color-2-name/tests/colors_rgb.test.ts

Finds the closest color name to a given hex, rgb and hsl color (with and without alpha). It uses the Euclidean distance formula to calculate the distance between colors in the RGB color space

/**
 * COMMON FUNCTIONS TESTING:
 */
import { describe, expect, it, vi } from "vitest";
import { parseColor } from "../src/index.js";
import { RGB, getRgbValues, parseRgb } from "../src/rgb-utils.js";
import { normalizeRGB } from "./fixtures/functions.js";
import { rgb_invalid_tests, rgb_valid_tests } from "./fixtures/rgb_colors.js";

describe("RGB COMMON", () => {
	// RGB
	it("Returns the correct rgb representation of the given RGB color", () => {
		expect(parseColor("rgb(255,255,255)")).toMatchObject({
			r: 255,
			g: 255,
			b: 255,
		});
		expect(parseColor("rgb(255, 255, 255,.5)")).toMatchObject({
			r: 255,
			g: 255,
			b: 255,
		});
		expect(parseColor("rgb(255 255 255)")).toMatchObject({
			r: 255,
			g: 255,
			b: 255,
		});
		expect(parseColor("rgb(255 255 255 / .5)")).toMatchObject({
			r: 255,
			g: 255,
			b: 255,
		});
		expect(parseColor("rgba(255 255 255 / 0.1)")).toMatchObject({
			r: 255,
			g: 255,
			b: 255,
		});
	});
});

/**
 * RGB FUNCTIONS TESTING:
 */
describe("RGB", () => {
	describe("RGB Color Parsing and Conversion", () => {
		for (const [rgbString, expectedRgbString, description] of rgb_valid_tests) {
			it(
				description || `Parses RGB: ${rgbString} to RGB: ${expectedRgbString}`,
				() => {
					expect(RGB(getRgbValues(parseRgb(rgbString)))).toBe(
						normalizeRGB(expectedRgbString),
					);
				},
			);
		}
	});

	describe("Invalid RGB Color Parsing", () => {
		console.warn = vi.fn();
		for (const [rgbString, expectedErrorMessage] of rgb_invalid_tests) {
			it(`Fails to Parse Invalid RGB: ${rgbString} ${expectedErrorMessage}`, () => {
				RGB(getRgbValues(parseRgb(rgbString)));
				expect(console.warn).toBeCalled();
			});
		}
	});
});