refactor(test): modernizes test setup

package.json

@@ -34,17 +34,15 @@
     "query-string": "^7.1.1"
   },
   "devDependencies": {
-    "chai": "^4.3.6",
+    "c8": "9.1.0",
     "dependency-cruiser": "16.2.3",
     "eslint": "8.57.0",
     "eslint-config-standard": "17.1.0",
     "eslint-plugin-import": "2.29.1",
     "eslint-plugin-node": "11.1.0",
     "eslint-plugin-promise": "6.1.1",
-    "mocha": "10.3.0",
     "node-localstorage": "3.0.5",
     "npm-run-all": "4.1.5",
-    "nyc": "15.1.0",
     "sass": "1.71.1",
     "sw-precache": "5.2.1",
     "upem": "9.0.3",
@@ -53,11 +51,6 @@
   },
   "upem": {
     "policies": [
-      {
-        "package": "chai",
-        "policy": "wanted",
-        "because": "chai > 4 are ESM and we aren't yet"
-      },
       {
         "package": "codemirror",
         "policy": "wanted",
@@ -73,10 +66,10 @@
   "scripts": {
     "build": "make clean build",
     "check": "npm-run-all --parallel depcruise lint test:cover",
-    "depcruise": "depcruise --validate -- src/script",
+    "depcruise": "depcruise src/script",
     "depcruise:graph": "npm-run-all --parallel depcruise:graph:*",
-    "depcruise:graph:png": "depcruise --validate --output-type dot src/script/mscgen-interpreter.js | dot -Gdpi=192 -Gsplines=ortho -T png | pngquant - > docs/dependencygraph.png",
-    "depcruise:graph:html": "depcruise --validate --output-type dot src/script/mscgen-interpreter.js | dot -Gsplines=ortho -T svg | depcruise-wrap-stream-in-html > docs/dependencygraph.html",
+    "depcruise:graph:png": "depcruise --output-type dot src/script/mscgen-interpreter.js | dot -Gdpi=192 -Gsplines=ortho -T png | pngquant - > docs/dependencygraph.png",
+    "depcruise:graph:html": "depcruise --output-type dot src/script/mscgen-interpreter.js | dot -Gsplines=ortho -T svg | depcruise-wrap-stream-in-html > docs/dependencygraph.html",
     "lint": "eslint src",
     "lint:fix": "eslint --fix src",
     "scm:push": "run-p --aggregate-output scm:push:*",
@@ -90,8 +83,8 @@
     "scm:push:bitbucket-mirror:commits": "git push bitbucket-mirror",
     "scm:push:bitbucket-mirror:tags": "git push --tags bitbucket-mirror",
     "scm:stage": "git add .",
-    "test": "mocha --reporter dot --recursive src/script/test",
-    "test:cover": "nyc --check-coverage npm test",
+    "test": "node --test-reporter ./tools/dot-with-summary.reporter.js --test src/script/test/**/*.spec.js",
+    "test:cover": "c8 npm test",
     "update-dependencies": "npm-run-all upem:update upem:install lint:fix build check",
     "upem-outdated": "npm outdated --json --long | upem --dry-run",
     "upem:update": "npm outdated ---json --long | upem | pbcopy && pbpaste",

src/script/test/interpreter/sampleListReader.spec.js

@@ -1,19 +1,21 @@
 /* eslint max-len:0 */
 const sampleListReader = require('../../interpreter/sampleListReader')
 const fixture = require('./sampleListReaderFixture.json')
-const expect = require('chai').expect
+const assert = require('node:assert/strict')
+const { describe, it } = require('node:test')
+// kutjelikken is
 
 describe('sampleListReader', function () {
   const OPTIONS_NO_DEBUG_FIXTURE = '<optgroup label="first option group"><option value="samples/debug-not-specified.mscgen">debug not specified</option><option value="samples/debug-false-sample.mscgen">debug false</option></optgroup><optgroup label="second option group"><option value="getikt">mesjogge</option><option value="leip">knetter</option></optgroup>'
   const OPTIONS_DEBUG_FIXTURE = '<optgroup label="first option group"><option value="samples/debug-not-specified.mscgen">debug not specified</option><option value="samples/debug-false-sample.mscgen">debug false</option><option value="samples/debug-true-sample.mscgen">debug true</option></optgroup><optgroup label="second option group"><option value="getikt">mesjogge</option><option value="leip">knetter</option></optgroup>'
 
   it('should return no debug options when debug not specified', function () {
-    expect(sampleListReader.toOptionList(fixture)).to.equal(OPTIONS_NO_DEBUG_FIXTURE)
+    assert.deepEqual(sampleListReader.toOptionList(fixture), OPTIONS_NO_DEBUG_FIXTURE)
   })
   it('should return no debug options when debug false', function () {
-    expect(sampleListReader.toOptionList(fixture, false)).to.equal(OPTIONS_NO_DEBUG_FIXTURE)
+    assert.deepEqual(sampleListReader.toOptionList(fixture, false), OPTIONS_NO_DEBUG_FIXTURE)
   })
   it('should also return debug options when debug true', function () {
-    expect(sampleListReader.toOptionList(fixture, true)).to.equal(OPTIONS_DEBUG_FIXTURE)
+    assert.deepEqual(sampleListReader.toOptionList(fixture, true), OPTIONS_DEBUG_FIXTURE)
   })
 })

src/script/test/utl/exporter.spec.js

@@ -1,6 +1,7 @@
 /* eslint max-len:0 */
-const assert = require('assert')
+const assert = require('node:assert/strict')
 const xport = require('../../utl/exporter')
+const { describe, it } = require('node:test')
 
 const gAST = {
   meta: {

src/script/test/utl/maps.spec.js

@@ -1,5 +1,6 @@
-const assert = require('chai').assert
+const assert = require('node:assert/strict')
 const map = require('../../utl/maps')
+const { describe, it } = require('node:test')
 
 describe('ui/utl/maps', function () {
   describe('#classifyExtension() - ', function () {

src/script/test/utl/store.spec.js

@@ -1,7 +1,8 @@
 /* global localStorage, global */
 
 const store = require('../../utl/store')
-const assert = require('assert')
+const assert = require('node:assert/strict')
+const { describe, it, before, after, beforeEach } = require('node:test')
 
 describe('ui/utl/store', function () {
   let lLanguage = 'initial language'