Add AVA test runner and tests

joakim · Nov 5, 2019 · 553a70d · 553a70d
1 parent f5e401a
commit 553a70d
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Showing 2 changed files with 79 additions and 1 deletion.
diff --git a/package.json b/package.json
@@ -25,7 +25,7 @@
   "scripts": {
     "build": "rollup -c",
     "dev": "rollup -c -w",
-    "test": "node test/test.js",
+    "test": "ava",
     "pretest": "yarn build",
     "release": "node -r dotenv/config ./node_modules/.bin/release-it"
   },
@@ -36,14 +36,23 @@
   "devDependencies": {
     "@rollup/plugin-buble": "^0.20.0",
     "@rollup/plugin-replace": "^2.2.0",
+    "ava": "^2.4.0",
     "dotenv": "^8.2.0",
     "eslint": "^6.6.0",
+    "esm": "^3.2.25",
     "prettier": "joakim/prettiest",
     "release-it": "^12.4.3",
     "rollup": "^1.26.3",
     "rollup-plugin-commonjs": "^10.1.0",
     "rollup-plugin-node-resolve": "^5.2.0"
   },
+  "ava": {
+    "babel": false,
+    "compileEnhancements": false,
+    "require": [
+      "esm"
+    ]
+  },
   "release-it": {
     "github": {
       "release": true

diff --git a/test/index.js b/test/index.js
@@ -0,0 +1,69 @@
+import test from 'ava'
+
+import {
+  generate,
+  encode,
+  decode,
+  validArrangement,
+} from '../src/main.js'
+
+import { POSITIONS } from '../src/lookup.js'
+
+test('validArrangement() actually validates valid arrangements', t => {
+  t.plan(960)
+
+  // Validate all arrangements in the lookup table
+  for (let id = 0; id < 960; id++) {
+    t.true(validArrangement(POSITIONS[id]))
+  }
+})
+
+test('validArrangement() actually invalidates invalid arrangements', t => {
+  t.plan(3)
+  t.false(validArrangement('NONONONO')) // Obviously wrong
+  t.false(validArrangement('KQRNNBBR')) // Both rooks on one side of the king
+  t.false(validArrangement('BNBQRNKR')) // Bishops on same colored squares
+})
+
+test('generate() returns only correct arrangements', t => {
+  t.plan(960)
+
+  // Check all 960 starting positions at random
+  let cache = new Set()
+  do {
+    let sp = generate()
+    if (cache.has(sp)) continue
+
+    // Check against the lookup table
+    t.not(POSITIONS.indexOf(sp.join('')), -1)
+
+    cache.add(sp)
+  }
+  while (cache.size < 960)
+})
+
+test('decode() returns correct arrangements', t => {
+  t.plan(960)
+
+  // Check against the lookup table
+  for (let id = 0; id < 960; id++) {
+    let sp = decode(id)
+    t.is(POSITIONS.indexOf(sp.join('')), id)
+  }
+})
+
+test('encode() returns correct IDs', t => {
+  t.plan(960)
+
+  // Check against the lookup table
+  for (let id = 0; id < 960; id++) {
+    t.is(encode(POSITIONS[id]), id)
+  }
+})
+
+test.todo('toString()')
+test.todo('toArray()')
+test.todo('toLowerCase()')
+test.todo('toUpperCase()')
+test.todo('toMirror()')
+test.todo('toUnicode()')