Dockerfile.test

# Test image for running backend and frontend tests
# syntax=docker/dockerfile:1.7
FROM python:3.13-slim AS backend-test

WORKDIR /app

# Install system dependencies for testing
RUN apt-get update && apt-get install -y --no-install-recommends \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Install Python dependencies including test dependencies.
# BuildKit cache mount makes subsequent builds re-use the pip download
# cache so the second build only does install work — the slow ~60-90s
# fetch step from the first build becomes ~5s. Requires DOCKER_BUILDKIT=1
# (already set in test_docker.sh).
COPY requirements.txt ./
COPY requirements-dev.txt ./
RUN --mount=type=cache,target=/root/.cache/pip \
    pip install -r requirements.txt -r requirements-dev.txt

# Copy backend code
COPY backend/ ./backend/
COPY pyproject.toml ./

# Embedded GCode viewer assets — required so the @app.get("/gcode-viewer/...")
# packaging-regression test in tests/integration/test_gcode_viewer.py actually
# runs instead of pytest-skipping with "index.html not present". Path matches
# the production Dockerfile (static_dir.parent / "gcode_viewer" = /app/gcode_viewer/).
COPY gcode_viewer/ ./gcode_viewer/

# Create necessary directories
RUN mkdir -p /app/data /app/logs /app/archive

# Environment variables for testing
ENV PYTHONUNBUFFERED=1
ENV DATA_DIR=/app/data
ENV TESTING=1

# Test image runs pytest and exits — there is no long-running service
# to probe. HEALTHCHECK NONE is the documented Docker opt-out and
# silences Trivy DS-0026 without adding meaningless probe logic.
HEALTHCHECK NONE

# Default command runs pytest (excluding docker integration tests).
# -v dropped: 5300+ "PASSED foo::bar" lines per worker eat noticeable
# stdout I/O time and clutter test_docker.sh output. --tb=short still
# gives full failure tracebacks when something breaks.
# -n auto adapts to the host's vCPU count instead of hard-coding 30 —
# on a 2-vCPU CI / VM runner, -n 30 spawns 30 Python processes fighting
# for 2 cores, which is mostly IPC + import-thrash overhead.
CMD ["pytest", "backend/tests/", "--tb=short", "-p", "no:cacheprovider", "-n", "auto"]

# -------------------------------------------
# Frontend test stage
FROM node:22-bookworm-slim AS frontend-test

WORKDIR /app/frontend

# Copy package files and install
COPY frontend/package*.json ./
RUN npm ci

# Copy frontend source
COPY frontend/ ./

# Default command runs tests
CMD ["npm", "test", "--", "--run"]