Added test utility.
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utils/test.lua
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56
utils/test.lua
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--[[
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Copyright (c) 2014, Robert 'Bobby' Zenz
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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--]]
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--- A simple utility for testing values.
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test = {}
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--- Test if the given value matches the given expected value.
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-- If the values do not match, an error with the given message (if any) and
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-- an additional message containing both values will be shown.
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--
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-- The values will be compared with ==.
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--
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-- @param expected The expected value.
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-- @param actual The actual value.
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-- @param message Optional. The additional message to be printed.
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function test.equals(expected, actual, message)
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message = message or ""
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if expected == nil and actual ~= nil then
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error(message .. "\nAssert failed! Expected: <nil> but got <" .. actual .. ">")
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end
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if expected ~= nil and actual == nil then
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error(message .. "\nAssert failed! Expected: <" .. expected .. "> but got <nil>")
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end
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if expected ~= nil and actual ~= nil then
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assert(expected == actual, message .. "\nAssert failed! Expected <" .. tostring(expected) .. "> but got <" .. tostring(actual) .. ">")
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end
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end
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