[sqlite] Remove obsolete reference version 3.8.7.4.

third_party/sqlite/sqlite-src-3080704/test/laststmtchanges.test

-#
-# 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.
-#
-#***********************************************************************
-#
-# Tests to make sure that values returned by changes() and total_changes()
-# are updated properly, especially inside triggers
-#
-# Note 1: changes() remains constant within a statement and only updates
-#         once the statement is finished (triggers count as part of
-#         statement).
-# Note 2: changes() is changed within the context of a trigger much like 
-#         last_insert_rowid() (see lastinsert.test), but is restored once
-#         the trigger exits.
-# Note 3: changes() is not changed by a change to a view (since everything
-#         is done within instead of trigger context).
-#
-# $Id: laststmtchanges.test,v 1.7 2008/10/27 13:59:34 danielk1977 Exp $
-
-set testdir [file dirname $argv0]
-source $testdir/tester.tcl
-
-# ----------------------------------------------------------------------------
-# 1.x - basic tests (no triggers)
-
-# changes() set properly after insert
-do_test laststmtchanges-1.1 {
-    catchsql {
-        create table t0 (x);
-        insert into t0 values (1);
-        insert into t0 values (1);
-        insert into t0 values (2);
-        insert into t0 values (2);
-        insert into t0 values (1);
-        insert into t0 values (1);
-        insert into t0 values (1);
-        insert into t0 values (2);
-        select changes(), total_changes();
-    }
-} {0 {1 8}}
-
-# changes() set properly after update
-do_test laststmtchanges-1.2 {
-    catchsql {
-        update t0 set x=3 where x=1;
-        select changes(), total_changes();
-    }
-} {0 {5 13}}
-
-# There was some goofy change-counting logic in sqlite3_exec() that
-# appears to have been left over from SQLite version 2.  This test
-# makes sure it has been removed.
-#
-do_test laststmtchanges-1.2.1 {
-    db cache flush
-    sqlite3_exec_printf db {update t0 set x=4 where x=3; select 1;} {}
-    execsql {select changes()}
-} {5}
-
-# changes() unchanged within an update statement
-do_test laststmtchanges-1.3 {
-    execsql {update t0 set x=3 where x=4}
-    catchsql {
-        update t0 set x=x+changes() where x=3;
-        select count() from t0 where x=8;
-    }
-} {0 5}
-
-# changes() set properly after update on table where no rows changed
-do_test laststmtchanges-1.4 {
-    catchsql {
-        update t0 set x=77 where x=88;
-        select changes();
-    }
-} {0 0}
-
-# changes() set properly after delete from table
-do_test laststmtchanges-1.5 {
-    catchsql {
-        delete from t0 where x=2;
-        select changes();
-    }
-} {0 3}
-
-# All remaining tests involve triggers.  Skip them if triggers are not
-# supported in this build.
-#
-ifcapable {!trigger} {
-  finish_test
-  return
-}
-
-
-# ----------------------------------------------------------------------------
-# 2.x - tests with after insert trigger
-
-# changes() changed properly after insert into table containing after trigger
-do_test laststmtchanges-2.1 {
-    set ::tc [db total_changes]
-    catchsql {
-        create table t1 (k integer primary key);
-        create table t2 (k integer primary key, v1, v2);
-        create trigger r1 after insert on t1 for each row begin
-            insert into t2 values (NULL, changes(), NULL);
-            update t0 set x=x;
-            update t2 set v2=changes();
-        end;
-        insert into t1 values (77);
-        select changes();
-    }
-} {0 1}
-
-# changes() unchanged upon entry into after insert trigger
-do_test laststmtchanges-2.2 {
-    catchsql {
-        select v1 from t2;
-    }
-} {0 3}
-
-# changes() changed properly by update within context of after insert trigger
-do_test laststmtchanges-2.3 {
-    catchsql {
-        select v2 from t2;
-    }
-} {0 5}
-
-# Total changes caused by firing the trigger above:
-#
-#   1 from "insert into t1 values(77)" + 
-#   1 from "insert into t2 values (NULL, changes(), NULL);" +
-#   5 from "update t0 set x=x;" +
-#   1 from "update t2 set v2=changes();"
-#
-do_test laststmtchanges-2.4 {
-  expr [db total_changes] - $::tc
-} {8}
-
-# ----------------------------------------------------------------------------
-# 3.x - tests with after update trigger
-
-# changes() changed properly after update into table containing after trigger
-do_test laststmtchanges-3.1 {
-    catchsql {
-        drop trigger r1;
-        delete from t2; delete from t2;
-        create trigger r1 after update on t1 for each row begin
-            insert into t2 values (NULL, changes(), NULL);
-            delete from t0 where oid=1 or oid=2;
-            update t2 set v2=changes();
-        end;
-        update t1 set k=k;
-        select changes();
-    }
-} {0 1}
-
-# changes() unchanged upon entry into after update trigger
-do_test laststmtchanges-3.2 {
-    catchsql {
-        select v1 from t2;
-    }
-} {0 0}
-
-# changes() changed properly by delete within context of after update trigger
-do_test laststmtchanges-3.3 {
-    catchsql {
-        select v2 from t2;
-    }
-} {0 2}
-
-# ----------------------------------------------------------------------------
-# 4.x - tests with before delete trigger
-
-# changes() changed properly on delete from table containing before trigger
-do_test laststmtchanges-4.1 {
-    catchsql {
-        drop trigger r1;
-        delete from t2; delete from t2;
-        create trigger r1 before delete on t1 for each row begin
-            insert into t2 values (NULL, changes(), NULL);
-            insert into t0 values (5);
-            update t2 set v2=changes();
-        end;
-        delete from t1;
-        select changes();
-    }
-} {0 1}
-
-# changes() unchanged upon entry into before delete trigger
-do_test laststmtchanges-4.2 {
-    catchsql {
-        select v1 from t2;
-    }
-} {0 0}
-
-# changes() changed properly by insert within context of before delete trigger
-do_test laststmtchanges-4.3 {
-    catchsql {
-        select v2 from t2;
-    }
-} {0 1}
-
-# ----------------------------------------------------------------------------
-# 5.x - complex tests with temporary tables and nested instead of triggers
-# These tests cannot run if the library does not have view support enabled.
-
-ifcapable view&&tempdb {
-
-do_test laststmtchanges-5.1 {
-    catchsql {
-        drop table t0; drop table t1; drop table t2;
-        create temp table t0(x);
-        create temp table t1 (k integer primary key);
-        create temp table t2 (k integer primary key);
-        create temp view v1 as select * from t1;
-        create temp view v2 as select * from t2;
-        create temp table n1 (k integer primary key, n);
-        create temp table n2 (k integer primary key, n);
-        insert into t0 values (1);
-        insert into t0 values (2);
-        insert into t0 values (1);
-        insert into t0 values (1);
-        insert into t0 values (1);
-        insert into t0 values (2);
-        insert into t0 values (2);
-        insert into t0 values (1);
-        create temp trigger r1 instead of insert on v1 for each row begin
-            insert into n1 values (NULL, changes());
-            update t0 set x=x*10 where x=1;
-            insert into n1 values (NULL, changes());
-            insert into t1 values (NEW.k);
-            insert into n1 values (NULL, changes());
-            update t0 set x=x*10 where x=0;
-            insert into v2 values (100+NEW.k);
-            insert into n1 values (NULL, changes());
-        end;
-        create temp trigger r2 instead of insert on v2 for each row begin
-            insert into n2 values (NULL, changes());
-            insert into t2 values (1000+NEW.k);
-            insert into n2 values (NULL, changes());
-            update t0 set x=x*100 where x=0;
-            insert into n2 values (NULL, changes());
-            delete from t0 where x=2;
-            insert into n2 values (NULL, changes());
-        end;
-        insert into t1 values (77);
-        select changes();
-    }
-} {0 1}
-
-do_test laststmtchanges-5.2 {
-    catchsql {
-        delete from t1 where k=88;
-        select changes();
-    }
-} {0 0}
-
-do_test laststmtchanges-5.3 {
-    catchsql {
-        insert into v1 values (5);
-        select changes();
-    }
-} {0 0}
-
-do_test laststmtchanges-5.4 {
-    catchsql {
-        select n from n1;
-    }
-} {0 {0 5 1 0}}
-
-do_test laststmtchanges-5.5 {
-    catchsql {
-        select n from n2;
-    }
-} {0 {0 1 0 3}}
-
-} ;# ifcapable view
-
-
-# ----------------------------------------------------------------------------
-# 6.x - Test "DELETE FROM <table>" in the absence of triggers
-#
-do_test laststmtchanges-6.1 {
-  execsql {
-    CREATE TABLE t3(a, b, c);
-    INSERT INTO t3 VALUES(1, 2, 3);
-    INSERT INTO t3 VALUES(4, 5, 6);
-  }
-} {}
-do_test laststmtchanges-6.2 {
-  execsql {
-    BEGIN;
-    DELETE FROM t3;
-    SELECT changes();
-  }
-} {2}
-do_test laststmtchanges-6.3 {
-  execsql {
-    ROLLBACK;
-    BEGIN;
-    DELETE FROM t3 WHERE a IS NOT NULL;
-    SELECT changes();
-  }
-} {2}
-do_test laststmtchanges-6.4 {
-  execsql {
-    ROLLBACK;
-    CREATE INDEX t3_i1 ON t3(a);
-    BEGIN;
-    DELETE FROM t3;
-    SELECT changes();
-  }
-} {2}
-do_test laststmtchanges-6.5 {
-  execsql { ROLLBACK }
-  set nTotalChange [execsql {SELECT total_changes()}]
-  expr 0
-} {0}
-do_test laststmtchanges-6.6 {
-  execsql {
-    SELECT total_changes();
-    DELETE FROM t3;
-    SELECT total_changes();
-  }
-} [list $nTotalChange [expr $nTotalChange+2]]
-
-finish_test