diff --git a/test/test_gzip-utils.cpp b/test/test_gzip-utils.cpp
new file mode 100644
index 0000000..58f51f1
--- /dev/null
+++ b/test/test_gzip-utils.cpp
@@ -0,0 +1,102 @@
+#include "fru_device/gzip_utils.hpp"
+
+#include <algorithm>
+#include <array>
+#include <iterator>
+#include <ranges>
+
+#include "gmock/gmock.h"
+#include "gtest/gtest.h"
+
+TEST(GzipUtils, EmptyCompressed)
+{
+    std::vector<uint8_t> compressed = {};
+    std::optional<std::string> uncompressed = gzipInflate(compressed);
+    EXPECT_EQ(uncompressed, std::nullopt);
+}
+
+TEST(GzipUtils, GoodCompressed)
+{
+    // Empty file created with
+    // touch foo && gzip -c foo | xxd -i
+    std::array<uint8_t, 24> emptyCompressed{
+        0x1f, 0x8b, 0x08, 0x08, 0x16, 0x37, 0xdc, 0x68, 0x00, 0x03, 0x66, 0x6f,
+        0x6f, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+    std::optional<std::string> uncompressed = gzipInflate(emptyCompressed);
+    ASSERT_NE(uncompressed, std::nullopt);
+    if (uncompressed)
+    {
+        EXPECT_EQ(uncompressed->size(), 0U);
+    }
+}
+
+TEST(GzipUtils, 100kcompressedZeros)
+{
+    // File created with
+    // dd if=/dev/zero of=10kfile bs=10k count=1 && gzip -c 10kfile | xxd -i
+    std::array<uint8_t, 53> emptyCompressed{
+        0x1f, 0x8b, 0x08, 0x08, 0xcb, 0x37, 0xdc, 0x68, 0x00, 0x03, 0x31,
+        0x30, 0x6b, 0x66, 0x69, 0x6c, 0x65, 0x00, 0xed, 0xc1, 0x01, 0x0d,
+        0x00, 0x00, 0x00, 0xc2, 0xa0, 0xf7, 0x4f, 0x6d, 0x0e, 0x37, 0xa0,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x37,
+        0x03, 0x9a, 0xde, 0x1d, 0x27, 0x00, 0x28, 0x00, 0x00};
+    std::optional<std::string> uncompressed = gzipInflate(emptyCompressed);
+    ASSERT_NE(uncompressed, std::nullopt);
+    if (uncompressed)
+    {
+        EXPECT_EQ(uncompressed->size(), 10240U);
+        EXPECT_TRUE(std::ranges::all_of(*uncompressed, [](uint8_t c) {
+            return c == 0U;
+        }));
+    }
+}
+
+using ::testing::ElementsAre;
+using ::testing::IsEmpty;
+
+TEST(GzipUtils, getNodeFromXml)
+{
+    constexpr std::string_view xml = R"(<?xml version="1.0" encoding="UTF-8"?>
+        <bookstore>
+          <book category="cooking">
+            <title lang="en">Everyday Italian</title>
+            <author>Giada De Laurentiis</author>
+            <year>2005</year>
+            <price>30.00</price>
+          </book>
+        </bookstore>
+    )";
+
+    EXPECT_THAT(getNodeFromXml(xml, "/bookstore/book/title"),
+                ElementsAre("Everyday Italian"));
+    EXPECT_THAT(getNodeFromXml(xml, "/bookstore/book/author"),
+                ElementsAre("Giada De Laurentiis"));
+    EXPECT_THAT(getNodeFromXml(xml, "/bookstore/book/year"),
+                ElementsAre("2005"));
+    EXPECT_THAT(getNodeFromXml(xml, "/bookstore/book/price"),
+                ElementsAre("30.00"));
+    EXPECT_THAT(getNodeFromXml(xml, "//book/title"),
+                ElementsAre("Everyday Italian"));
+    EXPECT_THAT(getNodeFromXml(xml, "//book/author"),
+                ElementsAre("Giada De Laurentiis"));
+    EXPECT_THAT(getNodeFromXml(xml, "//book/year"), ElementsAre("2005"));
+    EXPECT_THAT(getNodeFromXml(xml, "//book/price"), ElementsAre("30.00"));
+    EXPECT_THAT(getNodeFromXml(xml, "///title"),
+                ElementsAre("Everyday Italian"));
+    EXPECT_THAT(getNodeFromXml(xml, "///author"),
+                ElementsAre("Giada De Laurentiis"));
+    EXPECT_THAT(getNodeFromXml(xml, "///year"), ElementsAre("2005"));
+    EXPECT_THAT(getNodeFromXml(xml, "///price"), ElementsAre("30.00"));
+
+    EXPECT_THAT(getNodeFromXml(xml, "/bookstore/book/noexist"), IsEmpty());
+    EXPECT_THAT(getNodeFromXml(xml, "/bookstore/noexist/title"), IsEmpty());
+    EXPECT_THAT(getNodeFromXml(xml, "/noexist/book/title"), IsEmpty());
+    EXPECT_THAT(getNodeFromXml(xml, "//book/noexist"), IsEmpty());
+    EXPECT_THAT(getNodeFromXml(xml, "//noexist/title"), IsEmpty());
+    EXPECT_THAT(getNodeFromXml(xml, "///noexist"), IsEmpty());
+
+    // invalid xpath
+    EXPECT_THAT(getNodeFromXml(xml, "foo"), IsEmpty());
+    EXPECT_THAT(getNodeFromXml(xml, "foo/bar"), IsEmpty());
+    EXPECT_THAT(getNodeFromXml(xml, "?"), IsEmpty());
+}