more tests

dankogai · Jul 24, 2020 · 528ff77 · 528ff77
1 parent 5e3bac1
commit 528ff77
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Showing 5 changed files with 24 additions and 9 deletions.
diff --git a/combinatorics.js b/combinatorics.js
@@ -110,6 +110,12 @@ class _CBase {
     toArray() {
         return [...this];
     }
+    get isBig() {
+        return Number.MAX_SAFE_INTEGER < this.length;
+    }
+    get isSafe() {
+        return typeof BigInt !== 'undefined' || !this.isBig;
+    }
 }
 /**
  * Permutation
@@ -124,11 +130,7 @@ export class Permutation extends _CBase {
         super();
         this.seed = [...seed];
         this.size = 0 < size && size <= this.seed.length ? size : this.seed.length;
-        const length = permutation(seed.length, this.size);
-        if (_BI === Number && Number.MAX_SAFE_INTEGER < length) {
-            throw RangeError(`${length} exceeds Number.MAX_SAFE_INTEGER`);
-        };
-        this.length = length;
+        this.length = permutation(seed.length, this.size);
         Object.freeze(this);
     }
     nth(n) {
@@ -180,6 +182,7 @@ export class Combination extends _CBase {
 export class BaseN extends _CBase {
     constructor(seed, size){
         super();
+        if (!size) size = 1;
         this.seed = [...seed];
         this.size = size;
         let base = this.seed.length;

diff --git a/test/00-chai.js b/test/00-chai.js
diff --git a/test/03-combination.js b/test/03-combination.js
@@ -16,7 +16,7 @@ describe('class Combination', () => {
         it(`new Combination([0,1...99],50).length === ${sbn}n`, () => {
             $$(c.length).to.equal(BigInt(sbn));
         });
-        it(`new Combination([0,1...99],50).nth(${sbn}n-1n)`, () => {
+        it(`.nth(${sbn}n-1n)`, () => {
             $$(c.nth(BigInt(sbn)-BigInt(1))).to.deep.equal([
                 0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10,
                11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,

diff --git a/test/03-permutation.js b/test/03-permutation.js
@@ -16,7 +16,7 @@ describe('class Permutation', () => {
         it(`new Permutation('${seed}').length === ${sbn}n`, () => {
             $$(c.length).to.equal(BigInt(sbn));
         });
-        it(`new Permutation('${seed}').nth(${sbn}n-1n)`, () => {
+        it(`.nth(${sbn}n-1n)`, () => {
             $$(c.nth(BigInt(sbn)-BigInt(1))).to.deep.equal([...seed].reverse())
         });
     } else {

diff --git a/test/index.html b/test/index.html
@@ -7,15 +7,28 @@
 </head>
 <body>
 <div id="mocha"></div>
+<script src="https://cdn.jsdelivr.net/npm/[email protected]/platform.min.js"></script>
+<script>
+  isLegacySafari = ((p) => {
+    const name = p.name;
+    const ver  = Number(p.version.split('.')[0]);
+    console.log(name, ver, p.description);
+    return (name === 'Safari' && ver <= 13);
+  })(platform);
+</script>
 <script src="https://unpkg.com/[email protected]/chai.js"></script>
 <script src="https://unpkg.com/[email protected]/mocha.js"></script>
 <script>mocha.setup('bdd')</script>
 <script type="module" src="./01-import.js"></script>
 <script type="module" src="./02-arithmetics.js"></script>
+<script type="module" src="./03-permutation.js"></script>
+<script type="module" src="./03-combination.js"></script>
+<script type="module" src="./03-basen.js"></script>
+<script type="module" src="./03-powerset.js"></script>
+<script type="module" src="./03-permcomb.js"></script>
 <script type="module">
   mocha.checkLeaks();
   mocha.run();
 </script>
 </body>
 </html>
-