import { describe, expect, it } from "vitest";
import { parseGoBuildTags } from "./go-build-tags.ts";

describe("parseGoBuildTags", () => {
	it.each([["contract,e2e"], ["contract,e2e_v2,go1.22"]])(
		"normalizes valid comma-separated Go build tags: %j",
		(tags: string) => {
			expect(parseGoBuildTags(tags)).toBe(tags);
		},
	);

	it("treats undefined and empty input as no build tags", () => {
		expect(parseGoBuildTags()).toBeUndefined();
		expect(parseGoBuildTags("")).toBeUndefined();
	});

	it.each(["contract e2e", "contract, e2e"])(
		"rejects tags containing spaces: %j",
		(tags: string) => {
			expect(() => parseGoBuildTags(tags)).toThrow();
		},
	);

	it.each([
		"contract;e2e",
		"contract|e2e",
		"contract&e2e",
		"contract$(e2e)",
		"`contract`",
	])("rejects shell metacharacters: %j", (tags: string) => {
		expect(() => parseGoBuildTags(tags)).toThrow();
	});

	it.each(["contract,,e2e", ",contract", "contract,"])(
		"rejects empty tag segments: %j",
		(tags: string) => {
			expect(() => parseGoBuildTags(tags)).toThrow();
		},
	);
});