64 lines
2.5 KiB
TypeScript
64 lines
2.5 KiB
TypeScript
/*
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Copyright 2022 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import { SnakedObject, snakeToCamel } from "../../src/utils/SnakedObject";
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describe("snakeToCamel", () => {
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it("should convert snake_case to camelCase in simple scenarios", () => {
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expect(snakeToCamel("snake_case")).toBe("snakeCase");
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expect(snakeToCamel("snake_case_but_longer")).toBe("snakeCaseButLonger");
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expect(snakeToCamel("numbered_123")).toBe("numbered123"); // not a thing we would see normally
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});
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// Not really something we expect to see, but it's defined behaviour of the function
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it("should not camelCase a trailing or leading underscore", () => {
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expect(snakeToCamel("_snake")).toBe("_snake");
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expect(snakeToCamel("snake_")).toBe("snake_");
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expect(snakeToCamel("_snake_case")).toBe("_snakeCase");
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expect(snakeToCamel("snake_case_")).toBe("snakeCase_");
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});
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// Another thing we don't really expect to see, but is "defined behaviour"
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it("should be predictable with double underscores", () => {
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expect(snakeToCamel("__snake__")).toBe("_Snake_");
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expect(snakeToCamel("snake__case")).toBe("snake_case");
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});
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});
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describe("SnakedObject", () => {
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/* eslint-disable camelcase*/
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const input = {
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snake_case: "woot",
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snakeCase: "oh no", // ensure different value from snake_case for tests
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camelCase: "fallback",
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};
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const snake = new SnakedObject(input);
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/* eslint-enable camelcase*/
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it("should prefer snake_case keys", () => {
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expect(snake.get("snake_case")).toBe(input.snake_case);
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expect(snake.get("snake_case", "camelCase")).toBe(input.snake_case);
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});
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it("should fall back to camelCase keys when needed", () => {
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// @ts-ignore - we're deliberately supplying a key that doesn't exist
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expect(snake.get("camel_case")).toBe(input.camelCase);
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// @ts-ignore - we're deliberately supplying a key that doesn't exist
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expect(snake.get("e_no_exist", "camelCase")).toBe(input.camelCase);
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});
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});
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