update unittest

src/paraEncode.js

@@ -9,8 +9,10 @@ export class ParaEncoder {
 
   /*  */
   constructor(numOfTR, codec) {
-    assert(typeof(numOfTR) == 'number');
-    assert(typeof(codec) == 'string');
+    assert(typeof(numOfTR) == 'number',
+           "typeof(numOfTR) == 'number' failed");
+    assert(typeof(codec) == 'string',
+           "typeof(codec) == 'number' failed");
 
     this.numOfTR = numOfTR;
     this.codec = codec;

src/utils.js

@@ -2,6 +2,6 @@
 
 export function assert(expr, message) {
   if (!expr) {
-    throw message || "Assertion failed";
+    throw new Error(message || 'Assertion failed');
   }
 }

tests/paraEncodeSpec.test.js

-import "../src/paraEncode";
+import { ParaEncoder } from "../src/paraEncode";
 
-describe("A suite", function() {
-  it("contain spec with an expectation", function() {
-    expect(true).toBe(true);
-  });
+
+test('ParaEncoder Normal Init', () => {
+  let dut = new ParaEncoder(1, "h264");
+  expect(dut.numOfTR).toBe(1);
+  expect(dut.codec).toBe("h264");
 });
+
+test("ParaEncoder Invalid Init", () => {
+  try {
+    new ParaEncoder(1, 1);
+  } catch (err) {
+    expect(err.message)
+      .toBe("typeof(codec) == 'number' failed");
+  }
+})