fixeria has uploaded this change for review. (
https://gerrit.osmocom.org/c/osmocom-bb/+/14648
Change subject: trx_toolkit/data_msg.py: add burst randomization helpers
......................................................................
trx_toolkit/data_msg.py: add burst randomization helpers
Change-Id: Idf1393d3d1f04e6c60b356b797a18e6f77b23554
---
M src/target/trx_toolkit/data_msg.py
1 file changed, 30 insertions(+), 18 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmocom-bb refs/changes/48/14648/1
diff --git a/src/target/trx_toolkit/data_msg.py
b/src/target/trx_toolkit/data_msg.py
index 511f692..86d0827 100644
--- a/src/target/trx_toolkit/data_msg.py
+++ b/src/target/trx_toolkit/data_msg.py
@@ -82,6 +82,10 @@
def parse_burst(self, burst):
raise NotImplementedError
+ # Generate a random message specific burst
+ def rand_burst(self):
+ raise NotImplementedError
+
# Generates a random frame number
def rand_fn(self):
return random.randint(0, GSM_HYPERFRAME)
@@ -319,6 +323,14 @@
else:
self.burst = list(burst[:GSM_BURST_LEN])
+ # Generate a random message specific burst
+ def rand_burst(self, length = GSM_BURST_LEN):
+ self.burst = []
+
+ for i in range(length):
+ ubit = random.randint(0, 1)
+ self.burst.append(ubit)
+
# Transforms this message to TRX2L1 message
def gen_trx2l1(self):
# Allocate a new message
@@ -480,6 +492,14 @@
# Save
self.burst = burst_sbits
+ # Generate a random message specific burst
+ def rand_burst(self, length = GSM_BURST_LEN):
+ self.burst = []
+
+ for i in range(length):
+ sbit = random.randint(-127, 127)
+ self.burst.append(sbit)
+
# Transforms this message to L12TRX message
def gen_l12trx(self):
# Allocate a new message
@@ -499,28 +519,20 @@
log.basicConfig(level = log.DEBUG,
format = "[%(levelname)s] %(filename)s:%(lineno)d %(message)s")
- # Generate two random bursts
- burst_l12trx_ref = []
- burst_trx2l1_ref = []
-
- for i in range(0, GSM_BURST_LEN):
- ubit = random.randint(0, 1)
- burst_l12trx_ref.append(ubit)
-
- sbit = random.randint(-127, 127)
- burst_trx2l1_ref.append(sbit)
-
log.info("Generating the reference messages")
# Create messages of both types
- msg_l12trx_ref = DATAMSG_L12TRX(burst = burst_l12trx_ref)
- msg_trx2l1_ref = DATAMSG_TRX2L1(burst = burst_trx2l1_ref)
+ msg_l12trx_ref = DATAMSG_L12TRX()
+ msg_trx2l1_ref = DATAMSG_TRX2L1()
# Validate header randomization
for i in range(0, 100):
msg_l12trx_ref.rand_hdr()
msg_trx2l1_ref.rand_hdr()
+ msg_l12trx_ref.rand_burst()
+ msg_trx2l1_ref.rand_burst()
+
assert(msg_l12trx_ref.validate())
assert(msg_trx2l1_ref.validate())
@@ -550,9 +562,9 @@
log.info("Comparing decoded messages with the reference")
# Compare bursts
- assert(msg_l12trx_dec.burst == burst_l12trx_ref)
- assert(msg_trx2l1_dec.burst == burst_trx2l1_ref)
- assert(msg_trx2l1_legacy_dec.burst == burst_trx2l1_ref)
+ assert(msg_l12trx_dec.burst == msg_l12trx_ref.burst)
+ assert(msg_trx2l1_dec.burst == msg_trx2l1_ref.burst)
+ assert(msg_trx2l1_legacy_dec.burst == msg_trx2l1_ref.burst)
log.info("Compare bursts: OK")
@@ -602,7 +614,7 @@
assert(msg_trx2l1_dec.fn == msg_l12trx_ref.fn)
assert(msg_trx2l1_dec.tn == msg_l12trx_ref.tn)
- assert(msg_l12trx_dec.burst == DATAMSG.sbit2ubit(burst_trx2l1_ref))
- assert(msg_trx2l1_dec.burst == DATAMSG.ubit2sbit(burst_l12trx_ref))
+ assert(msg_l12trx_dec.burst == DATAMSG.sbit2ubit(msg_trx2l1_ref.burst))
+ assert(msg_trx2l1_dec.burst == DATAMSG.ubit2sbit(msg_l12trx_ref.burst))
log.info("Check L12TRX <-> TRX2L1 type transformations: OK")
--
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Gerrit-Project: osmocom-bb
Gerrit-Branch: master
Gerrit-Change-Id: Idf1393d3d1f04e6c60b356b797a18e6f77b23554
Gerrit-Change-Number: 14648
Gerrit-PatchSet: 1
Gerrit-Owner: fixeria <[email protected]>
Gerrit-MessageType: newchange
