@Test
public void test_ValidateExpressionTitles_NotOk() {
// just testing one
{ // -- literal string
AdditiveExpression titleExpr = pf.createAdditiveExpression();
titleExpr.setLeftExpr(createVariable("a"));
titleExpr.setRightExpr(createVariable("b"));
PuppetManifest pp = pf.createPuppetManifest();
EList<Expression> statements = pp.getStatements();
ResourceExpression re = createVirtualResourceExpression(
"monitor::foo", titleExpr, "owner", createValue("0777"), "group", createValue("0666"), "other",