Stefan Hacker
39 lines
1.7 KiB
JavaScript
39 lines
1.7 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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var tslib_1 = require("tslib");
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var React = require("react");
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var createMergedRef_1 = require("./createMergedRef");
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var react_1 = require("@testing-library/react");
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describe('createMergedRef', function () {
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it('can merge refs', function () {
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var ref1 = React.createRef();
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var Foo = /** @class */ (function (_super) {
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tslib_1.__extends(Foo, _super);
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function Foo() {
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var _this = _super !== null && _super.apply(this, arguments) || this;
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_this.mergedRef = (0, createMergedRef_1.createMergedRef)();
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return _this;
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}
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Foo.prototype.render = function () {
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return React.createElement("div", { ref: this.mergedRef(this.props.domRef, ref1) });
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};
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return Foo;
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}(React.Component));
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var ref2 = React.createRef();
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var wrapper = (0, react_1.render)(React.createElement(Foo, { domRef: ref2 }));
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expect(ref1.current).toBeTruthy();
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expect(ref2.current).toBeTruthy();
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wrapper.unmount();
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expect(ref1.current).toBeNull();
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expect(ref2.current).toBeNull();
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});
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it('returns the same ref object with the same input twice', function () {
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var mergedRef = (0, createMergedRef_1.createMergedRef)();
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expect(mergedRef()).toBe(mergedRef());
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});
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it('should return a new resolver if the refs change', function () {
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var mergedRef = (0, createMergedRef_1.createMergedRef)();
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expect(mergedRef(null)).not.toBe(mergedRef(React.createRef()));
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});
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});
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//# sourceMappingURL=createMergedRef.test.js.map
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