wasCSharpSQLite – Blame information for rev 7
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Rev | Author | Line No. | Line |
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1 | office | 1 | # 2009 April 20 |
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 | # |
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12 | # Test cases inspired by ticket #3811. Tests to make sure that |
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13 | # the journal_mode can only be changed at appropriate times and that |
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14 | # all reported changes are effective. |
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15 | # |
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16 | # $Id: jrnlmode3.test,v 1.5 2009/04/20 17:43:03 drh Exp $ |
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17 | |||
18 | set testdir [file dirname $argv0] |
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19 | source $testdir/tester.tcl |
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20 | |||
21 | ifcapable {!pager_pragmas} { |
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22 | finish_test |
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23 | return |
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24 | } |
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25 | |||
26 | # |
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27 | # Verify that journal_mode=OFF works as long as it occurs before the first |
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28 | # transaction, even if locking_mode=EXCLUSIVE is enabled. The behavior if |
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29 | # journal_mode is changed after the first transaction is undefined and hence |
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30 | # untested. |
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31 | # |
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32 | do_test jrnlmode3-1.1 { |
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33 | db eval { |
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34 | PRAGMA journal_mode=OFF; |
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35 | PRAGMA locking_mode=EXCLUSIVE; |
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36 | CREATE TABLE t1(x); |
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37 | INSERT INTO t1 VALUES(1); |
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38 | SELECT * FROM t1; |
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39 | } |
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40 | } {off exclusive 1} |
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41 | do_test jrnlmode3-1.2 { |
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42 | db eval { |
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43 | BEGIN; |
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44 | INSERT INTO t1 VALUES(2); |
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45 | ROLLBACK; |
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46 | SELECT * FROM t1; |
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47 | } |
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48 | } {1} |
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49 | |||
50 | db close |
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51 | file delete -force test.db test.db-journal |
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52 | sqlite3 db test.db |
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53 | |||
54 | do_test jrnlmode3-2.1 { |
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55 | db eval { |
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56 | PRAGMA locking_mode=EXCLUSIVE; |
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57 | PRAGMA journal_mode=OFF; |
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58 | CREATE TABLE t1(x); |
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59 | INSERT INTO t1 VALUES(1); |
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60 | SELECT * FROM t1; |
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61 | } |
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62 | } {exclusive off 1} |
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63 | do_test jrnlmode3-2.2 { |
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64 | db eval { |
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65 | BEGIN; |
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66 | INSERT INTO t1 VALUES(2); |
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67 | ROLLBACK; |
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68 | SELECT * FROM t1; |
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69 | } |
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70 | } {1} |
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71 | |||
72 | # Test cases to verify that we can move from any journal_mode |
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73 | # to any other, as long as we are not in a transaction. Verify |
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74 | # that we cannot change journal_mode while a transaction is active. |
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75 | # |
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76 | set all_journal_modes {delete persist truncate memory off} |
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77 | set cnt 0 |
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78 | foreach fromjmode $all_journal_modes { |
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79 | foreach tojmode $all_journal_modes { |
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80 | |||
81 | # Skip the no-change cases |
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82 | if {$fromjmode==$tojmode} continue |
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83 | incr cnt |
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84 | |||
85 | # Start with a fresh database connection an empty database file. |
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86 | # |
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87 | db close |
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88 | file delete -force test.db test.db-journal |
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89 | sqlite3 db test.db |
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90 | |||
91 | # Initialize the journal mode. |
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92 | # |
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93 | do_test jrnlmode3-3.$cnt.1-($fromjmode-to-$tojmode) { |
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94 | db eval "PRAGMA journal_mode = $fromjmode;" |
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95 | } $fromjmode |
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96 | |||
97 | # Verify that the initial journal mode takes. |
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98 | # |
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99 | do_test jrnlmode3-3.$cnt.2 { |
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100 | db eval {PRAGMA main.journal_mode} |
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101 | } $fromjmode |
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102 | |||
103 | # Start a transaction and try to change the journal mode within |
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104 | # the transaction. This should fail. |
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105 | # |
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106 | do_test jrnlmode3-3.$cnt.3 { |
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107 | db eval { |
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108 | CREATE TABLE t1(x); |
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109 | BEGIN; |
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110 | INSERT INTO t1 VALUES($cnt); |
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111 | } |
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112 | db eval "PRAGMA journal_mode=$tojmode" |
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113 | } $fromjmode |
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114 | |||
115 | # Rollback the transaction. |
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116 | # |
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117 | do_test jrnlmode3-3.$cnt.4 { |
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118 | db eval { |
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119 | ROLLBACK; |
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120 | SELECT * FROM t1; |
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121 | } |
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122 | } {} |
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123 | |||
124 | # Now change the journal mode again. This time the new mode |
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125 | # should take. |
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126 | # |
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127 | do_test jrnlmode3-3.$cnt.5 { |
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128 | db eval "PRAGMA journal_mode=$tojmode" |
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129 | } $tojmode |
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130 | |||
131 | # Do a the transaction. Verify that the rollback occurred |
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132 | # if journal_mode!=OFF. |
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133 | # |
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134 | do_test jrnlmode3-3.$cnt.6 { |
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135 | db eval { |
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136 | DROP TABLE IF EXISTS t1; |
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137 | CREATE TABLE t1(x); |
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138 | BEGIN; |
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139 | INSERT INTO t1 VALUES(1); |
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140 | } |
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141 | db eval ROLLBACK |
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142 | db eval { |
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143 | SELECT * FROM t1; |
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144 | } |
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145 | } {} |
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146 | } |
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147 | } |
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148 | |||
149 | finish_test |