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1 # 2007 April 25 |
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2 # |
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3 # The author disclaims copyright to this source code. In place of |
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4 # a legal notice, here is a blessing: |
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5 # |
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6 # May you do good and not evil. |
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7 # May you find forgiveness for yourself and forgive others. |
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8 # May you share freely, never taking more than you give. |
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9 # |
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10 #*********************************************************************** |
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11 # This file contains additional out-of-memory checks (see malloc.tcl) |
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12 # added to expose a bug in out-of-memory handling for sqlite3_value_text() |
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13 # |
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14 # $Id: malloc8.test,v 1.7 2008/02/18 22:24:58 drh Exp $ |
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15 |
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16 set testdir [file dirname $argv0] |
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17 source $testdir/tester.tcl |
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18 source $testdir/malloc_common.tcl |
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19 |
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20 # Only run these tests if memory debugging is turned on. |
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21 # |
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22 if {!$MEMDEBUG} { |
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23 puts "Skipping malloc8 tests: not compiled with -DSQLITE_MEMDEBUG..." |
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24 finish_test |
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25 return |
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26 } |
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27 |
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28 |
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29 # The setup is a database with UTF-16 encoding that contains a single |
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30 # large string. We will be running lots of queries against this |
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31 # database. Because we will be extracting the string as UTF-8, there |
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32 # is a type conversion that occurs and thus an opportunity for malloc() |
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33 # to fail and for sqlite3_value_text() to return 0 even though |
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34 # sqlite3_value_type() returns SQLITE_TEXT. |
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35 # |
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36 |
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37 do_malloc_test malloc8-1 -sqlprep { |
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38 PRAGMA encoding='UTF-16'; |
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39 CREATE TABLE t1(a); |
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40 INSERT INTO t1 |
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41 VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ'); |
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42 } -sqlbody { |
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43 SELECT lower(a), upper(a), quote(a), trim(a), trim('x',a) FROM t1; |
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44 } |
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45 do_malloc_test malloc8-2 -sqlprep { |
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46 PRAGMA encoding='UTF-16'; |
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47 CREATE TABLE t1(a); |
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48 INSERT INTO t1 |
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49 VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ'); |
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50 } -sqlbody { |
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51 SELECT replace(a,'x','y'), replace('x',a,'y'), replace('x','y',a) |
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52 FROM t1; |
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53 } |
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54 do_malloc_test malloc8-3 -sqlprep { |
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55 PRAGMA encoding='UTF-16'; |
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56 CREATE TABLE t1(a); |
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57 INSERT INTO t1 |
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58 VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ'); |
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59 } -sqlbody { |
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60 SELECT length(a), substr(a, 4, 4) FROM t1; |
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61 } |
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62 ifcapable datetime { |
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63 do_malloc_test malloc8-4 -sqlprep { |
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64 PRAGMA encoding='UTF-16'; |
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65 CREATE TABLE t1(a); |
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66 INSERT INTO t1 |
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67 VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ'); |
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68 } -sqlbody { |
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69 SELECT julianday(a,a) FROM t1; |
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70 } |
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71 } |
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72 do_malloc_test malloc8-5 -sqlprep { |
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73 PRAGMA encoding='UTF-16'; |
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74 CREATE TABLE t1(a); |
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75 INSERT INTO t1 |
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76 VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ'); |
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77 } -sqlbody { |
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78 SELECT 1 FROM t1 WHERE a LIKE 'hello' ESCAPE NULL; |
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79 } |
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80 do_malloc_test malloc8-6 -sqlprep { |
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81 PRAGMA encoding='UTF-16'; |
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82 CREATE TABLE t1(a); |
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83 INSERT INTO t1 |
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84 VALUES('0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ'); |
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85 } -sqlbody { |
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86 SELECT hex(randomblob(100)); |
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87 } |
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88 |
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89 # Ensure that no file descriptors were leaked. |
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90 do_test malloc-99.X { |
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91 catch {db close} |
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92 set sqlite_open_file_count |
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93 } {0} |
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94 |
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95 finish_test |