test: add pytest coverage for plan/burn cli

tests/test_plan_cli.py

@@ -0,0 +1,75 @@
+import json
+import subprocess
+from pathlib import Path
+
+import pytest
+
+ROOT = Path(__file__).resolve().parents[1]
+
+
+def write_inv(tmpdir, image_path, checksum):
+    inv = {
+        "classes": [
+            {
+                "name": "test-class",
+                "arch": "arm64",
+                "os": "testos",
+                "image": f"file://{image_path}",
+                "checksum": checksum,
+                "default_labels": {"role": "worker"},
+            }
+        ],
+        "nodes": [
+            {
+                "name": "node-a",
+                "class": "test-class",
+                "hostname": "node-a",
+                "ip": "10.0.0.10",
+                "k3s_role": "agent",
+            }
+        ],
+    }
+    inv_path = Path(tmpdir) / "inv.yaml"
+    inv_path.write_text(json.dumps(inv))
+    return inv_path
+
+
+def test_plan_output_contains_actions(tmp_path):
+    dummy = tmp_path / "dummy.img"
+    dummy.write_bytes(b"dummy")
+    import hashlib
+
+    checksum = "sha256:" + hashlib.sha256(dummy.read_bytes()).hexdigest()
+    inv_path = write_inv(tmp_path, dummy, checksum)
+    cache_dir = tmp_path / "cache"
+    cmd = ["go", "run", "./cmd/metis", "plan", "--inventory", str(inv_path), "--node", "node-a", "--device", "/dev/sdz", "--cache", str(cache_dir)]
+    out = subprocess.check_output(cmd, cwd=ROOT)
+    plan = json.loads(out)
+    assert plan["node"] == "node-a"
+    assert any(a["type"] == "fetch" for a in plan["actions"])
+
+
+def test_burn_dry_run(tmp_path):
+    dummy = tmp_path / "dummy.img"
+    dummy.write_bytes(b"dummy")
+    import hashlib
+
+    checksum = "sha256:" + hashlib.sha256(dummy.read_bytes()).hexdigest()
+    inv_path = write_inv(tmp_path, dummy, checksum)
+    cache_dir = tmp_path / "cache"
+    cmd = [
+        "go",
+        "run",
+        "./cmd/metis",
+        "burn",
+        "--inventory",
+        str(inv_path),
+        "--node",
+        "node-a",
+        "--device",
+        "/dev/sdz",
+        "--cache",
+        str(cache_dir),
+    ]
+    out = subprocess.check_output(cmd, cwd=ROOT, text=True)
+    assert "Dry run" in out or "Plan for" in out