diff --git a/packages/cli/babel/index.js b/packages/cli/babel/index.js
index 6d54506f8..6fff82da7 100644
--- a/packages/cli/babel/index.js
+++ b/packages/cli/babel/index.js
@@ -21,7 +21,7 @@ var defaultBrowserListDev = [
 	'ios_saf >= 10.3',
 	'edge >= 16',
 	'opera >= 48',
-	'samsung >= 8.2'
+	'samsung >= 8.2',
 ];
 
 // preact-cli babel configs
diff --git a/packages/cli/sw/contants.js b/packages/cli/sw/constants.js
similarity index 100%
rename from packages/cli/sw/contants.js
rename to packages/cli/sw/constants.js
diff --git a/packages/cli/sw/index.js b/packages/cli/sw/index.js
index 52259f9ae..da325d51f 100644
--- a/packages/cli/sw/index.js
+++ b/packages/cli/sw/index.js
@@ -1,7 +1,7 @@
 import { registerRoute, setCatchHandler } from 'workbox-routing';
 import { precacheAndRoute, getCacheKeyForURL } from 'workbox-precaching';
 import { isNav } from './utils';
-import { NETWORK_HANDLER, PRECACHING_OPTIONS } from './contants';
+import { NETWORK_HANDLER, PRECACHING_OPTIONS } from './constants';
 
 export function getFiles() {
 	return self.__WB_MANIFEST;
diff --git a/packages/cli/tests/build.test.js b/packages/cli/tests/build.test.js
index a2be5370b..0f49700e3 100644
--- a/packages/cli/tests/build.test.js
+++ b/packages/cli/tests/build.test.js
@@ -182,8 +182,10 @@ describe('preact build', () => {
 			`${dir}/build/${bundleFile}`,
 			'utf8'
 		);
+
 		// "Hello World!" should replace 'process.env.PREACT_APP_MY_VARIABLE'
-		expect(transpiledChunk.includes('console.log("Hello World!")')).toBe(true);
+		expect(transpiledChunk.includes('"Hello World!"')).toBe(true);
+		expect(transpiledChunk.includes('PREACT_APP_MY_VARIABLE')).toBe(false);
 	});
 
 	it('should respect `publicPath` value', async () => {
diff --git a/packages/cli/tests/lib/chrome.js b/packages/cli/tests/lib/chrome.js
index 1f9d34f9c..78230c37e 100644
--- a/packages/cli/tests/lib/chrome.js
+++ b/packages/cli/tests/lib/chrome.js
@@ -12,7 +12,7 @@ module.exports.waitUntilExpression = async function (page, expression) {
 			`Waiting for ${expression}`
 		);
 
-		return result; // && result.value;
+		return result;
 	};
 
 	await waitUntil(evaluate, `Waiting for ${expression} timed out!`);
diff --git a/packages/cli/tests/lib/output.js b/packages/cli/tests/lib/output.js
index ef06c185b..095054dbc 100644
--- a/packages/cli/tests/lib/output.js
+++ b/packages/cli/tests/lib/output.js
@@ -10,7 +10,7 @@ async function tmpDir() {
 	let str = Math.random()
 		.toString(36)
 		.replace(/[^a-z]+/g, '')
-		.substr(0, 12);
+		.substring(0, 12);
 	await mkdir(output, { recursive: true });
 	return resolve(output, str);
 }
diff --git a/packages/cli/tests/subjects/custom-dotenv/index.js b/packages/cli/tests/subjects/custom-dotenv/index.js
index 9e532391e..2681c31c6 100644
--- a/packages/cli/tests/subjects/custom-dotenv/index.js
+++ b/packages/cli/tests/subjects/custom-dotenv/index.js
@@ -1 +1 @@
-console.log(process.env.PREACT_APP_MY_VARIABLE);
+export const MY_VARIABLE = process.env.PREACT_APP_MY_VARIABLE;