Add some rudimentary test selection support

test/main.lua

@@ -242,6 +242,17 @@ function main()
     end
 
     print('Filtering tests')
+    if config.tests then
+        local orig_length = #tests
+        for i = #tests, 1, -1 do
+            for _, pattern in pairs(config.tests) do
+                if not tests[i].name:match(pattern) then
+                    table.remove(tests, i)
+                end
+            end
+        end
+        print('Selected tests: ' .. #tests .. '/' .. orig_length)
+    end
     local status = load_test_status() or {}
     for i = #tests, 1, -1 do
         local test = tests[i]

travis/run-tests.py

@@ -17,6 +17,8 @@ parser.add_argument('--no-quit', action='store_true',
     help='Do not quit DF when done')
 parser.add_argument('--test-dir', '--test-folder',
     help='Base test folder (default: df_folder/test)')
+parser.add_argument('-t', '--test', dest='tests', nargs='+',
+    help='Test(s) to run (Lua patterns accepted)')
 args = parser.parse_args()
 
 if (not sys.stdin.isatty() or not sys.stdout.isatty() or not sys.stderr.isatty()) and not args.headless:
@@ -77,6 +79,7 @@ test_config_file = 'test_config.json'
 with open(test_config_file, 'w') as f:
     json.dump({
         'test_dir': args.test_dir,
+        'tests': args.tests,
     }, f)
 
 try: