increase test coverage

extend test coverage

scripts/build-extensions.mjs

@@ -6,7 +6,7 @@ import string from 'vite-plugin-string'
 
 const root = process.cwd()
 const extensionsRoot = resolve(root, 'src/editor/extensions')
-const outDir = resolve(root, 'dist/editor')
+const outDir = resolve(root, 'dist/editor/extensions')
 
 const htmlStringPlugin = string({
   include: [

scripts/copy-static.mjs

@@ -1,5 +1,6 @@
-import { cp, mkdir } from 'node:fs/promises'
-import { resolve } from 'node:path'
+import { cp, mkdir, readFile, writeFile } from 'node:fs/promises'
+import { createInstrumenter } from 'istanbul-lib-instrument'
+import { dirname, resolve } from 'node:path'
 
 const root = process.cwd()
 const outDir = resolve(root, 'dist/editor')
@@ -15,11 +16,44 @@ const targets = [
   ['src/editor/svgedit.css', 'svgedit.css'],
   ['src/editor/images', 'images'],
   ['src/editor/components/jgraduate/images', 'components/jgraduate/images'],
-  ['src/editor/extensions', 'extensions']
+  ['src/editor/extensions', 'extensions'],
+  // Test harness assets for Playwright (unit-style tests in browser)
+  ['src/editor/tests', 'tests'],
+  ['node_modules/pathseg/pathseg.js', 'tests/vendor/pathseg/pathseg.js']
 ]
 
 for (const [src, dest] of targets) {
   await cp(resolve(root, src), resolve(outDir, dest), { recursive: true })
 }
 
+// Instrument svgcanvas sources when collecting coverage so Playwright runs hit instrumented code.
+const svgCanvasSrc = resolve(root, 'packages/svgcanvas')
+const svgCanvasDest = resolve(outDir, 'tests/vendor/svgcanvas')
+await cp(svgCanvasSrc, svgCanvasDest, { recursive: true })
+if (process.env.COVERAGE === 'true') {
+  const instrumenter = createInstrumenter({ compact: false })
+  const instrumentPaths = [
+    'common/util.js',
+    'core/touch.js',
+    'core/namespaces.js',
+    'core/utilities.js',
+    'core/math.js',
+    'core/path.js',
+    'core/coords.js',
+    'core/units.js',
+    'core/draw.js',
+    'core/history.js',
+    'core/recalculate.js',
+    'core/clear.js'
+  ]
+  for (const relativePath of instrumentPaths) {
+    const sourceFile = resolve(svgCanvasSrc, relativePath)
+    const destFile = resolve(svgCanvasDest, relativePath)
+    const code = await readFile(sourceFile, 'utf8')
+    const instrumented = instrumenter.instrumentSync(code, sourceFile)
+    await mkdir(dirname(destFile), { recursive: true })
+    await writeFile(destFile, instrumented, 'utf8')
+  }
+}
+
 console.info('Copied static editor assets to dist/editor')

scripts/run-e2e.mjs

@@ -1,4 +1,5 @@
 import { spawn } from 'node:child_process'
+import { copyFile, mkdir } from 'node:fs/promises'
 import { join } from 'node:path'
 import { existsSync } from 'node:fs'
 
@@ -36,9 +37,19 @@ const ensureBrowser = async () => {
   }
 }
 
+const seedNycFromVitest = async () => {
+  const vitestCoverage = join(process.cwd(), 'coverage', 'coverage-final.json')
+  if (existsSync(vitestCoverage)) {
+    const nycOutputDir = join(process.cwd(), '.nyc_output')
+    await mkdir(nycOutputDir, { recursive: true })
+    await copyFile(vitestCoverage, join(nycOutputDir, 'vitest.json'))
+  }
+}
+
 if (await hasPlaywright()) {
   await ensureBrowser()
   await run('rimraf', ['.nyc_output/*'], { shell: true })
+  await seedNycFromVitest()
   await run('npx', ['playwright', 'test'])
   await run('npx', ['nyc', 'report', '--reporter', 'text-summary', '--reporter', 'json-summary'])
 }