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Gist for testing various Rounding methods
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# Tests for :HALF-[UP|DOWN|EVEN|ODD] and [TO|FROM]-ZERO rounding | |
# https://github.com/rakudo/rakudo/issues/2826 | |
{ | |
my @tests = [ | |
[ 1.5, :HALF-UP(2), :HALF-DOWN(1), :HALF-EVEN(2), :HALF-ODD(1), :TO-ZERO(1), :FROM-ZERO(2) ], | |
[ 2, :HALF-UP(2), :HALF-DOWN(2), :HALF-EVEN(2), :HALF-ODD(2), :TO-ZERO(2), :FROM-ZERO(2) ], | |
[ 1.4999, :HALF-UP(1), :HALF-DOWN(1), :HALF-EVEN(1), :HALF-ODD(1), :TO-ZERO(1), :FROM-ZERO(1) ], | |
[ 0.5, :HALF-UP(1), :HALF-DOWN(0), :HALF-EVEN(0), :HALF-ODD(1), :TO-ZERO(0), :FROM-ZERO(1) ], | |
[ 0.1, :HALF-UP(0), :HALF-DOWN(0), :HALF-EVEN(0), :HALF-ODD(0), :TO-ZERO(0), :FROM-ZERO(0) ], | |
[ 0, :HALF-UP(0), :HALF-DOWN(0), :HALF-EVEN(0), :HALF-ODD(0), :TO-ZERO(0), :FROM-ZERO(0) ], | |
[ -0.01, :HALF-UP(0), :HALF-DOWN(0), :HALF-EVEN(0), :HALF-ODD(0), :TO-ZERO(0), :FROM-ZERO(0) ], | |
[ -1, :HALF-UP(-1), :HALF-DOWN(-1), :HALF-EVEN(-1), :HALF-ODD(-1), :TO-ZERO(-1), :FROM-ZERO(-1) ], | |
[ -5.9, :HALF-UP(-6), :HALF-DOWN(-6), :HALF-EVEN(-6), :HALF-ODD(-6), :TO-ZERO(-6), :FROM-ZERO(-6) ], | |
[ -0.5, :HALF-UP(0), :HALF-DOWN(-1), :HALF-EVEN(0), :HALF-ODD(-1), :TO-ZERO(0), :FROM-ZERO(-1) ], | |
[ -0.499, :HALF-UP(0), :HALF-DOWN(0), :HALF-EVEN(0), :HALF-ODD(0), :TO-ZERO(0), :FROM-ZERO(0) ], | |
[ -5.499, :HALF-UP(-5), :HALF-DOWN(-5), :HALF-EVEN(-5), :HALF-ODD(-5), :TO-ZERO(-5), :FROM-ZERO(-5) ], | |
[ -2, :HALF-UP(-2), :HALF-DOWN(-2), :HALF-EVEN(-2), :HALF-ODD(-2), :TO-ZERO(-2), :FROM-ZERO(-2) ], | |
[ 9999999999999999999999999999999999999999998.5, :HALF-UP( 9999999999999999999999999999999999999999999), :HALF-DOWN( 9999999999999999999999999999999999999999998), :HALF-EVEN(9999999999999999999999999999999999999999998), :HALF-ODD( 9999999999999999999999999999999999999999999), :TO-ZERO( 9999999999999999999999999999999999999999998), :FROM-ZERO( 9999999999999999999999999999999999999999999) ], | |
[ -9999999999999999999999999999999999999999998.5, :HALF-UP(-9999999999999999999999999999999999999999998), :HALF-DOWN(-9999999999999999999999999999999999999999999), :HALF-EVEN(9999999999999999999999999999999999999999998), :HALF-ODD(-9999999999999999999999999999999999999999999), :TO-ZERO(-9999999999999999999999999999999999999999998), :FROM-ZERO(-9999999999999999999999999999999999999999999) ], | |
[ -9999999999999999999999999999999999999999998.9, :HALF-UP(-9999999999999999999999999999999999999999999), :HALF-DOWN(-9999999999999999999999999999999999999999999), :HALF-EVEN(9999999999999999999999999999999999999999999), :HALF-ODD(-9999999999999999999999999999999999999999999), :TO-ZERO(-9999999999999999999999999999999999999999999), :FROM-ZERO(-9999999999999999999999999999999999999999999) ], | |
]; | |
my $to-round; | |
for @tests -> $test { | |
$to-round = $test.shift; | |
for @$test -> $test-pair { | |
ok $to-round.round(|Pair.new($test-pair.key,True)) == $test-pair.value, "Round {$to-round}:{$test-pair.key} == {$test-pair.value}"; | |
} | |
} | |
} |
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