From ae8bd4267ac2da58f9e476d24e1e894202e92dea Mon Sep 17 00:00:00 2001 From: Michael Stahl Date: Mon, 12 Dec 2016 23:17:51 +0100 Subject: dbaccess: fix testCloneMovesPlusDeletions test JunitTest_dbaccess_complex spuriously fails 1% of the time with: 1) testCloneMovesPlusDeletions(complex.dbaccess.RowSet) java.lang.AssertionError: moving to the next record after |deleteRow| and clone moves failed at complex.dbaccess.RowSet.testCloneMovesPlusDeletions(RowSet.java:756) The problem is that line RowSet.java:750 deleteRow() manages to delete the last row in the set, because the positionRandom() is tricked to position itself on the last row (which it tries not to do), becuase the RowSet is currently positioned past-the-end on a deleted row and the ORowSetBase::impl_getRowCount() is a lying bastard that adds 1 to the result in this special case. Funnily both the ORowSetBase::impl_getRowCount() and the test using positionRandom() were added in CWS rowsetdel. Yay for randomized tests! Change-Id: Ic8c7bfa190f6a5269604cf5b3c338f2d0b64205e --- dbaccess/qa/complex/dbaccess/RowSet.java | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/dbaccess/qa/complex/dbaccess/RowSet.java b/dbaccess/qa/complex/dbaccess/RowSet.java index 2cbf942d94e1..e617d2546525 100644 --- a/dbaccess/qa/complex/dbaccess/RowSet.java +++ b/dbaccess/qa/complex/dbaccess/RowSet.java @@ -528,7 +528,12 @@ public class RowSet extends TestCase */ private int positionRandom() throws SQLException, UnknownPropertyException, WrappedTargetException { - final int position = (new Random()).nextInt(currentRowCount() - 2) + 2; + // note: obviously this should subtract 2 but actually subtract 3 + // because if we have just deleted the current row then + // ORowSetBase::impl_getRowCount() will lie and currentRowCount() + // returns 1 more than the actual number of rows and then + // positionRandom() followed by deleteRow() deletes *last* row + final int position = (new Random()).nextInt(currentRowCount() - 3) + 2; assertTrue("sub task failed: could not position to row no. " + (Integer.valueOf(position)).toString(), m_resultSet.absolute(position)); return m_resultSet.getRow(); -- cgit v1.2.3