Add confomance test

benchmarks/stringify-stream-conformance.js

@@ -0,0 +1,49 @@
+const bfj = require('bfj');
+const JsonStreamStringify = require('json-stream-stringify');
+const jsonExt = require('../src');
+
+function stringify(init, data) {
+    const chunks = [];
+    let uncaughtExceptionFn;
+
+    return new Promise((resolve, reject) => {
+        process.on('uncaughtException', uncaughtExceptionFn = (e) => reject(e));
+        init(data)
+            .on('error', reject)
+            .on('data', chunk => chunks.push(chunk))
+            .on('end', () => resolve(chunks.join('')));
+    })
+        .finally(() => process.off('uncaughtException', uncaughtExceptionFn));
+}
+
+const { tests } = require('../test/fixture/stringify-cases');
+const streamFactories = {
+    [require('../package.json').name]: data => jsonExt.stringifyStream(data),
+    'bfj': data => bfj.streamify(data),
+    'json-stream-stringify': data => new JsonStreamStringify(data)
+};
+
+async function run() {
+    for (const [name, createStream] of Object.entries(streamFactories)) {
+        let success = 0;
+
+        for (const value of tests) {
+            try {
+                const expected = JSON.stringify(value);
+                const actual = await stringify(createStream, value);
+
+                if (actual === expected) {
+                    success++;
+                } else {
+                    // console.error(name, 'ERROR', value, actual, expected);
+                }
+            } catch (e) {
+                // console.error(name, 'FAILED', value);
+            }
+        }
+
+        console.log(name, `${success}/${tests.length}`);
+    }
+}
+
+run();