diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /devtools/client/debugger/src/utils/tests/memoize.spec.js | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'devtools/client/debugger/src/utils/tests/memoize.spec.js')
-rw-r--r-- | devtools/client/debugger/src/utils/tests/memoize.spec.js | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/devtools/client/debugger/src/utils/tests/memoize.spec.js b/devtools/client/debugger/src/utils/tests/memoize.spec.js new file mode 100644 index 0000000000..fb72958516 --- /dev/null +++ b/devtools/client/debugger/src/utils/tests/memoize.spec.js @@ -0,0 +1,48 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */ + +import memoize from "../memoize"; + +const a = { number: 3 }; +const b = { number: 4 }; +const c = { number: 5 }; +const d = { number: 6 }; + +function add(...numberObjects) { + return numberObjects.reduce((prev, cur) => prev + cur.number, 0); +} + +describe("memozie", () => { + it("should work for one arg as key", () => { + const mAdd = memoize(add); + mAdd(a); + expect(mAdd(a)).toEqual(3); + mAdd(b); + expect(mAdd(b)).toEqual(4); + }); + + it("should only be called once", () => { + const spy = jest.fn(() => 2); + const mAdd = memoize(spy); + + mAdd(a); + mAdd(a); + mAdd(a); + expect(spy).toHaveBeenCalledTimes(1); + }); + + it("should work for two args as key", () => { + const mAdd = memoize(add); + expect(mAdd(a, b)).toEqual(7); + expect(mAdd(a, b)).toEqual(7); + expect(mAdd(a, c)).toEqual(8); + }); + + it("should work with many args as key", () => { + const mAdd = memoize(add); + expect(mAdd(a, b, c)).toEqual(12); + expect(mAdd(a, b, d)).toEqual(13); + expect(mAdd(a, b, c)).toEqual(12); + }); +}); |