75 lines
2.1 KiB
JavaScript
75 lines
2.1 KiB
JavaScript
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import fs from 'fs';
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const dec = new TextDecoder("utf-8");
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if (process.argv.length != 3) {
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console.log("Usage: node verify.mjs <wasm-file>");
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process.exit(0);
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}
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const wasmfile = process.argv[2];
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if (!fs.existsSync(wasmfile)) {
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console.log("Error: File not found:", wasmfile);
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process.exit(1);
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}
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const wasmBuffer = fs.readFileSync(wasmfile);
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async function main() {
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let memory = new ArrayBuffer(0) // will be changed after instantiate
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const captured_output = [];
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const imports = {
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env: {
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__log_utf8: (ptr, size) => {
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const str = dec.decode(new DataView(memory, ptr, size));
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captured_output.push(str);
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console.log(str);
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}
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}
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};
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const wasmModule = await WebAssembly.instantiate(wasmBuffer, imports);
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memory = wasmModule.instance.exports.memory.buffer;
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const start = wasmModule.instance.exports.start;
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const return_code = start();
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console.log("Return-Code:", return_code);
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if (return_code !== 0) {
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console.error("Expected return code 0");
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process.exit(return_code);
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}
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const expected_output = [
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'`r#try` called with ptr 0x1234',
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'Dropped',
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'Caught something!',
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' data : 0x1234',
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' exception: "index out of bounds: the len is 1 but the index is 4"',
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'This program terminates correctly.',
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];
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assert_equal(captured_output, expected_output);
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}
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function assert_equal(captured_output, expected_output) {
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if (captured_output.length != expected_output.length) {
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console.error("Unexpected number of output lines. Got", captured_output.length, "but expected", expected_output.length);
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process.exit(1); // exit with error
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}
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for (let idx = 0; idx < expected_output.length; ++idx) {
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if (captured_output[idx] !== expected_output[idx]) {
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console.error("Unexpected output");
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console.error("[got] ", captured_output[idx]);
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console.error("[expected]", expected_output[idx]);
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process.exit(2); // exit with error
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}
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}
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}
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await main();
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