1# 2014-09-25 2# 3# The author disclaims copyright to this source code. In place of 4# a legal notice, here is a blessing: 5# 6# May you do good and not evil. 7# May you find forgiveness for yourself and forgive others. 8# May you share freely, never taking more than you give. 9# 10#*********************************************************************** 11# 12# This file contains tests for the "truncate" option in the multiplexor. 13# 14 15set testdir [file dirname $argv0] 16source $testdir/tester.tcl 17set ::testprefix multiplex4 18 19db close 20sqlite3_shutdown 21sqlite3_multiplex_initialize {} 0 22 23# delete all filesl with the base name of $basename 24# 25proc multiplex_delete_db {basename} { 26 foreach file [glob -nocomplain $basename.*] { 27 forcedelete $file 28 } 29} 30 31# Return a sorted list of all files with the base name of $basename. 32# Except, delete all text from the end of $basename through the NNN 33# suffix on the end of the filename. 34# 35proc multiplex_file_list {basename} { 36 set x {} 37 foreach file [glob -nocomplain $basename.*] { 38 regsub "^$basename\\..*(\\d\\d\\d)\$" $file $basename.\\1 file 39 lappend x $file 40 } 41 return [lsort $x] 42} 43 44do_test multiplex4-1.0 { 45 multiplex_delete_db mx4test 46 sqlite3 db {file:mx4test.db?chunksize=10&truncate=1} -uri 1 -vfs multiplex 47 db eval { 48 CREATE TABLE t1(x); 49 INSERT INTO t1(x) VALUES(randomblob(250000)); 50 } 51 multiplex_file_list mx4test 52} {mx4test.001 mx4test.db} 53 54do_test multiplex4-1.1 { 55 db eval { 56 DELETE FROM t1; 57 VACUUM; 58 } 59 multiplex_file_list mx4test 60} {mx4test.db} 61 62# NB: The PRAGMA multiplex_truncate command is implemented using the 63# SQLITE_FCNTL_PRAGMA file-control... 64# 65# EVIDENCE-OF: R-12238-55120 Whenever a PRAGMA statement is parsed, an 66# SQLITE_FCNTL_PRAGMA file control is sent to the open sqlite3_file 67# object corresponding to the database file to which the pragma 68# statement refers. 69# 70do_test multiplex4-1.2 { 71 db eval {PRAGMA multiplex_truncate} 72} {on} 73do_test multiplex4-1.3 { 74 db eval {PRAGMA multiplex_truncate=off} 75} {off} 76do_test multiplex4-1.4 { 77 db eval {PRAGMA multiplex_truncate} 78} {off} 79do_test multiplex4-1.5 { 80 db eval {PRAGMA multiplex_truncate=on} 81} {on} 82do_test multiplex4-1.6 { 83 db eval {PRAGMA multiplex_truncate} 84} {on} 85do_test multiplex4-1.7 { 86 db eval {PRAGMA multiplex_truncate=0} 87} {off} 88do_test multiplex4-1.8 { 89 db eval {PRAGMA multiplex_truncate=1} 90} {on} 91do_test multiplex4-1.9 { 92 db eval {PRAGMA multiplex_truncate=0} 93} {off} 94 95# EVIDENCE-OF: R-26188-08449 If the SQLITE_FCNTL_PRAGMA file control 96# returns SQLITE_OK, then the parser assumes that the VFS has handled 97# the PRAGMA itself and the parser generates a no-op prepared statement 98# if result string is NULL, or that returns a copy of the result string 99# if the string is non-NULL. 100# 101do_test multiplex4-1.9-explain { 102 db eval {EXPLAIN PRAGMA multiplex_truncate=0;} 103} {/String8 \d \d \d off/} 104 105do_test multiplex4-1.10 { 106 db eval { 107 INSERT INTO t1(x) VALUES(randomblob(250000)); 108 } 109 multiplex_file_list mx4test 110} {mx4test.001 mx4test.db} 111 112do_test multiplex4-1.11 { 113 db eval { 114 DELETE FROM t1; 115 VACUUM; 116 } 117 multiplex_file_list mx4test 118} {mx4test.001 mx4test.db} 119 120do_test multiplex4-1.12 { 121 db eval { 122 PRAGMA multiplex_truncate=ON; 123 DROP TABLE t1; 124 VACUUM; 125 } 126 multiplex_file_list mx4test 127} {mx4test.db} 128 129catch { db close } 130forcedelete mx4test.db 131sqlite3_multiplex_shutdown 132finish_test 133