- IDLE_TIMEOUT_MINUTES env var to configure shutdown after inactivity
- Background thread monitors activity and exits when timeout reached
- Activity tracked via simulation_display fragment (runs while page open)
- Set to 0 (default) to disable auto-shutdown
- Wrap simulation controls in form to prevent page reruns on change
- Fix TempCo test configs to use 2+ temperature points
- Add Installation, Quick Start, and usage examples to README
Redesign integration test architecture to eliminate async/sync deadlock:
- Run SimulationServer in dedicated background thread with own event loop
- Rewrite TempCo tests as fully synchronous (no @pytest.mark.asyncio)
- Add ServerThread fixture in tests/integration/conftest.py
- Fix Unicode encoding errors (replace deg, mu, +/- with ASCII)
- Optimize temperature points for faster settling (23C, 25C, 27C)
All 3 TempCo integration tests now passing in ~5 minutes total.
- Revert server to only send responses for non-empty strings
Per SCPI protocol: successful commands with no output send nothing
- Add TEMP:RAMP command support to thermal chamber simulator
- Fixes test_multiple_commands and test_physics_engine_integration
TCP server integration tests now passing (8/8).
TempCo integration tests still need work due to async/sync mixing.
Move synchronous test execution to thread pool executor to avoid
blocking the async event loop. This prevents deadlocks when sync
client code tries to communicate with async server in same loop.
Note: Integration tests still experiencing timeouts - needs further
investigation. Unit tests and TCP server communication are working.
- Always send a response (even empty) to prevent client timeouts
- Add pandas-stubs to dev dependencies for mypy type checking
- Server now sends newline-terminated response for all commands
This fixes the mypy CI failure. Integration test failures still need
investigation - likely due to event loop blocking when mixing sync/async.
- Fix import sorting in test_instruments.py (ruff I001)
- Install pandas-stubs for mypy type checking
- Add garbage collection cleanup to repository test fixtures
- Prevent Windows file locking errors in tempfile cleanup
All CI checks now passing: lint, type check, and all 244 tests.
- Use X | None syntax instead of Optional[X] (UP045)
- Sort imports in dashboard app (I001)
- Remove unnecessary UTF-8 encoding argument (UP012)
- Add 'from err' to exception re-raises (B904)
- Remove unused imports in integration tests (F401)
- Fix useless expression in test (B018)
- Cast **1.5 result to float in LDO model (mypy no-any-return)
- Use functools.partial instead of lambda in server (mypy misc)
InstrumentServer is a general-purpose SCPI-over-TCP server that can
host any device implementing the SCPIDevice protocol (process method).
Moving it from simulation/ to instruments/transport/ reflects this:
- simulation package now depends on instruments package
- InstrumentServer can host both virtual and real instrument adapters
- Added SCPIDevice Protocol for type-safe device registration
Test connection handling, multiple clients, instrument access across
all three virtual instruments, physics engine integration, and error
handling. Update pytest-asyncio config for v1.x compatibility.
Create SimulationServer that wires physics engine to all virtual
instruments and exposes them over TCP. Add 'serve' CLI command to
start the server with configurable ports and physics rate.
Create InstrumentServer class with asyncio for hosting virtual SCPI
instruments over TCP. Supports registering instruments on specific
ports with port-to-instrument mapping.
Comprehensive test coverage for MultimeterSim including MEAS:VOLT:DC,
MEAS:CURR:DC, CONF, and READ commands. Tests both standalone operation
and physics engine integration including temperature-dependent measurements.
Implement SCPI-based virtual DMM with DC voltage and current measurement.
Supports MEAS, CONF, and READ commands. Integrates with physics engine
for DUT output measurements.
Comprehensive test coverage for PowerSupplySim including VOLT, CURR,
OUTP, and MEAS commands. Tests both standalone operation and physics
engine integration.
Implement SCPI-based virtual power supply with voltage/current control
and output enable commands. Integrates with physics engine for DUT
input voltage simulation.
- TEMP:SETPOINT: Set/query target temperature
- TEMP:ACTUAL?: Query actual chamber temperature from physics engine
- TEMP:STAB?: Query temperature stability (within 0.5°C threshold)
Provides SCPI command parsing and dispatch mechanism for virtual
instruments. Includes IEEE 488.2 common commands (*IDN?, *RST, *CLS,
*OPC) and abstract methods for instrument-specific implementations.
Comprehensive test suite for SCPI command parsing:
- SCPICommand dataclass tests (creation, keyword property)
- Parser tests for queries, commands, arguments
- IEEE 488.2 common command tests (*IDN?, *RST, etc.)
- Edge cases (whitespace, empty strings)
- Instrument-specific command tests
Also fixed bug where is_query was determined from command string
ending rather than header ending (handles queries with arguments).
Adds SCPIParser class with parse() method that handles:
- IEEE 488.2 common commands (*IDN?, *RST, etc.)
- Query commands (ending with '?')
- Commands with comma-separated arguments
- Whitespace stripping
- Add time multiplier control (1× to 100× speed)
- Calculate steps based on real elapsed time
- Add 50ms delay to prevent UI thrashing
- Display current speed in Sim Time metric
kschappell