karma

karma.conf.js

@@ -0,0 +1,32 @@
+module.exports = function (config) {
+  config.set({
+    plugins: [
+      "karma-webpack",
+      "karma-jasmine",
+      "karma-firefox-launcher",
+      // Adding it to the plugins array
+      "karma-chrome-launcher",
+    ],
+    // I'm starting a headless browser, but I can also swap this out for "Chrome" to add debug statements, inspect console logs etc.
+    browsers: ["Firefox", "FirefoxDeveloper", "FirefoxNightly", "Chrome"],
+    // base path that will be used to resolve all patterns (eg. files, exclude)
+    basePath: "",
+
+    // frameworks to use
+    // available frameworks: https://npmjs.org/browse/keyword/karma-adapter
+    frameworks: ["jasmine"],
+
+    // list of files / patterns to load in the browser
+    // Here I'm including all of the the Jest tests which are all under the __tests__ directory.
+    // You may need to tweak this patter to find your test files/
+    files: ["./scripts/karma-setup.js", "packages/*/__tests__/**/*.ts"],
+
+    // preprocess matching files before serving them to the browser
+    // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
+    preprocessors: {
+      "./karma-setup.js": ["webpack"],
+      // Use webpack to bundle our tests files
+      "packages/*/__tests__/**/*.ts": ["webpack"],
+    },
+  });
+};