File

spec/util_argparse_spec.lua @ 13032:ea4923bebca9

util.array: Change tostring format to [a,b,c] Arrays in Lua do use { } but since __tostring is often user-facing it seems sensible to use [ ] instead for consistency with many other systems; as well as to allow the {a,b,c} formatting to be used by util.set without being confused with util.array.
author Kim Alvefur <zash@zash.se>
date Thu, 06 Apr 2023 16:27:37 +0200 (23 months ago)
parent 12477:cc84682b8429
child 13160:4ee9a912ceea
line wrap: on
line source
describe("parse", function()
	local parse
	setup(function() parse = require"util.argparse".parse; end);

	it("works", function()
		-- basic smoke test
		local opts = parse({ "--help" });
		assert.same({ help = true }, opts);
	end);

	it("returns if no args", function() assert.same({}, parse({})); end);

	it("supports boolean flags", function()
		local opts, err = parse({ "--foo"; "--no-bar" });
		assert.falsy(err);
		assert.same({ foo = true; bar = false }, opts);
	end);

	it("consumes input until the first argument", function()
		local arg = { "--foo"; "bar"; "--baz" };
		local opts, err = parse(arg);
		assert.falsy(err);
		assert.same({ foo = true, "bar", "--baz" }, opts);
		assert.same({ "bar"; "--baz" }, arg);
	end);

	it("expands short options", function()
		local opts, err = parse({ "--foo"; "-b" }, { short_params = { b = "bar" } });
		assert.falsy(err);
		assert.same({ foo = true; bar = true }, opts);
	end);

	it("supports value arguments", function()
		local opts, err = parse({ "--foo"; "bar"; "--baz=moo" }, { value_params = { foo = true; bar = true } });
		assert.falsy(err);
		assert.same({ foo = "bar"; baz = "moo" }, opts);
	end);

	it("demands values for value params", function()
		local opts, err, where = parse({ "--foo" }, { value_params = { foo = true } });
		assert.falsy(opts);
		assert.equal("missing-value", err);
		assert.equal("--foo", where);
	end);

	it("reports where the problem is", function()
		local opts, err, where = parse({ "-h" });
		assert.falsy(opts);
		assert.equal("param-not-found", err);
		assert.equal("-h", where, "returned where");
	end);

end);