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authorP. J. McDermott <pj@pehjota.net>2017-01-05 03:45:54 (EST)
committer P. J. McDermott <pj@pehjota.net>2017-01-05 03:45:54 (EST)
commit5e2c05e6c289d2ed09f9cf5308231afddc1c2e9b (patch)
tree51c20a988d7d983a2a107ed962a5da0641c6f5ff
parent96b8f4135d834585e6354d6b54a0769710aba5be (diff)
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t/10_dadd.t: New file
-rw-r--r--MANIFEST1
-rw-r--r--t/10_dadd.t55
2 files changed, 56 insertions, 0 deletions
diff --git a/MANIFEST b/MANIFEST
index 8a99d60..9d054ad 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -6,4 +6,5 @@ Makefile.PL
README
lib/Math/Decimal/FastPP.pm
t/00_compile.t
+t/10_dadd.t
t/20_nj-st-75-2017.t
diff --git a/t/10_dadd.t b/t/10_dadd.t
new file mode 100644
index 0000000..256fc12
--- /dev/null
+++ b/t/10_dadd.t
@@ -0,0 +1,55 @@
+# t/10_dadd.t - dadd tests
+#
+# Copyright (C) 2017 Patrick McDermott
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+use strict;
+use warnings;
+
+use Test::More;
+use Math::Decimal::FastPP;
+
+my @tests;
+my $a;
+my $b;
+my $c;
+my $i;
+
+@tests = (
+ # a b c
+ [ 1.23, 4.56, 5.79],
+ [-1.23, 4.56, 3.33],
+ [-1.23, -4.56, -5.79],
+ [ 9.95, 0.52, 10.47],
+);
+
+plan("tests" => scalar(@tests) + 1);
+
+foreach (@tests) {
+ ($a, $b, $c) = @{$_};
+ is(dadd($a, $b), $c, sprintf("%5.2f + %5.2f = %5.2f", $a, $b, $c));
+}
+
+$a = 0;
+for ($i = 0; $i < 10000; ++$i) {
+ $a = dadd($a, 0.01);
+}
+is($a, "100.00", "adding 0.01 10000 times");
+$a = 0;
+for ($i = 0; $i < 10000; ++$i) {
+ $a += 0.01;
+}
+note("Using native floating-point arithmetic, the result is " . $a .
+ " (should be 100)");