Add support for mocha-json

reports/mocha/test/main.test.js

@@ -0,0 +1,24 @@
+const assert = require('assert').strict;
+const lib = require('../lib/main')
+
+describe('Test 1', () => {
+  it('Passing test', () => {
+    assert.equal(true, true)
+  });
+
+  describe('Test 1.1', () => {
+    it('Failing test', () => {
+      assert.equal(false, true)
+    });
+
+    it('Exception in target unit', () => {
+      lib.throwError();
+    });
+  });
+});
+
+describe('Test 2', () => {
+  it('Exception in test', () => {
+    throw new Error('Some error');
+  });
+});