wasCSharpSQLite – Blame information for rev 7
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1 | office | 1 | # 2008 July 11 |
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. |
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12 | # |
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13 | # This file experiments with recursion using the "test_eval()" SQL function |
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14 | # in order to make sure that SQLite is reentrant. |
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15 | # |
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16 | # $Id: eval.test,v 1.2 2008/10/13 10:37:50 danielk1977 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 | # Create a table to work with. |
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22 | # |
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23 | do_test eval-1.1 { |
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24 | execsql { |
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25 | CREATE TABLE t1(x INTEGER PRIMARY KEY); |
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26 | INSERT INTO t1 VALUES(1); |
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27 | INSERT INTO t1 VALUES(2); |
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28 | INSERT INTO t1 SELECT x+2 FROM t1; |
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29 | INSERT INTO t1 SELECT x+4 FROM t1; |
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30 | INSERT INTO t1 SELECT x+8 FROM t1; |
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31 | INSERT INTO t1 SELECT x+16 FROM t1; |
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32 | INSERT INTO t1 SELECT x+32 FROM t1; |
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33 | INSERT INTO t1 SELECT x+64 FROM t1; |
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34 | INSERT INTO t1 SELECT x+128 FROM t1; |
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35 | INSERT INTO t1 SELECT x+256 FROM t1; |
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36 | SELECT count(*), max(x) FROM t1; |
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37 | } |
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38 | } {512 512} |
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39 | do_test eval-1.2 { |
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40 | execsql { |
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41 | SELECT x, test_eval('SELECT max(x) FROM t1 WHERE x<' || x) FROM t1 LIMIT 5 |
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42 | } |
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43 | } {1 {} 2 1 3 2 4 3 5 4} |
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44 | |||
45 | # Delete a row out from under a read cursor in the middle of |
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46 | # collecting the arguments for a single row in a result set. |
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47 | # Verify that subsequent rows come out as NULL. |
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48 | # |
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49 | do_test eval-2.1 { |
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50 | execsql { |
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51 | CREATE TABLE t2(x,y); |
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52 | INSERT INTO t2 SELECT x, x+1 FROM t1 WHERE x<5; |
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53 | SELECT x, test_eval('DELETE FROM t2 WHERE x='||x), y FROM t2; |
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54 | } |
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55 | } {1 {} {} 2 {} {} 3 {} {} 4 {} {}} |
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56 | do_test eval-2.2 { |
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57 | execsql { |
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58 | SELECT * FROM t2 |
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59 | } |
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60 | } {} |
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61 | |||
62 | # Modify a row while it is being read. |
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63 | # |
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64 | do_test eval-3.1 { |
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65 | execsql { |
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66 | INSERT INTO t2 SELECT x, x+1 FROM t1 WHERE x<5; |
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67 | SELECT x, test_eval('UPDATE t2 SET y=y+100 WHERE x='||x), y FROM t2; |
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68 | } |
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69 | } {1 {} 102 2 {} 103 3 {} 104 4 {} 105} |
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70 | |||
71 | do_test eval-4.1 { |
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72 | execsql { SELECT test_eval('SELECT "abcdefghij"') } |
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73 | } {abcdefghij} |
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74 | |||
75 | finish_test |