3 files changed, 78 insertions, 0 deletions
diff --git a/test/openpower-pels/Makefile.include b/test/openpower-pels/Makefile.include
index f860db2..0e0257c 100644
--- a/test/openpower-pels/Makefile.include
+++ b/test/openpower-pels/Makefile.include
@@ -3,6 +3,7 @@ TESTS += $(check_PROGRAMS)
 check_PROGRAMS += \
 	additional_data_test \
 	bcd_time_test \
+	log_id_test \
 	private_header_test \
 	section_header_test \
 	stream_test \
@@ -58,3 +59,12 @@ user_header_test_LDADD = \
 	$(test_ldadd) \
 	$(pel_objects)
 user_header_test_LDFLAGS = $(test_ldflags)
+
+log_id_test_SOURCES = \
+	%reldir%/log_id_test.cpp %reldir%/paths.cpp
+log_id_test_CPPFLAGS = $(test_cppflags)
+log_id_test_CXXFLAGS = $(test_cxxflags)
+log_id_test_LDADD = \
+	$(test_ldadd) \
+	$(top_builddir)/extensions/openpower-pels/log_id.o
+log_id_test_LDFLAGS = $(test_ldflags)
diff --git a/test/openpower-pels/log_id_test.cpp b/test/openpower-pels/log_id_test.cpp
new file mode 100644
index 0000000..e5f2632
--- /dev/null
+++ b/test/openpower-pels/log_id_test.cpp
@@ -0,0 +1,42 @@
+#include "extensions/openpower-pels/log_id.hpp"
+#include "extensions/openpower-pels/paths.hpp"
+
+#include <arpa/inet.h>
+
+#include <filesystem>
+
+#include <gtest/gtest.h>
+
+using namespace openpower::pels;
+namespace fs = std::filesystem;
+
+TEST(LogIdTest, TimeBasedIDTest)
+{
+    uint32_t lastID = 0;
+    for (int i = 0; i < 10; i++)
+    {
+        auto id = detail::getTimeBasedLogID();
+
+        EXPECT_EQ(id & 0xFF000000, 0x50000000);
+        EXPECT_NE(id, lastID);
+        lastID = id;
+    }
+}
+
+TEST(LogIdTest, IDTest)
+{
+    EXPECT_EQ(generatePELID(), 0x50000001);
+    EXPECT_EQ(generatePELID(), 0x50000002);
+    EXPECT_EQ(generatePELID(), 0x50000003);
+    EXPECT_EQ(generatePELID(), 0x50000004);
+    EXPECT_EQ(generatePELID(), 0x50000005);
+    EXPECT_EQ(generatePELID(), 0x50000006);
+
+    auto backingFile = getPELIDFile();
+    fs::remove(backingFile);
+    EXPECT_EQ(generatePELID(), 0x50000001);
+    EXPECT_EQ(generatePELID(), 0x50000002);
+    EXPECT_EQ(generatePELID(), 0x50000003);
+
+    fs::remove_all(fs::path{backingFile}.parent_path());
+}
diff --git a/test/openpower-pels/paths.cpp b/test/openpower-pels/paths.cpp
new file mode 100644
index 0000000..464b92c
--- /dev/null
+++ b/test/openpower-pels/paths.cpp
@@ -0,0 +1,26 @@
+#include "extensions/openpower-pels/paths.hpp"
+
+#include <filesystem>
+
+namespace openpower
+{
+namespace pels
+{
+
+// Use paths that work in unit tests.
+
+std::filesystem::path getPELIDFile()
+{
+    static std::string idFile;
+
+    if (idFile.empty())
+    {
+        char templ[] = "/tmp/logidtestXXXXXX";
+        std::filesystem::path dir = mkdtemp(templ);
+        idFile = dir / "logid";
+    }
+    return idFile;
+}
+
+} // namespace pels
+} // namespace openpower