Add comprehensive tests, coverage 21% → 74%

uv.lock

@@ -490,6 +490,18 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/f1/12/de94a39c2ef588c7e6455cfbe7343d3b2dc9d6b6b2f40c4c6565744c873d/pyyaml-6.0.3-cp314-cp314t-win_arm64.whl", hash = "sha256:ebc55a14a21cb14062aa4162f906cd962b28e2e9ea38f9b4391244cd8de4ae0b", size = 149341, upload-time = "2025-09-25T21:32:56.828Z" },
 ]
 
+[[package]]
+name = "respx"
+version = "0.22.0"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "httpx" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/f4/7c/96bd0bc759cf009675ad1ee1f96535edcb11e9666b985717eb8c87192a95/respx-0.22.0.tar.gz", hash = "sha256:3c8924caa2a50bd71aefc07aa812f2466ff489f1848c96e954a5362d17095d91", size = 28439, upload-time = "2024-12-19T22:33:59.374Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/8e/67/afbb0978d5399bc9ea200f1d4489a23c9a1dad4eee6376242b8182389c79/respx-0.22.0-py2.py3-none-any.whl", hash = "sha256:631128d4c9aba15e56903fb5f66fb1eff412ce28dd387ca3a81339e52dbd3ad0", size = 25127, upload-time = "2024-12-19T22:33:57.837Z" },
+]
+
 [[package]]
 name = "rich"
 version = "14.3.0"
@@ -578,6 +590,7 @@ dev = [
     { name = "pre-commit" },
     { name = "pytest" },
     { name = "pytest-cov" },
+    { name = "respx" },
     { name = "ruff" },
 ]
 
@@ -596,6 +609,7 @@ dev = [
     { name = "pre-commit", specifier = ">=3.6" },
     { name = "pytest", specifier = ">=8.0" },
     { name = "pytest-cov", specifier = ">=4.1" },
+    { name = "respx", specifier = ">=0.22.0" },
     { name = "ruff", specifier = ">=0.9.0" },
 ]