From c235cb62beefd03087e7cfc7f7f55f0c7c6601c9 Mon Sep 17 00:00:00 2001
From: Lena <lena@omega>
Date: Sat, 1 Aug 2026 00:00:00 +0000
Subject: Enter vmm

A QEMU/KVM virtual machine manager in one POSIX shell script. Each
VM is a directory of plain files under $VMMDIR, configured by a
hand-edited KEY=VALUE file that is parsed rather than sourced, so
nothing in it can inject a raw QEMU argument.

Control is a QMP FIFO pair inside that directory, guarded by its
permissions alone; nothing binds a TCP port. The tests are TAP
without a framework and boot real guests where the host allows.
---
 tests/viewer | 44 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 tests/viewer

(limited to 'tests/viewer')

diff --git a/tests/viewer b/tests/viewer
new file mode 100644
index 0000000..f0357f0
--- /dev/null
+++ b/tests/viewer
@@ -0,0 +1,44 @@
+# The URI is the whole of what viewer decides, and VIEWER=echo reports
+# it without a client anywhere. The guests here are emulated.
+
+"$VMM" create vw1 64M >/dev/null 2>&1
+
+exits 2 "viewer of an unknown VM exits 2" viewer nosuchvm
+exits 3 "viewer of a stopped VM exits 3" viewer vw1
+
+cfg vw1 <<EOF
+MEM=256
+CPUS=1
+HWACCEL=no
+EOF
+if "$VMM" start vw1 >/dev/null 2>&1; then
+	refuses 'has no display' "GRAPHICS=no leaves nothing to view" viewer vw1
+	"$VMM" kill vw1 >/dev/null 2>&1 || :
+else
+	skip 1 "vw1 did not start"
+fi
+
+# The URI names the socket that is really there, not what the config
+# says, so a display that failed to appear is an error rather than a
+# client left dialling nothing.
+for g in vnc spice; do
+	cfg vw1 <<EOF
+MEM=256
+CPUS=1
+HWACCEL=no
+GRAPHICS=$g
+EOF
+	if ! "$VMM" start vw1 >/dev/null 2>&1; then
+		skip 2 "this qemu cannot do GRAPHICS=$g"
+		continue
+	fi
+	out=$(env VIEWER=echo "$VMM" viewer vw1 2>&1) && got=0 || got=$?
+	if [ "$got" = 0 ] && [ "$out" = "$g+unix://$VMMDIR/vw1/$g.sock" ]; then
+		ok "$g is handed to the client as $g+unix"
+	else
+		notok "$g is handed to the client as $g+unix" \
+			"exit $got, wanted $g+unix://$VMMDIR/vw1/$g.sock" "got: $out"
+	fi
+	"$VMM" kill vw1 >/dev/null 2>&1 || :
+	exits 3 "and the killed $g guest has nothing to view" viewer vw1
+done
-- 
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