Load source maps of dependencies for tests

package-lock.json

@@ -62,6 +62,7 @@
         "serve-static": "^1.14.0",
         "shx": "^0.3.2",
         "sinon": "^13.0.0",
+        "source-map-loader": "^3.0.1",
         "threads": "^1.6.5",
         "typescript": "4.6.3",
         "walk": "^2.3.9",
@@ -2475,6 +2476,12 @@
       "integrity": "sha512-NuHqBY1PB/D8xU6s/thBgOAiAP7HOYDQ32+BFZILJ8ivkUkAHQnWfn6WhL79Owj1qmUnoN/YPhktdIoucipkAQ==",
       "dev": true
     },
+    "node_modules/abab": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/abab/-/abab-2.0.5.tgz",
+      "integrity": "sha512-9IK9EadsbHo6jLWIpxpR6pL0sazTXV6+SQv25ZB+F7Bj9mJNaOc4nCRabwd5M/JwmUa8idz6Eci6eKfJryPs6Q==",
+      "dev": true
+    },
     "node_modules/accepts": {
       "version": "1.3.8",
       "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz",
@@ -9066,6 +9073,48 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/source-map-js": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.0.2.tgz",
+      "integrity": "sha512-R0XvVJ9WusLiqTCEiGCmICCMplcCkIwwR11mOSD9CR5u+IXYdiseeEuXCVAjS54zqwkLcPNnmU4OeJ6tUrWhDw==",
+      "dev": true,
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/source-map-loader": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/source-map-loader/-/source-map-loader-3.0.1.tgz",
+      "integrity": "sha512-Vp1UsfyPvgujKQzi4pyDiTOnE3E4H+yHvkVRN3c/9PJmQS4CQJExvcDvaX/D+RV+xQben9HJ56jMJS3CgUeWyA==",
+      "dev": true,
+      "dependencies": {
+        "abab": "^2.0.5",
+        "iconv-lite": "^0.6.3",
+        "source-map-js": "^1.0.1"
+      },
+      "engines": {
+        "node": ">= 12.13.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/webpack"
+      },
+      "peerDependencies": {
+        "webpack": "^5.0.0"
+      }
+    },
+    "node_modules/source-map-loader/node_modules/iconv-lite": {
+      "version": "0.6.3",
+      "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.6.3.tgz",
+      "integrity": "sha512-4fCk79wshMdzMp2rH06qWrJE4iolqLhCUH+OiuIgU++RB0+94NlDL81atO7GX55uUKueo0txHNtvEyI6D7WdMw==",
+      "dev": true,
+      "dependencies": {
+        "safer-buffer": ">= 2.1.2 < 3.0.0"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/source-map-support": {
       "version": "0.5.19",
       "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.19.tgz",
@@ -12429,6 +12478,12 @@
       "integrity": "sha512-NuHqBY1PB/D8xU6s/thBgOAiAP7HOYDQ32+BFZILJ8ivkUkAHQnWfn6WhL79Owj1qmUnoN/YPhktdIoucipkAQ==",
       "dev": true
     },
+    "abab": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/abab/-/abab-2.0.5.tgz",
+      "integrity": "sha512-9IK9EadsbHo6jLWIpxpR6pL0sazTXV6+SQv25ZB+F7Bj9mJNaOc4nCRabwd5M/JwmUa8idz6Eci6eKfJryPs6Q==",
+      "dev": true
+    },
     "accepts": {
       "version": "1.3.8",
       "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz",
@@ -17429,6 +17484,34 @@
       "integrity": "sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=",
       "dev": true
     },
+    "source-map-js": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.0.2.tgz",
+      "integrity": "sha512-R0XvVJ9WusLiqTCEiGCmICCMplcCkIwwR11mOSD9CR5u+IXYdiseeEuXCVAjS54zqwkLcPNnmU4OeJ6tUrWhDw==",
+      "dev": true
+    },
+    "source-map-loader": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/source-map-loader/-/source-map-loader-3.0.1.tgz",
+      "integrity": "sha512-Vp1UsfyPvgujKQzi4pyDiTOnE3E4H+yHvkVRN3c/9PJmQS4CQJExvcDvaX/D+RV+xQben9HJ56jMJS3CgUeWyA==",
+      "dev": true,
+      "requires": {
+        "abab": "^2.0.5",
+        "iconv-lite": "^0.6.3",
+        "source-map-js": "^1.0.1"
+      },
+      "dependencies": {
+        "iconv-lite": {
+          "version": "0.6.3",
+          "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.6.3.tgz",
+          "integrity": "sha512-4fCk79wshMdzMp2rH06qWrJE4iolqLhCUH+OiuIgU++RB0+94NlDL81atO7GX55uUKueo0txHNtvEyI6D7WdMw==",
+          "dev": true,
+          "requires": {
+            "safer-buffer": ">= 2.1.2 < 3.0.0"
+          }
+        }
+      }
+    },
     "source-map-support": {
       "version": "0.5.19",
       "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.19.tgz",

package.json

@@ -98,6 +98,7 @@
     "serve-static": "^1.14.0",
     "shx": "^0.3.2",
     "sinon": "^13.0.0",
+    "source-map-loader": "^3.0.1",
     "threads": "^1.6.5",
     "typescript": "4.6.3",
     "walk": "^2.3.9",

test/browser/karma.config.cjs

@@ -74,6 +74,11 @@ module.exports = function (karma) {
       },
       module: {
         rules: [
+          {
+            test: /\.js$/,
+            enforce: 'pre',
+            use: ['source-map-loader'],
+          },
           {
             test: /\.js$/,
             use: {

test/browser/spec/ol/layer/MapboxVector.test.js

@@ -1,6 +1,5 @@
 import MapboxVectorLayer from '../../../../../src/ol/layer/MapboxVector.js';
 import {asString} from '../../../../../src/ol/color.js';
-import {strokeInstruction} from '../../../../../src/ol/render/canvas/Instruction.js';
 import {unByKey} from '../../../../../src/ol/Observable.js';
 
 describe('ol/layer/MapboxVector', () => {