move non-conformance tests and protos into upb/test/
create upb/test/BUILD
PiperOrigin-RevId: 492534429
diff --git a/upb/test/fuzz_util.h b/upb/test/fuzz_util.h
new file mode 100644
index 0000000..301dfcb
--- /dev/null
+++ b/upb/test/fuzz_util.h
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2009-2022, Google LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Google LLC nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL Google LLC BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef UPB_TEST_FUZZ_UTIL_H_
+#define UPB_TEST_FUZZ_UTIL_H_
+
+#include <string>
+#include <vector>
+
+#include "upb/mini_table/extension_registry.h"
+#include "upb/mini_table/types.h"
+
+namespace upb {
+namespace fuzz {
+
+struct MiniTableFuzzInput {
+ // MiniDescripotrs for N messages, in the format accepted by
+ // upb_MiniTable_Build().
+ std::vector<std::string> mini_descriptors;
+
+ // MiniDescripotrs for N enums, in the format accepted by
+ // upb_MiniTableEnum_Build().
+ std::vector<std::string> enum_mini_descriptors;
+
+ // A MiniDescriptor for N extensions, in the format accepted by
+ // upb_MiniTableExtension_Build().
+ std::string extensions;
+
+ // Integer indexes into the message or enum mini tables lists. These specify
+ // which message or enum to use for each sub-message or enum field. We mod
+ // by the total number of enums or messages so that any link value can be
+ // valid.
+ std::vector<uint32_t> links;
+};
+
+// Builds an arbitrary mini table corresponding to the random data in `input`.
+// This function should be capable of producing any mini table that can
+// successfully build, and any topology of messages and enums (including
+// cycles).
+//
+// As currently written, it effectively fuzzes the mini descriptor parser also,
+// and can therefore trigger any bugs in that parser. To better isolate these
+// two, we may want to change this implementation to use the mini descriptor
+// builder API so we are producing mini descriptors in a known good format. That
+// would mostly eliminate the chance of crashing the mini descriptor parser
+// itself.
+//
+// TODO: maps. If we give maps some space in the regular encoding instead of
+// using a separate function, we could get that for free.
+const upb_MiniTable* BuildMiniTable(const MiniTableFuzzInput& input,
+ upb_ExtensionRegistry** exts,
+ upb_Arena* arena);
+
+} // namespace fuzz
+} // namespace upb
+
+#endif // UPB_TEST_FUZZ_UTIL_H_
