test: allCharactersSame, binary2Decimal, getVersion, and isObjectEmpty …

…#96

src/binary2Decimal.js

@@ -1,13 +1,12 @@
 /**
- * Convert a number/string to a decimal
+ * Convert a binary number to a decimal
  * 
  * @example
- * binary2Decimal(101010); // 42
+ * binary2Decimal("101010"); // 42
  * 
- * @param {number|string} binary - the number/string to be converted
+ * @param {string} binary - the value to be converted
  * @returns {number} - conversion decimal
  */
 export function binary2Decimal(binary) {
-	if (typeof binary === "string") return parseInt(binary.split("").reverse().join(""), 2);
-	else if (typeof binary === "number") return parseInt(binary, 2);
+	if (typeof binary === "string") return parseInt(binary, 2);
 }

src/index.js

@@ -18,6 +18,7 @@ import { FIFO } from "./FIFO.js";
 import { getUrlParameter } from "./getUrlParameter.js";
 import { getVersion } from "./getVersion.js";
 import { invertSentence, invertWords } from "./invertText.js";
+import { isObjectEmpty } from "./isObjectEmpty.js";
 import { isFalsy, isTruthy } from "./isTruthyFalsy.js";
 import { stringToKebabCase, kebabCaseToNormal } from "./kebabCase.js";
 import { and, or, xor } from "./logicalOperators.js";
@@ -55,6 +56,7 @@ export {
 	getUrlParameter,
 	getVersion,
 	invertSentence, invertWords,
+	isObjectEmpty,
 	isFalsy, isTruthy,
 	stringToKebabCase, kebabCaseToNormal,
 	and, or, xor, // logicalOperators

tests/allCharactersSame.test.js

@@ -0,0 +1,17 @@
+import { allCharactersSame } from "../src/index";
+
+describe("allCharactersSame.js", () => {
+	test("if all characters of a string are equal", () => {
+		expect(allCharactersSame("beep")).toBe(false);
+		expect(allCharactersSame("")).toBe(true);
+		expect(allCharactersSame("b")).toBe(true);
+		expect(allCharactersSame("aaaaaaaaaaaa")).toBe(true);
+	});
+
+	test("if all characters of a array are equal", () => {
+		expect(allCharactersSame(["a", "a"])).toBe(true);
+		expect(allCharactersSame(["beep", "beep"])).toBe(true);
+		expect(allCharactersSame(["a", "b"])).toBe(false);
+		expect(allCharactersSame([1, 2])).toBe(false);
+	});
+});

tests/binary2Decimal.test.js

@@ -0,0 +1,7 @@
+import { binary2Decimal } from "../src/index";
+
+describe("binary2Decimal.js", () => {
+	it("should return 42 for '101010'", () => {
+		expect(binary2Decimal("101010")).toBe(42);
+	});
+});

tests/getVersion.test.js

@@ -0,0 +1,8 @@
+import { getVersion } from "../src/index";
+import Package from "../package.json";
+
+describe("getVersion.js", () => {
+	it("should return the current lib version", () => {
+		expect(getVersion()).toBe(Package.version);
+	});
+});

tests/isObjectEmpty.test.js

@@ -0,0 +1,13 @@
+import { isObjectEmpty } from "../src/index";
+
+describe("isObjectEmpty.js", () => {
+	it("should return true for the empties object", () => {
+		expect(isObjectEmpty([])).toBe(true);
+		expect(isObjectEmpty({})).toBe(true);
+	});
+
+	it("should return false for the non empties object", () => {
+		expect(isObjectEmpty([1, 2])).toBe(false);
+		expect(isObjectEmpty({ beep: "Boop" })).toBe(false);
+	});
+});