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| 1 # 2007 April 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 # This file contains additional out-of-memory checks (see malloc.tcl) |
| 12 # added to expose a bug in out-of-memory handling for sqlite3_value_text() |
| 13 # |
| 14 # $Id: malloc8.test,v 1.7 2008/02/18 22:24:58 drh Exp $ |
| 15 |
| 16 set testdir [file dirname $argv0] |
| 17 source $testdir/tester.tcl |
| 18 source $testdir/malloc_common.tcl |
| 19 |
| 20 # Only run these tests if memory debugging is turned on. |
| 21 # |
| 22 if {!$MEMDEBUG} { |
| 23 puts "Skipping malloc8 tests: not compiled with -DSQLITE_MEMDEBUG..." |
| 24 finish_test |
| 25 return |
| 26 } |
| 27 |
| 28 |
| 29 # The setup is a database with UTF-16 encoding that contains a single |
| 30 # large string. We will be running lots of queries against this |
| 31 # database. Because we will be extracting the string as UTF-8, there |
| 32 # is a type conversion that occurs and thus an opportunity for malloc() |
| 33 # to fail and for sqlite3_value_text() to return 0 even though |
| 34 # sqlite3_value_type() returns SQLITE_TEXT. |
| 35 # |
| 36 |
| 37 do_malloc_test malloc8-1 -sqlprep { |
| 38 PRAGMA encoding='UTF-16'; |
| 39 CREATE TABLE t1(a); |
| 40 INSERT INTO t1 |
| 41 VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ'); |
| 42 } -sqlbody { |
| 43 SELECT lower(a), upper(a), quote(a), trim(a), trim('x',a) FROM t1; |
| 44 } |
| 45 do_malloc_test malloc8-2 -sqlprep { |
| 46 PRAGMA encoding='UTF-16'; |
| 47 CREATE TABLE t1(a); |
| 48 INSERT INTO t1 |
| 49 VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ'); |
| 50 } -sqlbody { |
| 51 SELECT replace(a,'x','y'), replace('x',a,'y'), replace('x','y',a) |
| 52 FROM t1; |
| 53 } |
| 54 do_malloc_test malloc8-3 -sqlprep { |
| 55 PRAGMA encoding='UTF-16'; |
| 56 CREATE TABLE t1(a); |
| 57 INSERT INTO t1 |
| 58 VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ'); |
| 59 } -sqlbody { |
| 60 SELECT length(a), substr(a, 4, 4) FROM t1; |
| 61 } |
| 62 ifcapable datetime { |
| 63 do_malloc_test malloc8-4 -sqlprep { |
| 64 PRAGMA encoding='UTF-16'; |
| 65 CREATE TABLE t1(a); |
| 66 INSERT INTO t1 |
| 67 VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ'); |
| 68 } -sqlbody { |
| 69 SELECT julianday(a,a) FROM t1; |
| 70 } |
| 71 } |
| 72 do_malloc_test malloc8-5 -sqlprep { |
| 73 PRAGMA encoding='UTF-16'; |
| 74 CREATE TABLE t1(a); |
| 75 INSERT INTO t1 |
| 76 VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ'); |
| 77 } -sqlbody { |
| 78 SELECT 1 FROM t1 WHERE a LIKE 'hello' ESCAPE NULL; |
| 79 } |
| 80 do_malloc_test malloc8-6 -sqlprep { |
| 81 PRAGMA encoding='UTF-16'; |
| 82 CREATE TABLE t1(a); |
| 83 INSERT INTO t1 |
| 84 VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ'); |
| 85 } -sqlbody { |
| 86 SELECT hex(randomblob(100)); |
| 87 } |
| 88 |
| 89 # Ensure that no file descriptors were leaked. |
| 90 do_test malloc-99.X { |
| 91 catch {db close} |
| 92 set sqlite_open_file_count |
| 93 } {0} |
| 94 |
| 95 finish_test |
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