test: sorting

.gitignore

@@ -4,3 +4,4 @@ node_modules
 /.svelte-kit
 /build
 /functions
+coverage

jest.config.cjs

@@ -0,0 +1,5 @@
+/** @type {import('ts-jest/dist/types').InitialOptionsTsJest} */
+module.exports = {
+  preset: 'ts-jest',
+  testEnvironment: 'node',
+};

package.json

@@ -7,11 +7,13 @@
 		"build": "svelte-kit build",
 		"preview": "svelte-kit preview",
 		"lint": "prettier --check . && eslint --ignore-path .gitignore .",
-		"format": "prettier --write ."
+		"format": "prettier --write .",
+		"test": "jest"
 	},
 	"devDependencies": {
 		"@sveltejs/adapter-static": "next",
 		"@sveltejs/kit": "next",
+		"@types/jest": "^27.0.1",
 		"@typescript-eslint/eslint-plugin": "^4.19.0",
 		"@typescript-eslint/parser": "^4.19.0",
 		"autoprefixer": "^10.3.1",
@@ -19,6 +21,7 @@
 		"eslint": "^7.22.0",
 		"eslint-config-prettier": "^8.1.0",
 		"eslint-plugin-svelte3": "^3.2.0",
+		"jest": "^27.1.0",
 		"mdsvex": "^0.9.3",
 		"postcss": "^8.3.5",
 		"postcss-load-config": "^3.1.0",
@@ -26,9 +29,10 @@
 		"prettier-plugin-svelte": "^2.2.0",
 		"svelte": "^3.38.2",
 		"svelte-preprocess": "^4.7.4",
+		"tailwindcss": "^2.2.4",
+		"ts-jest": "^27.0.5",
 		"tslib": "^2.0.0",
-		"typescript": "^4.0.0",
+		"typescript": "^4.4.2"
-		"tailwindcss": "^2.2.4"
 	},
 	"type": "module",
 	"dependencies": {

src/lib/utils/sort.test.ts

@@ -0,0 +1,58 @@
+import { compare } from './sort';
+
+describe("sort", () => {
+    const mock = [{
+        "addedOn": "2019-09-29T14:39:13Z",
+        "category": "Svelte",
+        "description": "Boilerplate with TypeScript, Webpack, Storybook, Travis CI, SCSS, Babel, EsLint, Prettier, Jest",
+        "stars": 51,
+        "tags": [],
+        "title": "agusID/boilerplate-svelte",
+        "url": "https://github.com/agusID/boilerplate-svelte"
+    },
+    {
+        "addedOn": "2020-09-29T14:39:13Z",
+        "category": "Svelte",
+        "description": "An example repo of a Svelte app that is IE11 compatible",
+        "stars": 27,
+        "tags": [],
+        "title": "angelozehr/svelte-example-museums",
+        "url": "https://github.com/angelozehr/svelte-example-museums"
+    }];
+    
+    it("should sort by added_desc", () => {
+        mock.sort(compare("added_desc"));
+        expect(mock[0].title).toEqual("angelozehr/svelte-example-museums");
+        expect(mock[1].title).toEqual("agusID/boilerplate-svelte");
+    });
+    
+    it("should sort by added_asc", () => {
+        mock.sort(compare("added_asc"));
+        expect(mock[0].title).toEqual("agusID/boilerplate-svelte");
+        expect(mock[1].title).toEqual("angelozehr/svelte-example-museums");
+    });
+    
+    it("should sort by name_asc", () => {
+        mock.sort(compare("name_asc"));
+        expect(mock[0].title).toEqual("agusID/boilerplate-svelte");
+        expect(mock[1].title).toEqual("angelozehr/svelte-example-museums");
+    });
+    
+    it("should sort by name_desc", () => {
+        mock.sort(compare("name_desc"));
+        expect(mock[0].title).toEqual("angelozehr/svelte-example-museums");
+        expect(mock[1].title).toEqual("agusID/boilerplate-svelte");
+    });
+    
+    it("should sort by stars_asc", () => {
+        mock.sort(compare("stars_asc"));
+        expect(mock[0].title).toEqual("angelozehr/svelte-example-museums");
+        expect(mock[1].title).toEqual("agusID/boilerplate-svelte");
+    });
+    
+    it("should sort by stars_desc", () => {
+        mock.sort(compare("stars_desc"));
+        expect(mock[0].title).toEqual("agusID/boilerplate-svelte");
+        expect(mock[1].title).toEqual("angelozehr/svelte-example-museums");
+    });
+});