Adds test about decoder against too many layers

diff --git a/tests/decode-too-many-layers/README.md b/tests/decode-too-many-layers/README.md
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+++ b/tests/decode-too-many-layers/README.md
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+# Description
+
+Test decode against too many recursive layers
+
+# PCAP
+
+The pcap comes from funning fuzzpcap against the file produced by ethmpls.py

diff --git a/tests/decode-too-many-layers/ethmpls.py b/tests/decode-too-many-layers/ethmpls.py
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+++ b/tests/decode-too-many-layers/ethmpls.py
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+import sys
+
+# write header
+sys.stdout.buffer.write(b"FPC\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00")
+for i in range(32):
+    # ethernet layer with mpls following
+    sys.stdout.buffer.write(b"\x01\x02\x03\x04\x05\x06\x01\x02\x03\x04\x05\x07\x88\x47")
+    # mpls layer with ethernet following
+    sys.stdout.buffer.write(b"\x00\x01\x01\x00\x00\x00\x00\x00")
+# write footer
+sys.stdout.buffer.write(b"FPC0")

diff --git a/tests/decode-too-many-layers/input.pcap b/tests/decode-too-many-layers/input.pcap
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index 0000000..1e40a80
Binary files /dev/null and b/tests/decode-too-many-layers/input.pcap differ

diff --git a/tests/decode-too-many-layers/test.yaml b/tests/decode-too-many-layers/test.yaml
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+++ b/tests/decode-too-many-layers/test.yaml
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+requires:
+  features:
+    - HAVE_LIBJANSSON
+  min-version: 5
+
+# disables checksum verification
+args:
+- -k none
+
+checks:
+    - stats:
+        decoder.too_many_layers: 1