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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 }, 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);
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