support native integers, pack("L_",...) etc. (via private mail)

[p5sagit/p5-mst-13.2.git] / t / lib / trig.t

diff --git a/t/lib/trig.t b/t/lib/trig.t
index c2bc2a8..20669f0 100755 (executable)
--- a/t/lib/trig.t
+++ b/t/lib/trig.t
@@ -10,7 +10,7 @@
 
 BEGIN {
     chdir 't' if -d 't';
-    @INC = '../lib';
+    unshift @INC, '../lib';
 }
 
 use Math::Trig;
@@ -21,11 +21,15 @@ use vars qw($x $y $z);
 
 my $eps = 1e-11;
 
+if ($^O eq 'unicos') { # See lib/Math/Complex.pm and t/lib/complex.t.
+    $eps = 1e-10;
+}
+
 sub near ($$;$) {
     abs($_[0] - $_[1]) < (defined $_[2] ? $_[2] : $eps);
 }
 
-print "1..7\n";
+print "1..20\n";
 
 $x = 0.9;
 print 'not ' unless (near(tan($x), sin($x) / cos($x)));
@@ -54,4 +58,103 @@ print "ok 6\n";
 print 'not ' unless (near(rad2deg(pi), 180));
 print "ok 7\n";
 
+use Math::Trig ':radial';
+
+{
+    my ($r,$t,$z) = cartesian_to_cylindrical(1,1,1);
+
+    print 'not ' unless (near($r, sqrt(2)))     and
+                       (near($t, deg2rad(45))) and
+                       (near($z, 1));
+    print "ok 8\n";
+
+    ($x,$y,$z) = cylindrical_to_cartesian($r, $t, $z);
+
+    print 'not ' unless (near($x, 1)) and
+                       (near($y, 1)) and
+                       (near($z, 1));
+    print "ok 9\n";
+
+    ($r,$t,$z) = cartesian_to_cylindrical(1,1,0);
+
+    print 'not ' unless (near($r, sqrt(2)))     and
+                       (near($t, deg2rad(45))) and
+                       (near($z, 0));
+    print "ok 10\n";
+
+    ($x,$y,$z) = cylindrical_to_cartesian($r, $t, $z);
+
+    print 'not ' unless (near($x, 1)) and
+                       (near($y, 1)) and
+                       (near($z, 0));
+    print "ok 11\n";
+}
+
+{
+    my ($r,$t,$f) = cartesian_to_spherical(1,1,1);
+
+    print 'not ' unless (near($r, sqrt(3)))     and
+                       (near($t, deg2rad(45))) and
+                       (near($f, atan2(sqrt(2), 1)));
+    print "ok 12\n";
+
+    ($x,$y,$z) = spherical_to_cartesian($r, $t, $f);
+
+    print 'not ' unless (near($x, 1)) and
+                       (near($y, 1)) and
+                       (near($z, 1));
+    print "ok 13\n";
+
+    ($r,$t,$f) = cartesian_to_spherical(1,1,0);
+
+    print 'not ' unless (near($r, sqrt(2)))     and
+                       (near($t, deg2rad(45))) and
+                       (near($f, deg2rad(90)));
+    print "ok 14\n";
+
+    ($x,$y,$z) = spherical_to_cartesian($r, $t, $f);
+
+    print 'not ' unless (near($x, 1)) and
+                       (near($y, 1)) and
+                       (near($z, 0));
+    print "ok 15\n";
+}
+
+{
+    my ($r,$t,$z) = cylindrical_to_spherical(spherical_to_cylindrical(1,1,1));
+
+    print 'not ' unless (near($r, 1)) and
+                       (near($t, 1)) and
+                       (near($z, 1));
+    print "ok 16\n";
+
+    ($r,$t,$z) = spherical_to_cylindrical(cylindrical_to_spherical(1,1,1));
+
+    print 'not ' unless (near($r, 1)) and
+                       (near($t, 1)) and
+                       (near($z, 1));
+    print "ok 17\n";
+}
+
+{
+        use Math::Trig 'great_circle_distance';
+
+       print 'not '
+           unless (near(great_circle_distance(0, 0, 0, pi/2), pi/2));
+       print "ok 18\n";
+
+       print 'not '
+           unless (near(great_circle_distance(0, 0, pi, pi), pi));
+       print "ok 19\n";
+
+       # London to Tokyo.
+       my @L = (deg2rad(-0.5), deg2rad(90 - 51.3));
+        my @T = (deg2rad(139.8),deg2rad(90 - 35.7));
+
+       my $km = great_circle_distance(@L, @T, 6378);
+
+        print 'not ' unless (near($km, 9605.26637021388));
+       print "ok 20\n";
+}
+
 # eof