add hw2

node_modules/process-warning/test/index.test.js

@@ -0,0 +1,99 @@
+'use strict'
+
+const test = require('tap').test
+const { createWarning, createDeprecation } = require('..')
+
+process.removeAllListeners('warning')
+
+test('Create warning with zero parameter', t => {
+  t.plan(3)
+
+  const warnItem = createWarning({
+    name: 'TestWarning',
+    code: 'CODE',
+    message: 'Not available'
+  })
+  t.equal(warnItem.name, 'TestWarning')
+  t.equal(warnItem.message, 'Not available')
+  t.equal(warnItem.code, 'CODE')
+})
+
+test('Create error with 1 parameter', t => {
+  t.plan(3)
+
+  const warnItem = createWarning({
+    name: 'TestWarning',
+    code: 'CODE',
+    message: 'hey %s'
+  })
+  t.equal(warnItem.name, 'TestWarning')
+  t.equal(warnItem.format('alice'), 'hey alice')
+  t.equal(warnItem.code, 'CODE')
+})
+
+test('Create error with 2 parameters', t => {
+  t.plan(3)
+
+  const warnItem = createWarning({
+    name: 'TestWarning',
+    code: 'CODE',
+    message: 'hey %s, I like your %s'
+  })
+  t.equal(warnItem.name, 'TestWarning')
+  t.equal(warnItem.format('alice', 'attitude'), 'hey alice, I like your attitude')
+  t.equal(warnItem.code, 'CODE')
+})
+
+test('Create error with 3 parameters', t => {
+  t.plan(3)
+
+  const warnItem = createWarning({
+    name: 'TestWarning',
+    code: 'CODE',
+    message: 'hey %s, I like your %s %s'
+  })
+  t.equal(warnItem.name, 'TestWarning')
+  t.equal(warnItem.format('alice', 'attitude', 'see you'), 'hey alice, I like your attitude see you')
+  t.equal(warnItem.code, 'CODE')
+})
+
+test('Creates a deprecation warning', t => {
+  t.plan(3)
+
+  const deprecationItem = createDeprecation({
+    name: 'DeprecationWarning',
+    code: 'CODE',
+    message: 'hello %s'
+  })
+  t.equal(deprecationItem.name, 'DeprecationWarning')
+  t.equal(deprecationItem.format('world'), 'hello world')
+  t.equal(deprecationItem.code, 'CODE')
+})
+
+test('Should throw when error code has no name', t => {
+  t.plan(1)
+  t.throws(() => createWarning(), new Error('Warning name must not be empty'))
+})
+
+test('Should throw when error has no code', t => {
+  t.plan(1)
+  t.throws(() => createWarning({ name: 'name' }), new Error('Warning code must not be empty'))
+})
+
+test('Should throw when error has no message', t => {
+  t.plan(1)
+  t.throws(() => createWarning({
+    name: 'name',
+    code: 'code'
+  }), new Error('Warning message must not be empty'))
+})
+
+test('Cannot set unlimited other than boolean', t => {
+  t.plan(1)
+  t.throws(() => createWarning({
+    name: 'name',
+    code: 'code',
+    message: 'message',
+    unlimited: 'unlimited'
+  }), new Error('Warning opts.unlimited must be a boolean'))
+})