[gnumeric] tests: aggressively remove old roundtrip files.

[Morten Welinder <mortenw src gnome org>]

commit 879898fc532b600fd3df677d7d808b62b8fd6cca
Author: Morten Welinder <terra gnome org>
Date:   Mon Mar 10 14:04:41 2014 -0400

    tests: aggressively remove old roundtrip files.
    
    Otherwise a crash in the converter looks very strange.

 test/GnumericTest.pm |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/test/GnumericTest.pm b/test/GnumericTest.pm
index 662b470..a6e9f68 100644
--- a/test/GnumericTest.pm
+++ b/test/GnumericTest.pm
@@ -399,6 +399,7 @@ sub test_roundtrip {
     if ($resize) {
        $file_resized =~ s{^.*/}{};
        $file_resized =~ s/(\.gnumeric)$/-resize$1/;
+       unlink $file_resized;
        my $cmd = "$ssconvert --resize $resize '$file' '$file_resized'";
        print STDERR "# $cmd\n" if $verbose;
        $code = system ("$cmd 2>&1 | sed -e 's/^/| /'");
@@ -407,6 +408,7 @@ sub test_roundtrip {
     }
     
     my $tmp1 = "$tmp.$newext";
+    unlink $tmp1;
     &junkfile ($tmp1) unless $keep;
     {
        my $cmd = "$ssconvert -T $format '$file_resized' '$tmp1'";
@@ -416,6 +418,7 @@ sub test_roundtrip {
     }
 
     my $tmp2 = "$tmp-new.$ext";
+    unlink $tmp2;
     &junkfile ($tmp2) unless $keep;
     {
        my $cmd = "$ssconvert '$tmp1' '$tmp2'";
@@ -425,11 +428,13 @@ sub test_roundtrip {
     }
 
     my $tmp_xml = "$tmp.xml";
+    unlink $tmp_xml;
     &junkfile ($tmp_xml) unless $keep;
     $code = system ("zcat -f '$file_resized' | $normalize_gnumeric | $filter1 >'$tmp_xml'");
     &system_failure ('zcat', $code) if $code;
 
     my $tmp2_xml = "$tmp-new.xml";
+    unlink $tmp2_xml;
     &junkfile ($tmp2_xml) unless $keep;
     # print STDERR "zcat -f '$tmp2' | $normalize_gnumeric | $filter2 >'$tmp2_xml'\n";
     $code = system ("zcat -f '$tmp2' | $normalize_gnumeric | $filter2 >'$tmp2_xml'");