diff --git a/fw-update/test/package_parser_test.cpp b/fw-update/test/package_parser_test.cpp
new file mode 100644
index 0000000..b20777e
--- /dev/null
+++ b/fw-update/test/package_parser_test.cpp
@@ -0,0 +1,180 @@
+#include "fw-update/package_parser.hpp"
+
+#include <typeinfo>
+
+#include <gmock/gmock.h>
+#include <gtest/gtest.h>
+
+using namespace pldm::fw_update;
+
+TEST(PackageParser, ValidPkgSingleDescriptorSingleComponent)
+{
+    std::vector<uint8_t> fwPkgHdr{
+        0xF0, 0x18, 0x87, 0x8C, 0xCB, 0x7D, 0x49, 0x43, 0x98, 0x00, 0xA0, 0x2F,
+        0x05, 0x9A, 0xCA, 0x02, 0x01, 0x8B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x19, 0x0C, 0xE5, 0x07, 0x00, 0x08, 0x00, 0x01, 0x0E,
+        0x56, 0x65, 0x72, 0x73, 0x69, 0x6F, 0x6E, 0x53, 0x74, 0x72, 0x69, 0x6E,
+        0x67, 0x31, 0x01, 0x2E, 0x00, 0x01, 0x01, 0x00, 0x00, 0x00, 0x01, 0x0E,
+        0x00, 0x00, 0x01, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6F, 0x6E, 0x53, 0x74,
+        0x72, 0x69, 0x6E, 0x67, 0x32, 0x02, 0x00, 0x10, 0x00, 0x16, 0x20, 0x23,
+        0xC9, 0x3E, 0xC5, 0x41, 0x15, 0x95, 0xF4, 0x48, 0x70, 0x1D, 0x49, 0xD6,
+        0x75, 0x01, 0x00, 0x0A, 0x00, 0x64, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x00,
+        0x00, 0x00, 0x00, 0x8B, 0x00, 0x00, 0x00, 0x1B, 0x00, 0x00, 0x00, 0x01,
+        0x0E, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6F, 0x6E, 0x53, 0x74, 0x72, 0x69,
+        0x6E, 0x67, 0x33, 0x4F, 0x96, 0xAE, 0x56};
+
+    constexpr uintmax_t pkgSize = 166;
+    constexpr std::string_view pkgVersion{"VersionString1"};
+    auto parser = parsePkgHeader(fwPkgHdr);
+    EXPECT_EQ(typeid(*parser).name(), typeid(PackageParserV1).name());
+    EXPECT_EQ(parser->pkgHeaderSize, fwPkgHdr.size());
+    EXPECT_EQ(parser->pkgVersion, pkgVersion);
+
+    parser->parse(fwPkgHdr, pkgSize);
+    auto outfwDeviceIDRecords = parser->getFwDeviceIDRecords();
+    FirmwareDeviceIDRecords fwDeviceIDRecords{
+        {1,
+         {0},
+         "VersionString2",
+         {{PLDM_FWUP_UUID,
+           std::vector<uint8_t>{0x16, 0x20, 0x23, 0xC9, 0x3E, 0xC5, 0x41, 0x15,
+                                0x95, 0xF4, 0x48, 0x70, 0x1D, 0x49, 0xD6,
+                                0x75}}},
+         {}},
+    };
+    EXPECT_EQ(outfwDeviceIDRecords, fwDeviceIDRecords);
+
+    auto outCompImageInfos = parser->getComponentImageInfos();
+    ComponentImageInfos compImageInfos{
+        {10, 100, 0xFFFFFFFF, 0, 0, 139, 27, "VersionString3"}};
+    EXPECT_EQ(outCompImageInfos, compImageInfos);
+}
+
+TEST(PackageParser, ValidPkgMultipleDescriptorsMultipleComponents)
+{
+    std::vector<uint8_t> fwPkgHdr{
+        0xF0, 0x18, 0x87, 0x8C, 0xCB, 0x7D, 0x49, 0x43, 0x98, 0x00, 0xA0, 0x2F,
+        0x05, 0x9A, 0xCA, 0x02, 0x01, 0x46, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x19, 0x0C, 0xE5, 0x07, 0x00, 0x08, 0x00, 0x01, 0x0E,
+        0x56, 0x65, 0x72, 0x73, 0x69, 0x6F, 0x6E, 0x53, 0x74, 0x72, 0x69, 0x6E,
+        0x67, 0x31, 0x03, 0x45, 0x00, 0x03, 0x01, 0x00, 0x00, 0x00, 0x01, 0x0E,
+        0x00, 0x00, 0x03, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6F, 0x6E, 0x53, 0x74,
+        0x72, 0x69, 0x6E, 0x67, 0x32, 0x02, 0x00, 0x10, 0x00, 0x12, 0x44, 0xD2,
+        0x64, 0x8D, 0x7D, 0x47, 0x18, 0xA0, 0x30, 0xFC, 0x8A, 0x56, 0x58, 0x7D,
+        0x5B, 0x01, 0x00, 0x04, 0x00, 0x47, 0x16, 0x00, 0x00, 0xFF, 0xFF, 0x0B,
+        0x00, 0x01, 0x07, 0x4F, 0x70, 0x65, 0x6E, 0x42, 0x4D, 0x43, 0x12, 0x34,
+        0x2E, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x0E, 0x00, 0x00, 0x07,
+        0x56, 0x65, 0x72, 0x73, 0x69, 0x6F, 0x6E, 0x53, 0x74, 0x72, 0x69, 0x6E,
+        0x67, 0x33, 0x02, 0x00, 0x10, 0x00, 0x12, 0x44, 0xD2, 0x64, 0x8D, 0x7D,
+        0x47, 0x18, 0xA0, 0x30, 0xFC, 0x8A, 0x56, 0x58, 0x7D, 0x5C, 0x2E, 0x00,
+        0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x0E, 0x00, 0x00, 0x01, 0x56, 0x65,
+        0x72, 0x73, 0x69, 0x6F, 0x6E, 0x53, 0x74, 0x72, 0x69, 0x6E, 0x67, 0x34,
+        0x02, 0x00, 0x10, 0x00, 0x12, 0x44, 0xD2, 0x64, 0x8D, 0x7D, 0x47, 0x18,
+        0xA0, 0x30, 0xFC, 0x8A, 0x56, 0x58, 0x7D, 0x5D, 0x03, 0x00, 0x0A, 0x00,
+        0x64, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x46, 0x01,
+        0x00, 0x00, 0x1B, 0x00, 0x00, 0x00, 0x01, 0x0E, 0x56, 0x65, 0x72, 0x73,
+        0x69, 0x6F, 0x6E, 0x53, 0x74, 0x72, 0x69, 0x6E, 0x67, 0x35, 0x0A, 0x00,
+        0xC8, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x01, 0x00, 0x61, 0x01,
+        0x00, 0x00, 0x1B, 0x00, 0x00, 0x00, 0x01, 0x0E, 0x56, 0x65, 0x72, 0x73,
+        0x69, 0x6F, 0x6E, 0x53, 0x74, 0x72, 0x69, 0x6E, 0x67, 0x36, 0x10, 0x00,
+        0x2C, 0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0x01, 0x00, 0x0C, 0x00, 0x7C, 0x01,
+        0x00, 0x00, 0x1B, 0x00, 0x00, 0x00, 0x01, 0x0E, 0x56, 0x65, 0x72, 0x73,
+        0x69, 0x6F, 0x6E, 0x53, 0x74, 0x72, 0x69, 0x6E, 0x67, 0x37, 0xF1, 0x90,
+        0x9C, 0x71};
+
+    constexpr uintmax_t pkgSize = 407;
+    constexpr std::string_view pkgVersion{"VersionString1"};
+    auto parser = parsePkgHeader(fwPkgHdr);
+    EXPECT_EQ(typeid(*parser).name(), typeid(PackageParserV1).name());
+    EXPECT_EQ(parser->pkgHeaderSize, fwPkgHdr.size());
+    EXPECT_EQ(parser->pkgVersion, pkgVersion);
+
+    parser->parse(fwPkgHdr, pkgSize);
+    auto outfwDeviceIDRecords = parser->getFwDeviceIDRecords();
+    FirmwareDeviceIDRecords fwDeviceIDRecords{
+        {1,
+         {0, 1},
+         "VersionString2",
+         {{PLDM_FWUP_UUID,
+           std::vector<uint8_t>{0x12, 0x44, 0xD2, 0x64, 0x8D, 0x7D, 0x47, 0x18,
+                                0xA0, 0x30, 0xFC, 0x8A, 0x56, 0x58, 0x7D,
+                                0x5B}},
+          {PLDM_FWUP_IANA_ENTERPRISE_ID,
+           std::vector<uint8_t>{0x47, 0x16, 0x00, 0x00}},
+          {PLDM_FWUP_VENDOR_DEFINED,
+           std::make_tuple("OpenBMC", std::vector<uint8_t>{0x12, 0x34})}},
+         {}},
+        {0,
+         {0, 1, 2},
+         "VersionString3",
+         {{PLDM_FWUP_UUID,
+           std::vector<uint8_t>{0x12, 0x44, 0xD2, 0x64, 0x8D, 0x7D, 0x47, 0x18,
+                                0xA0, 0x30, 0xFC, 0x8A, 0x56, 0x58, 0x7D,
+                                0x5C}}},
+         {}},
+        {0,
+         {0},
+         "VersionString4",
+         {{PLDM_FWUP_UUID,
+           std::vector<uint8_t>{0x12, 0x44, 0xD2, 0x64, 0x8D, 0x7D, 0x47, 0x18,
+                                0xA0, 0x30, 0xFC, 0x8A, 0x56, 0x58, 0x7D,
+                                0x5D}}},
+         {}},
+    };
+    EXPECT_EQ(outfwDeviceIDRecords, fwDeviceIDRecords);
+
+    auto outCompImageInfos = parser->getComponentImageInfos();
+    ComponentImageInfos compImageInfos{
+        {10, 100, 0xFFFFFFFF, 0, 0, 326, 27, "VersionString5"},
+        {10, 200, 0xFFFFFFFF, 0, 1, 353, 27, "VersionString6"},
+        {16, 300, 0xFFFFFFFF, 1, 12, 380, 27, "VersionString7"}};
+    EXPECT_EQ(outCompImageInfos, compImageInfos);
+}
+
+TEST(PackageParser, InvalidPkgHeaderInfoIncomplete)
+{
+    std::vector<uint8_t> fwPkgHdr{0xF0, 0x18, 0x87, 0x8C, 0xCB, 0x7D,
+                                  0x49, 0x43, 0x98, 0x00, 0xA0, 0x2F,
+                                  0x05, 0x9A, 0xCA, 0x02};
+
+    auto parser = parsePkgHeader(fwPkgHdr);
+    EXPECT_EQ(parser, nullptr);
+}
+
+TEST(PackageParser, InvalidPkgNotSupportedHeaderFormat)
+{
+    std::vector<uint8_t> fwPkgHdr{
+        0x12, 0x44, 0xD2, 0x64, 0x8D, 0x7D, 0x47, 0x18, 0xA0, 0x30,
+        0xFC, 0x8A, 0x56, 0x58, 0x7D, 0x5B, 0x02, 0x8B, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x19, 0x0C, 0xE5,
+        0x07, 0x00, 0x08, 0x00, 0x01, 0x0E, 0x56, 0x65, 0x72, 0x73,
+        0x69, 0x6F, 0x6E, 0x53, 0x74, 0x72, 0x69, 0x6E, 0x67, 0x31};
+
+    auto parser = parsePkgHeader(fwPkgHdr);
+    EXPECT_EQ(parser, nullptr);
+}
+
+TEST(PackageParser, InvalidPkgBadChecksum)
+{
+    std::vector<uint8_t> fwPkgHdr{
+        0xF0, 0x18, 0x87, 0x8C, 0xCB, 0x7D, 0x49, 0x43, 0x98, 0x00, 0xA0, 0x2F,
+        0x05, 0x9A, 0xCA, 0x02, 0x01, 0x8B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x19, 0x0C, 0xE5, 0x07, 0x00, 0x08, 0x00, 0x01, 0x0E,
+        0x56, 0x65, 0x72, 0x73, 0x69, 0x6F, 0x6E, 0x53, 0x74, 0x72, 0x69, 0x6E,
+        0x67, 0x31, 0x01, 0x2E, 0x00, 0x01, 0x01, 0x00, 0x00, 0x00, 0x01, 0x0E,
+        0x00, 0x00, 0x01, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6F, 0x6E, 0x53, 0x74,
+        0x72, 0x69, 0x6E, 0x67, 0x32, 0x02, 0x00, 0x10, 0x00, 0x16, 0x20, 0x23,
+        0xC9, 0x3E, 0xC5, 0x41, 0x15, 0x95, 0xF4, 0x48, 0x70, 0x1D, 0x49, 0xD6,
+        0x75, 0x01, 0x00, 0x0A, 0x00, 0x64, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x00,
+        0x00, 0x00, 0x00, 0x8B, 0x00, 0x00, 0x00, 0x1B, 0x00, 0x00, 0x00, 0x01,
+        0x0E, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6F, 0x6E, 0x53, 0x74, 0x72, 0x69,
+        0x6E, 0x67, 0x33, 0x4F, 0x96, 0xAE, 0x57};
+
+    constexpr uintmax_t pkgSize = 166;
+    constexpr std::string_view pkgVersion{"VersionString1"};
+    auto parser = parsePkgHeader(fwPkgHdr);
+    EXPECT_EQ(typeid(*parser).name(), typeid(PackageParserV1).name());
+    EXPECT_EQ(parser->pkgHeaderSize, fwPkgHdr.size());
+    EXPECT_EQ(parser->pkgVersion, pkgVersion);
+    EXPECT_THROW(parser->parse(fwPkgHdr, pkgSize), std::exception);
+}
\ No newline at end of file