# 2018 May 8
#
# The author disclaims copyright to this source code.  In place of
# a legal notice, here is a blessing:
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl
set testprefix windowfault

ifcapable !windowfunc {
  finish_test
  return
}

do_execsql_test 1.0 {
  CREATE TABLE t1(a, b, c, d);
  INSERT INTO t1 VALUES(1, 2, 3, 4);
  INSERT INTO t1 VALUES(5, 6, 7, 8);
  INSERT INTO t1 VALUES(9, 10, 11, 12);
}
faultsim_save_and_close

do_faultsim_test 1 -start 1 -faults oom-* -prep {
  faultsim_restore_and_reopen
} -body {
  execsql {
    SELECT row_number() OVER win,
           rank() OVER win,
           dense_rank() OVER win,
           ntile(2) OVER win,
           first_value(d) OVER win,
           last_value(d) OVER win,
           nth_value(d,2) OVER win,
           lead(d) OVER win,
           lag(d) OVER win,
           max(d) OVER win,
           min(d) OVER win
    FROM t1
    WINDOW win AS (ORDER BY a)
  }
} -test {
  faultsim_test_result {0 {1 1 1 1 4 4 {} 8 {} 4 4 2 2 2 1 4 8 8 12 4 8 4 3 3 3 2 4 12 8 {} 8 12 4}}
}

do_faultsim_test 1.1 -faults oom-t* -prep {
  faultsim_restore_and_reopen
} -body {
  execsql {
    SELECT row_number() OVER win,
           rank() OVER win,
           dense_rank() OVER win
    FROM t1
    WINDOW win AS (PARTITION BY c<7 ORDER BY a)
  }
} -test {
  faultsim_test_result {0 {1 1 1 2 2 2 1 1 1}}
}

do_faultsim_test 1.2 -faults oom-t* -prep {
  faultsim_restore_and_reopen
} -body {
  execsql {
    SELECT ntile(105) 
    OVER ( RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) 
    FROM t1
  }
} -test {
  faultsim_test_result {0 {1 2 3}}
}

do_faultsim_test 2 -start 1 -faults oom-* -prep {
  faultsim_restore_and_reopen
} -body {
  execsql {
    SELECT round(percent_rank() OVER win, 2),
           round(cume_dist() OVER win, 2)
    FROM t1
    WINDOW win AS (ORDER BY a)
  }
} -test {
  faultsim_test_result {0 {0.0 0.33 0.5 0.67 1.0 1.0}}
}

do_faultsim_test 3 -faults oom-* -prep {
  faultsim_restore_and_reopen
} -body {
  execsql {
    SELECT min(d) OVER win, max(d) OVER win
    FROM t1
    WINDOW win AS (ORDER BY a RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING)
  }
} -test {
  faultsim_test_result {0 {4 12 8 12 12 12}}
}

do_faultsim_test 4 -faults oom-* -prep {
  faultsim_restore_and_reopen
} -body {
  execsql {
    CREATE VIEW aaa AS
    SELECT min(d) OVER w, max(d) OVER w
    FROM t1
    WINDOW w AS (ORDER BY a RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING);
    SELECT * FROM aaa;
  }
} -test {
  faultsim_test_result {0 {4 12 8 12 12 12}}
}

do_faultsim_test 5 -start 1 -faults oom-* -prep {
  faultsim_restore_and_reopen
} -body {
  execsql {
    SELECT last_value(a) OVER win1,
           last_value(a) OVER win2
    FROM t1
    WINDOW win1 AS (ORDER BY a ROWS BETWEEN CURRENT ROW AND 1 FOLLOWING),
           win2 AS (ORDER BY a)
  }
} -test {
  faultsim_test_result {0 {5 1 9 5 9 9}}
}

do_faultsim_test 6 -faults oom-* -prep {
  faultsim_restore_and_reopen
} -body {
  execsql {
    SELECT percent_rank() OVER (), cume_dist() OVER () FROM t1
  }
} -test {
  faultsim_test_result {0 {0.0 1.0 0.0 1.0 0.0 1.0}}
}

do_faultsim_test 7 -faults oom-* -prep {
  faultsim_restore_and_reopen
} -body {
  execsql {
    SELECT percent_rank() OVER (), cume_dist() OVER () FROM t1
  }
} -test {
  faultsim_test_result {0 {0.0 1.0 0.0 1.0 0.0 1.0}}
}

do_faultsim_test 8 -faults oom-t* -prep {
  faultsim_restore_and_reopen
} -body {
  execsql {
    SELECT a, sum(b) OVER win1 FROM t1
      WINDOW win1 AS (PARTITION BY a ),
             win2 AS (PARTITION BY b )
    ORDER BY a;
  }
} -test {
  faultsim_test_result {0 {1 2 5 6 9 10}}
}

finish_test