Add unit tests for ipv4VerifyIpAndGetBitcount

Per the title, add unit tests for this function.

Tested: Unit tests pass

Signed-off-by: Ed Tanous <edtanous@google.com>
Change-Id: Ifdd9c314d2fa62ae3fa3b8f8150fcdd224a7eb03

1 files changed, 89 insertions, 1 deletions

diff --git a/test/redfish-core/include/utils/ip_utils_test.cpp b/test/redfish-core/include/utils/ip_utils_test.cpp
index f358c51477..e8b7ac9dd5 100644
--- a/test/redfish-core/include/utils/ip_utils_test.cpp
+++ b/test/redfish-core/include/utils/ip_utils_test.cpp
@@ -34,5 +34,93 @@ TEST(IpToString, ReturnsCorrectIpStringForIpv4MappedIpv6Addresses)
 {
     EXPECT_EQ(toString(make_address("::ffff:127.0.0.1")), "127.0.0.1");
 }
+
+TEST(ipv4VerifyIpAndGetBitcount, PositiveTests)
+{
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("192.168.1.1", nullptr));
+
+    uint8_t bits = 0;
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("128.0.0.0", &bits));
+    EXPECT_EQ(bits, 1);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("192.0.0.0", &bits));
+    EXPECT_EQ(bits, 2);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("224.0.0.0", &bits));
+    EXPECT_EQ(bits, 3);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("240.0.0.0", &bits));
+    EXPECT_EQ(bits, 4);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("248.0.0.0", &bits));
+    EXPECT_EQ(bits, 5);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("252.0.0.0", &bits));
+    EXPECT_EQ(bits, 6);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("254.0.0.0", &bits));
+    EXPECT_EQ(bits, 7);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("255.0.0.0", &bits));
+    EXPECT_EQ(bits, 8);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("255.128.0.0", &bits));
+    EXPECT_EQ(bits, 9);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("255.192.0.0", &bits));
+    EXPECT_EQ(bits, 10);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("255.224.0.0", &bits));
+    EXPECT_EQ(bits, 11);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("255.240.0.0", &bits));
+    EXPECT_EQ(bits, 12);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("255.248.0.0", &bits));
+    EXPECT_EQ(bits, 13);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("255.252.0.0", &bits));
+    EXPECT_EQ(bits, 14);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("255.254.0.0", &bits));
+    EXPECT_EQ(bits, 15);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("255.255.0.0", &bits));
+    EXPECT_EQ(bits, 16);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("255.255.128.0", &bits));
+    EXPECT_EQ(bits, 17);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("255.255.192.0", &bits));
+    EXPECT_EQ(bits, 18);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("255.255.224.0", &bits));
+    EXPECT_EQ(bits, 19);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("255.255.240.0", &bits));
+    EXPECT_EQ(bits, 20);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("255.255.248.0", &bits));
+    EXPECT_EQ(bits, 21);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("255.255.252.0", &bits));
+    EXPECT_EQ(bits, 22);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("255.255.254.0", &bits));
+    EXPECT_EQ(bits, 23);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("255.255.255.0", &bits));
+    EXPECT_EQ(bits, 24);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("255.255.255.128", &bits));
+    EXPECT_EQ(bits, 25);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("255.255.255.192", &bits));
+    EXPECT_EQ(bits, 26);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("255.255.255.224", &bits));
+    EXPECT_EQ(bits, 27);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("255.255.255.240", &bits));
+    EXPECT_EQ(bits, 28);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("255.255.255.248", &bits));
+    EXPECT_EQ(bits, 29);
+    EXPECT_TRUE(ipv4VerifyIpAndGetBitcount("255.255.255.252", &bits));
+    EXPECT_EQ(bits, 30);
+}
+
+TEST(ipv4VerifyIpAndGetBitcount, NegativeTests)
+{
+    uint8_t bits = 0;
+    // > 256 in any field
+    EXPECT_FALSE(ipv4VerifyIpAndGetBitcount("256.0.0.0", &bits));
+    EXPECT_FALSE(ipv4VerifyIpAndGetBitcount("1.256.0.0", &bits));
+    EXPECT_FALSE(ipv4VerifyIpAndGetBitcount("1.1.256.0", &bits));
+    EXPECT_FALSE(ipv4VerifyIpAndGetBitcount("1.1.1.256", &bits));
+
+    // Non contiguous mask
+    EXPECT_FALSE(ipv4VerifyIpAndGetBitcount("255.0.255.0", &bits));
+
+    // Too many fields
+    EXPECT_FALSE(ipv4VerifyIpAndGetBitcount("1.1.1.1.1", &bits));
+    // Not enough fields
+    EXPECT_FALSE(ipv4VerifyIpAndGetBitcount("1.1.1", &bits));
+
+    // Empty string
+    EXPECT_FALSE(ipv4VerifyIpAndGetBitcount("", &bits));
+}
 } // namespace
-} // namespace redfish::ip_util
\ No newline at end of file
+} // namespace redfish::ip_util