larry babby and threejs for glsl

webGl/my-threejs-test/node_modules/@parcel/graph/test/BitSet.test.js

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+// @flow strict-local
+
+import assert from 'assert';
+import {BitSet} from '../src/BitSet';
+
+function assertValues(set: BitSet, values: Array<number>) {
+  let setValues = [];
+  set.forEach(bit => {
+    setValues.push(bit);
+  });
+
+  for (let value of values) {
+    assert(set.has(value), 'Set.has returned false');
+    assert(
+      setValues.some(v => v === value),
+      'Set values is missing value',
+    );
+  }
+
+  assert(
+    setValues.length === values.length,
+    `Expected ${values.length} values but got ${setValues.length}`,
+  );
+}
+
+describe('BitSet', () => {
+  it('clone should return a set with the same values', () => {
+    let set1 = new BitSet(5);
+    set1.add(1);
+    set1.add(3);
+
+    let set2 = set1.clone();
+
+    assertValues(set2, [1, 3]);
+  });
+
+  it('clear should remove all values from the set', () => {
+    let set1 = new BitSet(5);
+    set1.add(1);
+    set1.add(3);
+
+    set1.clear();
+
+    assertValues(set1, []);
+  });
+
+  it('delete should remove values from the set', () => {
+    let set1 = new BitSet(5);
+    set1.add(1);
+    set1.add(3);
+    set1.add(5);
+
+    set1.delete(3);
+
+    assertValues(set1, [1, 5]);
+  });
+
+  it('empty should check if there are no values set', () => {
+    let set1 = new BitSet(5);
+
+    assert(set1.empty());
+
+    set1.add(3);
+    assert(!set1.empty());
+
+    set1.delete(3);
+    assert(set1.empty());
+  });
+
+  it('should intersect with another BitSet', () => {
+    let set1 = new BitSet(5);
+    set1.add(1);
+    set1.add(3);
+
+    let set2 = new BitSet(5);
+    set2.add(3);
+    set2.add(5);
+
+    set1.intersect(set2);
+    assertValues(set1, [3]);
+  });
+
+  it('should union with another BitSet', () => {
+    let set1 = new BitSet(5);
+    set1.add(1);
+    set1.add(3);
+
+    let set2 = new BitSet(5);
+    set2.add(3);
+    set2.add(5);
+
+    set1.union(set2);
+    assertValues(set1, [1, 3, 5]);
+  });
+
+  it('BitSet.union should create a new BitSet with the union', () => {
+    let set1 = new BitSet(5);
+    set1.add(1);
+    set1.add(3);
+
+    let set2 = new BitSet(5);
+    set2.add(3);
+    set2.add(5);
+
+    let set3 = BitSet.union(set1, set2);
+    assertValues(set1, [1, 3]);
+    assertValues(set2, [3, 5]);
+    assertValues(set3, [1, 3, 5]);
+  });
+});