Anvil v1.0.0 -- Arduino build tool with HAL and test scaffolding

Single-binary CLI that scaffolds testable Arduino projects, compiles,
uploads, and monitors serial output. Templates embed a hardware
abstraction layer, Google Mock infrastructure, and CMake-based host
tests so application logic can be verified without hardware.

Commands: new, doctor, setup, devices, build, upload, monitor
39 Rust tests (21 unit, 18 integration)
Cross-platform: Linux and Windows

templates/basic/test/run_tests.sh

@@ -0,0 +1,73 @@
+#!/usr/bin/env bash
+#
+# run_tests.sh -- Build and run host-side unit tests
+#
+# Usage:
+#   ./test/run_tests.sh              Build and run all tests
+#   ./test/run_tests.sh --clean      Clean rebuild
+#   ./test/run_tests.sh --verbose    Verbose test output
+#
+# Prerequisites:
+#   cmake >= 3.14, g++ or clang++, git (for fetching gtest)
+#
+# First run will download Google Test (~30 seconds).
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+BUILD_DIR="$SCRIPT_DIR/build"
+
+# Color output
+if [[ -t 1 ]]; then
+    RED=$'\033[0;31m'; GRN=$'\033[0;32m'; CYN=$'\033[0;36m'
+    BLD=$'\033[1m';    RST=$'\033[0m'
+else
+    RED=''; GRN=''; CYN=''; BLD=''; RST=''
+fi
+
+info() { echo -e "${CYN}[TEST]${RST}  $*"; }
+ok()   { echo -e "${GRN}[PASS]${RST}  $*"; }
+die()  { echo -e "${RED}[FAIL]${RST}  $*" >&2; exit 1; }
+
+DO_CLEAN=0
+VERBOSE=""
+
+for arg in "$@"; do
+    case "$arg" in
+        --clean)   DO_CLEAN=1 ;;
+        --verbose) VERBOSE="--verbose" ;;
+        *)         die "Unknown option: $arg" ;;
+    esac
+done
+
+command -v cmake &>/dev/null || die "cmake not found. Install: sudo apt install cmake"
+command -v g++ &>/dev/null || command -v clang++ &>/dev/null || die "No C++ compiler found"
+command -v git &>/dev/null || die "git not found (needed to fetch Google Test)"
+
+if [[ $DO_CLEAN -eq 1 ]] && [[ -d "$BUILD_DIR" ]]; then
+    info "Cleaning build directory..."
+    rm -rf "$BUILD_DIR"
+fi
+
+if [[ ! -f "$BUILD_DIR/CMakeCache.txt" ]]; then
+    info "Configuring (first run will fetch Google Test)..."
+    cmake -S "$SCRIPT_DIR" -B "$BUILD_DIR" -DCMAKE_BUILD_TYPE=Debug
+fi
+
+info "Building tests..."
+cmake --build "$BUILD_DIR" --parallel
+
+echo ""
+info "${BLD}Running tests...${RST}"
+echo ""
+
+CTEST_ARGS=("--test-dir" "$BUILD_DIR" "--output-on-failure")
+[[ -n "$VERBOSE" ]] && CTEST_ARGS+=("--verbose")
+
+if ctest "${CTEST_ARGS[@]}"; then
+    echo ""
+    ok "${BLD}All tests passed.${RST}"
+else
+    echo ""
+    die "Some tests failed."
+fi