Fixed save-frontend-common (#2897)

- fixed dependency in task
- added karma.config.d/custom-config.js to fix tests

Author: nulls

save-frontend-common/build.gradle.kts

@@ -249,7 +249,7 @@ tasks.withType<org.jetbrains.kotlin.gradle.targets.js.webpack.KotlinWebpack> {
 
 val distribution: Configuration by configurations.creating
 val distributionJarTask by tasks.registering(Jar::class) {
-    dependsOn(":save-cosv-frontend:browserDistribution")
+    dependsOn(":save-frontend-common:browserDistribution")
     archiveClassifier.set("distribution")
     from("$buildDir/$distributionsDirName") {
         into("static")

save-frontend-common/karma.config.d/custom-config.js

@@ -0,0 +1,35 @@
+// https://stackoverflow.com/questions/62826599/what-code-coverage-tool-to-use-for-the-javascript-code-in-a-kotlin-multiplatform
+;(function(config) {
+    const path = require("path")
+    config.reporters.push("coverage-istanbul")
+    config.plugins.push("karma-coverage-istanbul-reporter")
+    config.webpack.module.rules.push(
+        {
+            test: /\.js$/,
+            use: {loader: 'istanbul-instrumenter-loader'},
+            // fixme: need to exclude Kotlin dependencies
+            include: [path.resolve(__dirname, '../save-cloud-save-frontend-common/kotlin/')]
+        }
+    )
+    config.coverageIstanbulReporter = {
+        reports: ["html", "lcov"]
+    }
+}(config));
+
+config.set({
+    client: {
+        mocha: {
+            // completely disable timeout
+            timeout: 0
+        }
+    },
+    proxies: {
+        // serving mockServiceWorker.js.js from location relative to base url
+        // the file should be included into Karma's `files` to be served by server at all
+        '/mockServiceWorker.js': '/base/mockServiceWorker.js',
+    },
+})
+
+// http://karma-runner.github.io/6.3/config/files.html
+// 'All of the relative patterns will get resolved using the basePath first.', where basePath is set by KGP to `node_modules`
+config.files.push('./mockServiceWorker.js')