DABH
52 lines
1.8 KiB
Python
52 lines
1.8 KiB
Python
# Copyright 2026 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Unit tests for the platform random module."""
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import random
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import unittest
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from google.adk import platform as adk_platform
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class TestRandom(unittest.TestCase):
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def tearDown(self) -> None:
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# Reset provider to default after each test
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adk_platform.reset_random_provider()
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def test_default_random_provider(self) -> None:
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# Verify it returns a random.Random instance producing values in range
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rng = adk_platform.get_random()
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self.assertIsInstance(rng, random.Random)
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value = rng.uniform(0.0, 1.0)
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self.assertGreaterEqual(value, 0.0)
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self.assertLessEqual(value, 1.0)
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def test_custom_random_provider(self) -> None:
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# Test override
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seeded = random.Random(42)
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adk_platform.set_random_provider(lambda: seeded)
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self.assertIs(adk_platform.get_random(), seeded)
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expected = random.Random(42).uniform(0.0, 1.0)
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self.assertEqual(adk_platform.get_random().uniform(0.0, 1.0), expected)
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def test_reset_random_provider(self) -> None:
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seeded = random.Random(42)
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adk_platform.set_random_provider(lambda: seeded)
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adk_platform.reset_random_provider()
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self.assertIsNot(adk_platform.get_random(), seeded)
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# Default provider returns a stable module-level instance
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self.assertIs(adk_platform.get_random(), adk_platform.get_random())
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