ai-agent-book 精选快照（<2MB 代码与文档，来自 github.com/bojieli/ai-agent-book）

chapter9/browser-use-rpa/browser-use/tests/ci/test_config.py

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+"""Tests for lazy loading configuration system."""
+
+import os
+
+from browser_use.config import CONFIG
+
+
+class TestLazyConfig:
+	"""Test lazy loading of environment variables through CONFIG object."""
+
+	def test_config_reads_env_vars_lazily(self):
+		"""Test that CONFIG reads environment variables each time they're accessed."""
+		# Set an env var
+		original_value = os.environ.get('BROWSER_USE_LOGGING_LEVEL', '')
+		try:
+			os.environ['BROWSER_USE_LOGGING_LEVEL'] = 'debug'
+			assert CONFIG.BROWSER_USE_LOGGING_LEVEL == 'debug'
+
+			# Change the env var
+			os.environ['BROWSER_USE_LOGGING_LEVEL'] = 'info'
+			assert CONFIG.BROWSER_USE_LOGGING_LEVEL == 'info'
+
+			# Delete the env var to test default
+			del os.environ['BROWSER_USE_LOGGING_LEVEL']
+			assert CONFIG.BROWSER_USE_LOGGING_LEVEL == 'info'  # default value
+		finally:
+			# Restore original value
+			if original_value:
+				os.environ['BROWSER_USE_LOGGING_LEVEL'] = original_value
+			else:
+				os.environ.pop('BROWSER_USE_LOGGING_LEVEL', None)
+
+	def test_boolean_env_vars(self):
+		"""Test boolean environment variables are parsed correctly."""
+		original_value = os.environ.get('ANONYMIZED_TELEMETRY', '')
+		try:
+			# Test true values
+			for true_val in ['true', 'True', 'TRUE', 'yes', 'Yes', '1']:
+				os.environ['ANONYMIZED_TELEMETRY'] = true_val
+				assert CONFIG.ANONYMIZED_TELEMETRY is True, f'Failed for value: {true_val}'
+
+			# Test false values
+			for false_val in ['false', 'False', 'FALSE', 'no', 'No', '0']:
+				os.environ['ANONYMIZED_TELEMETRY'] = false_val
+				assert CONFIG.ANONYMIZED_TELEMETRY is False, f'Failed for value: {false_val}'
+		finally:
+			if original_value:
+				os.environ['ANONYMIZED_TELEMETRY'] = original_value
+			else:
+				os.environ.pop('ANONYMIZED_TELEMETRY', None)
+
+	def test_api_keys_lazy_loading(self):
+		"""Test API keys are loaded lazily."""
+		original_value = os.environ.get('OPENAI_API_KEY', '')
+		try:
+			# Test empty default
+			os.environ.pop('OPENAI_API_KEY', None)
+			assert CONFIG.OPENAI_API_KEY == ''
+
+			# Set a value
+			os.environ['OPENAI_API_KEY'] = 'test-key-123'
+			assert CONFIG.OPENAI_API_KEY == 'test-key-123'
+
+			# Change the value
+			os.environ['OPENAI_API_KEY'] = 'new-key-456'
+			assert CONFIG.OPENAI_API_KEY == 'new-key-456'
+		finally:
+			if original_value:
+				os.environ['OPENAI_API_KEY'] = original_value
+			else:
+				os.environ.pop('OPENAI_API_KEY', None)
+
+	def test_path_configuration(self):
+		"""Test path configuration variables."""
+		original_value = os.environ.get('XDG_CACHE_HOME', '')
+		try:
+			# Test custom path
+			test_path = '/tmp/test-cache'
+			os.environ['XDG_CACHE_HOME'] = test_path
+			# Use Path().resolve() to handle symlinks (e.g., /tmp -> /private/tmp on macOS)
+			from pathlib import Path
+
+			assert CONFIG.XDG_CACHE_HOME == Path(test_path).resolve()
+
+			# Test default path expansion
+			os.environ.pop('XDG_CACHE_HOME', None)
+			assert '/.cache' in str(CONFIG.XDG_CACHE_HOME)
+		finally:
+			if original_value:
+				os.environ['XDG_CACHE_HOME'] = original_value
+			else:
+				os.environ.pop('XDG_CACHE_HOME', None)
+
+	def test_cloud_sync_inherits_telemetry(self):
+		"""Test BROWSER_USE_CLOUD_SYNC inherits from ANONYMIZED_TELEMETRY when not set."""
+		telemetry_original = os.environ.get('ANONYMIZED_TELEMETRY', '')
+		sync_original = os.environ.get('BROWSER_USE_CLOUD_SYNC', '')
+		try:
+			# When BROWSER_USE_CLOUD_SYNC is not set, it should inherit from ANONYMIZED_TELEMETRY
+			os.environ['ANONYMIZED_TELEMETRY'] = 'true'
+			os.environ.pop('BROWSER_USE_CLOUD_SYNC', None)
+			assert CONFIG.BROWSER_USE_CLOUD_SYNC is True
+
+			os.environ['ANONYMIZED_TELEMETRY'] = 'false'
+			os.environ.pop('BROWSER_USE_CLOUD_SYNC', None)
+			assert CONFIG.BROWSER_USE_CLOUD_SYNC is False
+
+			# When explicitly set, it should use its own value
+			os.environ['ANONYMIZED_TELEMETRY'] = 'false'
+			os.environ['BROWSER_USE_CLOUD_SYNC'] = 'true'
+			assert CONFIG.BROWSER_USE_CLOUD_SYNC is True
+		finally:
+			if telemetry_original:
+				os.environ['ANONYMIZED_TELEMETRY'] = telemetry_original
+			else:
+				os.environ.pop('ANONYMIZED_TELEMETRY', None)
+			if sync_original:
+				os.environ['BROWSER_USE_CLOUD_SYNC'] = sync_original
+			else:
+				os.environ.pop('BROWSER_USE_CLOUD_SYNC', None)