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https://github.com/neovim/neovim.git
synced 2024-12-24 05:05:00 -07:00
278 lines
10 KiB
Lua
278 lines
10 KiB
Lua
local helpers = require('test.functional.helpers')(after_each)
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local clear = helpers.clear
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local eq = helpers.eq
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local command = helpers.command
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local meths = helpers.meths
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local eval = helpers.eval
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local exc_exec = helpers.exc_exec
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local redir_exec = helpers.redir_exec
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local funcs = helpers.funcs
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local NIL = helpers.NIL
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local source = helpers.source
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local dedent = helpers.dedent
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describe('string() function', function()
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before_each(clear)
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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(\'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('function(\'Test1\')', eval('string(function("Test1"))'))
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eq('function(\'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('function(\'<SNR>1_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("\nE724: unable to correctly dump variable with self-referencing container\nfunction('TestDict', {'tdr': function('TestDict', {E724@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>1_Test2\', {\'f\': function(\'<SNR>1_Test2\')})',
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eval('string({"f": Test2_f}.f)'))
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eq('function(\'<SNR>1_Test2\', [1], {\'f\': function(\'<SNR>1_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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E724: unable to correctly dump variable with self-referencing container
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{'p': function('<SNR>1_Test2', {E724@0}), 'f': function('<SNR>1_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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E724: unable to correctly dump variable with self-referencing container
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function('Test1', [[{E724@2}, function('Test1', [{E724@2}])], function('Test1', [[{E724@4}, function('Test1', [{E724@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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E724: unable to correctly dump variable with self-referencing container
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{'p': function('<SNR>1_Test2', [[{E724@3}, function('Test1', [{E724@3}]), function('Test1', {E724@0})], function('Test1', [[{E724@5}, function('Test1', [{E724@5}]), function('Test1', {E724@0})]]), function('Test1', {E724@0})], {E724@0}), 'f': function('<SNR>1_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('errors 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('Vim(echo):E724: unable to correctly dump variable with self-referencing container',
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exc_exec('echo string(l)'))
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end)
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it('dumps recursive lists despite the error', function()
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meths.set_var('l', {})
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eval('add(l, l)')
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eq('\nE724: unable to correctly dump variable with self-referencing container\n[{E724@0}]',
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redir_exec('echo string(l)'))
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eq('\nE724: unable to correctly dump variable with self-referencing container\n[[{E724@1}]]',
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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('errors 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('Vim(echo):E724: unable to correctly dump variable with self-referencing container',
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exc_exec('echo string(d)'))
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end)
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it('dumps recursive dictionaries despite 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('\nE724: unable to correctly dump variable with self-referencing container\n{\'d\': {E724@0}}',
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redir_exec('echo string(d)'))
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eq('\nE724: unable to correctly dump variable with self-referencing container\n{\'out\': {\'d\': {E724@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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end)
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