Added utilite tests

utilite/test/test_uprocessinfo.cpp

@@ -0,0 +1,30 @@
+#include "gtest/gtest.h"
+#include "rtabmap/utilite/UProcessInfo.h"
+
+TEST(UProcessInfoTest, Constructor)
+{
+    UProcessInfo info;
+    // Should be constructible
+    SUCCEED();
+}
+
+TEST(UProcessInfoTest, GetMemoryUsage)
+{
+    long int memory = UProcessInfo::getMemoryUsage();
+    // Memory usage should be positive
+    EXPECT_GT(memory, 0);
+    // Should be reasonable (less than 1TB)
+    EXPECT_LT(memory, 1024LL * 1024 * 1024 * 1024);
+}
+
+TEST(UProcessInfoTest, GetMemoryUsageMultipleCalls)
+{
+    long int memory1 = UProcessInfo::getMemoryUsage();
+    long int memory2 = UProcessInfo::getMemoryUsage();
+    // Both calls should return valid values
+    EXPECT_GT(memory1, 0);
+    EXPECT_GT(memory2, 0);
+    // Values should be similar (might vary slightly)
+    EXPECT_NEAR(memory1, memory2, memory1 * 0.1); // Allow 10% variation
+}
+