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local helpers = require('test.functional.helpers')(after_each)
local nvim, call = helpers.meths, helpers.call
local clear, eq = helpers.clear, helpers.eq
local source, execute = helpers.source, helpers.execute
local exc_exec = helpers.exc_exec
local function expected_errors(errors)
eq(errors, nvim.get_vvar('errors'))
end
local function expected_empty()
eq({}, nvim.get_vvar('errors'))
end
describe('assert function:', function()
before_each(function()
clear()
end)
-- assert_equal({expected}, {actual}, [, {msg}])
describe('assert_equal', function()
it('should not change v:errors when expected is equal to actual', function()
source([[
let s = 'foo'
call assert_equal('foo', s)
let n = 4
call assert_equal(4, n)
let l = [1, 2, 3]
call assert_equal([1, 2, 3], l)
fu Func()
endfu
let F1 = function('Func')
let F2 = function('Func')
call assert_equal(F1, F2)
]])
expected_empty()
end)
it('should not change v:errors when expected is equal to actual', function()
call('assert_equal', '', '')
call('assert_equal', 'string', 'string')
expected_empty()
end)
it('should change v:errors when expected is not equal to actual', function()
call('assert_equal', 0, {0})
expected_errors({'Expected 0 but got [0]'})
end)
it('should change v:errors when expected is not equal to actual', function()
call('assert_equal', 0, "0")
expected_errors({"Expected 0 but got '0'"})
end)
it('should change v:errors when expected is not equal to actual', function()
-- Lua does not tell integer from float.
execute('call assert_equal(1, 1.0)')
expected_errors({'Expected 1 but got 1.0'})
end)
it('should change v:errors when expected is not equal to actual', function()
call('assert_equal', 'true', 'false')
expected_errors({"Expected 'true' but got 'false'"})
end)
it('should change v:errors when expected is not equal to actual', function()
source([[
function CheckAssert()
let s:v = {}
let s:x = {"a": s:v}
let s:v["b"] = s:x
let s:w = {"c": s:x, "d": ''}
call assert_equal(s:w, '')
endfunction
]])
eq('Vim(call):E724: unable to correctly dump variable with self-referencing container',
exc_exec('call CheckAssert()'))
end)
end)
-- assert_notequal({expected}, {actual}[, {msg}])
describe('assert_notequal', function()
it('should not change v:errors when expected differs from actual', function()
call('assert_notequal', 'foo', 4)
call('assert_notequal', {1, 2, 3}, 'foo')
expected_empty()
end)
it('should change v:errors when expected is equal to actual', function()
call('assert_notequal', 'foo', 'foo')
expected_errors({"Expected 'foo' differs from 'foo'"})
end)
end)
-- assert_false({actual}, [, {msg}])
describe('assert_false', function()
it('should not change v:errors when actual is false', function()
call('assert_false', 0)
call('assert_false', false)
expected_empty()
end)
it('should change v:errors when actual is not false', function()
call('assert_false', 1)
expected_errors({'Expected False but got 1'})
end)
it('should change v:errors when actual is not false', function()
call('assert_false', {})
expected_errors({'Expected False but got []'})
end)
end)
-- assert_true({actual}, [, {msg}])
describe('assert_true', function()
it('should not change v:errors when actual is true', function()
call('assert_true', 1)
call('assert_true', -1) -- In Vim script, non-zero Numbers are TRUE.
call('assert_true', true)
expected_empty()
end)
it('should change v:errors when actual is not true', function()
call('assert_true', 1.5)
expected_errors({'Expected True but got 1.5'})
end)
end)
describe('v:errors', function()
it('should be initialized at startup', function()
expected_empty()
end)
it('should have function names and relative line numbers', function()
source([[
fu Func_one()
call assert_equal([0], {'0' : 0})
call assert_false('False')
call assert_true("True")
endfu
fu Func_two()
" for shifting a line number
call assert_true('line two')
endfu
]])
call('Func_one')
call('Func_two')
expected_errors({
"function Func_one line 1: Expected [0] but got {'0': 0}",
"function Func_one line 2: Expected False but got 'False'",
"function Func_one line 3: Expected True but got 'True'",
"function Func_two line 2: Expected True but got 'line two'",
})
end)
it('should have file names and passed messages', function()
local tmpname_one = source([[
call assert_equal(1, 100, 'equal assertion failed')
call assert_false('true', 'true assertion failed')
call assert_true('false', 'false assertion failed')
]])
local tmpname_two = source([[
call assert_true('', 'file two')
]])
expected_errors({
tmpname_one .. " line 1: 'equal assertion failed'",
tmpname_one .. " line 2: 'true assertion failed'",
tmpname_one .. " line 3: 'false assertion failed'",
tmpname_two .. " line 1: 'file two'",
})
end)
it('is reset to a list by assert functions', function()
source([[
let save_verrors = v:errors
let v:['errors'] = {'foo': 3}
call assert_equal('yes', 'no')
let verrors = v:errors
let v:errors = save_verrors
call assert_equal(type([]), type(verrors))
]])
expected_empty()
end)
end)
-- assert_match({pat}, {text}[, {msg}])
describe('assert_match', function()
it('should not change v:errors when pat matches text', function()
call('assert_match', '^f.*b.*r$', 'foobar')
expected_empty()
end)
it('should change v:errors when pat does not match text', function()
call('assert_match', 'bar.*foo', 'foobar')
expected_errors({"Pattern 'bar.*foo' does not match 'foobar'"})
end)
it('should set v:errors to msg when given and match fails', function()
call('assert_match', 'bar.*foo', 'foobar', 'wrong')
expected_errors({"'wrong'"})
end)
end)
-- assert_notmatch({pat}, {text}[, {msg}])
describe('assert_notmatch', function()
it('should not change v:errors when pat does not match text', function()
call('assert_notmatch', 'foo', 'bar')
call('assert_notmatch', '^foobar$', 'foobars')
expected_empty()
end)
it('should change v:errors when pat matches text', function()
call('assert_notmatch', 'foo', 'foobar')
expected_errors({"Pattern 'foo' does match 'foobar'"})
end)
end)
-- assert_fails({cmd}, [, {error}])
describe('assert_fails', function()
it('should change v:errors when error does not match v:errmsg', function()
execute([[call assert_fails('xxx', {})]])
execute([[call assert_match("Expected {} but got 'E731:", v:errors[0])]])
expected_errors({"Expected {} but got 'E731: using Dictionary as a String'"})
end)
it('should not change v:errors when cmd errors', function()
call('assert_fails', 'NonexistentCmd')
expected_empty()
end)
it('should change v:errors when cmd succeeds', function()
call('assert_fails', 'call empty("")')
expected_errors({'command did not fail: call empty("")'})
end)
end)
-- assert_exception({cmd}, [, {error}])
describe('assert_exception()', function()
it('should assert thrown exceptions properly', function()
source([[
try
nocommand
catch
call assert_exception('E492')
endtry
]])
expected_empty()
end)
it('should work properly when nested', function()
source([[
try
nocommand
catch
try
" illegal argument, get NULL for error
call assert_exception([])
catch
call assert_exception('E730')
endtry
endtry
]])
expected_empty()
end)
end)
end)
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