Add k6 tests

k6-example/vite.config.js

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+import { defineConfig } from 'vite';
+import { babel } from '@rollup/plugin-babel';
+import { nodeResolve } from '@rollup/plugin-node-resolve';
+import copy from 'rollup-plugin-copy';
+import fg from 'fast-glob';
+
+/**
+ * Gets the entrypoints of files within a set of given paths (i.e src/tests). 
+ * This is useful as when we execute k6, we run it against individual test files 
+ * @returns an object of [fileName]: absolute file path
+ */
+const getEntryPoints = (entryPoints) => {
+  // Searches for files that match the patterns defined in the array of input points.
+  // Returns an array of absolute file paths.
+  const files = fg.sync(entryPoints, { absolute: true });
+
+  // Maps the file paths in the "files" array to an array of key-value pair.
+  const entities = files.map((file) => {
+    // Extract the part of the file path after the "src" folder and before the file extension.
+    const [key] = file.match(/(?<=src\/).*$/) || [];
+
+    // Remove the file extension from the key.
+    const keyWithoutExt = key.replace(/\.[^.]*$/, '');
+
+    return [keyWithoutExt, file];
+  });
+
+  // Convert the array of key-value pairs to an object using the Object.fromEntries() method.
+  // Returns an object where each key is the file name without the extension and the value is the absolute file path.
+  return Object.fromEntries(entities);
+};
+
+export default defineConfig({
+  mode: 'production',
+  build: {
+    lib: {
+      entry: getEntryPoints(['./src/tests/*.ts']),
+      fileName: '[name]',
+      formats: ['cjs'],
+      sourcemap: true,
+    },
+    outDir: 'dist',
+    minify: false, // Don't minimize, as it's not used in the browser
+    rollupOptions: {
+      external: [new RegExp(/^(k6|https?\:\/\/)(\/.*)?/)],
+    },
+  },
+  resolve: {
+    extensions: ['.ts', '.js'],
+  },
+  plugins: [
+    copy({
+      targets: [
+        {
+          src: 'assets/**/*',
+          dest: 'dist',
+          noErrorOnMissing: true,
+        },
+      ],
+    }),
+    babel({
+      babelHelpers: 'bundled',
+      exclude: /node_modules/,
+    }),
+    nodeResolve(),
+  ],
+});