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SQLite training in Houston TX on 2019-11-05 (details)
Part of the 2019 Tcl Conference

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Overview
Comment:Add evidence marks and additional test cases for the printf() SQL function.
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SHA1: 93121d3097a43997af3c0de65bd9bd7663845fa2
User & Date: drh 2013-12-17 16:32:56
References
2016-02-08
22:22 New ticket [d06a25c8] Incorrect result from a UNION with an ORDER BY. artifact: 46852019 user: drh
Context
2013-12-18
18:44
Remove an unnecessary column-cache flush operation. Add code to trace the column cache when compiled with SQLITE_DEBUG and using PRAGMA vdbe_addoptrace=ON. check-in: 58704ed1 user: drh tags: trunk
15:11
Show changes to the column cache when PRAGMA vdbe_addoptrace=ON is set. check-in: 4c6a659c user: drh tags: column-cache-debug
2013-12-17
16:32
Add evidence marks and additional test cases for the printf() SQL function. check-in: 93121d30 user: drh tags: trunk
16:10
Add the printf() SQL function. check-in: a1bb62f9 user: drh tags: trunk
Changes
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Changes to test/printf2.test.

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#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is testing the printf() SQL function.
#






set testdir [file dirname $argv0]
source $testdir/tester.tcl




do_execsql_test printf2-1.1 {
  SELECT printf();
} {{}}




do_execsql_test printf2-1.2 {
  SELECT printf('hello');
} {hello}
do_execsql_test printf2-1.3 {
  SELECT printf('%d,%d,%d',55,-11,3421);
} {55,-11,3421}
do_execsql_test printf2-1.4 {
................................................................................
} {314159}
do_execsql_test printf2-1.10 {
  SELECT printf('%lld',314159.2653);
} {314159}
do_execsql_test printf2-1.11 {
  SELECT printf('%lld%n',314159.2653,'hi');
} {314159}



do_execsql_test printf2-1.12 {
  SELECT printf('%.*z',5,'abcdefghijklmnop');
} {abcde}
do_execsql_test printf2-1.13 {
  SELECT printf('%c','abcdefghijklmnop');
} {a}





























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#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is testing the printf() SQL function.
#
#
# EVIDENCE-OF: R-63057-40065 The printf(FORMAT,...) SQL function works
# like the sqlite3_mprintf() C-language function and the printf()
# function from the standard C library.
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# EVIDENCE-OF: R-40086-60101 If the FORMAT argument is missing or NULL
# then the result is NULL.
#
do_execsql_test printf2-1.1 {


  SELECT quote(printf()), quote(printf(NULL,1,2,3));
} {NULL NULL}


do_execsql_test printf2-1.2 {
  SELECT printf('hello');
} {hello}
do_execsql_test printf2-1.3 {
  SELECT printf('%d,%d,%d',55,-11,3421);
} {55,-11,3421}
do_execsql_test printf2-1.4 {
................................................................................
} {314159}
do_execsql_test printf2-1.10 {
  SELECT printf('%lld',314159.2653);
} {314159}
do_execsql_test printf2-1.11 {
  SELECT printf('%lld%n',314159.2653,'hi');
} {314159}

# EVIDENCE-OF: R-20555-31089 The %z format is interchangable with %s.
#
do_execsql_test printf2-1.12 {
  SELECT printf('%.*z',5,'abcdefghijklmnop');
} {abcde}
do_execsql_test printf2-1.13 {
  SELECT printf('%c','abcdefghijklmnop');
} {a}

# EVIDENCE-OF: R-02347-27622 The %n format is silently ignored and does
# not consume an argument.
#
do_execsql_test printf2-2.1 {
  CREATE TABLE t1(a,b,c);
  INSERT INTO t1 VALUES(1,2,3);
  INSERT INTO t1 VALUES(-1,-2,-3);
  INSERT INTO t1 VALUES('abc','def','ghi');
  INSERT INTO t1 VALUES(1.5,2.25,3.125);
  SELECT printf('(%s)-%n-(%s)',a,b,c) FROM t1 ORDER BY rowid;
} {(1)--(2) (-1)--(-2) (abc)--(def) (1.5)--(2.25)}

# EVIDENCE-OF: R-56064-04001 The %p format is an alias for %X.
#
do_execsql_test printf2-2.2 {
  SELECT printf('%s=(%p)',a,a) FROM t1 ORDER BY a;
} {-1=(FFFFFFFFFFFFFFFF) 1=(1) 1.5=(1) abc=(0)}

# EVIDENCE-OF: R-29410-53018 If there are too few arguments in the
# argument list, missing arguments are assumed to have a NULL value,
# which is translated into 0 or 0.0 for numeric formats or an empty
# string for %s.
#
do_execsql_test printf2-2.3 {
  SELECT printf('%s=(%d/%g/%s)',a) FROM t1 ORDER BY a;
} {-1=(0/0/) 1=(0/0/) 1.5=(0/0/) abc=(0/0/)}


finish_test