test: add tests for getCldImageUrl (#162)

Co-authored-by: Willow (GHOST) <ghostdevbusiness@gmail.com>

Author: moonlander101

packages/svelte-cloudinary/tests/GetCldImageUrl/GetCldImageUrl.test.ts

@@ -0,0 +1,94 @@
+import { describe, it, expect } from 'vitest';
+import { getCldImageUrl } from '$src/helpers/getCldImageUrl';
+import type { ConfigOptions, ImageOptions } from '@cloudinary-util/url-loader';
+
+describe('getCldImageUrl', () => {
+	it('should generate a Cloudinary URL with basic image options', () => {
+		const options: ImageOptions = {
+			src: 'sample',
+			width: 300,
+			height: 200,
+		};
+
+		const config: ConfigOptions = {
+			cloud: { cloudName: 'testing' },
+		};
+
+		const url = getCldImageUrl(options, config);
+
+		expect(url).toContain('https://res.cloudinary.com/testing');
+		expect(url).toContain('w_300');
+		expect(url).toContain('h_200');
+		expect(url).toContain('sample');
+		expect(url).toContain('f_auto');
+		expect(url).toContain('q_auto');
+	});
+
+	it('should apply default crop values when no crop option is provided', () => {
+		const options: ImageOptions = {
+			src: 'sample',
+			width: 300,
+			height: 200,
+		};
+
+		const config: ConfigOptions = {
+			cloud: { cloudName: 'testing' },
+		};
+
+		const url = getCldImageUrl(options, config);
+
+		expect(url).toContain('c_fill');
+		expect(url).toContain('g_center');
+	});
+
+	it('should apply custom crop values when provided', () => {
+		const options: ImageOptions = {
+			src: 'sample',
+			width: 300,
+			height: 200,
+			crop: {
+				type: 'fit',
+			},
+		};
+
+		const config: ConfigOptions = {
+			cloud: { cloudName: 'testing' },
+		};
+
+		const url = getCldImageUrl(options, config);
+
+		expect(url).toContain('c_fit');
+	});
+
+	it('should throw an error when the cloud name is missing from the config', () => {
+		const options: ImageOptions = {
+			src: 'sample',
+			width: 300,
+			height: 200,
+		};
+
+		const configOverride: ConfigOptions = {
+			cloud: { cloudName: '' }, // Missing cloud name
+		};
+
+		expect(() => getCldImageUrl(options, configOverride)).toThrowError(
+			'[svelte-cloudinary] unable to find a cloud name',
+		);
+	});
+
+	it('should override global config with the provided configOverride', () => {
+		const options: ImageOptions = {
+			src: 'sample',
+			width: 300,
+			height: 200,
+		};
+
+		const configOverride: ConfigOptions = {
+			cloud: { cloudName: 'override-cloud' },
+		};
+
+		const url = getCldImageUrl(options, configOverride);
+
+		expect(url).toContain('https://res.cloudinary.com/override-cloud');
+	});
+});