zulip/frontend_tests/node_tests/fold_dict.js

103 lines
2.3 KiB
JavaScript

"use strict";
const {strict: assert} = require("assert");
const {zrequire} = require("../zjsunit/namespace");
const {run_test} = require("../zjsunit/test");
const {FoldDict} = zrequire("fold_dict");
run_test("basic", () => {
const d = new FoldDict();
assert.equal(d.size, 0);
assert.deepEqual(Array.from(d.keys()), []);
d.set("foo", "bar");
assert.equal(d.get("foo"), "bar");
assert.notEqual(d.size, 0);
d.set("foo", "baz");
assert.equal(d.get("foo"), "baz");
assert.equal(d.size, 1);
d.set("bar", "qux");
assert.equal(d.get("foo"), "baz");
assert.equal(d.get("bar"), "qux");
assert.equal(d.size, 2);
assert.equal(d.has("bar"), true);
assert.equal(d.has("baz"), false);
assert.deepEqual(Array.from(d.keys()), ["foo", "bar"]);
assert.deepEqual(Array.from(d.values()), ["baz", "qux"]);
assert.deepEqual(Array.from(d), [
["foo", "baz"],
["bar", "qux"],
]);
d.delete("bar");
assert.equal(d.has("bar"), false);
assert.strictEqual(d.get("bar"), undefined);
assert.deepEqual(Array.from(d.keys()), ["foo"]);
const val = ["foo"];
const res = d.set("abc", val);
assert.strictEqual(res, d);
});
run_test("case insensitivity", () => {
const d = new FoldDict();
assert.deepEqual(Array.from(d.keys()), []);
assert(!d.has("foo"));
d.set("fOO", "Hello world");
assert.equal(d.get("foo"), "Hello world");
assert(d.has("foo"));
assert(d.has("FOO"));
assert(!d.has("not_a_key"));
assert.deepEqual(Array.from(d.keys()), ["fOO"]);
d.delete("Foo");
assert.equal(d.has("foo"), false);
assert.deepEqual(Array.from(d.keys()), []);
});
run_test("clear", () => {
const d = new FoldDict();
function populate() {
d.set("fOO", 1);
assert.equal(d.get("foo"), 1);
d.set("bAR", 2);
assert.equal(d.get("bar"), 2);
}
populate();
assert.equal(d.size, 2);
d.clear();
assert.equal(d.get("fOO"), undefined);
assert.equal(d.get("bAR"), undefined);
assert.equal(d.size, 0);
// make sure it still works after clearing
populate();
assert.equal(d.size, 2);
});
run_test("undefined_keys", () => {
const d = new FoldDict();
assert.throws(
() => d.has(undefined),
TypeError,
"Tried to call a FoldDict method with an undefined key.",
);
});