[2238] Missing tests for {first,last}AddrInPrefix() added.

src/lib/util/tests/addr_utilities_unittest.cc

@@ -0,0 +1,85 @@
+
+// Copyright (C) 2010  Internet Systems Consortium, Inc. ("ISC")
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+// OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+#include <config.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+#include <gtest/gtest.h>
+#include <vector>
+
+#include <util/addr_utilities.h>
+
+using namespace std;
+using namespace isc::util;
+using namespace isc::asiolink;
+
+TEST(Pool6Test, lastAddrInPrefix) {
+    IOAddress addr1("2001:db8:1:1234:5678:abcd:1234:beef");
+
+    // Prefixes rounded to nibbles are easy...
+    EXPECT_EQ("2001:db8:1:1234:5678:abcd:1234:ffff",
+              lastAddrInPrefix(addr1, 112).toText());
+    EXPECT_EQ("2001:db8:1:1234:5678:abcd:123f:ffff",
+              lastAddrInPrefix(addr1, 108).toText());
+    EXPECT_EQ("2001:db8:1:1234:5678:abcd:12ff:ffff",
+              lastAddrInPrefix(addr1, 104).toText());
+    EXPECT_EQ("2001:db8:1:1234:ffff:ffff:ffff:ffff",
+              lastAddrInPrefix(addr1, 64).toText());
+
+    IOAddress addr2("2001::");
+
+    // These are tricker, though, as they are done in 1 bit increments
+
+    // the last address in 2001::/127 pool should be 2001::1
+    EXPECT_EQ("2001::1", lastAddrInPrefix(addr2, 127).toText());
+
+    EXPECT_EQ("2001::3", lastAddrInPrefix(addr2, 126).toText());
+    EXPECT_EQ("2001::7", lastAddrInPrefix(addr2, 125).toText());
+    EXPECT_EQ("2001::f", lastAddrInPrefix(addr2, 124).toText());
+    EXPECT_EQ("2001::1f", lastAddrInPrefix(addr2, 123).toText());
+    EXPECT_EQ("2001::3f", lastAddrInPrefix(addr2, 122).toText());
+    EXPECT_EQ("2001::7f", lastAddrInPrefix(addr2, 121).toText());
+    EXPECT_EQ("2001::ff", lastAddrInPrefix(addr2, 120).toText());
+}
+
+TEST(Pool6Test, firstAddrInPrefix) {
+    IOAddress addr1("2001:db8:1:1234:5678:abcd:1234:beef");
+
+    // Prefixes rounded to nibbles are easy...
+    EXPECT_EQ("2001:db8:1:1234:5678:abcd:1234:0",
+              firstAddrInPrefix(addr1, 112).toText());
+    EXPECT_EQ("2001:db8:1:1234:5678:abcd:1230:0",
+              firstAddrInPrefix(addr1, 108).toText());
+    EXPECT_EQ("2001:db8:1:1234:5678:abcd:1200:0",
+              firstAddrInPrefix(addr1, 104).toText());
+    EXPECT_EQ("2001:db8:1:1234::",
+              firstAddrInPrefix(addr1, 64).toText());
+
+    IOAddress addr2("2001::ffff");
+
+    // These are tricker, though, as they are done in 1 bit increments
+
+    // the first address in 2001::/127 pool should be 2001::1
+    EXPECT_EQ("2001::fffe", firstAddrInPrefix(addr2, 127).toText());
+
+    EXPECT_EQ("2001::fffc", firstAddrInPrefix(addr2, 126).toText());
+    EXPECT_EQ("2001::fff8", firstAddrInPrefix(addr2, 125).toText());
+    EXPECT_EQ("2001::fff0", firstAddrInPrefix(addr2, 124).toText());
+    EXPECT_EQ("2001::ffe0", firstAddrInPrefix(addr2, 123).toText());
+    EXPECT_EQ("2001::ffc0", firstAddrInPrefix(addr2, 122).toText());
+    EXPECT_EQ("2001::ff80", firstAddrInPrefix(addr2, 121).toText());
+    EXPECT_EQ("2001::ff00", firstAddrInPrefix(addr2, 120).toText());
+}