diff --git a/.eslintrc.yml b/.eslintrc.yml
index 1ad66b0b..684dd8fa 100644
--- a/.eslintrc.yml
+++ b/.eslintrc.yml
@@ -5,7 +5,7 @@ parserOptions:
     jsx: true
   ecmaVersion: 2020
   sourceType: module
-  extraFileExtensions: ['.cjs']
+  extraFileExtensions: ['.cjs', '.mjs']
   project: ./tsconfig.json
 
 env:
@@ -222,6 +222,13 @@ overrides:
     parserOptions:
       project: ./bench/tsconfig.json
 
+  - files:
+      - ./memory-testing/*.{js,mjs}
+    plugins:
+      - '@typescript-eslint'
+    parserOptions:
+      project: ./tsconfig.root-lint.json
+
   - files:
       - ./*.js
     plugins:
diff --git a/.github/workflows/memory-test.yml b/.github/workflows/memory-test.yml
new file mode 100644
index 00000000..192ea021
--- /dev/null
+++ b/.github/workflows/memory-test.yml
@@ -0,0 +1,82 @@
+name: Memory Leak Detect
+
+env:
+  DEBUG: 'napi:*'
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  build_and_test:
+    name: Memory leak detect job
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Setup node
+        uses: actions/setup-node@v2
+        with:
+          node-version: 14
+          check-latest: true
+
+      - name: Install stable
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable-x86_64-unknown-linux-gnu
+          profile: minimal
+          override: true
+
+      - name: Generate Cargo.lock
+        uses: actions-rs/cargo@v1
+        with:
+          command: generate-lockfile
+
+      - name: Cache cargo registry
+        uses: actions/cache@v1
+        with:
+          path: ~/.cargo/registry
+          key: stable-memory-leak-detect-cargo-registry-trimmed-${{ hashFiles('**/Cargo.lock') }}
+
+      - name: Cache cargo index
+        uses: actions/cache@v1
+        with:
+          path: ~/.cargo/git
+          key: stable-memory-leak-detect-cargo-index-trimmed-${{ hashFiles('**/Cargo.lock') }}
+
+      - name: Cache cargo build
+        uses: actions/cache@v1
+        with:
+          path: target
+          key: stable-memory-leak-detect-cargo-build-trimmed-${{ hashFiles('**/Cargo.lock') }}
+
+      - name: Cache NPM dependencies
+        uses: actions/cache@v1
+        with:
+          path: node_modules
+          key: memory-leak-detect-${{ hashFiles('yarn.lock') }}
+
+      - name: 'Install dependencies'
+        run: yarn install --frozen-lockfile --registry https://registry.npmjs.org --network-timeout 300000
+
+      - name: 'Build TypeScript'
+        run: yarn build
+
+      - name: 'Pull docker image'
+        run: docker pull node:lts-slim
+
+      - name: 'Build memory test specs'
+        run: yarn build:memory
+
+      - name: Memory leak tests
+        run: yarn test:memory
+        env:
+          RUST_BACKTRACE: 1
+
+      - name: Clear the cargo caches
+        run: |
+          cargo install cargo-cache --no-default-features --features ci-autoclean
+          cargo-cache
diff --git a/Cargo.toml b/Cargo.toml
index e25cb0d8..c135e1f8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,9 +1,11 @@
 [workspace]
-exclude = ["./test_module", "./bench", "./testing"]
 members = [
   "./build",
   "./napi",
   "./napi-derive",
   "./napi-derive-example",
   "./sys",
+  "./test_module",
+  "./bench",
+  "./memory-testing",
 ]
diff --git a/bench/Cargo.toml b/bench/Cargo.toml
index f1d0cf5f..495b6c8e 100644
--- a/bench/Cargo.toml
+++ b/bench/Cargo.toml
@@ -21,7 +21,3 @@ mimalloc = {version = "0.1"}
 
 [build-dependencies]
 napi-build = {path = "../build"}
-
-[profile.release]
-lto = true
-opt-level = 3
diff --git a/memory-testing/Cargo.toml b/memory-testing/Cargo.toml
new file mode 100644
index 00000000..35163ae7
--- /dev/null
+++ b/memory-testing/Cargo.toml
@@ -0,0 +1,21 @@
+[package]
+authors = ["LongYinan <lynweklm@gmail.com>"]
+edition = "2018"
+name = "memory-testing"
+version = "0.1.0"
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies]
+futures = "0.3"
+napi = {path = "../napi", features = ["tokio_rt", "serde-json", "latin1"]}
+napi-derive = {path = "../napi-derive"}
+serde = "1"
+serde_bytes = "0.11"
+serde_derive = "1"
+serde_json = "1"
+tokio = {version = "1", features = ["default", "fs"]}
+
+[build-dependencies]
+napi-build = {path = "../build"}
diff --git a/memory-testing/build.rs b/memory-testing/build.rs
new file mode 100644
index 00000000..1f866b6a
--- /dev/null
+++ b/memory-testing/build.rs
@@ -0,0 +1,5 @@
+extern crate napi_build;
+
+fn main() {
+  napi_build::setup();
+}
diff --git a/memory-testing/index.mjs b/memory-testing/index.mjs
new file mode 100644
index 00000000..8d5957dd
--- /dev/null
+++ b/memory-testing/index.mjs
@@ -0,0 +1,6 @@
+import { createSuite } from './test-util.mjs'
+
+await createSuite('tokio-future')
+await createSuite('serde')
+
+process.exit(0)
diff --git a/memory-testing/package.json b/memory-testing/package.json
new file mode 100644
index 00000000..72dcb792
--- /dev/null
+++ b/memory-testing/package.json
@@ -0,0 +1,16 @@
+{
+  "name": "memory-testing",
+  "version": "1.0.0",
+  "scripts": {
+    "build": "node ../cli/scripts/index.js build --release"
+  },
+  "dependencies": {
+    "chalk": "^4.1.1",
+    "dockerode": "^3.3.0",
+    "pretty-bytes": "^5.6.0",
+    "table": "^6.7.1"
+  },
+  "devDependencies": {
+    "@types/dockerode": "^3.2.3"
+  }
+}
diff --git a/memory-testing/serde.js b/memory-testing/serde.js
new file mode 100644
index 00000000..6325a66a
--- /dev/null
+++ b/memory-testing/serde.js
@@ -0,0 +1,35 @@
+const displayMemoryUsageFromNode = require('./util')
+
+const initialMemoryUsage = process.memoryUsage()
+
+const api = require(`./index.node`)
+
+const data = {
+  id: 'ckovh15xa104945sj64rdk8oas',
+  name: '1883da9ff9152',
+  forename: '221c99bedc6a4',
+  description: '8bf86b62ce6a',
+  email: '9d57a869661cc',
+  phone: '7e0c58d147215',
+  arrivalDate: -92229669,
+  departureDate: 202138795,
+  price: -1592700387,
+  advance: -369294193,
+  advanceDueDate: 925000428,
+  kids: 520124290,
+  adults: 1160258464,
+  status: 'NO_PAYMENT',
+  nourishment: 'BB',
+  createdAt: '2021-05-19T12:58:37.246Z',
+  room: { id: 'ckovh15xa104955sj6r2tqaw1c', name: '38683b87f2664' },
+}
+
+let i = 1
+// eslint-disable-next-line no-constant-condition
+while (true) {
+  api.convertFromJS(data)
+  if (i % 100000 === 0) {
+    displayMemoryUsageFromNode(initialMemoryUsage)
+  }
+  i++
+}
diff --git a/memory-testing/src/lib.rs b/memory-testing/src/lib.rs
new file mode 100644
index 00000000..a16fdb21
--- /dev/null
+++ b/memory-testing/src/lib.rs
@@ -0,0 +1,82 @@
+#[macro_use]
+extern crate napi_derive;
+#[macro_use]
+extern crate serde_derive;
+
+#[derive(Serialize, Deserialize)]
+pub struct Welcome {
+  id: String,
+  name: String,
+  forename: String,
+  description: String,
+  email: String,
+  phone: String,
+  #[serde(rename = "arrivalDate")]
+  arrival_date: i64,
+  #[serde(rename = "departureDate")]
+  departure_date: i64,
+  price: i64,
+  advance: i64,
+  #[serde(rename = "advanceDueDate")]
+  advance_due_date: i64,
+  kids: i64,
+  adults: i64,
+  status: String,
+  nourishment: String,
+  #[serde(rename = "createdAt")]
+  created_at: String,
+  room: Room,
+}
+
+#[derive(Serialize, Deserialize)]
+pub struct Room {
+  id: String,
+  name: String,
+}
+
+#[js_function]
+fn test_async(ctx: napi::CallContext) -> napi::Result<napi::JsObject> {
+  let data = serde_json::json!({
+      "findFirstBooking": {
+          "id": "ckovh15xa104945sj64rdk8oas",
+          "name": "1883da9ff9152",
+          "forename": "221c99bedc6a4",
+          "description": "8bf86b62ce6a",
+          "email": "9d57a869661cc",
+          "phone": "7e0c58d147215",
+          "arrivalDate": -92229669,
+          "departureDate": 202138795,
+          "price": -1592700387,
+          "advance": -369294193,
+          "advanceDueDate": 925000428,
+          "kids": 520124290,
+          "adults": 1160258464,
+          "status": "NO_PAYMENT",
+          "nourishment": "BB",
+          "createdAt": "2021-05-19T12:58:37.246Z",
+          "room": { "id": "ckovh15xa104955sj6r2tqaw1c", "name": "38683b87f2664" }
+      }
+  });
+
+  ctx.env.execute_tokio_future(
+    async move { Ok(serde_json::to_string(&data).unwrap()) },
+    |env, response| {
+      env.adjust_external_memory(response.len() as i64)?;
+      env.create_string_from_std(response)
+    },
+  )
+}
+
+#[js_function(1)]
+fn from_js(ctx: napi::CallContext) -> napi::Result<napi::JsString> {
+  let input_object = ctx.get::<napi::JsObject>(0)?;
+  let a: Welcome = ctx.env.from_js_value(&input_object)?;
+  ctx.env.create_string_from_std(serde_json::to_string(&a)?)
+}
+
+#[module_exports]
+fn init(mut exports: napi::JsObject) -> napi::Result<()> {
+  exports.create_named_method("testAsync", test_async)?;
+  exports.create_named_method("convertFromJS", from_js)?;
+  Ok(())
+}
diff --git a/memory-testing/test-util.mjs b/memory-testing/test-util.mjs
new file mode 100644
index 00000000..6133b8fe
--- /dev/null
+++ b/memory-testing/test-util.mjs
@@ -0,0 +1,79 @@
+import { setTimeout } from 'timers'
+import { promisify } from 'util'
+
+import chalk from 'chalk'
+import Dockerode from 'dockerode'
+import prettyBytes from 'pretty-bytes'
+
+const sleep = promisify(setTimeout)
+
+const client = new Dockerode()
+
+export async function createSuite(testFile, maxMemoryUsage) {
+  console.info(chalk.cyanBright('Create container'))
+
+  const container = await client.createContainer({
+    Image: 'node:lts-slim',
+    Cmd: ['/bin/bash', '-c', `node memory-testing/${testFile}.js`],
+    AttachStdout: true,
+    AttachStderr: true,
+    Tty: true,
+    WorkingDir: '/napi-rs',
+    Env: ['MAX_OLD_SPACE_SIZE=256', 'FORCE_COLOR=1'],
+    HostConfig: {
+      Binds: [`${process.cwd()}:/napi-rs:rw`],
+      Memory: 256 * 1024 * 1024,
+    },
+  })
+
+  console.info(chalk.cyanBright('Container created, starting ...'))
+
+  await container.start()
+
+  container.attach(
+    { stream: true, stdout: true, stderr: true },
+    function (err, stream) {
+      if (err) {
+        console.error(err)
+        process.exit(1)
+      }
+      stream.pipe(process.stdout)
+    },
+  )
+
+  const stats = await container.stats()
+
+  let shouldAssetMemoryUsage = false
+
+  const initialMemoryUsage = await new Promise((resolve, reject) => {
+    stats.on('data', (d) => {
+      const { memory_stats } = JSON.parse(d.toString('utf8'))
+      resolve(memory_stats.usage)
+      if (shouldAssetMemoryUsage && memory_stats?.usage) {
+        const memoryGrowth = memory_stats.usage - initialMemoryUsage
+        if (memoryGrowth > maxMemoryUsage ?? initialMemoryUsage) {
+          console.info(
+            chalk.redBright(
+              `Potential memory leak, memory growth: ${prettyBytes(
+                memoryGrowth,
+              )}`,
+            ),
+          )
+          process.exit(1)
+        }
+      }
+    })
+    stats.on('error', reject)
+  })
+
+  console.info(
+    chalk.red(`Initial memory usage: ${prettyBytes(initialMemoryUsage)}`),
+  )
+
+  await sleep(60000)
+
+  shouldAssetMemoryUsage = true
+
+  await container.stop()
+  await container.remove()
+}
diff --git a/memory-testing/tokio-future.js b/memory-testing/tokio-future.js
new file mode 100644
index 00000000..2d125afd
--- /dev/null
+++ b/memory-testing/tokio-future.js
@@ -0,0 +1,22 @@
+const displayMemoryUsageFromNode = require('./util')
+
+const initialMemoryUsage = process.memoryUsage()
+
+const api = require(`./index.node`)
+
+async function main() {
+  let i = 1
+  // eslint-disable-next-line no-constant-condition
+  while (true) {
+    await api.testAsync()
+    if (i % 100000 === 0) {
+      displayMemoryUsageFromNode(initialMemoryUsage)
+    }
+    i++
+  }
+}
+
+main().catch((e) => {
+  console.error(e)
+  process.exit(1)
+})
diff --git a/memory-testing/util.js b/memory-testing/util.js
new file mode 100644
index 00000000..cf782f2d
--- /dev/null
+++ b/memory-testing/util.js
@@ -0,0 +1,25 @@
+const chalk = require('chalk')
+const prettyBytes = require('pretty-bytes')
+const { table } = require('table')
+
+module.exports = function displayMemoryUsageFromNode(initialMemoryUsage) {
+  const finalMemoryUsage = process.memoryUsage()
+  const titles = Object.keys(initialMemoryUsage).map((k) =>
+    chalk.whiteBright(k),
+  )
+  const tableData = [titles]
+  const diffColumn = []
+  for (const [key, value] of Object.entries(initialMemoryUsage)) {
+    const diff = finalMemoryUsage[key] - value
+    const prettyDiff = prettyBytes(diff, { signed: true })
+    if (diff > 0) {
+      diffColumn.push(chalk.red(prettyDiff))
+    } else if (diff < 0) {
+      diffColumn.push(chalk.green(prettyDiff))
+    } else {
+      diffColumn.push(chalk.grey(prettyDiff))
+    }
+  }
+  tableData.push(diffColumn)
+  console.info(table(tableData))
+}
diff --git a/napi/src/env.rs b/napi/src/env.rs
index 937b1260..319ea073 100644
--- a/napi/src/env.rs
+++ b/napi/src/env.rs
@@ -1109,11 +1109,11 @@ impl Env {
       .map_err(|e| match e {
         TrySendError::Full(_) => Error::new(
           Status::QueueFull,
-          format!("Failed to run future: no available capacity"),
+          "Failed to run future: no available capacity".to_owned(),
         ),
         TrySendError::Closed(_) => Error::new(
           Status::Closing,
-          format!("Failed to run future: receiver closed"),
+          "Failed to run future: receiver closed".to_string(),
         ),
       })?;
     Ok(unsafe { JsObject::from_raw_unchecked(self.0, raw_promise) })
diff --git a/napi/src/js_values/de.rs b/napi/src/js_values/de.rs
index 64b07827..96c080bd 100644
--- a/napi/src/js_values/de.rs
+++ b/napi/src/js_values/de.rs
@@ -30,7 +30,7 @@ impl<'x, 'de, 'env> serde::de::Deserializer<'x> for &'de mut De<'env> {
       ValueType::Number => {
         let js_number: f64 =
           unsafe { JsNumber::from_raw_unchecked(self.0.env, self.0.value).try_into()? };
-        if js_number.trunc() == js_number {
+        if (js_number.trunc() - js_number).abs() < f64::EPSILON {
           visitor.visit_i64(js_number as i64)
         } else {
           visitor.visit_f64(js_number)
diff --git a/napi/src/js_values/ser.rs b/napi/src/js_values/ser.rs
index 41afe393..762d3be9 100644
--- a/napi/src/js_values/ser.rs
+++ b/napi/src/js_values/ser.rs
@@ -338,7 +338,7 @@ impl ser::SerializeSeq for SeqSerializer {
       self.current_index as _,
       JsUnknown(value.serialize(Ser::new(&env))?),
     )?;
-    self.current_index = self.current_index + 1;
+    self.current_index += 1;
     Ok(())
   }
 
@@ -362,7 +362,7 @@ impl ser::SerializeTuple for SeqSerializer {
       self.current_index as _,
       JsUnknown(value.serialize(Ser::new(&env))?),
     )?;
-    self.current_index = self.current_index + 1;
+    self.current_index += 1;
     Ok(())
   }
 
@@ -387,7 +387,7 @@ impl ser::SerializeTupleStruct for SeqSerializer {
       self.current_index as _,
       JsUnknown(value.serialize(Ser::new(&env))?),
     )?;
-    self.current_index = self.current_index + 1;
+    self.current_index += 1;
     Ok(())
   }
 
@@ -412,7 +412,7 @@ impl ser::SerializeTupleVariant for SeqSerializer {
       self.current_index as _,
       JsUnknown(value.serialize(Ser::new(&env))?),
     )?;
-    self.current_index = self.current_index + 1;
+    self.current_index += 1;
     Ok(())
   }
 
diff --git a/napi/src/js_values/string/latin1.rs b/napi/src/js_values/string/latin1.rs
index 2f6e7c43..d39f5736 100644
--- a/napi/src/js_values/string/latin1.rs
+++ b/napi/src/js_values/string/latin1.rs
@@ -1,8 +1,5 @@
 use std::mem::ManuallyDrop;
 
-#[cfg(feature = "latin1")]
-use encoding_rs;
-
 use crate::JsString;
 
 #[cfg(feature = "latin1")]
diff --git a/napi/src/threadsafe_function.rs b/napi/src/threadsafe_function.rs
index 483fb910..e0d3d929 100644
--- a/napi/src/threadsafe_function.rs
+++ b/napi/src/threadsafe_function.rs
@@ -1,3 +1,5 @@
+#![allow(clippy::single_component_path_imports)]
+
 use std::convert::Into;
 use std::ffi::CString;
 use std::marker::PhantomData;
@@ -23,9 +25,9 @@ pub enum ThreadsafeFunctionCallMode {
   Blocking,
 }
 
-impl Into<napi_threadsafe_function_call_mode> for ThreadsafeFunctionCallMode {
-  fn into(self) -> napi_threadsafe_function_call_mode {
-    match self {
+impl From<ThreadsafeFunctionCallMode> for napi_threadsafe_function_call_mode {
+  fn from(value: ThreadsafeFunctionCallMode) -> Self {
+    match value {
       ThreadsafeFunctionCallMode::Blocking => {
         napi_threadsafe_function_call_mode::napi_tsfn_blocking
       }
@@ -232,7 +234,7 @@ impl<T: 'static, ES: ErrorStrategy::T> ThreadsafeFunction<T, ES> {
     if self.aborted.load(Ordering::Acquire) {
       return Err(Error::new(
         Status::Closing,
-        format!("Can not ref, Thread safe function already aborted"),
+        "Can not ref, Thread safe function already aborted".to_string(),
       ));
     }
     self.ref_count.fetch_add(1, Ordering::AcqRel);
@@ -245,7 +247,7 @@ impl<T: 'static, ES: ErrorStrategy::T> ThreadsafeFunction<T, ES> {
     if self.aborted.load(Ordering::Acquire) {
       return Err(Error::new(
         Status::Closing,
-        format!("Can not unref, Thread safe function already aborted"),
+        "Can not unref, Thread safe function already aborted".to_string(),
       ));
     }
     self.ref_count.fetch_sub(1, Ordering::AcqRel);
@@ -536,4 +538,5 @@ macro_rules! type_level_enum {(
   $( #[doc = $doc] )*
   $item
 )}
+
 use type_level_enum;
diff --git a/package.json b/package.json
index a55ae25f..8adeb55a 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
   "version": "0.0.0",
   "description": "A minimal library for building compiled Node add-ons in Rust.",
   "private": "true",
-  "workspaces": ["cli", "triples"],
+  "workspaces": ["cli", "triples", "memory-testing"],
   "repository": {
     "type": "git",
     "url": "git@github.com:Brooooooklyn/napi-rs.git"
@@ -13,6 +13,7 @@
     "bench": "cross-env TS_NODE_PROJECT='./bench/tsconfig.json' node -r ts-node/register/transpile-only bench/bench.ts",
     "build": "tsc -p tsconfig.json && shx chmod 777 cli/scripts/index.js && node generate-triplelist.js",
     "build:bench": "yarn --cwd ./bench build",
+    "build:memory": "yarn --cwd ./memory-testing build",
     "build:test": "yarn --cwd ./test_module build",
     "build:test:aarch64": "yarn --cwd ./test_module build-aarch64",
     "build:test:android": "yarn --cwd ./test_module build --target aarch64-linux-android",
@@ -23,9 +24,10 @@
     "format:rs": "cargo fmt",
     "format:source": "prettier --config ./package.json --write ./**/*.{js,ts}",
     "format:yaml": "prettier --parser yaml --write ./**/*.{yml,yaml}",
-    "lint": "eslint -c .eslintrc.yml ./cli/**/*.ts ./test_module/**/*.{ts,js}",
+    "lint": "eslint -c .eslintrc.yml .",
     "prepublishOnly": "npm run build && pinst --disable",
     "test": "ava",
+    "test:memory": "node memory-testing/index.mjs",
     "postinstall": "husky install",
     "postpublish": "pinst --enable"
   },
diff --git a/test_module/Cargo.toml b/test_module/Cargo.toml
index 4bd5ab0e..ade169e5 100644
--- a/test_module/Cargo.toml
+++ b/test_module/Cargo.toml
@@ -23,6 +23,3 @@ tokio = {version = "1", features = ["default", "fs"]}
 
 [build-dependencies]
 napi-build = {path = "../build"}
-
-[profile.release]
-lto = true
diff --git a/test_module/__test__/arraybuffer.spec.ts b/test_module/__test__/arraybuffer.spec.ts
index 100dc70b..911d2037 100644
--- a/test_module/__test__/arraybuffer.spec.ts
+++ b/test_module/__test__/arraybuffer.spec.ts
@@ -32,7 +32,7 @@ test('should be able to mutate Int16Array', (t) => {
 test('should be able to mutate Float32Array', (t) => {
   const fixture = new Float32Array([0, 1, 2])
   bindings.mutateFloat32Array(fixture)
-  t.true(Math.abs(fixture[0] - 3.14) <= 0.0001)
+  t.true(Math.abs(fixture[0] - 3.33) <= 0.0001)
 })
 
 test('should be able to mutate Float64Array', (t) => {
diff --git a/test_module/src/arraybuffer.rs b/test_module/src/arraybuffer.rs
index 4ebb1348..2ce536c7 100644
--- a/test_module/src/arraybuffer.rs
+++ b/test_module/src/arraybuffer.rs
@@ -37,7 +37,7 @@ pub fn mutate_int16_array(ctx: CallContext) -> Result<JsUndefined> {
 pub fn mutate_float32_array(ctx: CallContext) -> Result<JsUndefined> {
   let mut buffer = ctx.get::<JsTypedArray>(0)?.into_value()?;
   let buffer_mut_ref: &mut [f32] = buffer.as_mut();
-  buffer_mut_ref[0] = 3.14;
+  buffer_mut_ref[0] = 3.33;
   ctx.env.get_undefined()
 }
 
diff --git a/test_module/src/class.rs b/test_module/src/class.rs
index 4e8438ea..615d0123 100644
--- a/test_module/src/class.rs
+++ b/test_module/src/class.rs
@@ -41,7 +41,7 @@ fn add_native_count(ctx: CallContext) -> Result<JsNumber> {
   let add: i32 = ctx.get::<JsNumber>(0)?.try_into()?;
   let this: JsObject = ctx.this_unchecked();
   let native_class: &mut NativeClass = ctx.env.unwrap(&this)?;
-  native_class.value = native_class.value + add;
+  native_class.value += add;
   ctx.env.create_int32(native_class.value)
 }
 
@@ -55,7 +55,7 @@ fn new_test_class(ctx: CallContext) -> Result<JsObject> {
       .env
       .define_class("TestClass", test_class_constructor, properties.as_slice())?;
 
-  test_class.new(&vec![ctx.env.create_int32(42)?])
+  test_class.new(&[ctx.env.create_int32(42)?])
 }
 
 pub fn register_js(exports: &mut JsObject) -> Result<()> {
diff --git a/test_module/src/lib.rs b/test_module/src/lib.rs
index 0749e63f..c734807d 100644
--- a/test_module/src/lib.rs
+++ b/test_module/src/lib.rs
@@ -1,3 +1,5 @@
+#![allow(unused_variables)]
+
 #[macro_use]
 extern crate napi_derive;
 #[macro_use]
diff --git a/test_module/src/serde.rs b/test_module/src/serde.rs
index bb24543a..5ef08954 100644
--- a/test_module/src/serde.rs
+++ b/test_module/src/serde.rs
@@ -76,7 +76,7 @@ make_test!(make_map, {
 });
 
 make_test!(make_object, {
-  let value = AnObjectTwo {
+  AnObjectTwo {
     a: 1,
     b: vec![1, 2],
     c: "abc".into(),
@@ -97,11 +97,10 @@ make_test!(make_object, {
     p: vec![1., 2., 3.5],
     q: 9998881288248882845242411222333,
     r: -3332323888900001232323022221345,
-  };
-  value
+  }
 });
 
-const NUMBER_BYTES: &'static [u8] = &[255u8, 254, 253];
+const NUMBER_BYTES: &[u8] = &[255u8, 254, 253];
 
 make_test!(make_buff, { serde_bytes::Bytes::new(NUMBER_BYTES) });
 
diff --git a/tsconfig.root-lint.json b/tsconfig.root-lint.json
index 7894a21c..77829e5b 100644
--- a/tsconfig.root-lint.json
+++ b/tsconfig.root-lint.json
@@ -1,4 +1,10 @@
 {
   "extends": "./tsconfig.json",
-  "files": ["./ava.config.js", "./generate-triplelist.js", "triples/index.js"]
+  "include": [
+    "./ava.config.js",
+    "./generate-triplelist.js",
+    "./triples/index.js",
+    "./memory-testing/*.js",
+    "./memory-testing/*.mjs"
+  ]
 }
diff --git a/yarn.lock b/yarn.lock
index 2d66df69..94177cd1 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1088,6 +1088,13 @@
   resolved "https://registry.npmjs.org/@types/debug/-/debug-4.1.5.tgz#b14efa8852b7768d898906613c23f688713e02cd"
   integrity sha512-Q1y515GcOdTHgagaVFhHnIFQ38ygs/kmxdNpvpou+raI9UO3YZcHDngBSYKQklcKlvA7iuQlmIKbzvmxcOE9CQ==
 
+"@types/dockerode@^3.2.3":
+  version "3.2.3"
+  resolved "https://registry.npmjs.org/@types/dockerode/-/dockerode-3.2.3.tgz#ae363b5bfa9f2989dab07f6e7ae3791e6431d145"
+  integrity sha512-nZRhpSxm3PYianRBcRExcHxDvEzYHUPfGCnRL5Fe4/fSEZbtxrRNJ7okzCans3lXxj2t298EynFHGTnTC2f1Iw==
+  dependencies:
+    "@types/node" "*"
+
 "@types/inquirer@^7.3.1":
   version "7.3.1"
   resolved "https://registry.npmjs.org/@types/inquirer/-/inquirer-7.3.1.tgz#1f231224e7df11ccfaf4cf9acbcc3b935fea292d"
@@ -1463,7 +1470,7 @@ asap@^2.0.0:
   resolved "https://registry.npmjs.org/asap/-/asap-2.0.6.tgz#e50347611d7e690943208bbdafebcbc2fb866d46"
   integrity sha1-5QNHYR1+aQlDIIu9r+vLwvuGbUY=
 
-asn1@~0.2.3:
+asn1@~0.2.0, asn1@~0.2.3:
   version "0.2.4"
   resolved "https://registry.npmjs.org/asn1/-/asn1-0.2.4.tgz#8d2475dfab553bb33e77b54e59e880bb8ce23136"
   integrity sha512-jxwzQpLQjSmWXgwaCZE9Nz+glAG01yF1QnWgbhGwHI5A6FRIEY6IVqtHhIepHqI7/kyEyQEagBC5mBEFlIYvdg==
@@ -1572,7 +1579,7 @@ base64-js@^1.3.1:
   resolved "https://registry.npmjs.org/base64-js/-/base64-js-1.5.1.tgz#1b1b440160a5bf7ad40b650f095963481903930a"
   integrity sha512-AKpaYlHn8t4SVbOHCy+b5+KKgvR4vrsD8vbvrbiQJps7fKDTkjkDry6ji0rUJjC0kzbNePLwzxq8iypo41qeWA==
 
-bcrypt-pbkdf@^1.0.0:
+bcrypt-pbkdf@^1.0.0, bcrypt-pbkdf@^1.0.2:
   version "1.0.2"
   resolved "https://registry.npmjs.org/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.2.tgz#a4301d389b6a43f9b67ff3ca11a3f6637e360e9e"
   integrity sha1-pDAdOJtqQ/m2f/PKEaP2Y342Dp4=
@@ -1613,7 +1620,7 @@ binary-extensions@^2.0.0:
   resolved "https://registry.npmjs.org/binary-extensions/-/binary-extensions-2.2.0.tgz#75f502eeaf9ffde42fc98829645be4ea76bd9e2d"
   integrity sha512-jDctJ/IVQbZoJykoeHbhXpOlNBqGNcwXJKJog42E5HDPUwQTSdjCHdihjj0DlnheQ7blbT6dHOafNAiS8ooQKA==
 
-bl@^4.1.0:
+bl@^4.0.3, bl@^4.1.0:
   version "4.1.0"
   resolved "https://registry.npmjs.org/bl/-/bl-4.1.0.tgz#451535264182bec2fbbc83a62ab98cf11d9f7b3a"
   integrity sha512-1W07cM9gS6DcLperZfFSj+bWLtaPGSOHWhPiGzXmvVJbRLdG82sH/Kn8EtW1VqWVA54AKf2h5k5BbnIbwF3h6w==
@@ -2395,6 +2402,24 @@ dir-glob@^3.0.1:
   dependencies:
     path-type "^4.0.0"
 
+docker-modem@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.npmjs.org/docker-modem/-/docker-modem-3.0.0.tgz#cb912ad8daed42f858269fb3be6944df281ec12d"
+  integrity sha512-WwFajJ8I5geZ/dDZ5FDMDA6TBkWa76xWwGIGw8uzUjNUGCN0to83wJ8Oi1AxrJTC0JBn+7fvIxUctnawtlwXeg==
+  dependencies:
+    debug "^4.1.1"
+    readable-stream "^3.5.0"
+    split-ca "^1.0.1"
+    ssh2 "^0.8.7"
+
+dockerode@^3.3.0:
+  version "3.3.0"
+  resolved "https://registry.npmjs.org/dockerode/-/dockerode-3.3.0.tgz#bedaf48ef9fa9124275a54a9881a92374c51008e"
+  integrity sha512-St08lfOjpYCOXEM8XA0VLu3B3hRjtddODphNW5GFoA0AS3JHgoPQKOz0Qmdzg3P+hUPxhb02g1o1Cu1G+U3lRg==
+  dependencies:
+    docker-modem "^3.0.0"
+    tar-fs "~2.0.1"
+
 doctrine@^2.1.0:
   version "2.1.0"
   resolved "https://registry.npmjs.org/doctrine/-/doctrine-2.1.0.tgz#5cd01fc101621b42c4cd7f5d1a66243716d3f39d"
@@ -2463,7 +2488,7 @@ encoding@^0.1.12:
   dependencies:
     iconv-lite "^0.6.2"
 
-end-of-stream@^1.1.0:
+end-of-stream@^1.1.0, end-of-stream@^1.4.1:
   version "1.4.4"
   resolved "https://registry.npmjs.org/end-of-stream/-/end-of-stream-1.4.4.tgz#5ae64a5f45057baf3626ec14da0ca5e4b2431eb0"
   integrity sha512-+uw1inIHVPQoaVuHzRyXd21icM+cnt4CzD5rW+NC1wjOUSTOs+Te7FOv7AhN7vS9x/oIyhLP5PR1H+phQAHu5Q==
@@ -2922,6 +2947,11 @@ form-data@~2.3.2:
     combined-stream "^1.0.6"
     mime-types "^2.1.12"
 
+fs-constants@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.npmjs.org/fs-constants/-/fs-constants-1.0.0.tgz#6be0de9be998ce16af8afc24497b9ee9b7ccd9ad"
+  integrity sha512-y6OAwoSIf7FyjMIv94u+b5rdheZEjzR63GTyZJm5qh4Bi+2YgwLCcI/fPFZkL5PSixOt6ZNKm+w+Hfp/Bciwow==
+
 fs-extra@^9.0.1, fs-extra@^9.1.0:
   version "9.1.0"
   resolved "https://registry.npmjs.org/fs-extra/-/fs-extra-9.1.0.tgz#5954460c764a8da2094ba3554bf839e6b9a7c86d"
@@ -4366,6 +4396,7 @@ minipass-fetch@^1.3.0, minipass-fetch@^1.3.2:
   resolved "https://registry.npmjs.org/minipass-fetch/-/minipass-fetch-1.3.3.tgz#34c7cea038c817a8658461bf35174551dce17a0a"
   integrity sha512-akCrLDWfbdAWkMLBxJEeWTdNsjML+dt5YgOI4gJ53vuO0vrmYQkUPxa6j6V65s9CcePIr2SSWqjT2EcrNseryQ==
   dependencies:
+    encoding "^0.1.12"
     minipass "^3.1.0"
     minipass-sized "^1.0.3"
     minizlib "^2.0.0"
@@ -4431,6 +4462,11 @@ minizlib@^2.0.0, minizlib@^2.1.1:
     minipass "^3.0.0"
     yallist "^4.0.0"
 
+mkdirp-classic@^0.5.2:
+  version "0.5.3"
+  resolved "https://registry.npmjs.org/mkdirp-classic/-/mkdirp-classic-0.5.3.tgz#fa10c9115cc6d8865be221ba47ee9bed78601113"
+  integrity sha512-gKLcREMhtuZRwRAfqP3RFW+TK4JqApVBtOIftVgjuABpAtpxhPGaDcfvbhNvD0B8iD1oUr/txX35NjcaY6Ns/A==
+
 mkdirp-infer-owner@^2.0.0:
   version "2.0.0"
   resolved "https://registry.npmjs.org/mkdirp-infer-owner/-/mkdirp-infer-owner-2.0.0.tgz#55d3b368e7d89065c38f32fd38e638f0ab61d316"
@@ -5247,6 +5283,11 @@ prettier@^2.1.2, prettier@^2.3.0:
   resolved "https://registry.npmjs.org/prettier/-/prettier-2.3.0.tgz#b6a5bf1284026ae640f17f7ff5658a7567fc0d18"
   integrity sha512-kXtO4s0Lz/DW/IJ9QdWhAf7/NmPWQXkFr/r/WkR3vyI+0v8amTDxiaQSLzs8NBlytfLWX/7uQUMIW677yLKl4w==
 
+pretty-bytes@^5.6.0:
+  version "5.6.0"
+  resolved "https://registry.npmjs.org/pretty-bytes/-/pretty-bytes-5.6.0.tgz#356256f643804773c82f64723fe78c92c62beaeb"
+  integrity sha512-FFw039TmrBqFK8ma/7OL3sDz/VytdtJr044/QUJtH0wK9lb9jLq9tJyIxUwtQJHwar2BqtiA4iCWSwo9JLkzFg==
+
 pretty-ms@^7.0.1:
   version "7.0.1"
   resolved "https://registry.npmjs.org/pretty-ms/-/pretty-ms-7.0.1.tgz#7d903eaab281f7d8e03c66f867e239dc32fb73e8"
@@ -5481,7 +5522,7 @@ read@1, read@~1.0.1:
   dependencies:
     mute-stream "~0.0.4"
 
-readable-stream@3, readable-stream@^3.0.0, readable-stream@^3.0.2, readable-stream@^3.4.0:
+readable-stream@3, readable-stream@^3.0.0, readable-stream@^3.0.2, readable-stream@^3.1.1, readable-stream@^3.4.0, readable-stream@^3.5.0:
   version "3.6.0"
   resolved "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.0.tgz#337bbda3adc0706bd3e024426a286d4b4b2c9198"
   integrity sha512-BViHy7LKeTz4oNnkcLJ+lVSL6vpiFeX6/d3oSH8zCW7UxP2onchk+vTGB143xuFjHS3deTgkKoXXymXqymiIdA==
@@ -5939,6 +5980,11 @@ spdx-license-ids@^3.0.0:
   resolved "https://registry.npmjs.org/spdx-license-ids/-/spdx-license-ids-3.0.7.tgz#e9c18a410e5ed7e12442a549fbd8afa767038d65"
   integrity sha512-U+MTEOO0AiDzxwFvoa4JVnMV6mZlJKk2sBLt90s7G0Gd0Mlknc7kxEn3nuDPNZRta7O2uy8oLcZLVT+4sqNZHQ==
 
+split-ca@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.npmjs.org/split-ca/-/split-ca-1.0.1.tgz#6c83aff3692fa61256e0cd197e05e9de157691a6"
+  integrity sha1-bIOv82kvphJW4M0ZfgXp3hV2kaY=
+
 split-on-first@^1.0.0:
   version "1.1.0"
   resolved "https://registry.npmjs.org/split-on-first/-/split-on-first-1.1.0.tgz#f610afeee3b12bce1d0c30425e76398b78249a5f"
@@ -5963,6 +6009,22 @@ sprintf-js@~1.0.2:
   resolved "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz#04e6926f662895354f3dd015203633b857297e2c"
   integrity sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=
 
+ssh2-streams@~0.4.10:
+  version "0.4.10"
+  resolved "https://registry.npmjs.org/ssh2-streams/-/ssh2-streams-0.4.10.tgz#48ef7e8a0e39d8f2921c30521d56dacb31d23a34"
+  integrity sha512-8pnlMjvnIZJvmTzUIIA5nT4jr2ZWNNVHwyXfMGdRJbug9TpI3kd99ffglgfSWqujVv/0gxwMsDn9j9RVst8yhQ==
+  dependencies:
+    asn1 "~0.2.0"
+    bcrypt-pbkdf "^1.0.2"
+    streamsearch "~0.1.2"
+
+ssh2@^0.8.7:
+  version "0.8.9"
+  resolved "https://registry.npmjs.org/ssh2/-/ssh2-0.8.9.tgz#54da3a6c4ba3daf0d8477a538a481326091815f3"
+  integrity sha512-GmoNPxWDMkVpMFa9LVVzQZHF6EW3WKmBwL+4/GeILf2hFmix5Isxm7Amamo8o7bHiU0tC+wXsGcUXOxp8ChPaw==
+  dependencies:
+    ssh2-streams "~0.4.10"
+
 sshpk@^1.7.0:
   version "1.16.1"
   resolved "https://registry.npmjs.org/sshpk/-/sshpk-1.16.1.tgz#fb661c0bef29b39db40769ee39fa70093d6f6877"
@@ -5997,6 +6059,11 @@ stats-median@^1.0.1:
   resolved "https://registry.npmjs.org/stats-median/-/stats-median-1.0.1.tgz#ca8497cb1014d23d145db4d6fc93c8e815eed3ef"
   integrity sha512-IYsheLg6dasD3zT/w9+8Iq9tcIQqqu91ZIpJOnIEM25C3X/g4Tl8mhXwW2ZQpbrsJISr9+wizEYgsibN5/b32Q==
 
+streamsearch@~0.1.2:
+  version "0.1.2"
+  resolved "https://registry.npmjs.org/streamsearch/-/streamsearch-0.1.2.tgz#808b9d0e56fc273d809ba57338e929919a1a9f1a"
+  integrity sha1-gIudDlb8Jz2Am6VzOOkpkZoanxo=
+
 strict-uri-encode@^2.0.0:
   version "2.0.0"
   resolved "https://registry.npmjs.org/strict-uri-encode/-/strict-uri-encode-2.0.0.tgz#b9c7330c7042862f6b142dc274bbcc5866ce3546"
@@ -6203,7 +6270,7 @@ supports-color@^7.1.0:
   dependencies:
     has-flag "^4.0.0"
 
-table@^6.0.9:
+table@^6.0.9, table@^6.7.1:
   version "6.7.1"
   resolved "https://registry.npmjs.org/table/-/table-6.7.1.tgz#ee05592b7143831a8c94f3cee6aae4c1ccef33e2"
   integrity sha512-ZGum47Yi6KOOFDE8m223td53ath2enHcYLgOCjGr5ngu8bdIARQk6mN/wRMv4yMRcHnCSnHbCEha4sobQx5yWg==
@@ -6215,6 +6282,27 @@ table@^6.0.9:
     string-width "^4.2.0"
     strip-ansi "^6.0.0"
 
+tar-fs@~2.0.1:
+  version "2.0.1"
+  resolved "https://registry.npmjs.org/tar-fs/-/tar-fs-2.0.1.tgz#e44086c1c60d31a4f0cf893b1c4e155dabfae9e2"
+  integrity sha512-6tzWDMeroL87uF/+lin46k+Q+46rAJ0SyPGz7OW7wTgblI273hsBqk2C1j0/xNadNLKDTUL9BukSjB7cwgmlPA==
+  dependencies:
+    chownr "^1.1.1"
+    mkdirp-classic "^0.5.2"
+    pump "^3.0.0"
+    tar-stream "^2.0.0"
+
+tar-stream@^2.0.0:
+  version "2.2.0"
+  resolved "https://registry.npmjs.org/tar-stream/-/tar-stream-2.2.0.tgz#acad84c284136b060dc3faa64474aa9aebd77287"
+  integrity sha512-ujeqbceABgwMZxEJnk2HDY2DlnUZ+9oEcb1KzTVfYHio0UE6dG71n60d8D2I4qNvleWrrXpmjpt7vZeF1LnMZQ==
+  dependencies:
+    bl "^4.0.3"
+    end-of-stream "^1.4.1"
+    fs-constants "^1.0.0"
+    inherits "^2.0.3"
+    readable-stream "^3.1.1"
+
 tar@^4.4.12:
   version "4.4.13"
   resolved "https://registry.npmjs.org/tar/-/tar-4.4.13.tgz#43b364bc52888d555298637b10d60790254ab525"