diff --git a/metrics-ipmi-blobs/test/util_test.cpp b/metrics-ipmi-blobs/test/util_test.cpp
new file mode 100644
index 0000000..9b45502
--- /dev/null
+++ b/metrics-ipmi-blobs/test/util_test.cpp
@@ -0,0 +1,143 @@
+#include "util.hpp"
+
+#include <filesystem>
+#include <fstream>
+
+#include "gtest/gtest.h"
+
+TEST(IsNumericPath, invalidNumericPath)
+{
+    std::string badPath{"badNumericPath"};
+    int id = -1;
+    EXPECT_FALSE(metric_blob::isNumericPath(badPath, id));
+    EXPECT_EQ(id, -1);
+}
+
+TEST(IsNumericPath, validNumericPath)
+{
+    std::string goodPath{"proc/10000"};
+    int id = -1;
+    EXPECT_TRUE(metric_blob::isNumericPath(goodPath, id));
+    EXPECT_EQ(id, 10000);
+}
+
+TEST(ReadFileIntoString, goodFile)
+{
+    const std::string& fileName = "./test_file";
+    std::ofstream ofs(fileName, std::ios::trunc);
+    std::string_view content = "This is\ntest\tcontentt\n\n\n\n.\n\n##$#$";
+    ofs << content;
+    ofs.close();
+    std::string readContent = metric_blob::readFileIntoString(fileName);
+    std::filesystem::remove(fileName);
+    EXPECT_EQ(readContent, content);
+}
+
+TEST(ReadFileIntoString, inexistentFile)
+{
+    const std::string& fileName = "./inexistent_file";
+    std::string readContent = metric_blob::readFileIntoString(fileName);
+    EXPECT_EQ(readContent, "");
+}
+
+TEST(GetTcommUtimeStime, validInput)
+{
+    // ticks_per_sec is usually 100 on the BMC
+    const long ticksPerSec = 100;
+
+    const std::string_view content = "2596 (dbus-broker) R 2577 2577 2577 0 -1 "
+                                     "4194560 299 0 1 0 333037 246110 0 0 20 0 "
+                                     "1 0 1545 3411968 530 4294967295 65536 "
+                                     "246512 2930531712 0 0 0 81923 4";
+
+    metric_blob::TcommUtimeStime t =
+        metric_blob::parseTcommUtimeStimeString(content, ticksPerSec);
+    const float EPS = 0.01; // The difference was 0.000117188
+    EXPECT_LT(std::abs(t.utime - 3330.37), EPS);
+    EXPECT_LT(std::abs(t.stime - 2461.10), EPS);
+    EXPECT_EQ(t.tcomm, "(dbus-broker)");
+}
+
+TEST(GetTcommUtimeStime, invalidInput)
+{
+    // ticks_per_sec is usually 100 on the BMC
+    const long ticksPerSec = 100;
+
+    const std::string_view content =
+        "x invalid x x x x x x x x x x x x x x x x x x x x x x x x x x x";
+
+    metric_blob::TcommUtimeStime t =
+        metric_blob::parseTcommUtimeStimeString(content, ticksPerSec);
+
+    EXPECT_EQ(t.utime, 0);
+    EXPECT_EQ(t.stime, 0);
+    EXPECT_EQ(t.tcomm, "invalid");
+}
+
+TEST(ParseMeminfoValue, validInput)
+{
+    const std::string_view content = "MemTotal:        1027040 kB\n"
+                                     "MemFree:          868144 kB\n"
+                                     "MemAvailable:     919308 kB\n"
+                                     "Buffers:           13008 kB\n"
+                                     "Cached:            82840 kB\n"
+                                     "SwapCached:            0 kB\n"
+                                     "Active:            62076 kB\n";
+    int value;
+    EXPECT_TRUE(metric_blob::parseMeminfoValue(content, "MemTotal:", value));
+    EXPECT_EQ(value, 1027040);
+    EXPECT_TRUE(metric_blob::parseMeminfoValue(content, "MemFree:", value));
+    EXPECT_EQ(value, 868144);
+    EXPECT_TRUE(
+        metric_blob::parseMeminfoValue(content, "MemAvailable:", value));
+    EXPECT_EQ(value, 919308);
+    EXPECT_TRUE(metric_blob::parseMeminfoValue(content, "Buffers:", value));
+    EXPECT_EQ(value, 13008);
+    EXPECT_TRUE(metric_blob::parseMeminfoValue(content, "Cached:", value));
+    EXPECT_EQ(value, 82840);
+    EXPECT_TRUE(metric_blob::parseMeminfoValue(content, "SwapCached:", value));
+    EXPECT_EQ(value, 0);
+    EXPECT_TRUE(metric_blob::parseMeminfoValue(content, "Active:", value));
+    EXPECT_EQ(value, 62076);
+}
+
+TEST(ParseMeminfoValue, invalidInput)
+{
+    const std::string_view invalid = "MemTotal: 1";
+    int value = -999;
+    EXPECT_FALSE(metric_blob::parseMeminfoValue(invalid, "MemTotal:", value));
+    EXPECT_EQ(value, -999);
+    EXPECT_FALSE(metric_blob::parseMeminfoValue(invalid, "x", value));
+    EXPECT_EQ(value, -999);
+}
+
+TEST(ParseProcUptime, validInput)
+{
+    const std::string_view content = "266923.67 512184.95";
+    const double eps =
+        1e-4; // Empirical threshold for floating point number compare
+    double uptime, idleProcessTime;
+    EXPECT_EQ(metric_blob::parseProcUptime(content, uptime, idleProcessTime),
+              true);
+    EXPECT_LT(abs(uptime - 266923.67), eps);
+    EXPECT_LT(abs(idleProcessTime - 512184.95), eps);
+}
+
+TEST(TrimStringRight, nonEmptyResult)
+{
+    EXPECT_EQ(
+        metric_blob::trimStringRight("\n\nabc\n\t\r\x00\x01\x02\x03").size(),
+        5); // "\n\nabc" is left
+}
+
+TEST(TrimStringRight, trimToEmpty)
+{
+    EXPECT_TRUE(metric_blob::trimStringRight("    ").empty());
+    EXPECT_TRUE(metric_blob::trimStringRight("").empty());
+}
+
+int main(int argc, char** argv)
+{
+    ::testing::InitGoogleTest(&argc, argv);
+    return RUN_ALL_TESTS();
+}
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