The bin should use argArray and set useless runtime and script parameters for calling main

Author: CMCDragonkai

src/bin/typescript-demo-lib.ts

@@ -20,7 +20,7 @@ function main(argv = process.argv): number {
   process.stdout.write(uuidv4() + '\n');
 
   // Add the first two command-line args and print the result
-  const nums = new NumPair(parseInt(argv[2]), parseInt(argv[3]));
+  const nums = new NumPair(parseInt(argArray[0]), parseInt(argArray[1]));
   const sum = nums.num1 + nums.num2;
   process.stdout.write(nums.num1 + ' + ' + nums.num2 + ' = ' + sum + '\n');
 

tests/bin/typescript-demo-lib.test.ts

@@ -9,11 +9,11 @@ describe('main', () => {
   test('main takes synthetic parameters', () => {
     // jest can also "spy on" the console object
     // and then you can test on stdout
-    expect(main(['1'])).toEqual(0);
+    expect(main(['', '', '1', '2'])).toEqual(0);
   });
   test('no input', () => {
     const mockLog = mockProcessStdout();
-    main(['thing', 'thing']);
+    main(['', '']);
     expect(mockLog).toHaveBeenCalledTimes(4);
     expect(mockLog.mock.calls[0][0]).toBe('[]\n');
     expect(mockLog.mock.calls[1][0]).toBe('new library\n');
@@ -23,7 +23,7 @@ describe('main', () => {
   });
   test('adds 0 + 0', () => {
     const mockLog = mockProcessStdout();
-    main(['thing', 'thing', '0', '0']);
+    main(['', '', '0', '0']);
     expect(mockLog).toHaveBeenCalledTimes(4);
     expect(mockLog.mock.calls[0][0]).toBe('[0,0]\n');
     expect(mockLog.mock.calls[1][0]).toBe('new library\n');
@@ -33,7 +33,7 @@ describe('main', () => {
   });
   test('adds 0 + 1', () => {
     const mockLog = mockProcessStdout();
-    main(['thing', 'thing', '0', '1']);
+    main(['', '', '0', '1']);
     expect(mockLog).toHaveBeenCalledTimes(4);
     expect(mockLog.mock.calls[0][0]).toBe('[0,1]\n');
     expect(mockLog.mock.calls[1][0]).toBe('new library\n');
@@ -43,7 +43,7 @@ describe('main', () => {
   });
   test('adds 1 + 0', () => {
     const mockLog = mockProcessStdout();
-    main(['thing', 'thing', '1', '0']);
+    main(['', '', '1', '0']);
     expect(mockLog).toHaveBeenCalledTimes(4);
     expect(mockLog.mock.calls[0][0]).toBe('[1,0]\n');
     expect(mockLog.mock.calls[1][0]).toBe('new library\n');
@@ -53,7 +53,7 @@ describe('main', () => {
   });
   test('adds 7657 + 238947', () => {
     const mockLog = mockProcessStdout();
-    main(['thing', 'thing', '7657', '238947']);
+    main(['', '', '7657', '238947']);
     expect(mockLog).toHaveBeenCalledTimes(4);
     expect(mockLog.mock.calls[0][0]).toBe('[7657,238947]\n');
     expect(mockLog.mock.calls[1][0]).toBe('new library\n');