✅ Add test cases

index.test.js

@@ -0,0 +1,64 @@
+const generatePayload = require('./')
+
+/* eslint-env jest */
+function testcase (name, id, options, expected) {
+  test(`${name}: ${id} ${require('util').inspect(options)} => ${expected}`, () => {
+    expect(generatePayload(id, options)).toBe(expected)
+  })
+}
+
+describe('Phone number', () => {
+  testcase(
+    'Local phone number',
+    '0801234567',
+    { },
+    '00020101021129370016A000000677010111011300668012345675802TH530376463046197'
+  )
+
+  testcase(
+    'Dashed local phone number',
+    '080-123-4567',
+    { },
+    '00020101021129370016A000000677010111011300668012345675802TH530376463046197'
+  )
+
+  testcase(
+    'Dashed phone number',
+    '+66-89-123-4567',
+    { },
+    '00020101021129370016A000000677010111011300668912345675802TH5303764630429C1'
+  )
+})
+
+describe('National ID number', () => {
+  testcase(
+    'National ID number',
+    '1111111111111',
+    { },
+    '00020101021129370016A000000677010111021311111111111115802TH530376463047B5A'
+  )
+  testcase(
+    'Dashed national ID number',
+    '1-1111-11111-11-1',
+    { },
+    '00020101021129370016A000000677010111021311111111111115802TH530376463047B5A'
+  )
+})
+
+describe('Tax ID', () => {
+  testcase(
+    'Tax ID number',
+    '0123456789012',
+    { },
+    '00020101021129370016A000000677010111021301234567890125802TH530376463040CBD'
+  )
+})
+
+describe('Amount setting', () => {
+  testcase(
+    'Amount',
+    '000-000-0000',
+    { amount: 4.22 },
+    '00020101021229370016A000000677010111011300660000000005802TH530376454044.226304E469'
+  )
+})

package.json

@@ -9,6 +9,7 @@
     "cli.js"
   ],
   "devDependencies": {
+    "jest": "^20.0.4",
     "standard": "^10.0.3"
   },
   "name": "promptpay-qr",
@@ -19,7 +20,7 @@
   "description": "Library to generate PromptPay payload and CLI script to generate QR code",
   "main": "index.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "jest"
   },
   "author": "Thai Pangsakulyanont <[email protected]> (http://dt.in.th/)",
   "license": "MIT",