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local helpers = require('test.functional.helpers')
local clear, meths, funcs, eq =
helpers.clear, helpers.meths, helpers.funcs, helpers.eq
describe('history support code', function()
before_each(clear)
it('correctly clears start of the history', function()
-- Regression test: check absense of the memory leak when clearing start of
-- the history using ex_getln.c/clr_history().
eq(1, funcs.histadd(':', 'foo'))
eq(1, funcs.histdel(':'))
eq('', funcs.histget(':', -1))
end)
it('correctly clears end of the history', function()
-- Regression test: check absense of the memory leak when clearing end of
-- the history using ex_getln.c/clr_history().
meths.set_option('history', 1)
eq(1, funcs.histadd(':', 'foo'))
eq(1, funcs.histdel(':'))
eq('', funcs.histget(':', -1))
end)
it('correctly removes item from history', function()
-- Regression test: check that ex_getln.c/del_history_idx() correctly clears
-- history index after removing history entry. If it does not then deleting
-- history will result in a double free.
eq(1, funcs.histadd(':', 'foo'))
eq(1, funcs.histadd(':', 'bar'))
eq(1, funcs.histadd(':', 'baz'))
eq(1, funcs.histdel(':', -2))
eq(1, funcs.histdel(':'))
eq('', funcs.histget(':', -1))
end)
end)
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