test: added tests for undefined conditions

.editorconfig

@@ -0,0 +1,9 @@
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true

.gitignore

@@ -1,2 +1,6 @@
-build
+/build
+/coverage
 node_modules
+.DS_Store
+.env
+yarn-error.log

README.md

@@ -1,13 +1,16 @@
 <div align="center">
   <h1>parse-json-object</h1>
   <a href="https://npmjs.com/package/parse-json-object">
-    <img alt="npm" src="https://img.shields.io/npm/v/parse-json-object.svg">
+    <img alt="NPM" src="https://img.shields.io/npm/v/parse-json-object.svg">
   </a>
   <a href="https://github.com/bconnorwhite/parse-json-object">
-    <img alt="typescript" src="https://img.shields.io/github/languages/top/bconnorwhite/parse-json-object.svg">
+    <img alt="TypeScript" src="https://img.shields.io/github/languages/top/bconnorwhite/parse-json-object.svg">
+  </a>
+  <a href='https://coveralls.io/github/bconnorwhite/parse-json-object?branch=master'>
+    <img alt="Coverage Status" src="https://img.shields.io/coveralls/github/bconnorwhite/parse-json-object.svg?branch=master">
   </a>
   <a href="https://github.com/bconnorwhite/parse-json-object">
-    <img alt="GitHub stars" src="https://img.shields.io/github/stars/bconnorwhite/parse-json-object?label=Stars%20Appreciated%21&style=social">
+    <img alt="GitHub Stars" src="https://img.shields.io/github/stars/bconnorwhite/parse-json-object?label=Stars%20Appreciated%21&style=social">
   </a>
   <a href="https://twitter.com/bconnorwhite">
     <img alt="Twitter Follow" src="https://img.shields.io/twitter/follow/bconnorwhite.svg?label=%40bconnorwhite&style=social">
@@ -23,11 +26,11 @@
 
 ## Installation
 
-```bash
+```sh
 yarn add parse-json-object
 ```
 
-```bash
+```sh
 npm install parse-json-object
 ```
 
@@ -81,10 +84,11 @@ interface JSONArray extends Array<JSONValue> {};
 
 <h2>License <img align="right" alt="license" src="https://img.shields.io/npm/l/parse-json-object.svg"></h2>
 
-[MIT](https://mit-license.org/)
+[MIT](https://opensource.org/licenses/MIT)
 
 <br />
 
 ## Related Packages:
-- [stringify-json-object](https://www.npmjs.com/package/stringify-json-object): Stringify and format a JSON object.
+
+- [stringify-json-object](https://www.npmjs.com/package/stringify-json-object): Stringify and format a JSON object
 - [types-json](https://www.npmjs.com/package/types-json): Type checking for JSON objects

package.json

@@ -1,7 +1,7 @@
 {
   "name": "parse-json-object",
   "version": "2.0.0",
-  "description": "Parse a typed JSON object.",
+  "description": "Parse a typed JSON object",
   "license": "MIT",
   "author": {
     "name": "Connor White",
@@ -26,15 +26,26 @@
   "main": "./build/index.js",
   "scripts": {
     "build": "bob build",
-    "postversion": "git push",
-    "prepublishOnly": "yarn build && yarn test",
-    "test": "jest"
+    "commit": "bob commit",
+    "lint": "bob lint",
+    "release": "bob publish",
+    "test": "bob test"
   },
   "dependencies": {
     "types-json": "^1.2.0"
   },
   "devDependencies": {
-    "@bconnorwhite/bob": "^2.1.0",
-    "jest": "^26.4.2"
+    "@bconnorwhite/bob": "^2.9.2"
+  },
+  "eslintConfig": {
+    "extends": "eslint-config-bob"
+  },
+  "husky": {
+    "hooks": {
+      "commit-msg": "bob lint commit"
+    }
+  },
+  "npmpackagejsonlint": {
+    "extends": "npm-package-json-lint-config-bob"
   }
 }

source/index.ts

@@ -9,7 +9,7 @@ export function parse<T extends JSONValue>(text: string | undefined, isType: (va
       } else {
         return undefined;
       }
-    } catch(e) {
+    } catch(err) {
       return undefined;
     }
   } else {

test/index.test.ts

@@ -0,0 +1,38 @@
+import { test, expect } from "@jest/globals";
+import { parse, parseJSONValue, parseJSONObject, parseJSONArray, parseString, isJSONArray } from "../source";
+
+test("parse invalid", () => {
+  expect(parse('{"ok":true}', isJSONArray)).toBe(undefined);
+});
+
+test("parseJSONValue object", () => {
+  expect(parseJSONValue('{"ok":true}')).toEqual({ ok: true });
+});
+
+test("parseJSONValue array", () => {
+  expect(parseJSONValue('[{"ok":true}]')).toEqual([{ ok: true }]);
+});
+
+test("parseJSONValue string", () => {
+  expect(parseJSONValue('"ok"')).toBe("ok");
+});
+
+test("parseJSONValue undefined", () => {
+  expect(parseJSONValue(undefined)).toBe(undefined);
+});
+
+test("parseJSONValue invalid", () => {
+  expect(parseJSONValue("ok")).toBe(undefined);
+});
+
+test("parseJSONObject", () => {
+  expect(parseJSONObject('{"ok":true}')).toEqual({ ok: true });
+});
+
+test("parseJSONArray", () => {
+  expect(parseJSONArray('[{"ok":true}]')).toEqual([{ ok: true }]);
+});
+
+test("parseString", () => {
+  expect(parseString('"ok"')).toBe("ok");
+});

tsconfig.json

@@ -1,26 +1,17 @@
 {
+  "extends": "@bconnorwhite/bob",
   "compilerOptions": {
-    "declaration": true,
-    "emitDeclarationOnly": true,
-    "esModuleInterop": true,
-    "forceConsistentCasingInFileNames": true,
-    "jsx": "preserve",
-    "lib": [
-      "dom",
-      "esnext"
+    "rootDirs": [
+      "source",
+      "types"
     ],
-    "module": "esnext",
-    "moduleResolution": "node",
-    "noFallthroughCasesInSwitch": true,
-    "noUnusedLocals": true,
-    "outDir": "build",
-    "removeComments": true,
-    "resolveJsonModule": true,
-    "skipLibCheck": true,
-    "strict": true,
-    "target": "esnext"
+    "typeRoots": [
+      "node_modules/@types",
+      "types"
+    ]
   },
   "include": [
-    "source"
+    "source",
+    "types"
   ]
 }