From 89564aaaa618b6d85892c13080401c05c2bfbeee Mon Sep 17 00:00:00 2001
From: Hsiao-Wei Wang <hsiaowei.eth@gmail.com>
Date: Tue, 12 Mar 2024 21:51:58 +0800
Subject: [PATCH] Add unittest to check `FIELD_ELEMENTS_PER_EXT_BLOB` value

---
 .../test/eip7594/unittests/test_config_invariants.py | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 tests/core/pyspec/eth2spec/test/eip7594/unittests/test_config_invariants.py

diff --git a/tests/core/pyspec/eth2spec/test/eip7594/unittests/test_config_invariants.py b/tests/core/pyspec/eth2spec/test/eip7594/unittests/test_config_invariants.py
new file mode 100644
index 000000000..20baca8bf
--- /dev/null
+++ b/tests/core/pyspec/eth2spec/test/eip7594/unittests/test_config_invariants.py
@@ -0,0 +1,12 @@
+from eth2spec.test.context import (
+    single_phase,
+    spec_test,
+    with_eip7594_and_later,
+)
+
+
+@with_eip7594_and_later
+@spec_test
+@single_phase
+def test_polynomical_commitments_sampling(spec):
+    assert spec.FIELD_ELEMENTS_PER_EXT_BLOB == 2 * spec.FIELD_ELEMENTS_PER_BLOB