Add main.test.ts

src/main.test.ts

@@ -0,0 +1,25 @@
+/**
+ * This is a dummy TypeScript test file using chai and mocha
+ *
+ * It's automatically excluded from npm and its build output is excluded from both git and npm.
+ * It is advised to test all your modules with accompanying *.test.ts-files
+ */
+
+import { expect } from 'chai';
+// import { functionToTest } from "./moduleToTest";
+
+describe('module to test => function to test', () => {
+    // initializing logic
+    const expected = 5;
+
+    it(`should return ${expected}`, () => {
+        const result = 5;
+        // assign result a value from functionToTest
+        expect(result).to.equal(expected);
+        // or using the should() syntax
+        result.should.equal(expected);
+    });
+    // ... more tests => it
+});
+
+// ... more test suites => describe