forgetest tests: the confirmed trims of the tool's own unit tests

The cases that tested a mock, a timer, a wording or a table, or that
replayed a judgment a host test already holds, leave forgetest/tests.
What catches a false PASS, keeps the bench safe, or guards the gate
stays.

- test_baseline: the fake sysfs tree is a mixin with no test_ methods,
  so ExtensionFreeTests and BaselineModeTests no longer re-run
  BaselineTests' 25 cases (133 runs, now 45). CoolPublishTests, the
  lamp-fade cases and TransientNotLeftoverTests go; PositionDeadbandTests
  keeps a reading past the band and an unreadable reading, both never
  excused. Both latch-relock cases stay.
- test_fixture: MdnsTests, the three timing cases, the probe's log
  wording, and nine prompt-routing variants go. A live test never runs
  unattended, the arm-press opt-in, the short-press edge, the presence
  press handing over the arm press, and the arm notice dropping at the
  press stay (35 cases, now 21).
- test_cloud_suite: three false-PASS guards stay: the latch open at a
  dark print's button, a lid stop that is not edge-driven, the kernel
  refusing the resume. The guards for the latch unlocking in the hold
  and a paused print resuming left with their catalog tests in 6a434bb.
  The rest go, with the harness pieces and the hunt-lid fixture only
  they read (41 cases, now 3).
- test_cooling_suite: GateOffTests, CriticalTierTests, FanGateTests and
  FansQuietTests go with their harness; the flow verdict's log reads
  stay: only the text after the offset, never an older verdict before it
  (the flow-under-load false-PASS guard), a rotated log read whole.
- test_queue: RunClockTests and three ordering cases go, and refusals
  are judged by a reason given, not its words; both live
  acknowledgment cases stay.
- test_takeover_position: the six cases that judge the head and move
  nothing stay.
- test_camera_home_return: the five cases where the head must not move
  stay, and so do the three that check the hand-back jog's direction and
  distance (homed, unhomed with the counters not counted twice, after
  cloud mode): a wrong sign or a double count drives the head into the
  gantry stops (15 cases, now 8).
- test_server: the keep-alive and ETag cases, the takeover and scope
  half of the bench case, and the page's self-contained asserts
  (test_page.py's) go.
- test_operator: the wording cases, the fixture case (test_fixture.py's)
  and JournalTests go.
- test_mode: the supervisor timeout table goes.
- test_takeover_client: the listener, the offline service back, the
  online client without the hunt, and GRBL under no marker stay.
- test_responsiveness: PageTests and ImplementationCostTests go; the
  log cache keeps appends, a partial line, a replaced file and a fresh
  list, and the fingerprint cache a changed manifest and one with no
  content hash.
- test_bench_registry: GfbenchTests and two description and argument
  pins go.
- test_installer: the log-format and TLS-wording cases and
  InstallerShapeTests go; the die case checks the reason is in the log,
  not its format.
- test_image: KernelIdentTests and the registration pin go.

Each file's __main__ guard now ends the file, and the docstrings say what
each still proves.

Proof: each of the fifteen files passes under Linux as forgetest-ci
discovers it, and pyflakes reports nothing new in them.

Acceptance: none; test-only.

forgetest/tests/test_bench_registry.py

@@ -5,13 +5,11 @@
 
 """The bench registry against scripts/bench: every python tool is
 registered (or named as not-a-tool), every registered script exists,
-every argument spec builds a command line, every script compiles, and
-the shared helper resolves host and local mode as documented."""
+a ported tool builds a command line with its defaults, and every
+script compiles."""
 import glob
 import os
 import py_compile
-import subprocess
-import sys
 import unittest
 
 import helpers  # noqa: F401  (sys.path)
@@ -56,78 +54,10 @@ class RegistryTests(unittest.TestCase):
             self.assertTrue(ok, "%s: %s" % (t["id"], err))
             self.assertEqual(argv[1], os.path.join(BENCH, t["script"]))
 
-    def test_flagged_args_build_option_pairs(self):
-        tool = next(t for t in bench_mod.TOOLS if t["id"] == "resume-dark-lead")
-        ok, argv, err = self.bench.command(tool, {"run": "live", "feed": 900})
-        self.assertTrue(ok, err)
-        self.assertIn("--run", argv)
-        self.assertEqual(argv[argv.index("--run") + 1], "live")
-        self.assertEqual(argv[argv.index("--feed") + 1], "900.0")
-        # an empty optional with an empty default is left off entirely
-        self.assertNotIn("--auto", argv)
-        # a choice outside the list is refused before anything runs
-        ok, _argv, err = self.bench.command(tool, {"run": "sideways"})
-        self.assertFalse(ok)
-        self.assertIn("run must be one of", err)
-
-    def test_unported_tools_are_host_only(self):
-        # what stays unported is what cannot run on the machine at all
-        for t in bench_mod.TOOLS:
-            if not t["ported"]:
-                self.assertEqual(t["where"], "host", t["id"])
-                self.assertIn("not a bench-page tool", t["desc"], t["id"])
-
     def test_scripts_compile(self):
         for s in self.scripts:
             py_compile.compile(os.path.join(BENCH, s), doraise=True)
 
 
-class GfbenchTests(unittest.TestCase):
-    """gfbench.py in a subprocess (module-level host resolution)."""
-
-    def run_snippet(self, code, env_extra):
-        env = dict(os.environ)
-        env.pop("GF_HOST", None)
-        env.pop("FORGETEST_BENCH_DATA", None)
-        env.update(env_extra)
-        r = subprocess.run([sys.executable, "-c", code], cwd=BENCH, env=env,
-                           stdout=subprocess.PIPE, stderr=subprocess.STDOUT, text=True, timeout=30)
-        return r.returncode, r.stdout.strip()
-
-    def test_host_mode(self):
-        rc, out = self.run_snippet("import gfbench; print(gfbench.HOST, gfbench.LOCAL, gfbench.SSH[0])",
-                                   {"GF_HOST": "192.0.2.7", "GF_SSH": "fakessh -x"})
-        self.assertEqual(rc, 0, out)
-        self.assertEqual(out, "192.0.2.7 False fakessh")
-
-    def test_local_when_named_local(self):
-        rc, out = self.run_snippet("import gfbench; print(gfbench.HOST, gfbench.LOCAL); "
-                                   "print(gfbench.board('echo hi').strip())",
-                                   {"GF_HOST": "127.0.0.1"})
-        self.assertEqual(rc, 0, out)
-        self.assertEqual(out.splitlines(), ["127.0.0.1 True", "hi"])
-
-    def test_refuses_without_a_machine(self):
-        if os.path.isdir("/sys/glowforge"):
-            self.skipTest("running on the machine")
-        rc, out = self.run_snippet("import gfbench", {})
-        self.assertNotEqual(rc, 0)
-        self.assertIn("GF_HOST", out)
-
-    def test_degc_and_data_dir(self):
-        import tempfile
-        d = tempfile.mkdtemp(prefix="forgetest-bench-")
-        rc, out = self.run_snippet(
-            "import gfbench, os; print(round(gfbench.degc(700), 2), gfbench.degc('x') != gfbench.degc('x'), "
-            "os.path.dirname(gfbench.data_path('f.json')) == os.environ['FORGETEST_BENCH_DATA'])",
-            {"GF_HOST": "127.0.0.1", "FORGETEST_BENCH_DATA": d})
-        self.assertEqual(rc, 0, out)
-        val, nan, indir = out.split()
-        # a plausible coolant reading (700 counts is room temperature territory)
-        self.assertTrue(15.0 < float(val) < 35.0, val)
-        self.assertEqual(nan, "True")
-        self.assertEqual(indir, "True")
-
-
 if __name__ == "__main__":
     unittest.main()