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+# 2001 September 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.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library.  The
+# focus of this file is testing the VACUUM statement.
+#
+# $Id: vacuum.test,v 1.43 2009/01/31 14:54:07 danielk1977 Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# If the VACUUM statement is disabled in the current build, skip all
+# the tests in this file.
+#
+ifcapable {!vacuum} {
+  omit_test vacuum.test {Compiled with SQLITE_OMIT_VACUUM}
+  finish_test
+  return
+}
+if $AUTOVACUUM {
+  omit_test vacuum.test {Auto-vacuum is enabled}
+  finish_test
+  return
+}
+
+set fcnt 1
+do_test vacuum-1.1 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
+    INSERT INTO t1 VALUES(NULL,randstr(10,100),randstr(5,50));
+    INSERT INTO t1 VALUES(123456,randstr(10,100),randstr(5,50));
+    INSERT INTO t1 SELECT NULL, b||'-'||rowid, c||'-'||rowid FROM t1;
+    INSERT INTO t1 SELECT NULL, b||'-'||rowid, c||'-'||rowid FROM t1;
+    INSERT INTO t1 SELECT NULL, b||'-'||rowid, c||'-'||rowid FROM t1;
+    INSERT INTO t1 SELECT NULL, b||'-'||rowid, c||'-'||rowid FROM t1;
+    INSERT INTO t1 SELECT NULL, b||'-'||rowid, c||'-'||rowid FROM t1;
+    INSERT INTO t1 SELECT NULL, b||'-'||rowid, c||'-'||rowid FROM t1;
+    INSERT INTO t1 SELECT NULL, b||'-'||rowid, c||'-'||rowid FROM t1;
+    CREATE INDEX i1 ON t1(b,c);
+    CREATE UNIQUE INDEX i2 ON t1(c,a);
+    CREATE TABLE t2 AS SELECT * FROM t1;
+    COMMIT;
+    DROP TABLE t2;
+  }
+  set ::size1 [file size test.db]
+  set ::cksum [cksum]
+  expr {$::cksum!=""}
+} {1}
+
+# Create bogus application-defined functions for functions used 
+# internally by VACUUM, to ensure that VACUUM falls back
+# to the built-in functions.
+#
+proc failing_app_func {args} {error "bad function"}
+do_test vacuum-1.1b {
+  db func substr failing_app_func
+  db func like failing_app_func
+  db func quote failing_app_func
+  catchsql {SELECT substr(name,1,3) FROM sqlite_master}
+} {1 {bad function}}
+
+do_test vacuum-1.2 {
+  execsql {
+    VACUUM;
+  }
+  cksum
+} $cksum
+ifcapable vacuum {
+  do_test vacuum-1.3 {
+    expr {[file size test.db]<$::size1}
+  } {1}
+}
+do_test vacuum-1.4 {
+  set sql_script {
+    BEGIN;
+    CREATE TABLE t2 AS SELECT * FROM t1;
+    CREATE TABLE t3 AS SELECT * FROM t1;
+    CREATE VIEW v1 AS SELECT b, c FROM t3;
+    CREATE TRIGGER r1 AFTER DELETE ON t2 BEGIN SELECT 1; END;
+    COMMIT;
+    DROP TABLE t2;
+  }
+  # If the library was compiled to omit view support, comment out the
+  # create view in the script $sql_script before executing it. Similarly,
+  # if triggers are not supported, comment out the trigger definition.
+  ifcapable !view {
+    regsub {CREATE VIEW} $sql_script {-- CREATE VIEW} sql_script
+  }
+  ifcapable !trigger {
+    regsub {CREATE TRIGGER} $sql_script {-- CREATE TRIGGER} sql_script
+  }
+  execsql $sql_script
+  set ::size1 [file size test.db]
+  set ::cksum [cksum]
+  expr {$::cksum!=""}
+} {1}
+do_test vacuum-1.5 {
+  execsql {
+    VACUUM;
+  }
+  cksum
+} $cksum
+
+ifcapable vacuum {
+  do_test vacuum-1.6 {
+    expr {[file size test.db]<$::size1}
+  } {1}
+}
+ifcapable vacuum {
+  do_test vacuum-2.1.1 {
+    catchsql {
+      BEGIN;
+      VACUUM;
+    }
+  } {1 {cannot VACUUM from within a transaction}}
+  do_test vacuum-2.1.2 {
+    sqlite3_get_autocommit db
+  } {0}
+  do_test vacuum-2.1.3 {
+    db eval {COMMIT}
+  } {}
+}
+do_test vacuum-2.2 {
+  sqlite3 db2 test.db
+  execsql {
+    BEGIN;
+    CREATE TABLE t4 AS SELECT * FROM t1;
+    CREATE TABLE t5 AS SELECT * FROM t1;
+    COMMIT;
+    DROP TABLE t4;
+    DROP TABLE t5;
+  } db2
+  set ::cksum [cksum db2]
+  catchsql {
+    VACUUM
+  }
+} {0 {}}
+do_test vacuum-2.3 {
+  cksum
+} $cksum
+do_test vacuum-2.4 {
+  catch {db2 eval {SELECT count(*) FROM sqlite_master}}
+  cksum db2
+} $cksum
+
+# Make sure the schema cookie is incremented by vacuum.
+#
+do_test vacuum-2.5 {
+  execsql {
+    BEGIN;
+    CREATE TABLE t6 AS SELECT * FROM t1;
+    CREATE TABLE t7 AS SELECT * FROM t1;
+    COMMIT;
+  }
+  sqlite3 db3 test.db
+  execsql {
+    -- The "SELECT * FROM sqlite_master" statement ensures that this test
+    -- works when shared-cache is enabled. If shared-cache is enabled, then
+    -- db3 shares a cache with db2 (but not db - it was opened as 
+    -- "./test.db").
+    SELECT * FROM sqlite_master;
+    SELECT * FROM t7 LIMIT 1
+  } db3
+  execsql {
+    VACUUM;
+  }
+  execsql {
+    INSERT INTO t7 VALUES(1234567890,'hello','world');
+  } db3
+  execsql {
+    SELECT * FROM t7 WHERE a=1234567890
+  }
+} {1234567890 hello world}
+integrity_check vacuum-2.6
+do_test vacuum-2.7 {
+  execsql {
+    SELECT * FROM t7 WHERE a=1234567890
+  } db3
+} {1234567890 hello world}
+do_test vacuum-2.8 {
+  execsql {
+    INSERT INTO t7 SELECT * FROM t6;
+    SELECT count(*) FROM t7;
+  }
+} 513
+integrity_check vacuum-2.9
+do_test vacuum-2.10 {
+  execsql {
+    DELETE FROM t7;
+    SELECT count(*) FROM t7;
+  } db3
+} 0
+integrity_check vacuum-2.11
+db3 close
+ 
+
+# Ticket #427.  Make sure VACUUM works when the EMPTY_RESULT_CALLBACKS
+# pragma is turned on.
+#
+do_test vacuum-3.1 {
+  db close
+  db2 close
+  delete_file test.db
+  sqlite3 db test.db
+  execsql {
+    PRAGMA empty_result_callbacks=on;
+    VACUUM;
+  }
+} {}
+
+# Ticket #464.  Make sure VACUUM works with the sqlite3_prepare() API.
+#
+do_test vacuum-4.1 {
+  db close
+  sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
+  set VM [sqlite3_prepare $DB {VACUUM} -1 TAIL]
+  sqlite3_step $VM
+} {SQLITE_DONE}
+do_test vacuum-4.2 {
+  sqlite3_finalize $VM
+} SQLITE_OK
+
+# Ticket #515.  VACUUM after deleting and recreating the table that
+# a view refers to. Omit this test if the library is not view-enabled.
+#
+ifcapable view {
+do_test vacuum-5.1 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  catchsql {
+    CREATE TABLE Test (TestID int primary key);
+    INSERT INTO Test VALUES (NULL);
+    CREATE VIEW viewTest AS SELECT * FROM Test;
+
+    BEGIN;
+    CREATE TABLE tempTest (TestID int primary key, Test2 int NULL);
+    INSERT INTO tempTest SELECT TestID, 1 FROM Test;
+    DROP TABLE Test;
+    CREATE TABLE Test(TestID int primary key, Test2 int NULL);
+    INSERT INTO Test SELECT * FROM tempTest;
+    DROP TABLE tempTest;
+    COMMIT;
+    VACUUM;
+  }
+} {0 {}}
+do_test vacuum-5.2 {
+  catchsql {
+    VACUUM;
+  }
+} {0 {}}
+} ;# ifcapable view
+
+# Ensure vacuum works with complicated tables names.
+do_test vacuum-6.1 {
+  execsql {
+    CREATE TABLE "abc abc"(a, b, c);
+    INSERT INTO "abc abc" VALUES(1, 2, 3);
+    VACUUM;
+  }
+} {}
+do_test vacuum-6.2 {
+  execsql {
+    select * from "abc abc";
+  }
+} {1 2 3}
+
+# Also ensure that blobs survive a vacuum.
+ifcapable {bloblit} {
+  do_test vacuum-6.3 {
+    execsql {
+      DELETE FROM "abc abc";
+      INSERT INTO "abc abc" VALUES(X'00112233', NULL, NULL);
+      VACUUM;
+    }
+  } {}
+  do_test vacuum-6.4 {
+    execsql {
+      select count(*) from "abc abc" WHERE a = X'00112233';
+    }
+  } {1}
+}
+
+# Check what happens when an in-memory database is vacuumed. The
+# [delete_file] command covers us in case the library was compiled
+# without in-memory database support.
+#
+forcedelete :memory:
+do_test vacuum-7.0 {
+  sqlite3 db2 :memory:
+  execsql {
+    CREATE TABLE t1(t);
+    VACUUM;
+  } db2
+} {}
+do_test vacuum-7.1 {
+  execsql {
+    CREATE TABLE t2(t);
+    CREATE TABLE t3(t);
+    DROP TABLE t2;
+    PRAGMA freelist_count;
+  }
+} {1}
+do_test vacuum-7.2 {
+  execsql {
+    VACUUM;
+    pragma integrity_check;
+  } db2
+} {ok}
+do_test vacuum-7.3 {
+  execsql { PRAGMA freelist_count; } db2
+} {0}
+ifcapable autovacuum {
+  do_test vacuum-7.4 {
+    execsql { PRAGMA auto_vacuum } db2
+  } {0}
+  do_test vacuum-7.5 {
+    execsql { PRAGMA auto_vacuum = 1} db2
+    execsql { PRAGMA auto_vacuum } db2
+  } {0}
+  do_test vacuum-7.6 {
+    execsql { PRAGMA auto_vacuum = 1} db2
+    execsql { VACUUM } db2
+    execsql { PRAGMA auto_vacuum } db2
+  } {1}
+}
+db2 close
+
+# Ticket #873.  VACUUM a database that has ' in its name.
+#
+do_test vacuum-8.1 {
+  forcedelete a'z.db
+  forcedelete a'z.db-journal
+  sqlite3 db2 a'z.db
+  execsql {
+    CREATE TABLE t1(t);
+    VACUUM;
+  } db2
+} {}
+db2 close
+
+# Ticket #1095:  Vacuum a table that uses AUTOINCREMENT
+#
+ifcapable {autoinc} {
+  do_test vacuum-9.1 {
+    execsql {
+      DROP TABLE 'abc abc';
+      CREATE TABLE autoinc(a INTEGER PRIMARY KEY AUTOINCREMENT, b);
+      INSERT INTO autoinc(b) VALUES('hi');
+      INSERT INTO autoinc(b) VALUES('there');
+      DELETE FROM autoinc;
+    }
+    set ::cksum [cksum]
+    expr {$::cksum!=""}
+  } {1}
+  do_test vacuum-9.2 {
+    execsql {
+      VACUUM;
+    }
+    cksum
+  } $::cksum
+  do_test vacuum-9.3 {
+    execsql {
+      INSERT INTO autoinc(b) VALUES('one');
+      INSERT INTO autoinc(b) VALUES('two');
+    }
+    set ::cksum [cksum]
+    expr {$::cksum!=""}
+  } {1}
+  do_test vacuum-9.4 {
+    execsql {
+      VACUUM;
+    }
+    cksum
+  } $::cksum
+}
+
+forcedelete {a'z.db}
+
+# Test that "PRAGMA count_changes" does not interfere with VACUUM or cause
+# it to return any rows to the user.
+#
+do_test vacuum-10.1 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  execsql {
+    CREATE TABLE t8(a, b);
+    INSERT INTO t8 VALUES('a', 'b');
+    INSERT INTO t8 VALUES('c', 'd');
+    PRAGMA count_changes = 1;
+  }
+} {}
+do_test vacuum-10.2 { execsql VACUUM } {}
+
+finish_test