[gnumeric] Tests: add basic test for ssconvert's merge-to feature.

[Morten Welinder <mortenw src gnome org>]

commit 7ea706979798e593ac131ae63ca9756591977ee0
Author: Morten Welinder <terra gnome org>
Date:   Fri Apr 20 16:40:56 2018 -0400

    Tests: add basic test for ssconvert's merge-to feature.

 test/Makefile.am              |    1 +
 test/t9005-ssconvert-merge.pl |   19 +++++++++++++++++++
 2 files changed, 20 insertions(+), 0 deletions(-)
---
diff --git a/test/Makefile.am b/test/Makefile.am
index 0db2824..458c05f 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -173,6 +173,7 @@ TESTS =     t1000-statfuns.pl                       \
        t9002-ssdiff-self.pl                    \
        t9003-ssdiff-xml.pl                     \
        t9004-ssdiff-highlight.pl               \
+       t9005-ssconvert-merge.pl                \
        t9010-ssgrep.pl                         \
        t9100-number-match.pl                   \
        t9999-epilogue.pl
diff --git a/test/t9005-ssconvert-merge.pl b/test/t9005-ssconvert-merge.pl
new file mode 100755
index 0000000..484ec3b
--- /dev/null
+++ b/test/t9005-ssconvert-merge.pl
@@ -0,0 +1,19 @@
+#!/usr/bin/perl -w
+# -----------------------------------------------------------------------------
+
+use strict;
+use lib ($0 =~ m|^(.*/)| ? $1 : ".");
+use GnumericTest;
+
+&message ("Check ssconvert merge");
+
+my $src1 = "$samples/regress.gnumeric";
+my $src2 = "$samples/format-tests.gnumeric";
+
+my $tmp = "merged.gnumeric";
+&GnumericTest::junkfile ($tmp);
+
+# Not much of a test, but this at least confirms that the program
+# runs with no criticals.
+&test_command ("$ssconvert --merge-to=$tmp $src1 $src2",
+              sub { 1 } );