38 lines
1.4 KiB
Lua
38 lines
1.4 KiB
Lua
require("test/setup")
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require("graphics")
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local function assertSmallDifference(previous, current, ballValue, ballLabel)
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local difference = math.abs(previous - current)
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local baseError = "Expected a small difference, but received a difference of "
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local fullDetails = luaunit.prettystr({ previous = previous, current = current, [ballLabel] = ballValue })
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luaunit.assertIsTrue(difference < 2, baseError .. difference .. ":\n " .. luaunit.prettystr(fullDetails))
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end
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function testNoJumpsInYOffset()
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local startY = -240 * 3
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local atXValues = { -400, 0, 400 }
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for _, xValue in ipairs(atXValues) do
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local _, lastYOffset = getDrawOffset(xValue, startY)
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for ballY = startY, 240 do
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local _, currentYOffset = getDrawOffset(xValue, ballY)
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assertSmallDifference(lastYOffset, currentYOffset, ballY, "ballY")
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lastYOffset = currentYOffset
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end
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end
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end
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function testNoJumpsInXOffset()
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local startX = -800
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local atYValues = { 240, 0, -240 }
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for _, yValue in ipairs(atYValues) do
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local lastXOffset = getDrawOffset(startX, yValue)
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for ballX = startX, 800 do
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local currentXOffset = getDrawOffset(ballX, yValue)
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assertSmallDifference(lastXOffset, currentXOffset, ballX, "ballX")
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lastXOffset = currentXOffset
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end
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end
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end
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os.exit(luaunit.LuaUnit.run())
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