wasCSharpSQLite – Blame information for rev 7
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1 | office | 1 | # 2008 August 28 |
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 | # This file implements regression tests for SQLite library. The |
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13 | # focus of this script is correct code generation of aliased result-set |
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14 | # values. See ticket #3343. |
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15 | # |
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16 | # $Id: alias.test,v 1.3 2009/04/23 13:22:44 drh Exp $ |
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17 | # |
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18 | set testdir [file dirname $argv0] |
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19 | source $testdir/tester.tcl |
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20 | |||
21 | # Aliases are currently evaluated twice. We might try to change this |
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22 | # in the future. But not now. |
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23 | return |
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24 | |||
25 | # A procedure to return a sequence of increasing integers. |
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26 | # |
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27 | namespace eval ::seq { |
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28 | variable counter 0 |
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29 | proc value {args} { |
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30 | variable counter |
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31 | incr counter |
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32 | return $counter |
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33 | } |
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34 | proc reset {} { |
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35 | variable counter |
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36 | set counter 0 |
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37 | } |
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38 | } |
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39 | |||
40 | |||
41 | do_test alias-1.1 { |
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42 | db function sequence ::seq::value |
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43 | db eval { |
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44 | CREATE TABLE t1(x); |
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45 | INSERT INTO t1 VALUES(9); |
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46 | INSERT INTO t1 VALUES(8); |
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47 | INSERT INTO t1 VALUES(7); |
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48 | SELECT x, sequence() FROM t1; |
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49 | } |
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50 | } {9 1 8 2 7 3} |
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51 | do_test alias-1.2 { |
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52 | ::seq::reset |
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53 | db eval { |
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54 | SELECT x, sequence() AS y FROM t1 WHERE y>0 |
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55 | } |
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56 | } {9 1 8 2 7 3} |
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57 | do_test alias-1.3 { |
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58 | ::seq::reset |
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59 | db eval { |
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60 | SELECT x, sequence() AS y FROM t1 WHERE y>0 AND y<99 |
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61 | } |
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62 | } {9 1 8 2 7 3} |
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63 | do_test alias-1.4 { |
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64 | ::seq::reset |
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65 | db eval { |
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66 | SELECT x, sequence() AS y FROM t1 WHERE y>0 AND y<99 AND y!=55 |
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67 | } |
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68 | } {9 1 8 2 7 3} |
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69 | do_test alias-1.5 { |
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70 | ::seq::reset |
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71 | db eval { |
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72 | SELECT x, sequence() AS y FROM t1 |
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73 | WHERE y>0 AND y<99 AND y!=55 AND y NOT IN (56,57,58) |
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74 | AND y NOT LIKE 'abc%' AND y%10==2 |
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75 | } |
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76 | } {8 2} |
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77 | do_test alias-1.6 { |
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78 | ::seq::reset |
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79 | db eval { |
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80 | SELECT x, sequence() AS y FROM t1 WHERE y BETWEEN 0 AND 99 |
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81 | } |
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82 | } {9 1 8 2 7 3} |
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83 | #do_test alias-1.7 { |
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84 | # ::seq::reset |
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85 | # db eval { |
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86 | # SELECT x, sequence() AS y FROM t1 WHERE y IN (55,66,3) |
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87 | # } |
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88 | #} {7 3} |
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89 | do_test alias-1.8 { |
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90 | ::seq::reset |
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91 | db eval { |
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92 | SELECT x, 1-sequence() AS y FROM t1 ORDER BY y |
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93 | } |
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94 | } {7 -2 8 -1 9 0} |
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95 | do_test alias-1.9 { |
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96 | ::seq::reset |
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97 | db eval { |
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98 | SELECT x, sequence() AS y FROM t1 ORDER BY -y |
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99 | } |
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100 | } {7 3 8 2 9 1} |
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101 | do_test alias-1.10 { |
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102 | ::seq::reset |
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103 | db eval { |
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104 | SELECT x, sequence() AS y FROM t1 ORDER BY x%2, y |
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105 | } |
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106 | } {8 2 9 1 7 3} |
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107 | |||
108 | unset -nocomplain random_int_list |
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109 | set random_int_list [db eval { |
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110 | SELECT random()&2147483647 AS r FROM t1, t1, t1, t1 ORDER BY r |
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111 | }] |
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112 | do_test alias-1.11 { |
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113 | lsort -integer $::random_int_list |
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114 | } $random_int_list |
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115 | |||
116 | |||
117 | do_test alias-2.1 { |
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118 | db eval { |
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119 | SELECT 4 UNION SELECT 1 ORDER BY 1 |
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120 | } |
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121 | } {1 4} |
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122 | do_test alias-2.2 { |
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123 | db eval { |
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124 | SELECT 4 UNION SELECT 1 UNION SELECT 9 ORDER BY 1 |
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125 | } |
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126 | } {1 4 9} |
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127 | |||
128 | if 0 { |
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129 | # Aliases in the GROUP BY clause cause the expression to be evaluated |
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130 | # twice in the current implementation. This might change in the future. |
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131 | # |
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132 | do_test alias-3.1 { |
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133 | ::seq::reset |
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134 | db eval { |
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135 | SELECT sequence(*) AS y, count(*) AS z FROM t1 GROUP BY y ORDER BY z, y |
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136 | } |
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137 | } {1 1 2 1 3 1} |
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138 | } |
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139 | |||
140 | finish_test |