mirror of
https://github.com/google/flatbuffers.git
synced 2026-06-02 04:04:19 +00:00
82aed82b84
This adds basic support for different Lua versions. For Lua 5.2 and Lua 5.3, both the Bit32 and Compat53 Lua modules must be installed for it to work. You can typically get these on Linux using apt install lua-compat53 lua-bit32 For Lua 5.4, it should work as is, as it is a clean superset of Lua 5.3, which is what the original Lua Flatbuffers supported.
374 lines
11 KiB
Lua
374 lines
11 KiB
Lua
package.path = string.format("../lua/?.lua;./?.lua;%s",package.path)
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local compat = require("flatbuffers.compat")
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local performBenchmarkTests = false
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if #arg > 1 then
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print("usage: lua luatests [benchmark]");
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return
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elseif #arg > 0 then
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if(arg[1] == "benchmark") then
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performBenchmarkTests = true
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end
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end
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local function checkReadBuffer(buf, offset, sizePrefix)
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offset = offset or 0
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if type(buf) == "string" then
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buf = flatbuffers.binaryArray.New(buf)
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end
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if sizePrefix then
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local size = flatbuffers.N.Int32:Unpack(buf, offset)
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assert(size == buf.size - offset - 4)
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offset = offset + flatbuffers.N.Int32.bytewidth
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end
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local mon = monster.GetRootAsMonster(buf, offset)
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assert(mon:Hp() == 80, "Monster Hp is not 80")
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assert(mon:Mana() == 150, "Monster Mana is not 150")
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assert(mon:Name() == "MyMonster", "Monster Name is not MyMonster")
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assert(mon:Testbool() == true)
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local vec = assert(mon:Pos(), "Monster Position is nil")
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assert(vec:X() == 1.0)
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assert(vec:Y() == 2.0)
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assert(vec:Z() == 3.0)
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assert(vec:Test1() == 3.0)
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assert(vec:Test2() == 2)
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local t = require("MyGame.Example.Test").New()
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t = assert(vec:Test3(t))
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assert(t:A() == 5)
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assert(t:B() == 6)
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local ut = require("MyGame.Example.Any")
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assert(mon:TestType() == ut.Monster)
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local table2 = mon:Test()
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assert(getmetatable(table2) == "flatbuffers.view.mt")
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local mon2 = monster.New()
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mon2:Init(table2.bytes, table2.pos)
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assert(mon2:Name() == "Fred")
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assert(mon:InventoryLength() == 5)
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local invsum = 0
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for i=1,mon:InventoryLength() do
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local v = mon:Inventory(i)
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invsum = invsum + v
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end
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assert(invsum == 10)
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for i=1,5 do
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assert(mon:VectorOfLongs(i) == 10^((i-1)*2))
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end
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local dbls = { -1.7976931348623157e+308, 0, 1.7976931348623157e+308}
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for i=1,mon:VectorOfDoublesLength() do
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assert(mon:VectorOfDoubles(i) == dbls[i])
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end
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assert(mon:Test4Length() == 2)
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local test0 = mon:Test4(1)
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local test1 = mon:Test4(2)
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local v0 = test0:A()
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local v1 = test0:B()
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local v2 = test1:A()
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local v3 = test1:B()
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local sumtest12 = v0 + v1 + v2 + v3
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assert(sumtest12 == 100)
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assert(mon:TestarrayofstringLength() == 2)
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assert(mon:Testarrayofstring(1) == "test1")
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assert(mon:Testarrayofstring(2) == "test2")
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assert(mon:TestarrayoftablesLength() == 0)
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assert(mon:TestnestedflatbufferLength() == 0)
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assert(mon:Testempty() == nil)
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end
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local function generateMonster(sizePrefix, b)
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if b then b:Clear() end
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b = b or flatbuffers.Builder(0)
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local str = b:CreateString("MyMonster")
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local test1 = b:CreateString("test1")
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local test2 = b:CreateString("test2")
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local fred = b:CreateString("Fred")
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monster.StartInventoryVector(b, 5)
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b:PrependByte(4)
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b:PrependByte(3)
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b:PrependByte(2)
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b:PrependByte(1)
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b:PrependByte(0)
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local inv = b:EndVector(5)
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monster.Start(b)
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monster.AddName(b, fred)
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local mon2 = monster.End(b)
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monster.StartTest4Vector(b, 2)
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test.CreateTest(b, 10, 20)
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test.CreateTest(b, 30, 40)
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local test4 = b:EndVector(2)
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monster.StartTestarrayofstringVector(b, 2)
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b:PrependUOffsetTRelative(test2)
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b:PrependUOffsetTRelative(test1)
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local testArrayOfString = b:EndVector(2)
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monster.StartVectorOfLongsVector(b, 5)
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b:PrependInt64(100000000)
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b:PrependInt64(1000000)
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b:PrependInt64(10000)
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b:PrependInt64(100)
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b:PrependInt64(1)
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local vectorOfLongs = b:EndVector(5)
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monster.StartVectorOfDoublesVector(b, 3)
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b:PrependFloat64(1.7976931348623157e+308)
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b:PrependFloat64(0)
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b:PrependFloat64(-1.7976931348623157e+308)
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local vectorOfDoubles = b:EndVector(3)
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monster.Start(b)
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local pos = vec3.CreateVec3(b, 1.0, 2.0, 3.0, 3.0, 2, 5, 6)
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monster.AddPos(b, pos)
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monster.AddHp(b, 80)
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monster.AddName(b, str)
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monster.AddInventory(b, inv)
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monster.AddTestType(b, 1)
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monster.AddTest(b, mon2)
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monster.AddTest4(b, test4)
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monster.AddTestbool(b, true)
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monster.AddTestbool(b, false)
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monster.AddTestbool(b, null)
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monster.AddTestbool(b,"true")
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monster.AddTestarrayofstring(b, testArrayOfString)
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monster.AddVectorOfLongs(b, vectorOfLongs)
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monster.AddVectorOfDoubles(b, vectorOfDoubles)
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local mon = monster.End(b)
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if sizePrefix then
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b:FinishSizePrefixed(mon)
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else
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b:Finish(mon)
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end
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return b:Output(true), b:Head()
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end
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local function sizePrefix(sizePrefix)
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local buf,offset = generateMonster(sizePrefix)
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checkReadBuffer(buf, offset, sizePrefix)
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end
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local function fbbClear()
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-- Generate a builder that will be 'cleared' and reused to create two different objects.
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local fbb = flatbuffers.Builder(0)
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-- First use the builder to read the normal monster data and verify it works
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local buf, offset = generateMonster(false, fbb)
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checkReadBuffer(buf, offset, false)
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-- Then clear the builder to be used again
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fbb:Clear()
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-- Storage for the built monsters
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local monsters = {}
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local lastBuf
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-- Make another builder that will be use identically to the 'cleared' one so outputs can be compared. Build both the
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-- Cleared builder and new builder in the exact same way, so we can compare their results
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for i, builder in ipairs({fbb, flatbuffers.Builder(0)}) do
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local strOffset = builder:CreateString("Hi there")
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monster.Start(builder)
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monster.AddPos(builder, vec3.CreateVec3(builder, 3.0, 2.0, 1.0, 17.0, 3, 100, 123))
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monster.AddName(builder, strOffset)
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monster.AddMana(builder, 123)
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builder:Finish(monster.End(builder))
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local buf = builder:Output(false)
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if not lastBuf then
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lastBuf = buf
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else
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-- the output, sized-buffer should be identical
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assert(lastBuf == buf, "Monster output buffers are not identical")
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end
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monsters[i] = monster.GetRootAsMonster(flatbuffers.binaryArray.New(buf), 0)
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end
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-- Check that all the fields for the generated monsters are as we expect
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for i, monster in ipairs(monsters) do
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assert(monster:Name() == "Hi there", "Monster Name is not 'Hi There' for monster "..i)
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-- HP is default to 100 in the schema, but we change it in generateMonster to 80, so this is a good test to
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-- see if the cleared builder really clears the data.
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assert(monster:Hp() == 100, "HP doesn't equal the default value for monster "..i)
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assert(monster:Mana() == 123, "Monster Mana is not '123' for monster "..i)
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assert(monster:Pos():X() == 3.0, "Monster vec3.X is not '3' for monster "..i)
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end
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end
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local function testCanonicalData()
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local f = assert(io.open('monsterdata_test.mon', 'rb'))
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local wireData = f:read("*a")
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f:close()
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checkReadBuffer(wireData)
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end
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local function benchmarkMakeMonster(count, reuseBuilder)
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local fbb = reuseBuilder and flatbuffers.Builder(0)
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local length = #(generateMonster(false, fbb))
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local s = os.clock()
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for i=1,count do
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generateMonster(false, fbb)
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end
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local e = os.clock()
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local dur = (e - s)
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local rate = count / (dur * 1000)
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local data = (length * count) / (1024 * 1024)
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local dataRate = data / dur
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print(string.format('built %d %d-byte flatbuffers in %.2fsec: %.2f/msec, %.2fMB/sec',
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count, length, dur, rate, dataRate))
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end
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local function benchmarkReadBuffer(count)
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local f = assert(io.open('monsterdata_test.mon', 'rb'))
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local buf = f:read("*a")
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f:close()
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local s = os.clock()
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for i=1,count do
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checkReadBuffer(buf)
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end
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local e = os.clock()
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local dur = (e - s)
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local rate = count / (dur * 1000)
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local data = (#buf * count) / (1024 * 1024)
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local dataRate = data / dur
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print(string.format('traversed %d %d-byte flatbuffers in %.2fsec: %.2f/msec, %.2fMB/sec',
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count, #buf, dur, rate, dataRate))
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end
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local function getRootAs_canAcceptString()
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local f = assert(io.open('monsterdata_test.mon', 'rb'))
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local wireData = f:read("*a")
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f:close()
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assert(type(wireData) == "string", "Data is not a string");
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local mon = monster.GetRootAsMonster(wireData, 0)
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assert(mon:Hp() == 80, "Monster Hp is not 80")
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end
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local tests =
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{
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{
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f = sizePrefix,
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d = "Test size prefix",
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args = {{true}, {false}}
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},
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{
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f = fbbClear,
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d = "FlatBufferBuilder Clear",
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},
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{
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f = testCanonicalData,
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d = "Tests Canonical flatbuffer file included in repo"
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},
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{
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f = getRootAs_canAcceptString,
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d = "Tests that GetRootAs<type>() generated methods accept strings"
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},
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}
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local benchmarks =
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{
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{
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f = benchmarkMakeMonster,
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d = "Benchmark making monsters",
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args = {
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{100},
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{1000},
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{10000},
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{10000, true}
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}
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},
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{
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f = benchmarkReadBuffer,
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d = "Benchmark reading monsters",
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args = {
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{100},
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{1000},
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{10000},
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-- uncomment following to run 1 million to compare.
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-- Took ~141 seconds on my machine
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--{1000000},
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}
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},
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}
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local result, err = xpcall(function()
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flatbuffers = assert(require("flatbuffers"))
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monster = assert(require("MyGame.Example.Monster"))
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test = assert(require("MyGame.Example.Test"))
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vec3 = assert(require("MyGame.Example.Vec3"))
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local function buildArgList(tbl)
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local s = ""
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for _,item in ipairs(tbl) do
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s = s .. tostring(item) .. ","
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end
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return s:sub(1,-2)
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end
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if performBenchmarkTests then
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for _,benchmark in ipairs(benchmarks) do
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table.insert(tests, benchmark)
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end
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end
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local testsPassed, testsFailed = 0,0
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for _,test in ipairs(tests) do
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local allargs = test.args or {{}}
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for _,args in ipairs(allargs) do
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local results, err = xpcall(test.f,debug.traceback, table.unpack(args))
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if results then
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testsPassed = testsPassed + 1
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else
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testsFailed = testsFailed + 1
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print(string.format(" Test [%s](%s) failed: \n\t%s",
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test.d or "",
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buildArgList(args),
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err))
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end
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end
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end
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local totalTests = testsPassed + testsFailed
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print(string.format("# of test passed: %d / %d (%.2f%%)",
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testsPassed,
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totalTests,
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totalTests ~= 0
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and 100 * (testsPassed / totalTests)
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or 0)
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)
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return 0
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end, debug.traceback)
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if not result then
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print("Unable to run tests due to test framework error: ",err)
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end
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os.exit(result and 0 or -1)
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