77 lines
2.0 KiB
Plaintext
77 lines
2.0 KiB
Plaintext
# 2022-01-20
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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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#
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# This file implements tests for sqlite3_vtab_rhs_value() interface.
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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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set testprefix vtabrhs1
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ifcapable !vtab {
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finish_test
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return
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}
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load_static_extension db qpvtab
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# EVIDENCE-OF: R-60223-49197 When the sqlite3_vtab_rhs_value(P,J,V)
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# interface is invoked from within the xBestIndex method of a virtual
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# table implementation, with P being a copy of the sqlite3_index_info
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# object pointer passed into xBestIndex and J being a 0-based index into
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# P->aConstraint[], then this routine attempts to set *V to the value
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# of the right-hand operand of that constraint if the right-hand operand
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# is known.
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#
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do_execsql_test 1.1 {
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SELECT rhs FROM qpvtab
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WHERE cn='a'
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AND a=12345
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} {12345}
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do_execsql_test 1.2 {
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SELECT rhs FROM qpvtab
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WHERE cn='a'
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AND a<>4.5
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} {4.5}
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do_execsql_test 1.3 {
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SELECT rhs FROM qpvtab
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WHERE cn='a'
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AND 'quokka' < a
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} {'quokka'}
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do_execsql_test 1.4 {
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SELECT rhs FROM qpvtab
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WHERE cn='a'
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AND a IS NULL
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} {{}}
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do_execsql_test 1.5 {
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SELECT rhs FROM qpvtab
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WHERE cn='a'
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AND a GLOB x'0123'
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} {x'0123'}
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# EVIDENCE-OF: R-37799-62852 If the right-hand operand is not known,
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# then *V is set to a NULL pointer.
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#
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do_execsql_test 2.1 {
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SELECT typeof(rhs) FROM qpvtab WHERE cn='a' AND a=format('abc');
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} {null}
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do_execsql_test 2.2 {
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SELECT typeof(rhs) FROM qpvtab WHERE cn='a' AND a=?2
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} {null}
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# EVIDENCE-OF: R-14553-25174 When xBestIndex returns, the sqlite3_value
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# object returned by sqlite3_vtab_rhs_value() is automatically
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# deallocated.
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#
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# Where this not the case, the following "finish_test" statement would
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# report a memory leak.
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#
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finish_test
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