run tests without using 'nose'

run_tests.sh -> run_tests.py

scripts/run_tests.py

@@ -0,0 +1,46 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+# Copyright 2021 Mike Fährmann
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+
+import os
+import sys
+import unittest
+
+TEST_DIRECTORY = os.path.join(
+    os.path.dirname(os.path.dirname(os.path.abspath(__file__))), "test")
+
+sys.path.insert(0, TEST_DIRECTORY)
+
+if len(sys.argv) <= 1:
+    TESTS = [
+        file.rpartition(".")[0]
+        for file in os.listdir(TEST_DIRECTORY)
+        if file.startswith("test_") and file != "test_results.py"
+    ]
+else:
+    TESTS = [
+        name if name.startswith("test_") else "test_" + name
+        for name in sys.argv[1:]
+    ]
+
+
+suite = unittest.TestSuite()
+
+for test in TESTS:
+    try:
+        module = __import__(test)
+    except ImportError:
+        print("unable to import", test)
+    else:
+        tests = unittest.defaultTestLoader.loadTestsFromModule(module)
+        suite.addTests(tests)
+
+if __name__ == "__main__":
+    result = unittest.TextTestRunner(verbosity=2).run(suite)
+    if result.errors or result.failures:
+        sys.exit(1)

scripts/run_tests.sh

@@ -1,24 +0,0 @@
-#!/bin/bash
-
-DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
-
-TESTS_CORE=(cache config cookies downloader extractor formatter job oauth output postprocessor text util)
-TESTS_RESULTS=(results)
-
-
-# select tests
-case "${1:-${GALLERYDL_TESTS:-core}}" in
-    core)    TESTS=( ${TESTS_CORE[@]}    );;
-    results) TESTS=( ${TESTS_RESULTS[@]} );;
-    *)       TESTS=(                     );;
-esac
-
-
-# transform each array element to test_###.py
-TESTS=( ${TESTS[@]/#/test_} )
-TESTS=( ${TESTS[@]/%/.py}   )
-
-
-# run 'nosetests' with selected tests
-# (or all tests if ${TESTS} is empty)
-nosetests --verbose -w "${DIR}/../test" ${TESTS[@]}