 512 + 1);
+  // Should observe all inputs in corpus_dir.
+  EXPECT_EQ(mock_2.num_inputs_, 512);
 }
 
 TEST(Centipede, DoesNotReadFirstCorpusDirIfOutputOnly) {