moving load plugins into plugins from main, adding tests

tests/unit/test_plugins.py

@@ -0,0 +1,32 @@
+import pytest
+from pathlib import Path
+from zipfile import ZipFile
+from autogpt.plugins import inspect_zip_for_module, scan_plugins, load_plugins
+from autogpt.config import Config
+
+PLUGINS_TEST_DIR = "tests/unit/data/test_plugins/"
+PLUGIN_TEST_ZIP_FILE = "Auto-GPT-Plugin-Test-master.zip"
+PLUGIN_TEST_INIT_PY = "Auto-GPT-Plugin-Test-master/src/auto_gpt_plugin_template/__init__.py"
+
+
+@pytest.fixture
+def config_with_plugins():
+    cfg = Config()
+    cfg.plugins_dir = PLUGINS_TEST_DIR
+    return cfg
+
+
+def test_inspect_zip_for_module():
+    result = inspect_zip_for_module(str(PLUGINS_TEST_DIR + PLUGIN_TEST_ZIP_FILE))
+    assert result == PLUGIN_TEST_INIT_PY
+
+def test_scan_plugins():
+    result = scan_plugins(PLUGINS_TEST_DIR, debug=True)
+    assert len(result) == 1
+    assert result[0][0] == PLUGIN_TEST_INIT_PY
+
+
+def test_load_plugins_blacklisted(config_with_plugins):
+    config_with_plugins.plugins_blacklist = ['AbstractSingleton']
+    result = load_plugins(cfg=config_with_plugins)
+    assert len(result) == 0