test(mocha): test extra reporters by ctor

packages/allure-mocha/test/samples/customReporter.cjs

@@ -0,0 +1,13 @@
+const Mocha = require("mocha");
+
+class CustomReporter extends Mocha.reporters.Base {
+    constructor(runner, opts) {
+        super(runner, opts);
+        runner.on("start", () => {
+            // eslint-disable-next-line no-console
+            console.log(JSON.stringify(opts.reporterOptions));
+        });
+    }
+}
+
+module.exports = CustomReporter;

packages/allure-mocha/test/spec/framework/extraReporters.test.ts

@@ -206,6 +206,34 @@ describe("extra reporters", () => {
     });
   });
 
+  describe("local reporter", () => {
+    test("local reporter without options", async () => {
+      const { tests, stdout } = await runMochaInlineTest(
+        {
+          extraReporters: "./customReporter.cjs",
+          inputFiles: ["customReporter.cjs"],
+        },
+        "plain-mocha/testInSuite",
+      );
+
+      expect(tests).toEqual([expect.objectContaining({ name: "a test in a suite" })]);
+      expect(JSON.parse(stdout.join(""))).toEqual({});
+    });
+
+    test("local reporter with options", async () => {
+      const { tests, stdout } = await runMochaInlineTest(
+        {
+          extraReporters: ["./customReporter.cjs", { foo: "bar" }],
+          inputFiles: ["customReporter.cjs"],
+        },
+        "plain-mocha/testInSuite",
+      );
+
+      expect(tests).toEqual([expect.objectContaining({ name: "a test in a suite" })]);
+      expect(JSON.parse(stdout.join(""))).toEqual({ foo: "bar" });
+    });
+  });
+
   describe("errors", () => {
     test("a reporter must be a string", async () => {
       const { exitCode, stderr } = await runMochaInlineTest(

packages/allure-mocha/test/utils.ts

@@ -13,6 +13,7 @@ type MochaRunOptions = {
   environmentInfo?: { [keys: string]: string };
   categories?: readonly Category[];
   extraReporters?: AllureMochaReporterConfig["extraReporters"];
+  inputFiles?: string[];
   outputFiles?: Record<string, string>;
 };
 
@@ -88,7 +89,10 @@ abstract class AllureMochaTestRunner {
 
     const testDir = path.join(this.runResultsDir, randomUUID());
 
-    const filesToCopy = [...this.getFilesToCopy(testDir)];
+    const filesToCopy = [
+      ...this.getFilesToCopy(testDir),
+      ...(this.config.inputFiles?.map((f) => this.getCopyEntry(f, testDir)) ?? []),
+    ];
     const filesToTransform = [
       ...this.getFilesToTransform(testDir),
       ...samples.map((sample) => this.#getSampleEntry(sample, this.specsPath, testDir)),