diff --git a/tests/fixtures/grgsm_decode_decrypt1_expected b/tests/fixtures/grgsm_decode_decrypt1_expected
new file mode 100644
index 0000000..378b495
--- /dev/null
+++ b/tests/fixtures/grgsm_decode_decrypt1_expected
@@ -0,0 +1,12 @@
+862210 1331352:  03 03 01 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b
+862242 1332356:  00 01 03 03 49 06 1d 9f 6d 18 10 80 00 00 00 00 00 00 00 00 00 00 00
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+862312 1331350:  03 20 0d 06 35 11 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b
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+862567 1331345:  03 03 01 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b