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1 # 2004 December 07 |
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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 implements tests to make sure expression of an INSERT |
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14 # and UPDATE statement are only evaluated once. See ticket #980. |
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15 # If an expression uses a function that has side-effects or which |
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16 # is not deterministic (ex: random()) then we want to make sure |
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17 # that the same evaluation occurs for the actual INSERT/UPDATE and |
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18 # for the NEW.* fields of any triggers that fire. |
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19 # |
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20 # $Id: trigger6.test,v 1.2 2005/05/05 11:04:50 drh Exp $ |
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21 |
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22 set testdir [file dirname $argv0] |
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23 source $testdir/tester.tcl |
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24 ifcapable {!trigger} { |
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25 finish_test |
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26 return |
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27 } |
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28 |
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29 do_test trigger6-1.1 { |
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30 execsql { |
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31 CREATE TABLE t1(x, y); |
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32 CREATE TABLE log(a, b, c); |
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33 CREATE TRIGGER r1 BEFORE INSERT ON t1 BEGIN |
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34 INSERT INTO log VALUES(1, new.x, new.y); |
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35 END; |
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36 CREATE TRIGGER r2 BEFORE UPDATE ON t1 BEGIN |
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37 INSERT INTO log VALUES(2, new.x, new.y); |
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38 END; |
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39 } |
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40 set ::trigger6_cnt 0 |
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41 proc trigger6_counter {args} { |
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42 incr ::trigger6_cnt |
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43 return $::trigger6_cnt |
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44 } |
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45 db function counter trigger6_counter |
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46 execsql { |
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47 INSERT INTO t1 VALUES(1,counter()); |
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48 SELECT * FROM t1; |
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49 } |
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50 } {1 1} |
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51 do_test trigger6-1.2 { |
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52 execsql { |
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53 SELECT * FROM log; |
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54 } |
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55 } {1 1 1} |
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56 do_test trigger6-1.3 { |
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57 execsql { |
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58 DELETE FROM t1; |
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59 DELETE FROM log; |
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60 INSERT INTO t1 VALUES(2,counter(2,3)+4); |
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61 SELECT * FROM t1; |
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62 } |
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63 } {2 6} |
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64 do_test trigger6-1.4 { |
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65 execsql { |
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66 SELECT * FROM log; |
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67 } |
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68 } {1 2 6} |
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69 do_test trigger6-1.5 { |
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70 execsql { |
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71 DELETE FROM log; |
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72 UPDATE t1 SET y=counter(5); |
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73 SELECT * FROM t1; |
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74 } |
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75 } {2 3} |
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76 do_test trigger6-1.6 { |
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77 execsql { |
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78 SELECT * FROM log; |
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79 } |
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80 } {2 2 3} |
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81 |
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82 finish_test |