CL for perf tryjob on linux

third_party/cld/encodings/compact_enc_det/compact_enc_det_fuzz_test.cc

Index: third_party/cld/encodings/compact_enc_det/compact_enc_det_fuzz_test.cc
diff --git a/third_party/cld/encodings/compact_enc_det/compact_enc_det_fuzz_test.cc b/third_party/cld/encodings/compact_enc_det/compact_enc_det_fuzz_test.cc
new file mode 100644
index 0000000000000000000000000000000000000000..b214f9818c069807e4838dc77fbb83e32684be26
--- /dev/null
+++ b/third_party/cld/encodings/compact_enc_det/compact_enc_det_fuzz_test.cc
@@ -0,0 +1,36 @@
+#include <stddef.h>
+#include <stdlib.h>
+#include <memory>
+
+#include "i18n/encodings/compact_enc_det/compact_enc_det.h"
+#include "i18n/encodings/public/encodings.h"
+#include "i18n/languages/public/languages.h"
+#include "testing/base/public/gunit.h"
+
+namespace {
+
+class CompactEncDetFuzzTest : public testing::Test {};
+
+TEST_F(CompactEncDetFuzzTest, TestRandom) {
+  for (size_t i = 0; i < 16384; ++i) {
+    unsigned int seed = i;
+    size_t length = static_cast<size_t>(rand_r(&seed)) % 1024;
+    std::unique_ptr<char[]> text(new char[length]);
+
+    for (size_t j = 0; j < length; ++j) text[j] = rand_r(&seed);
+
+    int bytes_consumed;
+    bool is_reliable;
+
+    CompactEncDet::DetectEncoding(text.get(), length, nullptr,  // URL hint
+                                  nullptr,                      // HTTP hint
+                                  nullptr,                      // Meta hint
+                                  UNKNOWN_ENCODING,
+                                  i18n::languages::UNKNOWN_LANGUAGE,
+                                  CompactEncDet::WEB_CORPUS,
+                                  false,  // Include 7-bit encodings?
+                                  &bytes_consumed, &is_reliable);
+  }
+}
+
+}  // namespace