t/op/local.t: tests for RT #7615

[perl5.git] / t / op / int.t

diff --git a/t/op/int.t b/t/op/int.t
old mode 100755 (executable)
new mode 100644 (file)
index c01c12a..7e936da
--- a/t/op/int.t
+++ b/t/op/int.t
@@ -1,24 +1,85 @@
 #!./perl
 
-print "1..6\n";
+BEGIN {
+    chdir 't' if -d 't';
+    require './test.pl';
+    set_up_inc('../lib');
+    require Config;
+}
+
+plan 17;
 
 # compile time evaluation
 
-if (int(1.234) == 1) {print "ok 1\n";} else {print "not ok 1\n";}
+my $test1_descr = 'compile time evaluation 1.234';
+if (int(1.234) == 1) {pass($test1_descr)} else {fail($test1_descr)}
 
-if (int(-1.234) == -1) {print "ok 2\n";} else {print "not ok 2\n";}
+my $test2_descr = 'compile time evaluation -1.234';
+if (int(-1.234) == -1) {pass($test2_descr)} else {fail($test2_descr)}
 
 # run time evaluation
 
 $x = 1.234;
-if (int($x) == 1) {print "ok 3\n";} else {print "not ok 3\n";}
-if (int(-$x) == -1) {print "ok 4\n";} else {print "not ok 4\n";}
+cmp_ok(int($x), '==', 1, 'run time evaluation 1');
+cmp_ok(int(-$x), '==', -1, 'run time evaluation -1');
 
 $x = length("abc") % -10;
-print $x == -7 ? "ok 5\n" : "# expected -7, got $x\nnot ok 5\n";
+cmp_ok($x, '==', -7, 'subtract from string length');
 
 {
+    my $fail;
     use integer;
     $x = length("abc") % -10;
-    print $x == 3 ? "ok 6\n" : "# expected 3, got $x\nnot ok 6\n";
+    $y = (3/-10)*-10;
+    ok($x+$y == 3, 'x+y equals 3') or ++$fail;
+    ok(abs($x) < 10, 'abs(x) < 10') or ++$fail;
+    if ($fail) {
+       diag("\$x == $x", "\$y == $y");
+    }
+}
+
+@x = ( 6, 8, 10);
+cmp_ok($x["1foo"], '==', 8, 'check bad strings still get converted');
+
+# 4,294,967,295 is largest unsigned 32 bit integer
+
+$x = 4294967303.15;
+$y = int ($x);
+is($y, "4294967303", 'check values > 32 bits work');
+
+$y = int (-$x);
+
+is($y, "-4294967303", 'negative value more than maximum unsigned 32 bit value');
+
+$x = 4294967294.2;
+$y = int ($x);
+
+is($y, "4294967294", 'floating point value slightly less than the largest unsigned 32 bit');
+
+$x = 4294967295.7;
+$y = int ($x);
+
+is($y, "4294967295", 'floating point value slightly more than largest unsigned 32 bit');
+
+$x = 4294967296.11312;
+$y = int ($x);
+
+is($y, "4294967296", 'floating point value more than largest unsigned 32 bit');
+
+$y = int(279964589018079/59);
+cmp_ok($y, '==', 4745162525730, 'compile time division, result of about 42 bits');
+
+$y = 279964589018079;
+$y = int($y/59);
+cmp_ok($y, '==', 4745162525730, 'run time divison, result of about 42 bits');
+
+SKIP:
+{   # see #126635
+    my $large;
+    $large = eval "0xffff_ffff" if $Config::Config{ivsize} == 4;
+    $large = eval "0xffff_ffff_ffff_ffff" if $Config::Config{ivsize} == 8;
+    $large or skip "Unusual ivsize", 1;
+    for my $x ($large, -1) {
+        cmp_ok($x, "==", int($x), "check $x == int($x)");
+    }
 }