340 lines
11 KiB
Shell
340 lines
11 KiB
Shell
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#!/bin/bash
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# GAL WebGL Regression Test - Monitoring Script
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# ==============================================
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# Single entry point for WebGL GAL testing.
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# Always does a clean build, then runs tests and compares against baseline.
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#
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# Purpose: Detect regressions during WebGL GAL migration to KiCad.
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# Strategy: Lock in current rendering behavior as baseline, then monitor
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# for any changes as we integrate WebGL GAL into KiCad build.
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#
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# Usage:
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# ./scripts/test-gal-webgl.sh # Clean build and test (default)
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# ./scripts/test-gal-webgl.sh -v # Verbose output
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# Redirect all output to a log file (re-execs script with redirection)
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source "$(dirname "$0")/common/logging.sh"
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set -e
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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PROJECT_ROOT="$(dirname "$SCRIPT_DIR")"
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# Directories
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GAL_REGRESSION_DIR="$PROJECT_ROOT/tests/gal-regression"
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BASELINE_WEBGL_DIR="$GAL_REGRESSION_DIR/baseline-webgl"
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OUTPUT_DIR="$GAL_REGRESSION_DIR/output"
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WEBGL_OUTPUT_DIR="$OUTPUT_DIR/webgl"
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# Colors for output
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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BLUE='\033[0;34m'
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NC='\033[0m' # No Color
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# Parse arguments
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VERBOSE=""
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for arg in "$@"; do
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case $arg in
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-v|--verbose)
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VERBOSE="-v"
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;;
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esac
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done
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# ============================================================================
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# Helper Functions
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# ============================================================================
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log_header() {
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echo ""
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echo -e "${BLUE}════════════════════════════════════════════════════════════════${NC}"
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echo -e "${BLUE} $1${NC}"
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echo -e "${BLUE}════════════════════════════════════════════════════════════════${NC}"
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}
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log_step() {
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echo -e "${YELLOW}>>> $1${NC}"
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}
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log_success() {
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echo -e "${GREEN}✓ $1${NC}"
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}
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log_error() {
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echo -e "${RED}✗ $1${NC}"
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}
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# Compare WebGL output against baseline-webgl
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# Usage: compare_webgl_screenshots [threshold]
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# Returns 0 if match within threshold, 1 if different
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compare_webgl_screenshots() {
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local threshold="${1:-1.0}" # Default 1% difference allowed
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echo ""
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echo "Comparing WebGL output against baseline:"
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echo " Baseline: $BASELINE_WEBGL_DIR"
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echo " Current: $WEBGL_OUTPUT_DIR"
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echo " Threshold: ${threshold}% pixel difference"
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echo ""
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if [ ! -d "$BASELINE_WEBGL_DIR" ]; then
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log_error "Baseline directory not found: $BASELINE_WEBGL_DIR"
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log_step "Run full test suite first to create baseline: ./scripts/test-gal-regression.sh"
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return 1
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fi
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if [ ! -d "$WEBGL_OUTPUT_DIR" ]; then
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log_error "WebGL output directory not found: $WEBGL_OUTPUT_DIR"
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return 1
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fi
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# Check for ImageMagick
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if ! command -v compare &> /dev/null; then
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log_error "ImageMagick 'compare' command not found. Install with: brew install imagemagick"
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return 1
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fi
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local total=0
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local matching=0
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local different=0
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local missing=0
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# Create temp directory for normalized images
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local tmpdir=$(mktemp -d)
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trap "rm -rf '$tmpdir'" EXIT
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# Files to exclude from comparison (documented as broken/dead code)
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local excluded_files="gal-transform-api.png"
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# Compare all baseline screenshots
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for baseline in "$BASELINE_WEBGL_DIR"/*.png; do
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[ -e "$baseline" ] || continue # Handle no matches
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local filename=$(basename "$baseline")
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# Skip excluded files
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if echo "$excluded_files" | grep -q "$filename"; then
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if [ -n "$VERBOSE" ]; then
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echo " SKIPPED: $filename (excluded - see README.md)"
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fi
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continue
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fi
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local current="$WEBGL_OUTPUT_DIR/$filename"
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total=$((total + 1))
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if [ ! -f "$current" ]; then
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echo " MISSING: $filename"
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missing=$((missing + 1))
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continue
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fi
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# Get dimensions
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local baseline_dims=$(identify -format "%wx%h" "$baseline" 2>/dev/null)
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local current_dims=$(identify -format "%wx%h" "$current" 2>/dev/null)
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# If dimensions differ, resize current to match baseline
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local compare_file="$current"
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if [ "$baseline_dims" != "$current_dims" ]; then
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compare_file="$tmpdir/resized_$filename"
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convert "$current" -resize "$baseline_dims!" "$compare_file" 2>/dev/null
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if [ -n "$VERBOSE" ]; then
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echo " RESIZED: $filename ($current_dims -> $baseline_dims)"
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fi
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fi
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# Normalize both images to TrueColor RGB for consistent comparison
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local baseline_normalized="$tmpdir/baseline_$filename"
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local current_normalized="$tmpdir/current_$filename"
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convert "$baseline" -flatten -colorspace sRGB -type TrueColor "$baseline_normalized" 2>/dev/null
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convert "$compare_file" -flatten -colorspace sRGB -type TrueColor "$current_normalized" 2>/dev/null
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# Compare with fuzz factor (allows small pixel differences from anti-aliasing)
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# Use AE (Absolute Error) metric - counts differing pixels
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local compare_output=$(compare -metric AE -fuzz 2% "$baseline_normalized" "$current_normalized" null: 2>&1 || true)
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local diff_pixels=$(echo "$compare_output" | awk '{print $1}')
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# Handle scientific notation (e.g., 1.92e+06)
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if [[ "$diff_pixels" =~ [eE] ]]; then
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diff_pixels=$(printf "%.0f" "$diff_pixels")
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fi
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# Handle error cases (non-numeric output)
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if ! [[ "$diff_pixels" =~ ^[0-9]+\.?[0-9]*$ ]]; then
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echo " ERROR: $filename (comparison failed: $compare_output)"
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different=$((different + 1))
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continue
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fi
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# Calculate percentage
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local total_pixels=$(identify -format "%[fx:w*h]" "$baseline_normalized" 2>/dev/null)
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# Handle scientific notation
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if [[ "$total_pixels" =~ [eE] ]]; then
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total_pixels=$(printf "%.0f" "$total_pixels")
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fi
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if [ -z "$total_pixels" ] || [ "$total_pixels" = "0" ]; then
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total_pixels=1 # Avoid division by zero
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fi
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# Use awk for floating point arithmetic
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local diff_pct=$(awk "BEGIN {printf \"%.4f\", ($diff_pixels * 100.0) / $total_pixels}")
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# Compare against threshold
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local is_match=$(awk "BEGIN {print ($diff_pct < $threshold) ? 1 : 0}")
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if [ "$is_match" -eq 1 ]; then
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matching=$((matching + 1))
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if [ -n "$VERBOSE" ] || [ "$diff_pixels" -gt 0 ]; then
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echo " MATCH: $filename (${diff_pct}% different)"
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fi
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else
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different=$((different + 1))
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echo " DIFFERENT: $filename (${diff_pct}% different, threshold: ${threshold}%)"
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# Show diagnostic info for failing scenario
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if [ -n "$VERBOSE" ]; then
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echo " Content bounds:"
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local baseline_bounds=$(magick "$baseline" -flatten -fuzz 1% -trim -format "%w x %h at %O" info: 2>/dev/null || echo "N/A")
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local current_bounds=$(magick "$current" -fuzz 1% -trim -format "%w x %h at %O" info: 2>/dev/null || echo "N/A")
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echo " Baseline: $baseline_bounds"
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echo " Current: $current_bounds"
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fi
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fi
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done
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# Check for extra files
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local extra=0
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for current in "$WEBGL_OUTPUT_DIR"/*.png; do
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[ -e "$current" ] || continue
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local filename=$(basename "$current")
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local baseline="$BASELINE_WEBGL_DIR/$filename"
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if [ ! -f "$baseline" ]; then
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extra=$((extra + 1))
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echo " EXTRA: $filename (not in baseline)"
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fi
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done
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echo ""
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echo " Results: $matching/$total matching, $different different, $missing missing, $extra extra"
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if [ "$different" -gt 0 ] || [ "$missing" -gt 0 ]; then
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log_error "WebGL vs Baseline: FAILED"
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echo ""
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echo "MIGRATION REGRESSION DETECTED!"
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echo "WebGL output has changed from baseline. This indicates the migration"
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echo "has altered rendering behavior. Please investigate before proceeding."
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echo ""
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echo "To update baseline (if changes are intentional):"
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echo " cp $WEBGL_OUTPUT_DIR/*.png $BASELINE_WEBGL_DIR/"
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echo " git add $BASELINE_WEBGL_DIR/"
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echo " git commit -m 'Update WebGL baseline after migration'"
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return 1
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else
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log_success "WebGL vs Baseline: PASSED"
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return 0
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fi
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}
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# ============================================================================
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# Build Function
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# ============================================================================
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build_webgl() {
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log_header "Building WebGL Test"
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if [ ! -f "$SCRIPT_DIR/build-gal-webgl-test.sh" ]; then
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log_error "WebGL build script not found: $SCRIPT_DIR/build-gal-webgl-test.sh"
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exit 1
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fi
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# Check if Emscripten is available
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if ! command -v emcmake &> /dev/null; then
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log_error "Emscripten not available - WebGL build requires emsdk or Docker"
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log_step "Activate emsdk first or run inside Docker container"
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exit 1
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fi
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log_step "Running scripts/build-gal-webgl-test.sh..."
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if "$SCRIPT_DIR/build-gal-webgl-test.sh"; then
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log_success "WebGL build succeeded"
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else
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log_error "WebGL build failed"
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exit 1
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fi
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}
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# ============================================================================
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# Run Function
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# ============================================================================
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run_webgl() {
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log_header "Running WebGL Test"
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local spec_file="$PROJECT_ROOT/tests/e2e/gal-webgl.spec.ts"
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if [ ! -f "$spec_file" ]; then
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log_error "WebGL test spec not found: $spec_file"
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exit 1
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fi
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# Create output directory
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mkdir -p "$WEBGL_OUTPUT_DIR"
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log_step "Running Playwright test..."
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cd "$PROJECT_ROOT/tests"
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if npx playwright test gal-webgl.spec.ts; then
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local count=$(ls -1 "$WEBGL_OUTPUT_DIR"/*.png 2>/dev/null | wc -l | tr -d ' ')
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log_success "WebGL test completed: $count screenshots generated"
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else
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log_error "WebGL test failed"
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exit 1
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fi
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cd "$PROJECT_ROOT"
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}
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# ============================================================================
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# Main
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# ============================================================================
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log_header "GAL WebGL Regression Test (Monitoring)"
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echo "Project Root: $PROJECT_ROOT"
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echo "Baseline WebGL: $BASELINE_WEBGL_DIR"
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echo "Current Output: $WEBGL_OUTPUT_DIR"
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echo ""
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echo "Purpose: Detect regressions during WebGL GAL migration to KiCad"
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echo "Strategy: Compare current WebGL output against baseline-webgl"
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# Build phase (always clean build to avoid stale object issues)
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build_webgl
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# Run phase
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run_webgl
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# Compare phase
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log_header "Comparing WebGL vs Baseline"
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if compare_webgl_screenshots; then
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COMPARE_STATUS=0
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else
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COMPARE_STATUS=1
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fi
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# Final summary
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log_header "Final Result"
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if [ "$COMPARE_STATUS" -eq 0 ]; then
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log_success "WebGL output matches baseline perfectly!"
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echo ""
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echo "Migration safety check PASSED. Rendering fidelity preserved."
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exit 0
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else
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log_error "WebGL output differs from baseline!"
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echo ""
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echo "Migration safety check FAILED. Review changes before proceeding."
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exit 1
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fi
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