From: Vincent Pit <vince@profvince.com>
Date: Wed, 21 Jul 2010 13:21:55 +0000 (+0200)
Subject: Test rectangle and circle clips covering
X-Git-Tag: v0.01~27
X-Git-Url: http://git.vpit.fr/?p=perl%2Fmodules%2FLaTeX-TikZ.git;a=commitdiff_plain;h=7a0f854a2dc8c6cfacb11841271427df318f4e20;ds=sidebyside

Test rectangle and circle clips covering
---

diff --git a/t/22-clip.t b/t/22-clip.t
index b3a1616..0b0ac32 100644
--- a/t/22-clip.t
+++ b/t/22-clip.t
@@ -3,7 +3,7 @@
 use strict;
 use warnings;
 
-use Test::More tests => 2 + 2 * 10;
+use Test::More tests => 8 + 2 * 16;
 
 use LaTeX::TikZ;
 
@@ -179,3 +179,119 @@ check $seq2, 'mods folding with clips and layers', <<'RES';
 \end{pgfonlayer}
 RES
 
+my $a = Tikz->point;
+my $b = Tikz->point(4, 2);
+my $c = Tikz->point(1, 3);
+my $d = Tikz->point(2, 1);
+
+my $r1 = Tikz->rectangle($a, $b);
+my $r2 = Tikz->rectangle($c, $d);
+
+$seq = eval {
+ Tikz->seq(
+  Tikz->raw("foo")
+       ->clip($r1)
+ )->clip($r2);
+};
+is $@, '', 'two intersecting rectangle clips doesn\'t croak';
+
+check $seq, 'two intersecting rectangle clips', <<'RES';
+\begin{scope}
+\clip (1cm,3cm) rectangle (2cm,1cm) ;
+\begin{scope}
+\clip (0cm,0cm) rectangle (4cm,2cm) ;
+\draw foo ;
+\end{scope}
+\end{scope}
+RES
+
+$r2 = Tikz->rectangle($a, $d); # $r2 is a subset of $r1
+
+$seq = eval {
+ Tikz->seq(
+  Tikz->raw("foo")
+       ->clip($r1)
+ )->clip($r2);
+};
+is $@, '', 'two overlapping rectangle clips 1 doesn\'t croak';
+
+check $seq, 'two overlapping rectangle clips 1', <<'RES';
+\begin{scope}
+\clip (0cm,0cm) rectangle (2cm,1cm) ;
+\draw foo ;
+\end{scope}
+RES
+
+$seq = eval {
+ Tikz->seq(
+  Tikz->raw("foo")
+       ->clip($r2)
+ )->clip($r1);
+};
+is $@, '', 'two overlapping rectangle clips 2 doesn\'t croak';
+
+check $seq, 'two overlapping rectangle clips 2', <<'RES';
+\begin{scope}
+\clip (0cm,0cm) rectangle (4cm,2cm) ;
+\begin{scope}
+\clip (0cm,0cm) rectangle (2cm,1cm) ;
+\draw foo ;
+\end{scope}
+\end{scope}
+RES
+
+my $c1 = Tikz->circle($a, 2);
+my $c2 = Tikz->circle($d, 3);
+
+$seq = eval {
+ Tikz->seq(
+  Tikz->raw("foo")
+       ->clip($c1)
+ )->clip($c2);
+};
+is $@, '', 'two intersecting circle clips doesn\'t croak';
+
+check $seq, 'two intersecting circle clips', <<'RES';
+\begin{scope}
+\clip (2cm,1cm) circle (3cm) ;
+\begin{scope}
+\clip (0cm,0cm) circle (2cm) ;
+\draw foo ;
+\end{scope}
+\end{scope}
+RES
+
+$c2 = Tikz->circle($a, 1); # $c2 is a subset of $c1
+
+$seq = eval {
+ Tikz->seq(
+  Tikz->raw("foo")
+       ->clip($c1)
+ )->clip($c2);
+};
+is $@, '', 'two overlapping circle clips 1 doesn\'t croak';
+
+check $seq, 'two overlapping circle clips 1', <<'RES';
+\begin{scope}
+\clip (0cm,0cm) circle (1cm) ;
+\draw foo ;
+\end{scope}
+RES
+
+$seq = eval {
+ Tikz->seq(
+  Tikz->raw("foo")
+       ->clip($c2)
+ )->clip($c1);
+};
+is $@, '', 'two overlapping circle clips 2 doesn\'t croak';
+
+check $seq, 'two overlapping circle clips 2', <<'RES';
+\begin{scope}
+\clip (0cm,0cm) circle (2cm) ;
+\begin{scope}
+\clip (0cm,0cm) circle (1cm) ;
+\draw foo ;
+\end{scope}
+\end{scope}
+RES