Added tests for invalid bisection parameters

src/BisectionCmd.h

@@ -65,6 +65,26 @@ class BisectionCmd : public Cmd
     nLevels[1]=atoi(argv[2]);
     nLevels[2]=atoi(argv[3]);
 
+    if ( epsilon < 0.0 )
+    {
+      if ( ui->onpe0() )
+      {
+        cout << " BisectionCmd: threshold must be non-negative" << endl;
+      }
+      return 1;
+    }
+
+    if ( nLevels[0] < 0 || nLevels[0] > 5 ||
+         nLevels[1] < 0 || nLevels[1] > 5 ||
+         nLevels[2] < 0 || nLevels[2] > 5 )
+    {
+      if ( ui->onpe0() )
+      {
+        cout << " BisectionCmd: levels must be in [0,5]" << endl;
+      }
+      return 1;
+    }
+
     tm.reset();
     for ( int ispin = 0; ispin < wf.nspin(); ispin++ )
     {

src/BlHF.h

@@ -46,10 +46,10 @@ class BlHF : public Var
     int v0 = atoi(argv[1]);
     int v1 = atoi(argv[2]);
     int v2 = atoi(argv[3]);
-    if ( v0 < 0 || v1 < 0 || v2 < 0 )
+    if ( v0 < 0 || v1 < 0 || v2 < 0 || v0 > 5 || v1 > 5 || v2 > 5 )
     {
       if ( ui->onpe0() )
-        cout << " blHF values must be > 0" << endl;
+        cout << " blHF values must be in [0,5]" << endl;
       return 1;
     }