diff --git a/config/changelog.yaml b/config/changelog.yaml
index 21c28afa217..52655023885 100644
--- a/config/changelog.yaml
+++ b/config/changelog.yaml
@@ -3,6 +3,54 @@ unreleased:
   Added:
     core:
       - Added the new attributes.setIfUnset() method
+    plugin-banner:
+      - Added (esm) unit tests
+    plugin-bartack:
+      - Added (esm) unit tests
+    plugin-bundle:
+      - Added (esm) unit tests
+    plugin-bust:
+      - Added (esm) unit tests
+    plugin-buttons:
+      - Added (esm) unit tests
+    plugin-cutonfold:
+      - Added (esm) unit tests
+    plugin-dimension:
+      - Added (esm) unit tests
+    plugin-export-dxf:
+      - Added (esm) unit tests
+    plugin-flip:
+      - Added (esm) unit tests
+    plugin-gore:
+      - Added (esm) unit tests
+    plugin-grainline:
+      - Added (esm) unit tests
+    plugin-i18n:
+      - Added (esm) unit tests
+    plugin-logo:
+      - Added (esm) unit tests
+    plugin-measurements:
+      - Added (esm) unit tests
+    plugin-mirror:
+      - Added (esm) unit tests
+    plugin-notches:
+      - Added (esm) unit tests
+    plugin-round:
+      - Added (esm) unit tests
+    plugin-scalebox:
+      - Added (esm) unit tests
+    plugin-sprinkle:
+      - Added (esm) unit tests
+    plugin-svgattr:
+      - Added (esm) unit tests
+    plugin-theme:
+      - Added (esm) unit tests
+    plugin-title:
+      - Added (esm) unit tests
+    plugin-validate:
+      - Added (esm) unit tests
+    plugin-versionfree-svg:
+      - Added (esm) unit tests
 
   Fixed:
     plugin-buttons:
diff --git a/config/dependencies.yaml b/config/dependencies.yaml
index 41daeddf07f..ee3e919ce44 100644
--- a/config/dependencies.yaml
+++ b/config/dependencies.yaml
@@ -29,13 +29,16 @@ _types:
       'axios': &axios '0.21.2'
       'react-intl': &react-intl '^5.17.6'
       'prop-types': '^15.7.2'
-      'mocha': '^9.1.1'
-      'chai': '^4.2.0'
-      'chai-string': '^1.5.0'
-      '@babel/register': '^7.10.5'
+      'mocha': &mocha '^9.1.1'
+      'chai': &chai '^4.2.0'
+      '@babel/register': &babelregister '^7.10.5'
   plugin:
     peer:
       '@freesewing/core': *freesewing
+    dev:
+      'mocha': *mocha
+      'chai': *chai
+      '@babel/register': *babelregister
 aaron:
   peer:
     '@freesewing/brian': *freesewing
diff --git a/config/scripts.yaml b/config/scripts.yaml
index 240ff655e82..ca3e685bddf 100644
--- a/config/scripts.yaml
+++ b/config/scripts.yaml
@@ -10,11 +10,12 @@ _:
 _types:
   pattern:
     netlify: 'echo "Not configured yet"'
-    test: 'BABEL_ENV=production ../../node_modules/.bin/_mocha tests/*.test.js --require @babel/register'
-    testci: 'BABEL_ENV=production ./node_modules/.bin/_mocha tests/*.test.js --require @babel/register'
+    test: 'BABEL_ENV=production ../../node_modules/.bin/_mocha tests/*.test.mjs --require @babel/register'
+    testci: 'BABEL_ENV=production ./node_modules/.bin/_mocha tests/*.test.mjs --require @babel/register'
   plugin:
-    test: 'BABEL_ENV=production ../../node_modules/.bin/_mocha tests/*.test.js --require @babel/register'
-    prettier: "npx prettier --write 'src/*.js' 'tests/*.js'"
+    test: 'BABEL_ENV=production ../../node_modules/.bin/_mocha tests/*.test.mjs --require @babel/register'
+    testci: 'BABEL_ENV=production ../../node_modules/.bin/_mocha tests/*.test.mjs --require @babel/register'
+    prettier: "npx prettier --write 'src/*.js' 'tests/*.mjs'"
 create-freesewing-pattern:
   clean: '!'
   nodebuild: '!'
diff --git a/config/templates/tests/patterns/shared.test.js.template b/config/templates/tests/patterns/shared.test.mjs.template
similarity index 50%
rename from config/templates/tests/patterns/shared.test.js.template
rename to config/templates/tests/patterns/shared.test.mjs.template
index dae0e9c87e0..5fe7f121187 100644
--- a/config/templates/tests/patterns/shared.test.js.template
+++ b/config/templates/tests/patterns/shared.test.mjs.template
@@ -1,15 +1,17 @@
 // This file is auto-generated.
 // Changes you make will be overwritten.
-const expect = require("chai").expect;
-const models = require("@freesewing/models")
-const patterns = require("@freesewing/pattern-info")
-
-const {{ Pattern }}  = require('../dist')
+import chai from 'chai'
+import models from '@freesewing/models'
+import patterns from '@freesewing/pattern-info'
+import {{ Pattern }} from '../dist/index.mjs'
 
 // Shared tests
-const testPatternConfig = require('../../../tests/patterns/config')
-const testPatternDrafting = require('../../../tests/patterns/drafting')
-const testPatternSampling = require('../../../tests/patterns/sampling')
+import { testPatternConfig } from '../../../tests/patterns/config.mjs'
+import { testPatternDrafting } from '../../../tests/patterns/drafting.mjs'
+import { testPatternSampling } from '../../../tests/patterns/sampling.mjs'
+
+const expect = chai.expect
+
 
 // Test config
 testPatternConfig(
diff --git a/config/templates/tests/plugins/shared.test.mjs.template b/config/templates/tests/plugins/shared.test.mjs.template
new file mode 100644
index 00000000000..42cd98f4655
--- /dev/null
+++ b/config/templates/tests/plugins/shared.test.mjs.template
@@ -0,0 +1,10 @@
+// This file is auto-generated.
+// Changes you make will be overwritten.
+import freesewing from '@freesewing/core'
+import chai from 'chai'
+import plugin from '../dist/index.mjs'
+import { sharedPluginTests } from '../../../tests/plugins/shared.mjs'
+
+
+// Run shared tests
+sharedPluginTests(plugin, freesewing, chai.expect)
diff --git a/config/templates/workflows/tests.pattern.yml b/config/templates/workflows/tests.pattern.yml
index c978645df34..f2bc3cf612d 100644
--- a/config/templates/workflows/tests.pattern.yml
+++ b/config/templates/workflows/tests.pattern.yml
@@ -17,7 +17,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [12.x]
+        node-version: [14.x]
 
 {{=<% %>=}}
     steps:
diff --git a/config/templates/workflows/tests.plugin.yml b/config/templates/workflows/tests.plugin.yml
new file mode 100644
index 00000000000..7875b251468
--- /dev/null
+++ b/config/templates/workflows/tests.plugin.yml
@@ -0,0 +1,42 @@
+name: Unit tests - {{ Plugin }}
+
+on:
+  push:
+    branches:
+      - develop
+      - main
+  pull_request:
+    branches:
+      - develop
+      - main
+
+jobs:
+  test:
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [14.x]
+
+{{=<% %>=}}
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+      - name: Setup Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+<%={{ }}=%>
+      - name: Install dependencies
+        run: cd packages/{{ pattern }} && npm install
+        env:
+          CI: true
+      - name: Install peer & test dependencies
+        run: "cd packages/{{ plugin }} && npm install {{{ peerdeps }}} @freesewing/models@{{{ version }}} @freesewing/pattern-info@{{{ version }}} mocha chai"
+        env:
+          CI: true
+      - name: Build plugin
+        run: cd packages/{{ plugin }} && npm run build
+      - name: Run plugin unit tests
+        run: cd packages/{{ plugin }} && npm run testci
diff --git a/tests/patterns/config.js b/tests/patterns/config.mjs
similarity index 98%
rename from tests/patterns/config.js
rename to tests/patterns/config.mjs
index a8d5d716ae0..3529b87e74d 100644
--- a/tests/patterns/config.js
+++ b/tests/patterns/config.mjs
@@ -20,7 +20,7 @@ const deprecated = ['theo']
  * @param object models: Imported @freesewing/models
  * @param object patterns: Imported @freesewing/pattern-info
  */
-const testPatternConfig = (design, pattern, expect, models, patterns) => {
+export const testPatternConfig = (design, pattern, expect, models, patterns) => {
   it('Metadata:', () => true)
   it(`  - 'name' should match package name`, () => {
     expect(pattern.config.name).to.equal(design)
@@ -199,4 +199,3 @@ const testPatternConfig = (design, pattern, expect, models, patterns) => {
   }
 }
 
-module.exports = testPatternConfig
diff --git a/tests/patterns/drafting.js b/tests/patterns/drafting.mjs
similarity index 95%
rename from tests/patterns/drafting.js
rename to tests/patterns/drafting.mjs
index ad8aa438156..db6453556dd 100644
--- a/tests/patterns/drafting.js
+++ b/tests/patterns/drafting.mjs
@@ -1,4 +1,4 @@
-const nonHumanMeasurements = require('./non-human-measurements.js')
+import { nonHumanMeasurements } from './non-human-measurements.mjs'
 
 // Some patterns are different
 const isGarment = design => ([
@@ -22,7 +22,7 @@ const deprecated = ['theo']
  * @param object models: Imported @freesewing/models
  * @param object patterns: Imported @freesewing/pattern-info
  */
-const testPatternDrafting = (design, Pattern, expect, models, patterns, log=false) => {
+export const testPatternDrafting = (design, Pattern, expect, models, patterns, log=false) => {
   // Load non-human measurements
   const nonHuman = nonHumanMeasurements(models)
 
@@ -145,4 +145,3 @@ const testPatternDrafting = (design, Pattern, expect, models, patterns, log=fals
   }
 }
 
-module.exports = testPatternDrafting
diff --git a/tests/patterns/non-human-measurements.js b/tests/patterns/non-human-measurements.mjs
similarity index 96%
rename from tests/patterns/non-human-measurements.js
rename to tests/patterns/non-human-measurements.mjs
index 76571a9a0a1..6fd61c46604 100644
--- a/tests/patterns/non-human-measurements.js
+++ b/tests/patterns/non-human-measurements.mjs
@@ -10,7 +10,7 @@ const nonHuman = {
 }
 const round = val => Math.round(val*10)/10
 
-module.exports = function nonHumanMeasurements(models) {
+export const nonHumanMeasurements = models => {
 
   const { withBreasts, withoutBreasts } = models
 
diff --git a/tests/patterns/sampling.js b/tests/patterns/sampling.mjs
similarity index 94%
rename from tests/patterns/sampling.js
rename to tests/patterns/sampling.mjs
index f25e36886dc..4fe2ddfc728 100644
--- a/tests/patterns/sampling.js
+++ b/tests/patterns/sampling.mjs
@@ -1,4 +1,4 @@
-const nonHumanMeasurements = require('./non-human-measurements.js')
+import { nonHumanMeasurements } from './non-human-measurements.mjs'
 /*
  * This runs unit tests for pattern sampling
  * It expects the following:
@@ -14,7 +14,7 @@ const nonHumanMeasurements = require('./non-human-measurements.js')
 // Some patterns are deprecated and won't support more stringent doll/giant tests
 const deprecated = ['theo']
 
-const testPatternSampling = (design, Pattern, expect, models, patterns) => {
+export const testPatternSampling = (design, Pattern, expect, models, patterns) => {
   // Load non-human measurements
   const nonHuman = nonHumanMeasurements(models)
 
@@ -112,4 +112,3 @@ const testPatternSampling = (design, Pattern, expect, models, patterns) => {
 
 }
 
-module.exports = testPatternSampling
diff --git a/tests/plugins/shared.mjs b/tests/plugins/shared.mjs
new file mode 100644
index 00000000000..d5d2b5d6c11
--- /dev/null
+++ b/tests/plugins/shared.mjs
@@ -0,0 +1,42 @@
+import freesewing from '@freesewing/core'
+import chai from 'chai'
+/*
+ * This runs unit tests for the plugin configuration
+ * It expects the following:
+ *
+ * @param object plugin: The plugin object
+ * @param object freesewing: Imported @freesewing/core
+ * @param object expect: Imported chai.expect
+ */
+export const sharedPluginTests = plugin => {
+
+  describe('Shared Plugin Tests', () => {
+    it('Should have a name property', () => {
+      chai.expect(typeof plugin.name).to.equal('string')
+      chai.expect(plugin.name.length).to.be.greaterThan(2)
+    })
+    it('Should have a version property', () => {
+      chai.expect(typeof plugin.version).to.equal('string')
+      chai.expect(plugin.version.length).to.be.greaterThan(2)
+    })
+    it('Version should be a proper semantic version', () => {
+      chai.expect(plugin.version.split('.').length).to.equal(3)
+    })
+
+    if ([
+      // These don't set their version
+      '@freesewing/plugin-versionfree-svg',
+      '@freesewing/plugin-bundle',
+    ].indexOf(plugin.name) === -1) {
+      const pattern = new freesewing.Pattern().use(plugin)
+      pattern.draft().render()
+      const version = plugin.name.split('@').pop().split('/').join(':')
+
+      it('Should set the plugin name:version attribute', () => {
+        chai.expect(pattern.svg.attributes.get(version)).to.equal(plugin.version)
+      })
+    }
+  })
+
+}
+