43 lines
1.2 KiB
JavaScript
43 lines
1.2 KiB
JavaScript
var Memoizerific = require('../src/memoizerific');
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describe("null args", () => {
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var memoizedFn,
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arg1 = null,
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arg2 = undefined,
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arg3 = NaN; // important to test since NaN does not equal NaN
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beforeEach(function() {
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memoizedFn = Memoizerific(50)(function(arg1, arg2, arg3) {
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return '';
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});
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memoizedFn(arg1, arg2, arg3);
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});
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it("should be map or similar", () => { expect(memoizedFn.cache instanceof Map).toEqual(process.env.FORCE_SIMILAR_INSTEAD_OF_MAP !== 'true'); });
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it("should not be memoized", () => {
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expect(memoizedFn.wasMemoized).toEqual(false);
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expect(memoizedFn.lru.length).toEqual(1);
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});
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it("should be memoized", () => {
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memoizedFn(arg1, arg2, arg3);
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expect(memoizedFn.wasMemoized).toEqual(true);
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expect(memoizedFn.lru.length).toEqual(1);
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});
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it("should have multiple cached items", () => {
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memoizedFn(arg1, arg2, arg3);
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expect(memoizedFn.wasMemoized).toEqual(true);
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memoizedFn(arg1, arg2, 1);
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expect(memoizedFn.wasMemoized).toEqual(false);
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expect(memoizedFn.lru.length).toEqual(2);
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});
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it("should not confuse undefined and null", () => {
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memoizedFn(arg2, arg1, arg3);
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expect(memoizedFn.wasMemoized).toEqual(false);
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expect(memoizedFn.lru.length).toEqual(2);
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});
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});
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