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[4321] Added unit test for Solicit after lease acquisition.

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The new test uses swapped addresses as hints after acquiring
these addresses in a 4-way exchange. The server ignores hints.
This commit is contained in:
Marcin Siodelski
2016-06-17 16:34:35 +02:00
parent 9df2012346
commit cd397470f4
1 changed files with 52 additions and 1 deletions
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53
src/bin/dhcp6/tests/host_unittest.cc
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@@ -58,7 +58,7 @@ const char* CONFIGS[] = {
" \"ip-addresses\": [ \"2001:db8:1:1::babf\" ]"
" } ]"
" } ]"
"}",
"}",
// Configuration 1:
"{ "
@@ -1028,6 +1028,57 @@ TEST_F(HostTest, multipleIAsRenew) {
EXPECT_TRUE(client_.hasLeaseForPrefix(IOAddress("3000:1:3::"), 64));
}
// In this test, the client performs 4-way exchange and includes 3 IA_NAs
// and IA_PDs. The server has 3 address and 3 prefix reservations for the
// client and allocates them all. Once the 4-way exchange is complete,
// the client sends Solicit in which it specifies hints for all IAs. The
// hints are for the reserved addresses but some of them are included in
// different IAs than they are assigned to. The server should ignore hints
// and respond with currently assigned leases.
TEST_F(HostTest, multipleIAsSolicitAfterAcquisition) {
// 4-way exchange
testMultipleIAs(do_solicit_request_,
Reservation("2001:db8:1:1::1"),
Reservation("2001:db8:1:1::2"),
Reservation("2001:db8:1:1::3"),
Reservation("3000:1:1::/64"),
Reservation("3000:1:2::/64"),
Reservation("3000:1:3::/64"));
client_.clearRequestedIAs();
// Specify hints.
// "2001:db8:1:1::1" is allocated for IAID = 1 but we specify it as
// a hint for IAID = 3 and so on.
requestIA(client_, Hint(IAID(3), "2001:db8:1:1::1"));
requestIA(client_, Hint(IAID(2), "2001:db8:1:1::2"));
requestIA(client_, Hint(IAID(1), "2001:db8:1:1::3"));
requestIA(client_, Hint(IAID(6), "3000:1:1::/64"));
requestIA(client_, Hint(IAID(5), "3000:1:2::/64"));
requestIA(client_, Hint(IAID(4), "3000:1:3::/64"));
// Send Solicit with hints as specified above.
ASSERT_NO_THROW(do_solicit_());
// Make sure that the client still has the same leases and the leases
// should be assigned to the same IAs.
ASSERT_EQ(6, client_.getLeaseNum());
EXPECT_TRUE(client_.hasLeaseForAddress(IOAddress("2001:db8:1:1::1"),
IAID(1)));
EXPECT_TRUE(client_.hasLeaseForAddress(IOAddress("2001:db8:1:1::2"),
IAID(2)));
EXPECT_TRUE(client_.hasLeaseForAddress(IOAddress("2001:db8:1:1::3"),
IAID(3)));
EXPECT_TRUE(client_.hasLeaseForPrefix(IOAddress("3000:1:1::"), 64,
IAID(4)));
EXPECT_TRUE(client_.hasLeaseForPrefix(IOAddress("3000:1:2::"), 64,
IAID(5)));
EXPECT_TRUE(client_.hasLeaseForPrefix(IOAddress("3000:1:3::"), 64,
IAID(6)));
}
// In this test, the client performs 4-way exchange and includes 3 IA_NAs and
// 3 IA_PDs and includes no hints. The server has reservations for 2 addresses
// and 2 prefixes for this client. The server allocates reserved leases and