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Add test file for the 'modf' routine in rakudo #742

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Add test file for the 'modf' routine in rakudo #742

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80fb9d5
Add test file for the 'modf' routine in rakudo
tbrowder Jun 27, 2021
47a7dd8
commit all changes prior to closing branch 'modf', roast PR #742
tbrowder Jul 4, 2021
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91 changes: 91 additions & 0 deletions S32-num/modf.t
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Original file line number Diff line number Diff line change
@@ -0,0 +1,91 @@
use Test;

# L<S32::Numeric/Numeric/"=item modf">

plan 240;

my %n =
'-123457e-3' => [-123, -0.457, 3],
'-10' => [-10, 0, 0],
'-0x10' => [-16, 0, 0],
'-0o10' => [-8, 0, 0],
'-0xa' => [-10, 0, 0],
'-0o127' => [-87, 0, 0],
'-100' => [-100, 0, 0],
'-5.9' => [-5, -0.9, 1],
'-5.499' => [-5, -0.499, 3],
'-2' => [-2, 0, 0],
'-3/2' => [-1, -0.5, 1],
'-1.5e0' => [-1, -0.5, 1],
'-1.4999' => [-1, -0.4999, 4],
'-1.23456' => [-1, -0.23456, 5],
'-1' => [-1, 0, 0],
'-0.5' => [ 0, -0.5, 1],
'-0.499' => [ 0, -0.499, 3],
'-0.1' => [ 0, -0.1, 1],
'-0' => [ 0, 0, 0],
'-1.5e-10' => [ 0, -0.000_000_000_15, 11], # -0.000_000_000_15
;


# test the routine
for %n.kv -> $val is copy, $arr {
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my $int-part = @($arr)[0];
my $frac-part = @($arr)[1];
my $places = @($arr)[2];

# check the negative values
my ($int, $frac) = modf $val;
is $int, $int-part, "modf($val), int: expected $int-part, got $int";
is-approx $frac, $frac-part, "modf($val), approx frac: expected $frac-part, got $frac";

# using places for exact frac match
($int, $frac) = modf $val, $places;
is $frac, $frac-part, "modf($val, $places), exact frac: expected $frac-part, got $frac";

# check the positive values
$val .= abs;
$int-part .= abs;
$frac-part .= abs;

($int, $frac) = modf $val;
is $int, $int-part, "modf($val), int: expected $int-part, got $int";
is-approx $frac, $frac-part, "modf($val), approx frac: expected $frac-part, got $frac";

# using places for exact frac match
($int, $frac) = modf $val, $places;
is $frac, $frac-part, "modf($val, $places), exact frac: expected $frac-part, got $frac";
}

# test the method
for %n.kv -> $val is copy, $arr {
$val .= Real;

my $int-part = @($arr)[0];
my $frac-part = @($arr)[1];
my $places = @($arr)[2];

# check the negative values
my ($int, $frac) = $val.modf;
is $int, $int-part, "$val.modf(), int: expected $int-part, got $int";
is-approx $frac, $frac-part, "modf($val), approx frac: expected $frac-part, got $frac";

# using places for exact frac match
($int, $frac) = $val.modf($places);
is $frac, $frac-part, "$val.modf($places), exact frac: expected $frac-part, got $frac";

# check the positive values
$val .= abs;
$int-part .= abs;
$frac-part .= abs;

($int, $frac) = $val.modf;
is $int, $int-part, "$val.modf(), int: expected $int-part, got $int";
is-approx $frac, $frac-part, "modf($val), approx frac: expected $frac-part, got $frac";

# using places for exact frac match
($int, $frac) = $val.modf($places);
is $frac, $frac-part, "$val.modf($places), exact frac: expected $frac-part, got $frac";
}

# vim: expandtab shiftwidth=4
1 change: 1 addition & 0 deletions spectest.data
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Original file line number Diff line number Diff line change
Expand Up @@ -1200,6 +1200,7 @@ S32-num/fatrat.t
S32-num/int.t
S32-num/is-prime.t
S32-num/log.t
S32-num/modf.t
S32-num/narrow.t
S32-num/negative-zero.t
S32-num/pi.t
Expand Down