test/case: Add meta/play

Launches an interactive ipython environment, attached to Infix nodes.
This can be used as a playground for developing tests, testing out
NETCONF operations, etc.

board/x86_64/board.mk

@@ -24,5 +24,8 @@ test-run: | ~/.infix-test-venv
 test-run-sh:
 	$(call test-env-run,/bin/sh)
 
+test-run-play:
+	$(call test-env-run,$(test-dir)/case/meta/play.py)
+
 ~/.infix-test-venv:
 	$(test-dir)/docker/init-venv.sh $(test-dir)/docker/pip-requirements.txt

test/case/meta/play.py

@@ -0,0 +1,19 @@
+#!/usr/bin/env -S ipython3 -i
+
+import json
+
+import infamy
+
+def jq(yangdata):
+    print(json.dumps(yangdata, indent=True))
+
+env = infamy.Env()
+
+ctrl = env.ptop.get_ctrl()
+infixen = env.ptop.get_infixen()
+for ix in infixen:
+    (_, cport), (_, ixport) = env.ptop.get_path(ctrl, ix)
+    print(f"Attaching to {ix}:{ixport} via {ctrl}:{cport}")
+    exec(f"{ix} = env.attach(\"{ix}\", \"{ixport}\")")
+
+print("\nGLHF")