feat(integration-vm): vm naming, RAM guard, lease IP parsing

tests/test_integration_vm.py

@@ -9,3 +9,24 @@ _spec.loader.exec_module(ivm)
 
 def test_valid_tiers():
     assert ivm.VALID_TIERS == ("internal", "le-staging", "le-prod-wildcard")
+
+
+def test_vm_name_prefix_and_suffix():
+    assert ivm.vm_name("askari", "ab12cd34") == "boma-it-askari-ab12cd34"
+
+def test_vm_name_generates_suffix():
+    n = ivm.vm_name("askari")
+    assert n.startswith("boma-it-askari-") and len(n.split("-")[-1]) == 8
+
+def test_free_mib_parses_memavailable():
+    sample = "MemTotal:       16331156 kB\nMemAvailable:    8388608 kB\n"
+    assert ivm.free_mib(sample) == 8192
+
+def test_parse_lease_ip_extracts_ipv4():
+    out = (" Name       MAC address          Protocol     Address\n"
+           "-------------------------------------------------------------------\n"
+           " vnet0      52:54:00:aa:bb:cc    ipv4         192.168.150.42/24\n")
+    assert ivm.parse_lease_ip(out) == "192.168.150.42"
+
+def test_parse_lease_ip_none_when_absent():
+    assert ivm.parse_lease_ip("no leases\n") is None