Testcases: new-test prints usage without input

Prevent the accidental creation of new tests with empty names by
printing usage information for new-test when the test name would be
empty.

diff --git a/testcases/new-test b/testcases/new-test
index c2546158267fa2b5a49bf75579b936fea7e9dd7a..14465d2dc2494871fb81fd335d6f371980717dac 100755 (executable)
--- a/testcases/new-test
+++ b/testcases/new-test
@@ -15,6 +15,16 @@ use File::Basename qw(basename);
 use Getopt::Long;
 use v5.10;
 
+my $usage = <<'EOF';
+Script to create a new testcase from a template.
+
+    # Create (and edit) a new test for moving floating windows
+    ./new-test floating move
+
+    # Create (and edit) a multi-monitor test for moving workspaces
+    ./new-test -m move workspaces
+EOF
+
 my $multi_monitor;
 
 my $result = GetOptions(
@@ -24,6 +34,11 @@ my $result = GetOptions(
 my $testname = join(' ', @ARGV);
 $testname =~ s/ /-/g;
 
+unless (length $testname) {
+    say $usage;
+    exit(0);
+}
+
 my $header = <<'EOF';
 #!perl
 # vim:ts=4:sw=4:expandtab