Fix lastLeq bug

Internal.h

@@ -7,6 +7,7 @@
 #include <cstdint>
 #include <cstdlib>
 #include <cstring>
+#include <inttypes.h>
 #include <map>
 #include <set>
 #include <span>
@@ -14,7 +15,7 @@
 #include <utility>
 #include <vector>
 
-#define DEBUG_VERBOSE 1
+#define DEBUG_VERBOSE 0
 
 // This header contains code that we want to reuse outside of ConflictSet.cpp or
 // want to exclude from coverage since it's only testing related.
@@ -451,6 +452,19 @@ template <class ConflictSetImpl> struct TestDriver {
 
   constexpr static auto kMaxKeyLen = 24;
 
+  bool ok = true;
+
+  static const char *resultToStr(ConflictSet::Result r) {
+    switch (r) {
+    case ConflictSet::Commit:
+      return "commit";
+    case ConflictSet::Conflict:
+      return "conflict";
+    case ConflictSet::TooOld:
+      return "too old";
+    }
+  }
+
   // Call until it returns true, for "done". Check internal invariants etc
   // between calls to next.
   bool next() {
@@ -537,10 +551,12 @@ template <class ConflictSetImpl> struct TestDriver {
       refImpl.check(reads, results2, numReads);
       for (int i = 0; i < numReads; ++i) {
         if (results1[i] != results2[i]) {
-          fprintf(stderr, "Expected %d, got %d for read of %s at version %d\n",
-                  results2[i], results1[i], printable(reads[i].begin).c_str(),
-                  int(reads[i].readVersion));
-          abort();
+          fprintf(stderr,
+                  "Expected %s, got %s for read of %s at version %" PRId64 "\n",
+                  resultToStr(results2[i]), resultToStr(results1[i]),
+                  printable(reads[i].begin).c_str(), reads[i].readVersion);
+          ok = false;
+          return true;
         }
       }
     }