Address review comments: use unique temp file and improve assertions

- Replace hardcoded /tmp/test_log.dat with unique temporary file using boost::filesystem
- Change EXPECT_TRUE comparisons to EXPECT_GT and EXPECT_EQ for better test clarity
- Add boost::filesystem include and using directive

Co-authored-by: highperformancecoder <3075825+highperformancecoder@users.noreply.github.com>

Author: Copilot

test/testMinsky.cc

@@ -26,7 +26,9 @@
 #include <fstream>
 #include <cstdio>
 #include <algorithm>
+#include <boost/filesystem.hpp>
 using namespace minsky;
+using namespace boost::filesystem;
 
 namespace
 {
@@ -1291,7 +1293,7 @@ TEST(TensorOps, evalOpEvaluate)
       logVarList.insert(":testVar1");
       logVarList.insert(":testVar2");
 
-      string logFile = "/tmp/test_log.dat";
+      string logFile = (temp_directory_path() / unique_path("test_log_%%%%-%%%%.dat")).string();
       openLogFile(logFile);
       EXPECT_TRUE(loggingEnabled());
 
@@ -1443,8 +1445,8 @@ TEST(TensorOps, evalOpEvaluate)
       renameDimension("testDim", "newTestDim");
 
       // Verify dimension was renamed in dimensions map
-      EXPECT_TRUE(dimensions.count("newTestDim") > 0);
-      EXPECT_TRUE(dimensions.count("testDim") == 0);
+      EXPECT_GT(dimensions.count("newTestDim"), 0);
+      EXPECT_EQ(dimensions.count("testDim"), 0);
 
       // Verify variableValue hypercube was also updated
       auto updatedHc = variableValues[":dimTestVar"]->tensorInit.hypercube();