test: add unit tests for core, parser and operations

tests/test_config.py

@@ -0,0 +1,32 @@
+from __future__ import annotations
+
+from pathlib import Path
+
+from sshctl.core.config import SshctlConfig, load_config
+
+
+def test_default_config() -> None:
+    config = SshctlConfig()
+    assert config.ssh_dir == Path("~/.ssh").expanduser()
+    assert config.config_file == "config"
+    assert config.verbose is False
+    assert config.timeout == 10
+
+
+def test_config_env_prefix() -> None:
+    assert SshctlConfig.model_config["env_prefix"] == "SSHCTL_"
+
+
+def test_ssh_config_path() -> None:
+    config = SshctlConfig(ssh_dir=Path("/tmp/.ssh"))
+    assert config.ssh_config_path() == Path("/tmp/.ssh/config")
+
+
+def test_conf_d_path() -> None:
+    config = SshctlConfig(ssh_dir=Path("/tmp/.ssh"))
+    assert config.conf_d_path() == Path("/tmp/.ssh/conf.d")
+
+
+def test_load_config_nonexistent() -> None:
+    config = load_config(Path("/nonexistent/sshctl.yaml"))
+    assert isinstance(config, SshctlConfig)