24 lines
631 B
JavaScript
24 lines
631 B
JavaScript
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const Module = require('module');
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const originalRequireFn = Module.prototype.require;
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/**
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* helper fn to mock non-existent modules
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* mocks.modules.mockNonExistentModule(/pattern/, mockedModule)
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*/
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exports.mockNonExistentModule = (modulePath, module, error = false) => {
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Module.prototype.require = function (path) {
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if (path.match(modulePath)) {
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if (error) {
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throw module;
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}
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return module;
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}
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return originalRequireFn.apply(this, arguments);
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};
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};
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exports.unmockNonExistentModule = () => {
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Module.prototype.require = originalRequireFn;
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};
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