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#!/usr/bin/env tarantool
test = require("sqltester")
test:plan(9999)
--!./tcltestrunner.lua
-- 2012 June 18
--
-- The author disclaims copyright to this source code. In place of
-- a legal notice, here is a blessing:
--
-- May you do good and not evil.
-- May you find forgiveness for yourself and forgive others.
-- May you share freely, never taking more than you give.
--
-------------------------------------------------------------------------
--
-- Tests of the sqlAtoF() function.
--
-- ["set","testdir",[["file","dirname",["argv0"]]]]
-- ["source",[["testdir"],"\/tester.tcl"]]
for i = 1, 10000 - 1, 1 do
local pow = math.random(100)
local x = math.pow((math.random()-0.5)*2*math.random(), pow)
-- Pointless test
-- local xf = string.format("%.32e", x)
-- print("\nxf "..xf.." x "..x)
-- -- Verify that text->real conversions get exactly same ieee754 floating-
-- -- point value in sql as they do in TCL.
-- --
-- test:do_test(
-- "atof1-1."..i..".1",
-- function()
-- local y = test:execsql("SELECT "..xf.."="..x)
-- return y
-- end, {
-- 1
-- })
-- Verify that round-trip real->text->real conversions using the quote()
-- function preserve the bits of the numeric value exactly.
--
test:do_test(
"atof1-1."..i..".2",
function()
local y = test:execsql(string.format("SELECT %s=CAST(quote(%s) AS NUMBER)",x, x))
return y
end, {
true
})
end
test:finish_test()
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