feat(console): list/regex read_until, serial error clarity; v0.3

read_until:
- 'expected' now accepts a list of values (succeeds on any match).
- new 'regex: true' flag: each pattern is a Python regex (re.search over a
  bounded tail, Console.REGEX_WINDOW). Reports which pattern matched.

Serial console robustness & clarity:
- failed open() raises a clear ETUMRuntimeError ("Serial device '…' does not
  exist." / permission hint) instead of a raw pyserial traceback.
- a console whose open failed is safely "not open" (init _thd=None +
  isOpened guards in readchar/read_nowait/close) — no more cascading
  AttributeError: '_thd' on subsequent read steps.
- action handlers: one-liner for expected (ETUMRuntimeError) errors, full
  traceback kept for unexpected ones. All console errors use testium
  exceptions (ETUMRuntimeError).

Flatpak: grant --device=all so serial adapters (/dev/ttyUSB*, /dev/ttyACM*)
are visible in the sandbox.

Validation: new read_until list/regex (match + no-match) cases in
items/console/test.tum.

Version: 0.3.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

DESIGN.md

@@ -302,6 +302,7 @@ The `testium_assist` editor extension is a thin LSP client that spawns `testium
 Both Flatpak and AppImage export `TESTIUM_VERSION` from a launcher (Flatpak: launcher script in `org.testium.Testium.yaml`; AppImage: `runtime.env` in `AppImageBuilder.yml`). `get_testium_version()` checks `/.flatpak-info` / `APPIMAGE` and reads `TESTIUM_VERSION` rather than relying on package metadata or repo introspection.
 
 ## Recent fixes / notable changes
+- `console` item — serial robustness + richer `read_until`: (1) a failed serial `open()` now raises a clear `ETUMRuntimeError` ("Serial device '…' does not exist." / permission hint) instead of dumping a pyserial traceback, and a console whose open failed is safely "not open" (init `_thd=None` + `isOpened` guards in `readchar`/`read_nowait`/`close`) so later reads no longer crash with `AttributeError: '_thd'`; the action handlers show a one-liner for expected (`ETUMRuntimeError`) errors and keep the full traceback for unexpected ones. (2) `read_until`'s `expected` now accepts a **list of values** (match any) and a new `regex: true` flag treats each pattern as a Python regex (`re.search` over a bounded tail — `Console.REGEX_WINDOW`; limitation: cost/memory bounded, so a match only after a very long stream or beyond the window won't fire). Flatpak manifest now grants `--device=all` so serial adapters (`/dev/ttyUSB*`, `/dev/ttyACM*`) are visible in the sandbox. Validation: new `read_until` list/regex cases in `test/validation/items/console/test.tum`.
 - Subprocess RPC startup handshake: the `py_func`/`lua_func`/`eval_proc` worker now picks its own port (`bind 0`), announces it on stdout (`__TESTIUM_RPC_PORT__=`), and the parent connects only after reading it. Fixes intermittent Windows `failed to connect : timeout` and the matching `wait_ready()` hang; removes the reserve/close/rebind race and `SO_REUSEADDR`. See "Subprocess RPC startup handshake".
 - `build_all.sh`: builds the four heavy channels in parallel (serial prep for the shared venv + wheel), results in completion order, Ctrl+C kills the whole job tree; `--ram` puts the build scratch on tmpfs (`/dev/shm`) + skips UPX for fast builds on USB/SD storage (Flatpak excluded — rofiles-fuse can't mount tmpfs). See the "Building all channels" section.
 - LSP across packaging channels: `testium lsp` (and the `testium_assist` editor extension that spawns it) now works from source, wheel, PyInstaller, Flatpak and AppImage. Two enablers — (1) action items declare a class-level `ACTIONS = {key: class}` registry (like `PARAMS`), so `lsp/schema.py` builds the full schema from class attributes with no `inspect.getsource`/AST (which broke under frozen PyInstaller); (2) the `[lsp]` extra (pygls) is wired into every full-app channel. `test/validation/lsp_check.py`, run by `run.sh` before the suite, asserts per-channel that `schema` keeps its actions and `lsp` answers `initialize`. See the matching architecture sections.

package/flatpak/org.testium.Testium.yaml

@@ -11,7 +11,11 @@ finish-args:
   - --share=ipc
   - --socket=fallback-x11
   - --socket=wayland
-  - --device=dri
+  # Expose all host devices to the sandbox. testium is a hardware-in-the-loop
+  # test tool: the console item must reach serial adapters (/dev/ttyUSB*,
+  # /dev/ttyACM*, …) which are otherwise invisible in the sandbox. --device=all
+  # also covers the GPU (supersedes --device=dri).
+  - --device=all
   - --share=network
   - --filesystem=home
   - --filesystem=/tmp

src/VERSION

@@ -1 +1 @@
-0.2.3
+0.3

src/testium/api/console.py

@@ -2,6 +2,7 @@ from datetime import datetime
 import sys
 import os
 import re
+import errno
 from queue import Queue, Empty
 from time import sleep
 import collections
@@ -10,6 +11,8 @@ import threading
 
 from telnetlib3 import Telnet, DO, WILL, WONT, TTYPE, IAC, SB, SE, theNULL
 
+from runtime.tum_except import ETUMRuntimeError
+
 TIMEOUT_NULL = 0.000001
 STOP_POLL_INTERVAL = 0.2
 
@@ -124,7 +127,32 @@ A {classname}.close() is missing somewhere in your code !'.format(classname=type
         #    c = ''
         return c
 
-    def read_until(self, match, timeout=None, return_data=False, mute=False, should_stop=None):
+    # Upper bound (in characters) of the accumulated buffer tail scanned in
+    # regex mode, so cost/memory stay bounded on long-running streams.
+    REGEX_WINDOW = 65536
+
+    def _feed_match(self, data, search_deques, match_deques, matches):
+        """Append *data* to every rolling window and return the first matched
+        pattern string, or None if none completed on this character."""
+        matched = None
+        for sd, md, m in zip(search_deques, match_deques, matches):
+            sd.append(data)
+            if matched is None and sd == md:
+                matched = m
+        return matched
+
+    def _search_regex(self, read_data, compiled):
+        """Search the (bounded) tail of *read_data* with each compiled regex;
+        return the matched text of the first hit, or None."""
+        tail = read_data[-self.REGEX_WINDOW:]
+        for p in compiled:
+            m = p.search(tail)
+            if m is not None:
+                return m.group(0)
+        return None
+
+    def read_until(self, match, timeout=None, return_data=False, mute=False,
+                   should_stop=None, regex=False):
         """
         read until the string 'match is found
             If timeout is not set (None), this function runs indefinitely
@@ -141,15 +169,37 @@ A {classname}.close() is missing somewhere in your code !'.format(classname=type
         read_data = ''
         status = -1
         if not match:
-            raise ValueError('match parameter can not be empty')
+            raise ETUMRuntimeError("'expected' pattern can not be empty")
+
+        # match may be a single string or a list/tuple of strings: the read
+        # succeeds as soon as ANY of them is seen in the stream.
+        if isinstance(match, (list, tuple)):
+            matches = [str(m) for m in match]
+        else:
+            matches = [str(match)]
+        if (not matches) or any(len(m) == 0 for m in matches):
+            raise ETUMRuntimeError("'expected' pattern can not be empty")
 
         if timeout is None:
             timeout = 1000000
 
-        # Fixed-length queue that will contain the readout characters
+        compiled = None
-        search_deque = collections.deque(maxlen=len(match))
+        search_deques = match_deques = None
-        # convert match string into a deque for faster comparisons
+        if regex:
-        match_deque = collections.deque(match)
+            # 'matches' are regular expressions; succeed on the first hit.
+            compiled = []
+            for m in matches:
+                try:
+                    compiled.append(re.compile(m))
+                except re.error as e:
+                    raise ETUMRuntimeError(
+                        "Invalid regular expression {!r}: {}".format(m, e)) from None
+        else:
+            # One fixed-length rolling window per match pattern, compared
+            # against the corresponding pattern deque.
+            search_deques = [collections.deque(maxlen=len(m)) for m in matches]
+            match_deques = [collections.deque(m) for m in matches]
+        self._matched = None
 
         # In case of a timeout equal to zero, it must be looped until the
         # buffer is empty
@@ -167,9 +217,13 @@ A {classname}.close() is missing somewhere in your code !'.format(classname=type
                         self.string_buffer += data
                     read_data += data
 
-                    search_deque.append(data)
+                    if regex:
-                    if search_deque == match_deque:
+                        matched = self._search_regex(read_data, compiled)
+                    else:
+                        matched = self._feed_match(data, search_deques, match_deques, matches)
+                    if matched is not None:
                         status = 0
+                        self._matched = matched
                         if (not mute) and (data != '\n'):
                             self.string_buffer += '\n'
 
@@ -210,9 +264,13 @@ A {classname}.close() is missing somewhere in your code !'.format(classname=type
                                 self.string_buffer += data
                             read_data += data
 
-                            search_deque.append(data)
+                            if regex:
-                            if search_deque == match_deque:
+                                matched = self._search_regex(read_data, compiled)
+                            else:
+                                matched = self._feed_match(data, search_deques, match_deques, matches)
+                            if matched is not None:
                                 status = 0
+                                self._matched = matched
                                 if (not mute) and (data != '\n'):
                                     self.string_buffer += '\n'
 
@@ -407,20 +465,35 @@ class SerialConsole(Console):
             self.stop = threading.Event()
         self.port = None
         self.port_id = port
+        self._thd = None
 
     def open(self):
+        try:
             self.port = serial.Serial(port=self.port_id,
                                       baudrate=self.baudrate,
                                       stopbits=self.stopbits,
                                       parity=self.parity,
                                       xonxoff=self.xonxoff,
                                       timeout=None)
+        except (serial.SerialException, OSError) as e:
+            raise ETUMRuntimeError(self._open_error_message(e)) from None
         self.isOpened = True
         if self.bufferize:
             self.port.timeout = 2
             self._thd = threading.Thread(target=self.read_thread)
             self._thd.start()
 
+    def _open_error_message(self, exc):
+        """Build a short, direct message for a failed serial open."""
+        errno_ = getattr(exc, "errno", None)
+        if errno_ == errno.ENOENT:
+            return "Serial device '{}' does not exist.".format(self.port_id)
+        if errno_ == errno.EACCES:
+            return ("Permission denied opening serial device '{}' "
+                    "(is your user allowed to access it, e.g. 'dialout' group?)."
+                    .format(self.port_id))
+        return "Could not open serial device '{}': {}".format(self.port_id, exc)
+
     def read_thread(self):
         while not self.stop.is_set():
             c = self.port.read(1)
@@ -428,7 +501,7 @@ class SerialConsole(Console):
                 self.rx_queue.put(c)
 
     def close(self):
-        if self.bufferize:
+        if self.bufferize and self._thd is not None:
             self.stop.set()
             self._thd.join()
         if self.port is not None:
@@ -440,10 +513,12 @@ class SerialConsole(Console):
             self.port.timeout = timeout
 
     def readchar(self, timeout):
+        if not self.isOpened:
+            raise ETUMRuntimeError("Serial console '{}' is not open".format(self.name))
         if self.bufferize:
             if not self._thd.is_alive() and not self.stop.isSet():
-                raise RuntimeError(
+                raise ETUMRuntimeError(
-                    "Impossible to read the serial console, it may be already openned")
+                    "Impossible to read the serial console, it may be already opened")
             if timeout < TIMEOUT_NULL:
                 return self.rx_queue.get(block=False)
             else:
@@ -455,10 +530,12 @@ class SerialConsole(Console):
         self.port.flush()
 
     def read_nowait(self, mute=False):
+        if not self.isOpened:
+            raise ETUMRuntimeError("Serial console '{}' is not open".format(self.name))
         if self.bufferize:
             if not self._thd.is_alive() and not self.stop.isSet():
-                raise RuntimeError(
+                raise ETUMRuntimeError(
-                    "Impossible to read the serial console, it may be already openned")
+                    "Impossible to read the serial console, it may be already opened")
             st = self.rx_queue.getAll().decode(self.encoding, errors='replace')
             if not mute:
                 date_str = str(datetime.now()).split('.')[0].split(' ')[1]

src/testium/interpreter/test_items/test_item_console.py

@@ -4,7 +4,7 @@ import importlib
 import traceback
 
 import api.testium as tm
-from runtime.tum_except import ETUMSyntaxError
+from runtime.tum_except import ETUMSyntaxError, ETUMRuntimeError
 from runtime.stdout_redirect import stdio_redir
 from interpreter.test_items.test_item import test_run
 from interpreter.test_items.item_actions import TestItemActions
@@ -225,12 +225,17 @@ class TestItemConsoleOpen(TestItemConsoleAction):
             tm.add_console(cons)
             cons.open()
             self.result.set(TestValue.SUCCESS)
+        except ETUMRuntimeError as e:
+            # Expected, user-facing console error (device missing, no permission,
+            # …): report a single clear line, no traceback.
+            msg = "Impossible to open the console '{}': {}".format(cname, e._message)
+            self.result.set(result=TestValue.FAILURE, message=msg)
+            print(msg)
         except Exception as e:
+            # Unexpected error: keep the full traceback for diagnosis.
             self.result.set(
                 result=TestValue.FAILURE,
-                message="Impossible to open the console ({}) (exception: {})".format(
+                message="Impossible to open the console '{}': {}".format(cname, e),
-                    cname, e
-                ),
             )
             traceback.print_exception(*sys.exc_info())
 
@@ -319,12 +324,17 @@ class TestItemConsoleReadUntil(TestItemConsoleAction):
 
     PARAMS = ParamSet(
         Param("expected", required=True,
-              doc="Regex matched against incoming console output until found "
+              doc="Literal string — or a list of strings — matched against the "
-                  "or until timeout."),
+                  "incoming console output. The read succeeds as soon as one of "
+                  "them is seen, or fails on timeout."),
         Param("timeout", default=-1,
               doc="Seconds before giving up. Negative means infinite."),
         Param("mute", default=False,
               doc="If true, don't echo received bytes to testium's stdout/log."),
+        Param("regex", default=False,
+              doc="If true, each 'expected' entry is treated as a Python "
+                  "regular expression (searched, not anchored) instead of a "
+                  "literal string."),
     )
 
     def __init__(
@@ -343,16 +353,21 @@ class TestItemConsoleReadUntil(TestItemConsoleAction):
     @test_run
     def execute(self):
         cons = self.get_console()
+        # 'expected' may be a single value or a list of values (match any).
+        if isinstance(self._read_until, (list, tuple)):
+            ru = [self._prms.expanse(m) for m in self._read_until]
+        else:
             ru = self._prms.expanse(self._read_until)
         read_timeout = int(self._prms.getParam("timeout", default=-1, processed=True))
         mute = self._prms.getParam("mute", default=False, processed=True)
+        use_regex = self._prms.getParam("regex", default=False, processed=True)
         if read_timeout < 0:
             read_timeout = None
 
         try:
             status, data = cons.read_until(
                 ru, timeout=read_timeout, return_data=True, mute=mute,
-                should_stop=self.isStopped,
+                should_stop=self.isStopped, regex=bool(use_regex),
             )
             if status == 0:
                 self.result.set(TestValue.SUCCESS)
@@ -364,14 +379,21 @@ class TestItemConsoleReadUntil(TestItemConsoleAction):
                 )
             else:
                 self.result.set(result=TestValue.FAILURE, message="No matching text")
-            if mute:
+            reported = {"data": "" if mute else data}
-                self.result.reported = {"data": ""}
+            # When several patterns were given, expose which one matched.
-            else:
+            if status == 0 and isinstance(ru, (list, tuple)):
-                self.result.reported = {"data": data}
+                reported["matched"] = getattr(cons, "_matched", None)
+            self.result.reported = reported
             # The result is put in global dir
             tm.setgd("cn_" + self.parent()._name, data)
 
-        except:
+        except ETUMRuntimeError as e:
+            # Expected console error (e.g. console not open): clear one-liner.
+            msg = f"Console '{self.token['console_name']}': impossible to read ({e._message})"
+            self.result.set(result=TestValue.FAILURE, message=msg)
+            print(msg)
+        except Exception:
+            # Unexpected error: keep the full traceback for diagnosis.
             print(traceback.format_exc())
             self.result.set(
                 result=TestValue.FAILURE,

test/validation/items/console/test.tum

@@ -105,6 +105,46 @@
         - read_until: {expected: console_host_check_HOST, timeout: 5}
 {% endif %}
 
+# --- read_until matching a list of values (succeeds on any) ---
+- console:
+    name: Console read_until list match any
+    console_name: term
+    key: $(test)_PASS
+    steps:
+        - writeln: echo "list_marker_B"
+        - read_until: {expected: [list_marker_A, list_marker_B, list_marker_C], timeout: 5}
+
+- console:
+    name: Console read_until list no match
+    console_name: term
+    key: $(test)_FAIL
+    steps:
+        - read_until: {expected: [never_marker_A, never_marker_B], timeout: 1}
+
+# --- read_until with regular expressions ---
+- console:
+    name: Console read_until regex
+    console_name: term
+    key: $(test)_PASS
+    steps:
+        - writeln: echo "regex_val_4242_end"
+        - read_until: {expected: 'regex_val_\d+_end', regex: true, timeout: 5}
+
+- console:
+    name: Console read_until regex list any
+    console_name: term
+    key: $(test)_PASS
+    steps:
+        - writeln: echo "STATUS=ready"
+        - read_until: {expected: ['ERR:.*', 'STATUS=(ready|busy)'], regex: true, timeout: 5}
+
+- console:
+    name: Console read_until regex no match
+    console_name: term
+    key: $(test)_FAIL
+    steps:
+        - read_until: {expected: 'never_\d{4}', regex: true, timeout: 1}
+
 - console:
     name: Console closure
     execute_on_stop: true