+ SequenceCursor cursor2 = (SequenceCursor) PA.getValue(sq, "cursor");
+ assertSame(cursor2, cursor);
+
+ /*
+ * sequence 'end' beyond end of sequence returns length of sequence
+ * (for compatibility with pre-cursor code)
+ * - also verify the cursor is left in a valid state
+ */
+ sq = new Sequence("test/8-99", "-A--B-C-D-E-F--"); // trailing gap case
+ assertEquals(7, sq.findIndex(10)); // establishes a cursor
+ cursor = (SequenceCursor) PA.getValue(sq, "cursor");
+ assertEquals(10, cursor.residuePosition);
+ assertEquals(7, cursor.columnPosition);
+ assertEquals(sq.getLength(), sq.findIndex(65));
+ cursor2 = (SequenceCursor) PA.getValue(sq, "cursor");
+ assertSame(cursor, cursor2); // not updated for this case!
+
+ sq = new Sequence("test/8-99", "-A--B-C-D-E-F"); // trailing residue case
+ sq.findIndex(10); // establishes a cursor
+ cursor = (SequenceCursor) PA.getValue(sq, "cursor");
+ assertEquals(sq.getLength(), sq.findIndex(65));
+ cursor2 = (SequenceCursor) PA.getValue(sq, "cursor");
+ assertSame(cursor, cursor2); // not updated for this case!
+
+ /*
+ * residue after sequence 'start' but before first residue should return
+ * zero (for compatibility with pre-cursor code)
+ */
+ sq = new Sequence("test/8-15", "-A-B-C-"); // leading gap case
+ sq.findIndex(10); // establishes a cursor
+ cursor = (SequenceCursor) PA.getValue(sq, "cursor");
+ assertEquals(0, sq.findIndex(3));
+ cursor2 = (SequenceCursor) PA.getValue(sq, "cursor");
+ assertSame(cursor, cursor2); // not updated for this case!
+
+ sq = new Sequence("test/8-15", "A-B-C-"); // leading residue case
+ sq.findIndex(10); // establishes a cursor
+ cursor = (SequenceCursor) PA.getValue(sq, "cursor");
+ assertEquals(0, sq.findIndex(2));
+ cursor2 = (SequenceCursor) PA.getValue(sq, "cursor");
+ assertSame(cursor, cursor2); // not updated for this case!