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[nexus] fix intermittent failures in 1.4 DNS and PIC tests (#12925)

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This commit addresses intermittent failures in Nexus tests 1_4_DNS_TC_1,
1_4_DNS_TC_5, 1_4_PIC_TC_1, 1_4_PIC_TC_3, and 1_4_PIC_TC_4.

The issue was caused by the 'ed1' node occasionally upgrading its role
from an End Device to a Router. When 'ed1' became a router, it would
sometimes use its Routing Locator (RLOC) as the source address for DNS
queries, whereas the verification scripts expected its Mesh Local
Endpoint Identifier (MLEID), leading to packet verification failures.

To resolve this, 'ed1' is now explicitly joined as a Full End Device
(FED) using 'Node::kAsFed' instead of the default Full Thread Device
(FTD) mode. This prevents 'ed1' from becoming a router and ensures it
maintains its End Device role throughout the test, providing stable
addressing for verification.
This commit is contained in:
Jonathan Hui
2026-04-18 21:54:43 -05:00
committed by GitHub
parent e01eea5c7e
commit d92a77c1b9
5 changed files with 5 additions and 5 deletions
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tests/nexus/test_1_4_DNS_TC_1.cpp
+1 -1
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@@ -158,7 +158,7 @@ void Test_1_4_DNS_TC_1(const char *aJsonFileName)
r1.Join(br1);
nexus.AdvanceTime(kJoinNetworkTime);
ed1.Join(r1);
ed1.Join(r1, Node::kAsFed);
nexus.AdvanceTime(kJoinNetworkTime);
// Setup BR_1 as Border Router
tests/nexus/test_1_4_DNS_TC_5.cpp
+1 -1
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@@ -287,7 +287,7 @@ void Test_1_4_DNS_TC_5(const char *aJsonFileName)
br1.Form();
nexus.AdvanceTime(kFormNetworkTime);
ed1.Join(br1);
ed1.Join(br1, Node::kAsFed);
nexus.AdvanceTime(kJoinNetworkTime);
br1.Get<BorderRouter::InfraIf>().Init(1, true);
tests/nexus/test_1_4_PIC_TC_1.cpp
+1 -1
View File
@@ -349,7 +349,7 @@ void Test_1_4_PIC_TC_1(void)
r1.Join(br1);
nexus.AdvanceTime(kJoinNetworkTime);
ed1.Join(r1);
ed1.Join(r1, Node::kAsFed);
nexus.AdvanceTime(kJoinNetworkTime);
Log("Step 4: BR_1 obtains OMR prefix via DHCPv6-PD");
tests/nexus/test_1_4_PIC_TC_3.cpp
+1 -1
View File
@@ -308,7 +308,7 @@ void Test_1_4_PIC_TC_3(void)
r1.Join(br1);
nexus.AdvanceTime(kJoinNetworkTime);
ed1.Join(r1);
ed1.Join(r1, Node::kAsFed);
nexus.AdvanceTime(kJoinNetworkTime);
Log("Step 4: BR_1 obtains OMR prefix via DHCPv6-PD");
tests/nexus/test_1_4_PIC_TC_4.cpp
+1 -1
View File
@@ -253,7 +253,7 @@ void Test_1_4_PIC_TC_4(void)
r1.Join(br1);
nexus.AdvanceTime(kJoinNetworkTime);
ed1.Join(r1);
ed1.Join(r1, Node::kAsFed);
nexus.AdvanceTime(kJoinNetworkTime);
Log("Step 4: BR_1 configures IPv4 address and NAT64 prefix");