public void testColumnNamesSelect() throws InvalidQueryException, IOException {
load("family.ltm");
String query = "select $M, $F from parenthood($M : mother, $F : father, $C : child)?";
QueryResultIF result = processor.execute(query);
String[] cols = result.getColumnNames();
assertTrue("wrong length of column name array", cols.length == 2);
assertTrue("M not first column", cols[0].equals("M"));
assertTrue("F not second column", cols[1].equals("F"));
}
public void testColumnNamesNoSelect() throws InvalidQueryException, IOException {
load("family.ltm");
String query = "parenthood($M : mother, $F : father, $C : child)?";
QueryResultIF result = processor.execute(query);
String[] cols = result.getColumnNames();
assertTrue("wrong length of column name array", cols.length == 3);
List vars = new ArrayList();
vars.add("M");
vars.add("F");
vars.add("C");
for (int ix = 0; ix < 3; ix++)
assertTrue("unknown variable " + cols[ix] + " found", vars.remove(cols[ix]));
assertTrue("not all variables found", vars.isEmpty());
}
