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43 lines
1.3 KiB
Plaintext
43 lines
1.3 KiB
Plaintext
# 2019-05-24
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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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# Test cases for rounding behavior of floating point values.
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#
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# TESTRUNNER: slow
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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set testprefix round1
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expr srand(0)
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unset -nocomplain iTest
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for {set iTest 1} {$iTest<=50000} {incr iTest} {
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set x1 [expr int(rand()*100000)]
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set x2 [expr int(rand()*100000)+1000*int(rand()*10000)]
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set n [expr int(rand()*8)+1]
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set x3 [string range [format %09d $x2] [expr {9-$n}] end]
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set r $x1.$x3
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set ans [string trimright $r 0]
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if {[string match *. $ans]} {set ans ${ans}0}
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do_test $iTest/$n/${r}4=>$ans {
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set x [db one "SELECT round(${r}4,$n)"]
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} $ans
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set x4 [string range [format %09d [expr {$x2+1}]] [expr {9-$n}] end]
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if {[string trim $x3 9]==""} {incr x1}
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set r2 $x1.$x4
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set ans [string trimright $r2 0]
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if {[string match *. $ans]} {set ans ${ans}0}
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do_test $iTest/$n/${r}6=>$ans {
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set x [db one "SELECT round(${r}6,$n)"]
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} $ans
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}
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finish_test
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