String Check

Check whether a string contains required text.

string_check.lua

local text = 
local found = string.find(text, "trace") ~= nil
local status = "fail"
if found then
    status = "pass"
end
print("text=" .. text)
print("status=" .. status)

local text = 
local found = string.find(text, "trace") ~= nil
local status = "fail"
if found then
    status = "pass"
end
print("text=" .. text)
print("status=" .. status)

local text = 
local found = string.find(text, "trace") ~= nil
local status = "fail"
if found then
    status = "pass"
end
print("text=" .. text)
print("status=" .. status)

substring assertion `string.find` returns a position when the required text is present and `nil` when it is missing.