replace mocha with tap

.taprc

@@ -0,0 +1,4 @@
+files:
+  - test/**/*.test.js
+
+branches: 96

package.json

@@ -15,9 +15,6 @@
     "file",
     "server"
   ],
-  "standard": {
-    "env": [ "mocha" ]
-  },
   "dependencies": {
     "debug": "^4.3.4",
     "depd": "2.0.0",
@@ -35,11 +32,10 @@
   },
   "devDependencies": {
     "after": "0.8.2",
-    "mocha": "10.2.0",
-    "nyc": "15.1.0",
     "snazzy": "^9.0.0",
     "standard": "^17.0.0",
-    "supertest": "6.3.3"
+    "supertest": "6.3.3",
+    "tap": "^16.3.3"
   },
   "files": [
     "HISTORY.md",
@@ -51,6 +47,7 @@
   "scripts": {
     "lint": "standard | snazzy",
     "lint:fix": "standard --fix | snazzy",
-    "test": "mocha --check-leaks --reporter spec --bail"
+    "test": "npm run test:unit",
+    "test:unit": "tap"
   }
 }

test/mime.test.js

@@ -0,0 +1,52 @@
+'use strict'
+
+process.env.NO_DEPRECATION = 'send'
+
+const { test } = require('tap')
+const path = require('path')
+const request = require('supertest')
+const send = require('..')
+const { shouldNotHaveHeader, createServer } = require('./utils')
+
+const fixtures = path.join(__dirname, 'fixtures')
+
+test('send.mime', function (t) {
+  t.plan(2)
+
+  t.test('should be exposed', function (t) {
+    t.plan(1)
+    t.ok(send.mime)
+  })
+
+  t.test('.default_type', function (t) {
+    t.plan(2)
+
+    t.before(function () {
+      this.default_type = send.mime.default_type
+    })
+
+    t.afterEach(function () {
+      send.mime.default_type = this.default_type
+    })
+
+    t.test('should change the default type', function (t) {
+      t.plan(1)
+      send.mime.default_type = 'text/plain'
+
+      request(createServer({ root: fixtures }))
+        .get('/no_ext')
+        .expect('Content-Type', 'text/plain; charset=UTF-8')
+        .expect(200, () => t.pass())
+    })
+
+    t.test('should not add Content-Type for undefined default', function (t) {
+      t.plan(2)
+      send.mime.default_type = undefined
+
+      request(createServer({ root: fixtures }))
+        .get('/no_ext')
+        .expect(shouldNotHaveHeader('Content-Type', t))
+        .expect(200, () => t.pass())
+    })
+  })
+})