localhost base_url fixup when running in a docker container (#11474)

Co-authored-by: Rohit Malhotra <rohitvinodmalhotra@gmail.com>

tests/unit/utils/test_environment.py

@@ -0,0 +1,32 @@
+import pytest
+
+from openhands.utils import environment
+
+
+@pytest.fixture(autouse=True)
+def clear_docker_cache():
+    if hasattr(environment.is_running_in_docker, 'cache_clear'):
+        environment.is_running_in_docker.cache_clear()
+    yield
+    if hasattr(environment.is_running_in_docker, 'cache_clear'):
+        environment.is_running_in_docker.cache_clear()
+
+
+def test_get_effective_base_url_lemonade_in_docker(monkeypatch):
+    monkeypatch.setattr(environment, 'is_running_in_docker', lambda: True)
+    result = environment.get_effective_llm_base_url('lemonade/example', None)
+    assert result == environment.LEMONADE_DOCKER_BASE_URL
+
+
+def test_get_effective_base_url_lemonade_outside_docker(monkeypatch):
+    monkeypatch.setattr(environment, 'is_running_in_docker', lambda: False)
+    base_url = 'http://localhost:8000/api/v1/'
+    result = environment.get_effective_llm_base_url('lemonade/example', base_url)
+    assert result == base_url
+
+
+def test_get_effective_base_url_non_lemonade(monkeypatch):
+    monkeypatch.setattr(environment, 'is_running_in_docker', lambda: True)
+    base_url = 'https://api.example.com'
+    result = environment.get_effective_llm_base_url('openai/gpt-4', base_url)
+    assert result == base_url