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282 lines
7.1 KiB
Plaintext
282 lines
7.1 KiB
Plaintext
# 2012 October 24
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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 testing the built-in INSTR() functions.
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#
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# EVIDENCE-OF: R-27549-59611 The instr(X,Y) function finds the first
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# occurrence of string Y within string X and returns the number of prior
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# characters plus 1, or 0 if Y is nowhere found within X.
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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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# Create a table to work with.
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#
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do_test instr-1.1 {
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db eval {SELECT instr('abcdefg','a');}
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} {1}
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do_test instr-1.2 {
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db eval {SELECT instr('abcdefg','b');}
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} {2}
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do_test instr-1.3 {
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db eval {SELECT instr('abcdefg','c');}
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} {3}
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do_test instr-1.4 {
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db eval {SELECT instr('abcdefg','d');}
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} {4}
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do_test instr-1.5 {
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db eval {SELECT instr('abcdefg','e');}
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} {5}
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do_test instr-1.6 {
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db eval {SELECT instr('abcdefg','f');}
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} {6}
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do_test instr-1.7 {
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db eval {SELECT instr('abcdefg','g');}
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} {7}
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do_test instr-1.8 {
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db eval {SELECT instr('abcdefg','h');}
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} {0}
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do_test instr-1.9 {
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db eval {SELECT instr('abcdefg','abcdefg');}
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} {1}
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do_test instr-1.10 {
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db eval {SELECT instr('abcdefg','abcdefgh');}
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} {0}
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do_test instr-1.11 {
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db eval {SELECT instr('abcdefg','bcdefg');}
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} {2}
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do_test instr-1.12 {
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db eval {SELECT instr('abcdefg','bcdefgh');}
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} {0}
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do_test instr-1.13 {
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db eval {SELECT instr('abcdefg','cdefg');}
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} {3}
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do_test instr-1.14 {
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db eval {SELECT instr('abcdefg','cdefgh');}
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} {0}
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do_test instr-1.15 {
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db eval {SELECT instr('abcdefg','defg');}
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} {4}
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do_test instr-1.16 {
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db eval {SELECT instr('abcdefg','defgh');}
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} {0}
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do_test instr-1.17 {
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db eval {SELECT instr('abcdefg','efg');}
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} {5}
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do_test instr-1.18 {
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db eval {SELECT instr('abcdefg','efgh');}
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} {0}
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do_test instr-1.19 {
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db eval {SELECT instr('abcdefg','fg');}
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} {6}
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do_test instr-1.20 {
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db eval {SELECT instr('abcdefg','fgh');}
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} {0}
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do_test instr-1.21 {
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db eval {SELECT coalesce(instr('abcdefg',NULL),'nil');}
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} {nil}
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do_test instr-1.22 {
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db eval {SELECT coalesce(instr(NULL,'x'),'nil');}
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} {nil}
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do_test instr-1.23 {
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db eval {SELECT instr(12345,34);}
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} {3}
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do_test instr-1.24 {
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db eval {SELECT instr(123456.78,34);}
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} {3}
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do_test instr-1.25 {
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db eval {SELECT instr(123456.78,x'3334');}
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} {3}
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do_test instr-1.26 {
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db eval {SELECT instr('äbcdefg','efg');}
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} {5}
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do_test instr-1.27 {
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db eval {SELECT instr('€xyzzy','xyz');}
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} {2}
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do_test instr-1.28 {
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db eval {SELECT instr('abc€xyzzy','xyz');}
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} {5}
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do_test instr-1.29 {
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db eval {SELECT instr('abc€xyzzy','€xyz');}
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} {4}
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do_test instr-1.30 {
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db eval {SELECT instr('abc€xyzzy','c€xyz');}
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} {3}
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do_test instr-1.31 {
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db eval {SELECT instr(x'0102030405',x'01');}
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} {1}
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do_test instr-1.32 {
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db eval {SELECT instr(x'0102030405',x'02');}
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} {2}
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do_test instr-1.33 {
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db eval {SELECT instr(x'0102030405',x'03');}
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} {3}
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do_test instr-1.34 {
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db eval {SELECT instr(x'0102030405',x'04');}
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} {4}
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do_test instr-1.35 {
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db eval {SELECT instr(x'0102030405',x'05');}
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} {5}
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do_test instr-1.36 {
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db eval {SELECT instr(x'0102030405',x'06');}
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} {0}
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do_test instr-1.37 {
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db eval {SELECT instr(x'0102030405',x'0102030405');}
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} {1}
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do_test instr-1.38 {
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db eval {SELECT instr(x'0102030405',x'02030405');}
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} {2}
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do_test instr-1.39 {
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db eval {SELECT instr(x'0102030405',x'030405');}
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} {3}
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do_test instr-1.40 {
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db eval {SELECT instr(x'0102030405',x'0405');}
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} {4}
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do_test instr-1.41 {
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db eval {SELECT instr(x'0102030405',x'0506');}
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} {0}
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do_test instr-1.42 {
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db eval {SELECT instr(x'0102030405',x'');}
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} {1}
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do_test instr-1.43 {
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db eval {SELECT instr(x'',x'');}
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} {1}
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do_test instr-1.44 {
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db eval {SELECT instr('','');}
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} {1}
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do_test instr-1.45 {
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db eval {SELECT instr('abcdefg','');}
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} {1}
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unset -nocomplain longstr
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set longstr abcdefghijklmonpqrstuvwxyz
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append longstr $longstr
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append longstr $longstr
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append longstr $longstr
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append longstr $longstr
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append longstr $longstr
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append longstr $longstr
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append longstr $longstr
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append longstr $longstr
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append longstr $longstr
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append longstr $longstr
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append longstr $longstr
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append longstr $longstr
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# puts [string length $longstr]
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append longstr Xabcde
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do_test instr-1.46 {
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db eval {SELECT instr($longstr,'X');}
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} {106497}
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do_test instr-1.47 {
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db eval {SELECT instr($longstr,'Y');}
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} {0}
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do_test instr-1.48 {
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db eval {SELECT instr($longstr,'Xa');}
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} {106497}
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do_test instr-1.49 {
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db eval {SELECT instr($longstr,'zXa');}
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} {106496}
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set longstr [string map {a ä} $longstr]
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do_test instr-1.50 {
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db eval {SELECT instr($longstr,'X');}
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} {106497}
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do_test instr-1.51 {
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db eval {SELECT instr($longstr,'Y');}
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} {0}
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do_test instr-1.52 {
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db eval {SELECT instr($longstr,'Xä');}
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} {106497}
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do_test instr-1.53 {
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db eval {SELECT instr($longstr,'zXä');}
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} {106496}
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do_test instr-1.54 {
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db eval {SELECT instr(x'78c3a4e282ac79','x');}
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} {1}
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do_test instr-1.55 {
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db eval {SELECT instr(x'78c3a4e282ac79','y');}
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} {4}
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# EVIDENCE-OF: R-46421-32541 Or, if X and Y are both BLOBs, then
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# instr(X,Y) returns one more than the number bytes prior to the first
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# occurrence of Y, or 0 if Y does not occur anywhere within X.
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#
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do_test instr-1.56.1 {
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db eval {SELECT instr(x'78c3a4e282ac79',x'79');}
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} {7}
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do_test instr-1.56.2 {
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db eval {SELECT instr(x'78c3a4e282ac79',x'7a');}
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} {0}
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do_test instr-1.56.3 {
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db eval {SELECT instr(x'78c3a4e282ac79',x'78');}
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} {1}
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do_test instr-1.56.3 {
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db eval {SELECT instr(x'78c3a4e282ac79',x'a4');}
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} {3}
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# EVIDENCE-OF: R-17329-35644 If both arguments X and Y to instr(X,Y) are
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# non-NULL and are not BLOBs then both are interpreted as strings.
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#
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do_test instr-1.57.1 {
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db eval {SELECT instr('xä€y',x'79');}
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} {4}
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do_test instr-1.57.2 {
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db eval {SELECT instr('xä€y',x'a4');}
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} {0}
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do_test instr-1.57.3 {
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db eval {SELECT instr(x'78c3a4e282ac79','y');}
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} {4}
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# EVIDENCE-OF: R-14708-27487 If either X or Y are NULL in instr(X,Y)
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# then the result is NULL.
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#
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do_execsql_test instr-1.60 {
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SELECT coalesce(instr(NULL,'abc'), 999);
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} {999}
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do_execsql_test instr-1.61 {
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SELECT coalesce(instr('abc',NULL), 999);
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} {999}
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do_execsql_test instr-1.62 {
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SELECT coalesce(instr(NULL,NULL), 999);
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} {999}
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do_execsql_test instr-1.63 {
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SELECT instr(X'', 'abc')
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} 0
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do_execsql_test instr-1.64 {
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CREATE TABLE x1(a, b);
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INSERT INTO x1 VALUES(X'', 'abc');
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SELECT instr(a, b) FROM x1;
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} 0
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# 2019-09-16 ticket https://www.sqlite.org/src/info/587791f92620090e
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#
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do_execsql_test instr-2.0 {
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DROP TABLE IF EXISTS t0;
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CREATE TABLE t0(c0 PRIMARY KEY, c1);
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INSERT INTO t0(c0) VALUES (x'bb'), (0);
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SELECT COUNT(*) FROM t0 WHERE INSTR(x'aabb', t0.c0) ORDER BY t0.c0, t0.c1;
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} {1}
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do_execsql_test instr-2.1 {
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SELECT quote(c0) FROM t0 WHERE INSTR(x'aabb', t0.c0) ORDER BY t0.c0, t0.c1;
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} {X'BB'}
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do_execsql_test instr-2.2 {
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DROP TABLE IF EXISTS t1;
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CREATE TABLE t1(x);
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INSERT INTO t1(x) VALUES('text'),(x'bb');
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SELECT quote(x) FROM t1 WHERE instr(x'aabb',x);
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} {X'BB'}
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do_execsql_test instr-2.3 {
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SELECT quote(x) FROM t1 WHERE x>'zzz' AND instr(x'aabb',x);
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} {X'BB'}
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finish_test
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