chore: update tst test (#2538)

Author: tsctx

test/tree.js

@@ -1,38 +1,65 @@
 'use strict'
 
-const { TernarySearchTree } = require('../lib/core/tree')
+const { TernarySearchTree, tree } = require('../lib/core/tree')
+const { wellknownHeaderNames, headerNameLowerCasedRecord } = require('../lib/core/constants')
 const { test } = require('tap')
 
 test('Ternary Search Tree', (t) => {
-  t.plan(1)
-  const characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'
-  const charactersLength = characters.length
-
-  function generateAsciiString (length) {
-    let result = ''
-    for (let i = 0; i < length; ++i) {
-      result += characters[Math.floor(Math.random() * charactersLength)]
-    }
-    return result
-  }
-  const tst = new TernarySearchTree()
+  t.plan(4)
 
-  const LENGTH = 5000
+  t.test('The empty key cannot be added.', (t) => {
+    t.plan(2)
+    t.throws(() => new TernarySearchTree().insert(Buffer.from(''), ''))
+    const tst = new TernarySearchTree()
+    tst.insert(Buffer.from('a'), 'a')
+    t.throws(() => tst.insert(Buffer.from(''), ''))
+  })
 
-  /** @type {string[]} */
-  const random = new Array(LENGTH)
-  /** @type {Buffer[]} */
-  const randomBuffer = new Array(LENGTH)
+  t.test('duplicate key', (t) => {
+    t.plan(2)
+    const tst = new TernarySearchTree()
+    const key = Buffer.from('a')
+    tst.insert(key, 'a')
+    t.equal(tst.lookup(key), 'a')
+    tst.insert(key, 'b')
+    t.equal(tst.lookup(key), 'b')
+  })
 
-  for (let i = 0; i < LENGTH; ++i) {
-    const key = generateAsciiString((Math.random() * 100 + 5) | 0)
-    const lowerCasedKey = random[i] = key.toLowerCase()
-    randomBuffer[i] = Buffer.from(key)
-    tst.insert(Buffer.from(lowerCasedKey), lowerCasedKey)
-  }
+  t.test('tree', (t) => {
+    t.plan(wellknownHeaderNames.length)
+    for (let i = 0; i < wellknownHeaderNames.length; ++i) {
+      const key = wellknownHeaderNames[i]
+      t.equal(tree.lookup(Buffer.from(key)), headerNameLowerCasedRecord[key])
+    }
+  })
 
-  t.test('all', (t) => {
+  t.test('fuzz', (t) => {
+    const LENGTH = 2000
     t.plan(LENGTH)
+    const characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'
+    const charactersLength = characters.length
+
+    function generateAsciiString (length) {
+      let result = ''
+      for (let i = 0; i < length; ++i) {
+        result += characters[Math.floor(Math.random() * charactersLength)]
+      }
+      return result
+    }
+    const tst = new TernarySearchTree()
+
+    /** @type {string[]} */
+    const random = new Array(LENGTH)
+    /** @type {Buffer[]} */
+    const randomBuffer = new Array(LENGTH)
+
+    for (let i = 0; i < LENGTH; ++i) {
+      const key = generateAsciiString((Math.random() * 100 + 5) | 0)
+      const lowerCasedKey = random[i] = key.toLowerCase()
+      randomBuffer[i] = Buffer.from(key)
+      tst.insert(Buffer.from(lowerCasedKey), lowerCasedKey)
+    }
+
     for (let i = 0; i < LENGTH; ++i) {
       t.equal(tst.lookup(randomBuffer[i]), random[i])
     }