add check

src/test/java/gov/usgs/earthquake/nshmp/model/NshmTestUtils.java

@@ -195,8 +195,9 @@ class NshmTestUtils {
       Nshm nshm,
       NamedLocation location,
       Optional<Path> dataPath) throws InterruptedException, ExecutionException {
-    Map<String, XySequence> actual =
-        HazardServiceUtils.generateActual(location, nshm.imts());
+    Map<String, XySequence> actual = dataPath.isPresent()
+        ? readExpected(nshm, location, dataPath)
+        : HazardServiceUtils.generateActual(location, nshm.imts());
     Map<String, XySequence> expected = readExpected(nshm, location, Optional.empty());
 
     for (String key : actual.keySet()) {