mirror of https://github.com/zulip/zulip.git
47 lines
1.1 KiB
JavaScript
47 lines
1.1 KiB
JavaScript
"use strict";
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const {strict: assert} = require("assert");
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// Stubs don't do any magical modifications to your namespace. They
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// just provide you a function that records what arguments get passed
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// to it. To use stubs as something more like "spies," use something
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// like set_global() to override your namespace.
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exports.make_stub = function () {
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const self = {};
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self.num_calls = 0;
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self.f = function (...args) {
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self.last_call_args = args;
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self.num_calls += 1;
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return true;
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};
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self.get_args = function (...param_names) {
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const result = {};
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for (const [i, name] of param_names.entries()) {
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result[name] = self.last_call_args[i];
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}
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return result;
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};
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return self;
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};
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exports.with_stub = function (f) {
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const stub = exports.make_stub();
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f(stub);
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assert.equal(stub.num_calls, 1);
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};
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(function test_ourselves() {
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exports.with_stub((stub) => {
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stub.f("blue", 42);
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const args = stub.get_args("color", "n");
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assert.equal(args.color, "blue");
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assert.equal(args.n, 42);
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});
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})();
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