author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 17 Sep 2010 08:39:56 +0300 | |
changeset 49 | 7521e5afd3df |
parent 0 | 08ec8eefde2f |
permissions | -rw-r--r-- |
0
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# 2007 May 10 |
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# |
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# The author disclaims copyright to this source code. In place of |
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# a legal notice, here is a blessing: |
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# |
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# May you do good and not evil. |
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# May you find forgiveness for yourself and forgive others. |
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# May you share freely, never taking more than you give. |
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# |
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#*********************************************************************** |
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# This file implements regression tests for SQLite library. The |
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# focus of this file is generating semi-random strings of SQL |
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# (a.k.a. "fuzz") and sending it into the parser to try to |
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# generate errors. |
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# |
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# The tests in this file are really about testing fuzzily generated |
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# SQL parse-trees. The majority of the fuzzily generated SQL is |
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# valid as far as the parser is concerned. |
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# |
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# The most complicated trees are for SELECT statements. |
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# |
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# $Id: fuzz.test,v 1.14 2007/05/30 10:36:47 danielk1977 Exp $ |
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|
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set testdir [file dirname $argv0] |
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source $testdir/tester.tcl |
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|
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set ::REPEATS 5000 |
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|
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# If running quick.test, don't do so many iterations. |
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if {[info exists ::ISQUICK]} { |
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if {$::ISQUICK} { set ::REPEATS 20 } |
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} |
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|
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source $testdir/fuzz_common.tcl |
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|
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#---------------------------------------------------------------- |
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# These tests caused errors that were first caught by the tests |
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# in this file. They are still here. |
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do_test fuzz-1.1 { |
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execsql { |
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SELECT 'abc' LIKE X'ABCD'; |
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} |
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} {0} |
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do_test fuzz-1.2 { |
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execsql { |
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SELECT 'abc' LIKE zeroblob(10); |
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} |
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} {0} |
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do_test fuzz-1.3 { |
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execsql { |
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SELECT zeroblob(10) LIKE 'abc'; |
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} |
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} {0} |
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do_test fuzz-1.4 { |
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execsql { |
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SELECT (- -21) % NOT (456 LIKE zeroblob(10)); |
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} |
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} {0} |
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do_test fuzz-1.5 { |
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execsql { |
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SELECT (SELECT ( |
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SELECT (SELECT -2147483648) FROM (SELECT 1) ORDER BY 1 |
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)) |
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} |
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} {-2147483648} |
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do_test fuzz-1.6 { |
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execsql { |
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SELECT 'abc', zeroblob(1) FROM (SELECT 1) ORDER BY 1 |
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} |
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} [execsql {SELECT 'abc', zeroblob(1)}] |
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do_test fuzz-1.7 { |
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execsql { |
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SELECT ( SELECT zeroblob(1000) FROM ( |
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SELECT * FROM (SELECT 'first') ORDER BY NOT 'in') |
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) |
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} |
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} [execsql {SELECT zeroblob(1000)}] |
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do_test fuzz-1.8 { |
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# Problems with opcode OP_ToText (did not account for MEM_Zero). |
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# Also MemExpandBlob() was marking expanded blobs as nul-terminated. |
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# They are not. |
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execsql { |
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SELECT CAST(zeroblob(1000) AS text); |
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} |
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} {{}} |
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do_test fuzz-1.9 { |
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# This was causing a NULL pointer dereference of Expr.pList. |
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execsql { |
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SELECT 1 FROM (SELECT * FROM sqlite_master WHERE random()) |
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} |
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} {} |
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do_test fuzz-1.10 { |
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# Bug in calculation of Parse.ckOffset causing an assert() |
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# to fail. Probably harmless. |
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execsql { |
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SELECT coalesce(1, substr( 1, 2, length('in' IN (SELECT 1)))) |
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} |
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} {1} |
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104 |
do_test fuzz-1.11 { |
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105 |
# The literals (A, B, C, D) are not important, they are just used |
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# to make the EXPLAIN output easier to read. |
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107 |
# |
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108 |
# The problem here is that the EXISTS(...) expression leaves an |
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# extra value on the VDBE stack. This is confusing the parent and |
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# leads to an assert() failure when OP_Insert encounters an integer |
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# when it expects a record blob. |
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112 |
# |
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# Update: Any query with (LIMIT 0) was leaking stack. |
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114 |
# |
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115 |
execsql { |
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SELECT 'A' FROM (SELECT 'B') ORDER BY EXISTS ( |
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SELECT 'C' FROM (SELECT 'D' LIMIT 0) |
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118 |
) |
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119 |
} |
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120 |
} {A} |
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121 |
|
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122 |
do_test fuzz-1.12.1 { |
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# Create a table with a single row. |
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124 |
execsql { |
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CREATE TABLE abc(b); |
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INSERT INTO abc VALUES('ABCDE'); |
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127 |
} |
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128 |
|
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# The following query was crashing. The later subquery (in the FROM) |
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# clause was flattened into the parent, but the code was not repairng |
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# the "b" reference in the other sub-query. When the query was executed, |
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# that "b" refered to a non-existant vdbe table-cursor. |
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133 |
# |
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134 |
execsql { |
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SELECT 1 IN ( SELECT b UNION SELECT 1 ) FROM (SELECT b FROM abc); |
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136 |
} |
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} {1} |
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138 |
do_test fuzz-1.12.2 { |
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# Clean up after the previous query. |
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140 |
execsql { |
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DROP TABLE abc; |
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142 |
} |
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143 |
} {} |
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144 |
|
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145 |
|
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do_test fuzz-1.13 { |
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# The problem here was that when there were more expressions in |
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# the ORDER BY list than the result-set list. The temporary b-tree |
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# used for sorting was being misconfigured in this case. |
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150 |
# |
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151 |
execsql { |
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SELECT 'abcd' UNION SELECT 'efgh' ORDER BY 1 ASC, 1 ASC; |
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153 |
} |
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} {abcd efgh} |
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155 |
|
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do_test fuzz-1.14.1 { |
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157 |
execsql { |
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CREATE TABLE abc(a, b, c); |
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INSERT INTO abc VALUES(123, 456, 789); |
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160 |
} |
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161 |
|
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# The [a] reference in the sub-select was causing a problem. Because |
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# the internal walkSelectExpr() function was not considering compound |
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# SELECT operators. |
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165 |
execsql { |
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SELECT 1 FROM abc |
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GROUP BY c HAVING EXISTS (SELECT a UNION SELECT 123); |
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168 |
} |
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169 |
} {1} |
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170 |
do_test fuzz-1.14.2 { |
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171 |
execsql { |
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DROP TABLE abc; |
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173 |
} |
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174 |
} {} |
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175 |
|
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176 |
#---------------------------------------------------------------- |
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# Test some fuzzily generated expressions. |
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178 |
# |
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do_fuzzy_test fuzz-2 -template { SELECT [Expr] } |
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180 |
|
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181 |
do_test fuzz-3.1 { |
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182 |
execsql { |
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183 |
CREATE TABLE abc(a, b, c); |
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184 |
CREATE TABLE def(a, b, c); |
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CREATE TABLE ghi(a, b, c); |
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186 |
} |
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} {} |
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set ::TableList [list abc def ghi] |
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189 |
|
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190 |
#---------------------------------------------------------------- |
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# Test some fuzzily generated SELECT statements. |
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192 |
# |
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193 |
do_fuzzy_test fuzz-3.2 -template {[Select]} |
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194 |
|
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195 |
#---------------------------------------------------------------- |
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# Insert a small amount of data into the database and then run |
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# some more generated SELECT statements. |
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198 |
# |
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199 |
do_test fuzz-4.1 { |
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execsql { |
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201 |
INSERT INTO abc VALUES(1, 2, 3); |
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INSERT INTO abc VALUES(4, 5, 6); |
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INSERT INTO abc VALUES(7, 8, 9); |
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204 |
INSERT INTO def VALUES(1, 2, 3); |
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INSERT INTO def VALUES(4, 5, 6); |
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INSERT INTO def VALUES(7, 8, 9); |
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INSERT INTO ghi VALUES(1, 2, 3); |
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INSERT INTO ghi VALUES(4, 5, 6); |
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INSERT INTO ghi VALUES(7, 8, 9); |
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CREATE INDEX abc_i ON abc(a, b, c); |
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CREATE INDEX def_i ON def(c, a, b); |
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CREATE INDEX ghi_i ON ghi(b, c, a); |
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} |
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} {} |
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do_fuzzy_test fuzz-4.2 -template {[Select]} |
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|
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#---------------------------------------------------------------- |
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# Test some fuzzy INSERT statements: |
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# |
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do_test fuzz-5.1 {execsql BEGIN} {} |
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do_fuzzy_test fuzz-5.2 -template {[Insert]} -errorlist table |
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integrity_check fuzz-5.2.integrity |
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do_test fuzz-5.3 {execsql COMMIT} {} |
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integrity_check fuzz-5.4.integrity |
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|
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#---------------------------------------------------------------- |
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# Now that there is data in the database, run some more SELECT |
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# statements |
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# |
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set ::ColumnList [list a b c] |
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set E {{no such col} {ambiguous column name}} |
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do_fuzzy_test fuzz-6.1 -template {[Select]} -errorlist $E |
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|
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#---------------------------------------------------------------- |
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# Run some SELECTs, INSERTs, UPDATEs and DELETEs in a transaction. |
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# |
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set E {{no such col} {ambiguous column name} {table}} |
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do_test fuzz-7.1 {execsql BEGIN} {} |
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do_fuzzy_test fuzz-7.2 -template {[Statement]} -errorlist $E |
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integrity_check fuzz-7.3.integrity |
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do_test fuzz-7.4 {execsql COMMIT} {} |
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integrity_check fuzz-7.5.integrity |
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|
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#---------------------------------------------------------------- |
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# Many CREATE and DROP TABLE statements: |
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# |
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set E [list table duplicate {no such col} {ambiguous column name} {use DROP}] |
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do_fuzzy_test fuzz-8.1 -template {[CreateOrDropTableOrView]} -errorlist $E |
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|
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close $::log |
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finish_test |