mirror of
https://github.com/neovim/neovim.git
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322 lines
11 KiB
Lua
322 lines
11 KiB
Lua
local helpers = require('test.functional.helpers')(after_each)
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local eq = helpers.eq
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local NIL = helpers.NIL
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local eval = helpers.eval
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local clear = helpers.clear
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local meths = helpers.meths
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local funcs = helpers.funcs
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local source = helpers.source
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local dedent = helpers.dedent
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local command = helpers.command
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local exc_exec = helpers.exc_exec
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local redir_exec = helpers.redir_exec
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describe(':echo', function()
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before_each(function()
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clear()
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source([[
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function String(s)
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return execute('echo a:s')[1:]
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endfunction
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]])
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end)
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describe('used to represent floating-point values', function()
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it('dumps NaN values', function()
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eq('str2float(\'nan\')', eval('String(str2float(\'nan\'))'))
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end)
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it('dumps infinite values', function()
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eq('str2float(\'inf\')', eval('String(str2float(\'inf\'))'))
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eq('-str2float(\'inf\')', eval('String(str2float(\'-inf\'))'))
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end)
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it('dumps regular values', function()
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eq('1.5', funcs.String(1.5))
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eq('1.56e-20', funcs.String(1.56000e-020))
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eq('0.0', eval('String(0.0)'))
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end)
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it('dumps special v: values', function()
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eq('v:true', eval('String(v:true)'))
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eq('v:false', eval('String(v:false)'))
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eq('v:null', eval('String(v:null)'))
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eq('v:true', funcs.String(true))
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eq('v:false', funcs.String(false))
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eq('v:null', funcs.String(NIL))
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end)
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it('dumps values with at most six digits after the decimal point',
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function()
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eq('1.234568e-20', funcs.String(1.23456789123456789123456789e-020))
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eq('1.234568', funcs.String(1.23456789123456789123456789))
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end)
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it('dumps values with at most seven digits before the decimal point',
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function()
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eq('1234567.891235', funcs.String(1234567.89123456789123456789))
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eq('1.234568e7', funcs.String(12345678.9123456789123456789))
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end)
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it('dumps negative values', function()
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eq('-1.5', funcs.String(-1.5))
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eq('-1.56e-20', funcs.String(-1.56000e-020))
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eq('-1.234568e-20', funcs.String(-1.23456789123456789123456789e-020))
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eq('-1.234568', funcs.String(-1.23456789123456789123456789))
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eq('-1234567.891235', funcs.String(-1234567.89123456789123456789))
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eq('-1.234568e7', funcs.String(-12345678.9123456789123456789))
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end)
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end)
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describe('used to represent numbers', function()
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it('dumps regular values', function()
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eq('0', funcs.String(0))
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eq('-1', funcs.String(-1))
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eq('1', funcs.String(1))
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end)
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it('dumps large values', function()
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eq('2147483647', funcs.String(2^31-1))
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eq('-2147483648', funcs.String(-2^31))
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end)
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end)
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describe('used to represent strings', function()
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it('dumps regular strings', function()
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eq('test', funcs.String('test'))
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end)
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it('dumps empty strings', function()
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eq('', funcs.String(''))
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end)
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it('dumps strings with \' inside', function()
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eq('\'\'\'', funcs.String('\'\'\''))
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eq('a\'b\'\'', funcs.String('a\'b\'\''))
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eq('\'b\'\'d', funcs.String('\'b\'\'d'))
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eq('a\'b\'c\'d', funcs.String('a\'b\'c\'d'))
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end)
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it('dumps NULL strings', function()
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eq('', eval('String($XXX_UNEXISTENT_VAR_XXX)'))
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end)
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it('dumps NULL lists', function()
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eq('[]', eval('String(v:_null_list)'))
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end)
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it('dumps NULL dictionaries', function()
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eq('{}', eval('String(v:_null_dict)'))
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end)
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end)
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describe('used to represent funcrefs', function()
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before_each(function()
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source([[
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function Test1()
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endfunction
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function s:Test2() dict
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endfunction
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function g:Test3() dict
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endfunction
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let g:Test2_f = function('s:Test2')
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]])
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end)
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it('dumps references to built-in functions', function()
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eq('function', eval('String(function("function"))'))
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end)
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it('dumps references to user functions', function()
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eq('Test1', eval('String(function("Test1"))'))
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eq('g:Test3', eval('String(function("g:Test3"))'))
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end)
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it('dumps references to script functions', function()
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eq('<SNR>2_Test2', eval('String(Test2_f)'))
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end)
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it('dumps partials with self referencing a partial', function()
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source([[
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function TestDict() dict
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endfunction
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let d = {}
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let TestDictRef = function('TestDict', d)
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let d.tdr = TestDictRef
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]])
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eq(dedent([[
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function('TestDict', {'tdr': function('TestDict', {...@1})})
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function('TestDict', {'tdr': function('TestDict', {...@1})})]]),
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redir_exec('echo String(d.tdr)'))
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end)
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it('dumps automatically created partials', function()
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eq('function(\'<SNR>2_Test2\', {\'f\': function(\'<SNR>2_Test2\')})',
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eval('String({"f": Test2_f}.f)'))
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eq('function(\'<SNR>2_Test2\', [1], {\'f\': function(\'<SNR>2_Test2\', [1])})',
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eval('String({"f": function(Test2_f, [1])}.f)'))
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end)
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it('dumps manually created partials', function()
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eq('function(\'Test3\', [1, 2], {})',
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eval('String(function("Test3", [1, 2], {}))'))
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eq('function(\'Test3\', {})',
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eval('String(function("Test3", {}))'))
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eq('function(\'Test3\', [1, 2])',
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eval('String(function("Test3", [1, 2]))'))
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end)
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it('does not crash or halt when dumping partials with reference cycles in self',
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function()
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meths.set_var('d', {v=true})
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eq(dedent([[
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{'p': function('<SNR>2_Test2', {...@0}), 'f': function('<SNR>2_Test2'), 'v': v:true}
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{'p': function('<SNR>2_Test2', {...@0}), 'f': function('<SNR>2_Test2'), 'v': v:true}]]),
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redir_exec('echo String(extend(extend(g:d, {"f": g:Test2_f}), {"p": g:d.f}))'))
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end)
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it('does not show errors when dumping partials referencing the same dictionary',
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function()
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command('let d = {}')
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-- Regression for “eval/typval_encode: Dump empty dictionary before
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-- checking for refcycle”, results in error.
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eq('[function(\'tr\', {}), function(\'tr\', {})]', eval('String([function("tr", d), function("tr", d)])'))
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-- Regression for “eval: Work with reference cycles in partials (self)
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-- properly”, results in crash.
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eval('extend(d, {"a": 1})')
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eq('[function(\'tr\', {\'a\': 1}), function(\'tr\', {\'a\': 1})]', eval('String([function("tr", d), function("tr", d)])'))
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end)
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it('does not crash or halt when dumping partials with reference cycles in arguments',
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function()
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meths.set_var('l', {})
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eval('add(l, l)')
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-- Regression: the below line used to crash (add returns original list and
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-- there was error in dumping partials). Tested explicitly in
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-- test/unit/api/private_helpers_spec.lua.
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eval('add(l, function("Test1", l))')
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eq(dedent([=[
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function('Test1', [[[...@2], function('Test1', [[...@2]])], function('Test1', [[[...@4], function('Test1', [[...@4]])]])])
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function('Test1', [[[...@2], function('Test1', [[...@2]])], function('Test1', [[[...@4], function('Test1', [[...@4]])]])])]=]),
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redir_exec('echo String(function("Test1", l))'))
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end)
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it('does not crash or halt when dumping partials with reference cycles in self and arguments',
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function()
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meths.set_var('d', {v=true})
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meths.set_var('l', {})
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eval('add(l, l)')
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eval('add(l, function("Test1", l))')
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eval('add(l, function("Test1", d))')
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eq(dedent([=[
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{'p': function('<SNR>2_Test2', [[[...@3], function('Test1', [[...@3]]), function('Test1', {...@0})], function('Test1', [[[...@5], function('Test1', [[...@5]]), function('Test1', {...@0})]]), function('Test1', {...@0})], {...@0}), 'f': function('<SNR>2_Test2'), 'v': v:true}
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{'p': function('<SNR>2_Test2', [[[...@3], function('Test1', [[...@3]]), function('Test1', {...@0})], function('Test1', [[[...@5], function('Test1', [[...@5]]), function('Test1', {...@0})]]), function('Test1', {...@0})], {...@0}), 'f': function('<SNR>2_Test2'), 'v': v:true}]=]),
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redir_exec('echo String(extend(extend(g:d, {"f": g:Test2_f}), {"p": function(g:d.f, l)}))'))
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end)
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end)
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describe('used to represent lists', function()
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it('dumps empty list', function()
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eq('[]', funcs.String({}))
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end)
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it('dumps nested lists', function()
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eq('[[[[[]]]]]', funcs.String({{{{{}}}}}))
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end)
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it('dumps nested non-empty lists', function()
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eq('[1, [[3, [[5], 4]], 2]]', funcs.String({1, {{3, {{5}, 4}}, 2}}))
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end)
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it('does not error when dumping recursive lists', function()
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meths.set_var('l', {})
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eval('add(l, l)')
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eq(0, exc_exec('echo String(l)'))
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end)
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it('dumps recursive lists without error', function()
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meths.set_var('l', {})
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eval('add(l, l)')
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eq('\n[[...@0]]\n[[...@0]]', redir_exec('echo String(l)'))
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eq('\n[[[...@1]]]\n[[[...@1]]]', redir_exec('echo String([l])'))
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end)
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end)
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describe('used to represent dictionaries', function()
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it('dumps empty dictionary', function()
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eq('{}', eval('String({})'))
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end)
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it('dumps list with two same empty dictionaries, also in partials', function()
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command('let d = {}')
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eq('[{}, {}]', eval('String([d, d])'))
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eq('[function(\'tr\', {}), {}]', eval('String([function("tr", d), d])'))
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eq('[{}, function(\'tr\', {})]', eval('String([d, function("tr", d)])'))
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end)
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it('dumps non-empty dictionary', function()
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eq('{\'t\'\'est\': 1}', funcs.String({['t\'est']=1}))
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end)
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it('does not error when dumping recursive dictionaries', function()
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meths.set_var('d', {d=1})
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eval('extend(d, {"d": d})')
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eq(0, exc_exec('echo String(d)'))
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end)
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it('dumps recursive dictionaries without the error', function()
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meths.set_var('d', {d=1})
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eval('extend(d, {"d": d})')
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eq('\n{\'d\': {...@0}}\n{\'d\': {...@0}}',
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redir_exec('echo String(d)'))
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eq('\n{\'out\': {\'d\': {...@1}}}\n{\'out\': {\'d\': {...@1}}}',
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redir_exec('echo String({"out": d})'))
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end)
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end)
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describe('used to represent special values', function()
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local function chr(n)
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return ('%c'):format(n)
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end
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local function ctrl(c)
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return ('%c'):format(c:upper():byte() - 0x40)
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end
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it('displays hex as hex', function()
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-- Regression: due to missing (uint8_t) cast \x80 was represented as
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-- ~@<80>.
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eq('<80>', funcs.String(chr(0x80)))
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eq('<81>', funcs.String(chr(0x81)))
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eq('<8e>', funcs.String(chr(0x8e)))
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eq('<c2>', funcs.String(('«'):sub(1, 1)))
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eq('«', funcs.String(('«'):sub(1, 2)))
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end)
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it('displays ASCII control characters using ^X notation', function()
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eq('^C', funcs.String(ctrl('c')))
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eq('^A', funcs.String(ctrl('a')))
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eq('^F', funcs.String(ctrl('f')))
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end)
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it('prints CR, NL and tab as-is', function()
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eq('\n', funcs.String('\n'))
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eq('\r', funcs.String('\r'))
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eq('\t', funcs.String('\t'))
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end)
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it('prints non-printable UTF-8 in <> notation', function()
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-- SINGLE SHIFT TWO, unicode control
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eq('<8e>', funcs.String(funcs.nr2char(0x8E)))
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-- Surrogate pair: U+1F0A0 PLAYING CARD BACK is represented in UTF-16 as
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-- 0xD83C 0xDCA0. This is not valid in UTF-8.
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eq('<d83c>', funcs.String(funcs.nr2char(0xD83C)))
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eq('<dca0>', funcs.String(funcs.nr2char(0xDCA0)))
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eq('<d83c><dca0>', funcs.String(funcs.nr2char(0xD83C) .. funcs.nr2char(0xDCA0)))
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end)
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end)
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end)
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