# 2016 December 15
#
# 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.
#
#***********************************************************************
#
# Test the shell tool ".lint fkey-indexes" command.
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl
ifcapable !vtab {finish_test; return}
set testprefix shell6
set CLI [test_find_cli]
db close
forcedelete test.db test.db-journal test.db-wal

foreach {tn schema output} {
  1 {
    CREATE TABLE p1(a PRIMARY KEY, b);
    CREATE TABLE c1(x, y REFERENCES p1);
  } {
    CREATE INDEX 'c1_y' ON 'c1'('y'); --> p1(a)
  }

  2 {
    CREATE TABLE p1(a PRIMARY KEY, b);
    CREATE TABLE c2(x REFERENCES p1, y REFERENCES p1);
  } {
    CREATE INDEX 'c2_y' ON 'c2'('y'); --> p1(a)
    CREATE INDEX 'c2_x' ON 'c2'('x'); --> p1(a)
  }

  3 {
    CREATE TABLE 'p 1'(a, b, c, PRIMARY KEY(c, b));
    CREATE TABLE 'c 1'(x, y, z, FOREIGN KEY (z, y) REFERENCES 'p 1');
  } {
    CREATE INDEX 'c 1_z_y' ON 'c 1'('z', 'y'); --> p 1(c,b)
  }

  4 {
    CREATE TABLE p1(a, 'b b b' PRIMARY KEY);
    CREATE TABLE c1('x y z' REFERENCES p1);
    CREATE INDEX i1 ON c1('x y z') WHERE "x y z" IS NOT NULL;
  } {
  }

  5 {
    CREATE TABLE p1(a, 'b b b' PRIMARY KEY);
    CREATE TABLE c1('x y z' REFERENCES p1);
    CREATE INDEX i1 ON c1('x y z') WHERE "x y z" IS NOT 12;
  } {
    CREATE INDEX 'c1_x y z' ON 'c1'('x y z'); --> p1(b b b)
  }

  6 {
    CREATE TABLE x1(a, b, c, UNIQUE(a, b));
    CREATE TABLE y1(a, b, c, FOREIGN KEY(b, a) REFERENCES x1(a, b));
    CREATE INDEX y1i ON y1(a, c, b);
  } {
    CREATE INDEX 'y1_b_a' ON 'y1'('b', 'a'); --> x1(a,b)
  }

  6 {
    CREATE TABLE x1(a COLLATE nocase, b, UNIQUE(a));
    CREATE TABLE y1(a COLLATE rtrim REFERENCES x1(a));
  } {
    CREATE INDEX 'y1_a' ON 'y1'('a' COLLATE nocase); --> x1(a)
  }

  7 {
    CREATE TABLE x1(a PRIMARY KEY COLLATE nocase, b);
    CREATE TABLE y1(a REFERENCES x1);
  } {
    CREATE INDEX 'y1_a' ON 'y1'('a' COLLATE nocase); --> x1(a)
  }

  8 {
    CREATE TABLE x1(a, b COLLATE nocase, c COLLATE rtrim, PRIMARY KEY(c, b, a));
    CREATE TABLE y1(d, e, f, FOREIGN KEY(d, e, f) REFERENCES x1);
  } {
    CREATE INDEX 'y1_d_e_f' ON 'y1'('d' COLLATE rtrim, 'e' COLLATE nocase, 'f'); --> x1(c,b,a)
  }

  9 {
    CREATE TABLE p1(a, b UNIQUE);
    CREATE TABLE c1(x INTEGER PRIMARY KEY REFERENCES p1(b));
  } {
  }

} {
  forcedelete test.db
  sqlite3 db test.db
  execsql $schema

  set expected ""
  foreach line [split $output "\n"] {
    set line [string trim $line]
    if {$line!=""} {
      append expected "$line\n"
    }
  }

  do_test 1.$tn.1 {
    set RES [catchcmd test.db [list .lint fkey-indexes]]
  } [list 0 [string trim $expected]]

  do_test 1.$tn.2 {
    execsql [lindex $RES 1]
    catchcmd test.db [list .lint fkey-indexes]
  } {0 {}}

  db close
}

finish_test
