wasCSharpSQLite – Blame information for rev 1
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1 | office | 1 | # 2006 January 02 |
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 implements regression tests for SQLite library. The |
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12 | # focus of this script is descending indices. |
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13 | # |
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14 | # $Id: descidx3.test,v 1.6 2008/03/19 00:21:31 drh Exp $ |
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15 | # |
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16 | |||
17 | set testdir [file dirname $argv0] |
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18 | source $testdir/tester.tcl |
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19 | |||
20 | # Do not use a codec for tests in this file, as the database file is |
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21 | # manipulated directly using tcl scripts (using the [hexio_write] command). |
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22 | # |
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23 | do_not_use_codec |
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24 | |||
25 | ifcapable !bloblit { |
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26 | finish_test |
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27 | return |
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28 | } |
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29 | db eval {PRAGMA legacy_file_format=OFF} |
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30 | |||
31 | # This procedure sets the value of the file-format in file 'test.db' |
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32 | # to $newval. Also, the schema cookie is incremented. |
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33 | # |
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34 | proc set_file_format {newval} { |
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35 | hexio_write test.db 44 [hexio_render_int32 $newval] |
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36 | set schemacookie [hexio_get_int [hexio_read test.db 40 4]] |
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37 | incr schemacookie |
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38 | hexio_write test.db 40 [hexio_render_int32 $schemacookie] |
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39 | return {} |
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40 | } |
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41 | |||
42 | # This procedure returns the value of the file-format in file 'test.db'. |
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43 | # |
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44 | proc get_file_format {{fname test.db}} { |
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45 | return [hexio_get_int [hexio_read $fname 44 4]] |
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46 | } |
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47 | |||
48 | # Verify that the file format starts as 4. |
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49 | # |
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50 | do_test descidx3-1.1 { |
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51 | execsql { |
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52 | CREATE TABLE t1(i INTEGER PRIMARY KEY,a,b,c,d); |
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53 | CREATE INDEX t1i1 ON t1(a DESC, b ASC, c DESC); |
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54 | CREATE INDEX t1i2 ON t1(b DESC, c ASC, d DESC); |
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55 | } |
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56 | get_file_format |
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57 | } {4} |
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58 | |||
59 | # Put some information in the table and verify that the descending |
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60 | # index actually works. |
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61 | # |
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62 | do_test descidx3-2.1 { |
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63 | execsql { |
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64 | INSERT INTO t1 VALUES(1, NULL, NULL, NULL, NULL); |
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65 | INSERT INTO t1 VALUES(2, 2, 2, 2, 2); |
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66 | INSERT INTO t1 VALUES(3, 3, 3, 3, 3); |
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67 | INSERT INTO t1 VALUES(4, 2.5, 2.5, 2.5, 2.5); |
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68 | INSERT INTO t1 VALUES(5, -5, -5, -5, -5); |
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69 | INSERT INTO t1 VALUES(6, 'six', 'six', 'six', 'six'); |
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70 | INSERT INTO t1 VALUES(7, x'77', x'77', x'77', x'77'); |
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71 | INSERT INTO t1 VALUES(8, 'eight', 'eight', 'eight', 'eight'); |
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72 | INSERT INTO t1 VALUES(9, x'7979', x'7979', x'7979', x'7979'); |
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73 | SELECT count(*) FROM t1; |
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74 | } |
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75 | } 9 |
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76 | do_test descidx3-2.2 { |
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77 | execsql { |
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78 | SELECT i FROM t1 ORDER BY a; |
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79 | } |
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80 | } {1 5 2 4 3 8 6 7 9} |
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81 | do_test descidx3-2.3 { |
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82 | execsql { |
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83 | SELECT i FROM t1 ORDER BY a DESC; |
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84 | } |
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85 | } {9 7 6 8 3 4 2 5 1} |
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86 | |||
87 | # The "natural" order for the index is decreasing |
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88 | do_test descidx3-2.4 { |
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89 | execsql { |
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90 | SELECT i FROM t1 WHERE a<=x'7979'; |
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91 | } |
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92 | } {9 7 6 8 3 4 2 5} |
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93 | do_test descidx3-2.5 { |
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94 | execsql { |
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95 | SELECT i FROM t1 WHERE a>-99; |
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96 | } |
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97 | } {9 7 6 8 3 4 2 5} |
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98 | |||
99 | # Even when all values of t1.a are the same, sorting by A returns |
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100 | # the rows in reverse order because this the natural order of the |
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101 | # index. |
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102 | # |
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103 | do_test descidx3-3.1 { |
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104 | execsql { |
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105 | UPDATE t1 SET a=1; |
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106 | SELECT i FROM t1 ORDER BY a; |
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107 | } |
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108 | } {9 7 6 8 3 4 2 5 1} |
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109 | do_test descidx3-3.2 { |
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110 | execsql { |
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111 | SELECT i FROM t1 WHERE a=1 AND b>0 AND b<'zzz' |
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112 | } |
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113 | } {2 4 3 8 6} |
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114 | do_test descidx3-3.3 { |
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115 | execsql { |
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116 | SELECT i FROM t1 WHERE b>0 AND b<'zzz' |
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117 | } |
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118 | } {6 8 3 4 2} |
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119 | do_test descidx3-3.4 { |
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120 | execsql { |
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121 | SELECT i FROM t1 WHERE a=1 AND b>-9999 AND b<x'ffffffff' |
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122 | } |
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123 | } {5 2 4 3 8 6 7 9} |
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124 | do_test descidx3-3.5 { |
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125 | execsql { |
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126 | SELECT i FROM t1 WHERE b>-9999 AND b<x'ffffffff' |
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127 | } |
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128 | } {9 7 6 8 3 4 2 5} |
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129 | |||
130 | ifcapable subquery { |
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131 | # If the subquery capability is not compiled in to the binary, then |
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132 | # the IN(...) operator is not available. Hence these tests cannot be |
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133 | # run. |
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134 | do_test descidx3-4.1 { |
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135 | execsql { |
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136 | UPDATE t1 SET a=2 WHERE i<6; |
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137 | SELECT i FROM t1 WHERE a IN (1,2) AND b>0 AND b<'zzz'; |
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138 | } |
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139 | } {8 6 2 4 3} |
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140 | do_test descidx3-4.2 { |
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141 | execsql { |
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142 | UPDATE t1 SET a=1; |
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143 | SELECT i FROM t1 WHERE a IN (1,2) AND b>0 AND b<'zzz'; |
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144 | } |
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145 | } {2 4 3 8 6} |
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146 | do_test descidx3-4.3 { |
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147 | execsql { |
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148 | UPDATE t1 SET b=2; |
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149 | SELECT i FROM t1 WHERE a IN (1,2) AND b>0 AND b<'zzz'; |
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150 | } |
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151 | } {9 7 6 8 3 4 2 5 1} |
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152 | } |
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153 | |||
154 | finish_test |