larry babby and threejs for glsl

webGl/my-threejs-test/node_modules/@parcel/utils/test/throttle.test.js

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+// @flow strict-local
+
+import assert from 'assert';
+import sinon from 'sinon';
+import throttle from '../src/throttle';
+
+describe('throttle', () => {
+  it("doesn't invoke a function more than once in a given interval", () => {
+    let spy = sinon.spy();
+    let throttled = throttle(spy, 100);
+
+    throttled(1);
+    throttled(2);
+    throttled(3);
+
+    assert(spy.calledOnceWithExactly(1));
+  });
+
+  it('calls the underlying function again once the interval has passed', () => {
+    let time = sinon.useFakeTimers();
+    let spy = sinon.spy();
+    let throttled = throttle(spy, 100);
+
+    throttled(1);
+    throttled(2);
+    throttled(3);
+
+    time.tick(100);
+    throttled(4);
+    assert.deepEqual(spy.args, [[1], [4]]);
+
+    time.restore();
+  });
+
+  it('preserves the `this` when throttled functions are invoked', () => {
+    let result;
+    let throttled = throttle(function () {
+      result = this.bar;
+    }, 100);
+
+    throttled.call({bar: 'baz'});
+    assert(result === 'baz');
+  });
+});