mirror of
https://github.com/TangentFoxy/argparse.git
synced 2025-07-28 02:52:20 +00:00
247c8a9cce
* Use state objects instead of tons of locals in the main
function.
* Use actions for storing arguments into result table.
Actions are now called at the end of each invocation,
with result table, target index, arguments and overwrite flag as
arguments.
* Remove command actions.
* Improve error messages, refer to options by the last used alias
instead of the main name.
TODO:
* Improve error messages further ("argument 'foo' is required"
-> "missing argument 'foo'", etc.).
* Add actions for positional arguments.
* Add actions for commands (should be called with final results
after parsing is over, in "innermost first" order).
* Allow referring to built-in actions by strings a-la Python
(e.g. action = "store_false").
* Allow setting initial value to be stored at target index
for each option (perhaps use default value for that).
* Add more tests, particularly for actions.
28 lines
927 B
Lua
28 lines
927 B
Lua
local Parser = require "argparse"
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getmetatable(Parser()).error = function(_, msg) error(msg) end
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describe("tests related to :pparse()", function()
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it("returns true and result on success", function()
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local parser = Parser()
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parser:option "-s --server"
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local ok, args = parser:pparse{"--server", "foo"}
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assert.is_true(ok)
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assert.same({server = "foo"}, args)
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end)
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it("returns false and bare error message on failure", function()
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local parser = Parser()
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parser:argument "foo"
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local ok, errmsg = parser:pparse{}
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assert.is_false(ok)
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assert.equal("argument 'foo' is required", errmsg)
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end)
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it("rethrows errors from callbacks", function()
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local parser = Parser()
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parser:flag "--foo"
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:action(function() error("some error message") end)
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assert.error_matches(function() parser:pparse{"--foo"} end, "some error message")
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end)
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end)
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