Test --config

diff --git a/t/conf/param.t b/t/conf/param.t
new file mode 100755 (executable)
index 0000000..3fe5436
--- /dev/null
+++ b/t/conf/param.t
@@ -0,0 +1,47 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+use lib qw(lib);
+
+use Colorize::Common qw(:defaults $write_to_tmpfile);
+use File::Temp qw(tmpnam);
+use Test::More;
+
+my $tests = 1;
+
+my $conf = <<'EOT';
+attr=bold
+color=blue
+omit-color-empty=yes
+EOT
+
+plan tests => $tests;
+
+SKIP: {
+    my $program = tmpnam();
+    my $conf_file = tmpnam();
+                                                                    # -DTEST omitted on purpose
+    skip 'compiling failed (config param)', $tests unless system(qq($compiler -o $program $source)) == 0;
+
+    my $infile = $write_to_tmpfile->(<<'EOT');
+foo
+
+bar
+
+baz
+EOT
+    open(my $fh, '>', $conf_file) or die "Cannot open `$conf_file' for writing: $!\n";
+    print {$fh} $conf;
+    close($fh);
+
+    is(qx($program --config=$conf_file $infile), <<"EOT", 'config param');
+\e[1;34mfoo\e[0m
+
+\e[1;34mbar\e[0m
+
+\e[1;34mbaz\e[0m
+EOT
+    unlink $program;
+    unlink $conf_file;
+}