diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/lvm.js | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/tests/lvm.js b/tests/lvm.js new file mode 100644 index 0000000..6ee348d --- /dev/null +++ b/tests/lvm.js @@ -0,0 +1,66 @@ +"use strict"; + +const test = require('tape'); +const fs = require('fs'); +const child_process = require('child_process'); +const beautify = require('js-beautify').js_beautify; +const tmp = require('tmp'); +const DataView = require('buffer-dataview'); + +const BytecodeParser = require("../src/lundump.js"); +const lua_State = require("../src/lstate.js").lua_State; +const LuaVM = require("../src/lvm.js").LuaVM; + +const toByteCode = function (luaCode) { + var luaFile = tmp.fileSync(), + bclist; + + fs.writeSync(luaFile.fd, luaCode); + + child_process.execSync(`luac-5.3 -o ${luaFile.name}.bc ${luaFile.name}`); + child_process.execSync(`luac-5.3 -l ${luaFile.name} > ${luaFile.name}.bc.txt`); + + bclist = fs.readFileSync(`${luaFile.name}.bc.txt`, 'utf8'); + + console.log(bclist); + + return { + dataView: new DataView(fs.readFileSync(`${luaFile.name}.bc`)), + bclist: bclist + }; +}; + +const getVM = function (luaCode) { + var bc = toByteCode(luaCode), + dv = bc.dataView, + bcl = bc.bclist; + + let p = new BytecodeParser(dv); + let cl = p.luaU_undump(); + + let L = new lua_State(cl); + + return new LuaVM(L); +}; + +test('LOADK, RETURN', function (t) { + let luaCode = ` + local a = "hello world" + return a + `, vm; + + t.plan(2); + + t.comment("Running following code: \n" + luaCode); + + t.doesNotThrow(function () { + vm = getVM(luaCode); + vm.execute(); + }, "Program executed without errors"); + + t.strictEqual( + vm.L.stack[0].value, + "hello world", + "Program output is correct" + ); +});
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