gitlab.com/CoiaPrant/sqlite3@v1.19.1/testdata/tcl/vtabrhs1.test (about) 1 # 2022-01-20 2 # 3 # The author disclaims copyright to this source code. In place of 4 # a legal notice, here is a blessing: 5 # 6 # May you do good and not evil. 7 # May you find forgiveness for yourself and forgive others. 8 # May you share freely, never taking more than you give. 9 # 10 #*********************************************************************** 11 # 12 # This file implements tests for sqlite3_vtab_rhs_value() interface. 13 # 14 15 set testdir [file dirname $argv0] 16 source $testdir/tester.tcl 17 set testprefix vtabrhs1 18 19 ifcapable !vtab { 20 finish_test 21 return 22 } 23 load_static_extension db qpvtab 24 25 # EVIDENCE-OF: R-60223-49197 When the sqlite3_vtab_rhs_value(P,J,V) 26 # interface is invoked from within the xBestIndex method of a virtual 27 # table implementation, with P being a copy of the sqlite3_index_info 28 # object pointer passed into xBestIndex and J being a 0-based index into 29 # P->aConstraint[], then this routine attempts to set *V to the value 30 # of the right-hand operand of that constraint if the right-hand operand 31 # is known. 32 # 33 do_execsql_test 1.1 { 34 SELECT rhs FROM qpvtab 35 WHERE cn='a' 36 AND a=12345 37 } {12345} 38 do_execsql_test 1.2 { 39 SELECT rhs FROM qpvtab 40 WHERE cn='a' 41 AND a<>4.5 42 } {4.5} 43 do_execsql_test 1.3 { 44 SELECT rhs FROM qpvtab 45 WHERE cn='a' 46 AND 'quokka' < a 47 } {'quokka'} 48 do_execsql_test 1.4 { 49 SELECT rhs FROM qpvtab 50 WHERE cn='a' 51 AND a IS NULL 52 } {{}} 53 do_execsql_test 1.5 { 54 SELECT rhs FROM qpvtab 55 WHERE cn='a' 56 AND a GLOB x'0123' 57 } {x'0123'} 58 59 # EVIDENCE-OF: R-37799-62852 If the right-hand operand is not known, 60 # then *V is set to a NULL pointer. 61 # 62 do_execsql_test 2.1 { 63 SELECT typeof(rhs) FROM qpvtab WHERE cn='a' AND a=format('abc'); 64 } {null} 65 do_execsql_test 2.2 { 66 SELECT typeof(rhs) FROM qpvtab WHERE cn='a' AND a=?2 67 } {null} 68 69 # EVIDENCE-OF: R-14553-25174 When xBestIndex returns, the sqlite3_value 70 # object returned by sqlite3_vtab_rhs_value() is automatically 71 # deallocated. 72 # 73 # Where this not the case, the following "finish_test" statement would 74 # report a memory leak. 75 # 76 finish_test