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Lua: vim.validate()

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We often want to do type checking of public function arguments.

- test: Rename utility_function_spec.lua to vim_spec.lua
- .luacov: Map lua module names
This commit is contained in:
Hirokazu Hata
2019-10-28 20:52:18 +09:00
committed by Justin M. Keyes
parent b9c9283f72
commit 678a51b1da
3 changed files with 130 additions and 0 deletions
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53
test/functional/lua/utility_functions_spec.lua → test/functional/lua/vim_spec.lua
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@@ -402,4 +402,57 @@ describe('lua stdlib', function()
feed('<cr>')
eq({3, NIL}, meths.get_var('yy'))
end)
it('vim.validate', function()
eq(NIL, exec_lua("vim.validate({ arg1={ {}, 'table' }})"))
eq(NIL, exec_lua("vim.validate({ arg1={ {}, 't' }})"))
eq(NIL, exec_lua("vim.validate({ arg1={ nil, 't', true }})"))
eq(NIL, exec_lua("vim.validate({ arg1={ { foo='foo' }, 't' }})"))
eq(NIL, exec_lua("vim.validate({ arg1={ { 'foo' }, 't' }})"))
eq(NIL, exec_lua("vim.validate({ arg1={ 'foo', 'string' }})"))
eq(NIL, exec_lua("vim.validate({ arg1={ 'foo', 's' }})"))
eq(NIL, exec_lua("vim.validate({ arg1={ '', 's' }})"))
eq(NIL, exec_lua("vim.validate({ arg1={ nil, 's', true }})"))
eq(NIL, exec_lua("vim.validate({ arg1={ 1, 'number' }})"))
eq(NIL, exec_lua("vim.validate({ arg1={ 1, 'n' }})"))
eq(NIL, exec_lua("vim.validate({ arg1={ 0, 'n' }})"))
eq(NIL, exec_lua("vim.validate({ arg1={ 0.1, 'n' }})"))
eq(NIL, exec_lua("vim.validate({ arg1={ nil, 'n', true }})"))
eq(NIL, exec_lua("vim.validate({ arg1={ true, 'boolean' }})"))
eq(NIL, exec_lua("vim.validate({ arg1={ true, 'b' }})"))
eq(NIL, exec_lua("vim.validate({ arg1={ false, 'b' }})"))
eq(NIL, exec_lua("vim.validate({ arg1={ nil, 'b', true }})"))
eq(NIL, exec_lua("vim.validate({ arg1={ function()end, 'function' }})"))
eq(NIL, exec_lua("vim.validate({ arg1={ function()end, 'f' }})"))
eq(NIL, exec_lua("vim.validate({ arg1={ nil, 'f', true }})"))
eq(NIL, exec_lua("vim.validate({ arg1={ nil, 'nil' }})"))
eq(NIL, exec_lua("vim.validate({ arg1={ nil, 'nil', true }})"))
eq(NIL, exec_lua("vim.validate({ arg1={ coroutine.create(function()end), 'thread' }})"))
eq(NIL, exec_lua("vim.validate({ arg1={ nil, 'thread', true }})"))
eq(NIL, exec_lua("vim.validate({ arg1={ {}, 't' } }, { arg2={ 'foo', 's' }})"))
eq(NIL, exec_lua("vim.validate({ arg1={ {}, 't' }, arg2={ 'foo', 's' }})"))
eq(NIL, exec_lua("vim.validate({ arg1={ 2, function(a) return (a % 2) == 0 end, 'even number' }})"))
eq("Error executing lua: .../shared.lua: arg1: expected table, got number", pcall_err(exec_lua, "vim.validate({ arg1={ 1, 't' }})"))
eq("Error executing lua: .../shared.lua: arg2: expected string, got number", pcall_err(exec_lua, "vim.validate({ arg1={ {}, 't' }, arg2={ 1, 's' }})"))
eq("Error executing lua: .../shared.lua: arg2: expected string, got nil", pcall_err(exec_lua, "vim.validate({ arg1={ {}, 't' }, arg2={ nil, 's' }})"))
eq("Error executing lua: .../shared.lua: arg2: expected string, got nil", pcall_err(exec_lua, "vim.validate({ arg1={ {}, 't' }, arg2={ nil, 's' }})"))
eq("Error executing lua: .../shared.lua: arg1: expected even number, got 3", pcall_err(exec_lua, "vim.validate({ arg1={ 3, function(a) return a == 1 end, 'even number' }})"))
end)
it('vim.is_callable', function()
eq(true, exec_lua("return vim.is_callable(function()end)"))
eq(true, exec_lua([[
local meta = { __call = function()end }
local function new_callable()
return setmetatable({}, meta)
end
local callable = new_callable()
return vim.is_callable(callable)
]]))
eq(false, exec_lua("return vim.is_callable(1)"))
eq(false, exec_lua("return vim.is_callable('foo')"))
eq(false, exec_lua("return vim.is_callable({})"))
end)
end)