326 lines
9.8 KiB
Plaintext
326 lines
9.8 KiB
Plaintext
# 2008 April 28
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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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# Ticket #3060
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#
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# Make sure IEEE floating point NaN values are handled properly.
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# SQLite should always convert NaN into NULL.
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#
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# Also verify that the decimal to IEEE754 binary conversion routines
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# correctly generate 0.0, +Inf, and -Inf as appropriate for numbers
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# out of range.
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#
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# $Id: nan.test,v 1.5 2008/09/18 11:30:13 danielk1977 Exp $
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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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# Do not use a codec for tests in this file, as the database file is
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# manipulated directly using tcl scripts (using the [hexio_write] command).
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#
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do_not_use_codec
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do_test nan-1.1.1 {
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db eval {
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PRAGMA auto_vacuum=OFF;
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PRAGMA page_size=1024;
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CREATE TABLE t1(x FLOAT);
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}
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set ::STMT [sqlite3_prepare db "INSERT INTO t1 VALUES(?)" -1 TAIL]
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sqlite3_bind_double $::STMT 1 NaN
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sqlite3_step $::STMT
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sqlite3_reset $::STMT
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db eval {SELECT x, typeof(x) FROM t1}
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} {{} null}
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if {$tcl_platform(platform) != "symbian"} {
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do_test nan-1.1.2 {
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sqlite3_bind_double $::STMT 1 +Inf
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sqlite3_step $::STMT
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sqlite3_reset $::STMT
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db eval {SELECT x, typeof(x) FROM t1}
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} {{} null inf real}
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do_test nan-1.1.3 {
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sqlite3_bind_double $::STMT 1 -Inf
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sqlite3_step $::STMT
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sqlite3_reset $::STMT
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db eval {SELECT x, typeof(x) FROM t1}
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} {{} null inf real -inf real}
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do_test nan-1.1.4 {
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sqlite3_bind_double $::STMT 1 -NaN
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sqlite3_step $::STMT
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sqlite3_reset $::STMT
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db eval {SELECT x, typeof(x) FROM t1}
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} {{} null inf real -inf real {} null}
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do_test nan-1.1.5 {
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sqlite3_bind_double $::STMT 1 NaN0
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sqlite3_step $::STMT
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sqlite3_reset $::STMT
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db eval {SELECT x, typeof(x) FROM t1}
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} {{} null inf real -inf real {} null {} null}
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do_test nan-1.1.5 {
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sqlite3_bind_double $::STMT 1 -NaN0
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sqlite3_step $::STMT
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sqlite3_reset $::STMT
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db eval {SELECT x, typeof(x) FROM t1}
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} {{} null inf real -inf real {} null {} null {} null}
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do_test nan-1.1.6 {
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db eval {
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UPDATE t1 SET x=x-x;
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SELECT x, typeof(x) FROM t1;
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}
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} {{} null {} null {} null {} null {} null {} null}
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}
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# The following block of tests, nan-1.2.*, are the same as the nan-1.1.*
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# tests above, except that the SELECT queries used to validate data
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# convert floating point values to text internally before returning them
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# to Tcl. This allows the tests to be run on platforms where Tcl has
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# problems converting "inf" and "-inf" from floating point to text format.
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# It also tests the internal float->text conversion routines a bit.
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#
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do_test nan-1.2.1 {
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db eval {
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DELETE FROM T1;
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}
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sqlite3_bind_double $::STMT 1 NaN
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sqlite3_step $::STMT
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sqlite3_reset $::STMT
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db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
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} {{} null}
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do_test nan-1.2.2 {
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sqlite3_bind_double $::STMT 1 +Inf
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sqlite3_step $::STMT
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sqlite3_reset $::STMT
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db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
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} {{} null Inf real}
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do_test nan-1.2.3 {
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sqlite3_bind_double $::STMT 1 -Inf
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sqlite3_step $::STMT
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sqlite3_reset $::STMT
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db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
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} {{} null Inf real -Inf real}
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do_test nan-1.2.4 {
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sqlite3_bind_double $::STMT 1 -NaN
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sqlite3_step $::STMT
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sqlite3_reset $::STMT
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db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
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} {{} null Inf real -Inf real {} null}
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do_test nan-1.2.5 {
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sqlite3_bind_double $::STMT 1 NaN0
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sqlite3_step $::STMT
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sqlite3_reset $::STMT
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db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
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} {{} null Inf real -Inf real {} null {} null}
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do_test nan-1.2.5 {
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sqlite3_bind_double $::STMT 1 -NaN0
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sqlite3_step $::STMT
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sqlite3_reset $::STMT
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db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
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} {{} null Inf real -Inf real {} null {} null {} null}
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do_test nan-1.2.6 {
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db eval {
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UPDATE t1 SET x=x-x;
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SELECT CAST(x AS text), typeof(x) FROM t1;
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}
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} {{} null {} null {} null {} null {} null {} null}
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do_test nan-2.1 {
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db eval {
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DELETE FROM T1;
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}
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sqlite3_bind_double $::STMT 1 NaN
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sqlite3_step $::STMT
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sqlite3_reset $::STMT
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db eval {SELECT x, typeof(x) FROM t1}
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} {{} null}
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sqlite3_finalize $::STMT
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# SQLite always converts NaN into NULL so it is not possible to write
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# a NaN value into the database file using SQLite. The following series
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# of tests writes a normal floating point value (0.5) into the database,
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# then writes directly into the database file to change the 0.5 into NaN.
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# Then it reads the value of the database to verify it is converted into
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# NULL.
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#
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do_test nan-3.1 {
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db eval {
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DELETE FROM t1;
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INSERT INTO t1 VALUES(0.5);
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PRAGMA auto_vacuum=OFF;
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PRAGMA page_size=1024;
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VACUUM;
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}
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hexio_read test.db 2040 8
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} {3FE0000000000000}
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do_test nan-3.2 {
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db eval {
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SELECT x, typeof(x) FROM t1
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}
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} {0.5 real}
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do_test nan-3.3 {
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db close
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hexio_write test.db 2040 FFF8000000000000
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sqlite3 db test.db
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db eval {SELECT x, typeof(x) FROM t1}
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} {{} null}
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do_test nan-3.4 {
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db close
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hexio_write test.db 2040 7FF8000000000000
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sqlite3 db test.db
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db eval {SELECT x, typeof(x) FROM t1}
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} {{} null}
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do_test nan-3.5 {
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db close
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hexio_write test.db 2040 FFFFFFFFFFFFFFFF
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sqlite3 db test.db
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db eval {SELECT x, typeof(x) FROM t1}
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} {{} null}
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do_test nan-3.6 {
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db close
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hexio_write test.db 2040 7FFFFFFFFFFFFFFF
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sqlite3 db test.db
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db eval {SELECT x, typeof(x) FROM t1}
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} {{} null}
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# Verify that the sqlite3AtoF routine is able to handle extreme
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# numbers.
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#
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do_test nan-4.1 {
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db eval {DELETE FROM t1}
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db eval "INSERT INTO t1 VALUES([string repeat 9 307].0)"
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db eval {SELECT x, typeof(x) FROM t1}
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} {1e+307 real}
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do_test nan-4.2 {
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db eval {DELETE FROM t1}
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db eval "INSERT INTO t1 VALUES([string repeat 9 308].0)"
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db eval {SELECT x, typeof(x) FROM t1}
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} {1e+308 real}
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do_test nan-4.3 {
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db eval {DELETE FROM t1}
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db eval "INSERT INTO t1 VALUES(-[string repeat 9 307].0)"
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db eval {SELECT x, typeof(x) FROM t1}
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} {-1e+307 real}
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do_test nan-4.4 {
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db eval {DELETE FROM t1}
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db eval "INSERT INTO t1 VALUES(-[string repeat 9 308].0)"
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db eval {SELECT x, typeof(x) FROM t1}
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} {-1e+308 real}
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do_test nan-4.5 {
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db eval {DELETE FROM t1}
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set big -[string repeat 0 10000][string repeat 9 308].[string repeat 0 10000]
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db eval "INSERT INTO t1 VALUES($big)"
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db eval {SELECT x, typeof(x) FROM t1}
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} {-1e+308 real}
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do_test nan-4.6 {
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db eval {DELETE FROM t1}
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set big [string repeat 0 10000][string repeat 9 308].[string repeat 0 10000]
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db eval "INSERT INTO t1 VALUES($big)"
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db eval {SELECT x, typeof(x) FROM t1}
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} {1e+308 real}
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if {$tcl_platform(platform) != "symbian"} {
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# Do not run these tests on Symbian, as the Tcl port doesn't like to
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# convert from floating point value "-inf" to a string.
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#
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do_test nan-4.7 {
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db eval {DELETE FROM t1}
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db eval "INSERT INTO t1 VALUES([string repeat 9 309].0)"
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db eval {SELECT x, typeof(x) FROM t1}
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} {inf real}
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do_test nan-4.8 {
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db eval {DELETE FROM t1}
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db eval "INSERT INTO t1 VALUES(-[string repeat 9 309].0)"
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db eval {SELECT x, typeof(x) FROM t1}
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} {-inf real}
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}
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do_test nan-4.9 {
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db eval {DELETE FROM t1}
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db eval "INSERT INTO t1 VALUES([string repeat 9 309].0)"
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db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
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} {Inf real}
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do_test nan-4.10 {
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db eval {DELETE FROM t1}
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db eval "INSERT INTO t1 VALUES(-[string repeat 9 309].0)"
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db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
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} {-Inf real}
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do_test nan-4.10 {
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db eval {DELETE FROM t1}
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db eval "INSERT INTO t1 VALUES(1234.5[string repeat 0 10000]12345)"
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db eval {SELECT x, typeof(x) FROM t1}
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} {1234.5 real}
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do_test nan-4.11 {
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db eval {DELETE FROM t1}
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db eval "INSERT INTO t1 VALUES(-1234.5[string repeat 0 10000]12345)"
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db eval {SELECT x, typeof(x) FROM t1}
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} {-1234.5 real}
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do_test nan-4.12 {
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db eval {DELETE FROM t1}
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set small [string repeat 0 10000].[string repeat 0 324][string repeat 9 10000]
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db eval "INSERT INTO t1 VALUES($small)"
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db eval {SELECT x, typeof(x) FROM t1}
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} {0.0 real}
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do_test nan-4.13 {
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db eval {DELETE FROM t1}
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set small \
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-[string repeat 0 10000].[string repeat 0 324][string repeat 9 10000]
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db eval "INSERT INTO t1 VALUES($small)"
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db eval {SELECT x, typeof(x) FROM t1}
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} {0.0 real}
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# These tests test some really, really small floating point numbers.
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#
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if {$tcl_platform(platform) != "symbian"} {
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# These two are not run on symbian because tcl has trouble converting
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# the very small numbers back to text form (probably due to a difference
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# in the sprintf() implementation).
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#
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do_test nan-4.14 {
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db eval {DELETE FROM t1}
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set small \
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[string repeat 0 10000].[string repeat 0 323][string repeat 9 10000]
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db eval "INSERT INTO t1 VALUES($small)"
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db eval {SELECT x, typeof(x) FROM t1}
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} {9.88131291682493e-324 real}
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do_test nan-4.15 {
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db eval {DELETE FROM t1}
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set small \
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-[string repeat 0 10000].[string repeat 0 323][string repeat 9 10000]
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db eval "INSERT INTO t1 VALUES($small)"
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db eval {SELECT x, typeof(x) FROM t1}
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} {-9.88131291682493e-324 real}
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}
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do_test nan-4.16 {
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db eval {DELETE FROM t1}
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set small [string repeat 0 10000].[string repeat 0 323][string repeat 9 10000]
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db eval "INSERT INTO t1 VALUES($small)"
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db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
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} {9.88131291682493e-324 real}
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do_test nan-4.17 {
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db eval {DELETE FROM t1}
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set small \
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-[string repeat 0 10000].[string repeat 0 323][string repeat 9 10000]
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db eval "INSERT INTO t1 VALUES($small)"
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db eval {SELECT CAST(x AS text), typeof(x) FROM t1}
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} {-9.88131291682493e-324 real}
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do_test nan-4.20 {
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db eval {DELETE FROM t1}
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set big [string repeat 9 10000].0e-9000
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db eval "INSERT INTO t1 VALUES($big)"
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db eval {SELECT x, typeof(x) FROM t1}
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} {inf real}
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finish_test
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