test: migrate from mocha to jest

.eslintrc.json

@@ -2,7 +2,7 @@
   "env": {
     "browser": true,
     "commonjs": true,
-    "mocha": true,
+    "jest": true,
     "node": true
   },
   "extends": "eslint:recommended",

.huskyrc.json

@@ -1,6 +1,6 @@
 {
   "hooks": {
     "commit-msg": "commitlint -E HUSKY_GIT_PARAMS",
-    "pre-commit": "npm run lint:dts && npm run test:coverage && lint-staged"
+    "pre-commit": "npm run lint:dts && npm run test:ci && lint-staged"
   }
 }

.travis.yml

@@ -8,11 +8,11 @@ script:
   - npx commitlint --from=HEAD~1
   - npm run lint
   - npm run lint:dts
-  - npm run test:coverage
+  - npm run test:ci
   - npm run build
   - npm run benchmark
 after_success:
-  - npx nyc report --reporter=text-lcov | npx coveralls
+  - cat coverage/lcov.info | npx coveralls
 cache:
   directories:
     - node_modules

package.json

@@ -11,11 +11,11 @@
     "lint": "eslint --ignore-path .gitignore --ignore-pattern /examples/ .",
     "lint:dts": "dtslint .",
     "lint:fix": "npm run lint -- --fix",
-    "prepublishOnly": "npm run lint && npm run lint:dts && npm test && npm run clean && npm run build",
+    "prepublishOnly": "npm run lint && npm run lint:dts && npm run test:ci && npm run clean && npm run build",
     "release": "standard-version --no-verify",
-    "test": "mocha",
-    "test:coverage": "nyc npm test",
-    "test:coverage:report": "nyc report --reporter=html"
+    "test": "jest --coverage",
+    "test:ci": "npm test -- --ci",
+    "test:watch": "npm test -- --watch"
   },
   "repository": {
     "type": "git",
@@ -49,9 +49,8 @@
     "eslint": "^7.1.0",
     "eslint-plugin-prettier": "^3.1.3",
     "husky": "^4.2.5",
+    "jest": "^26.0.1",
     "lint-staged": "^10.2.7",
-    "mocha": "^7.2.0",
-    "nyc": "^15.1.0",
     "preact": "^10.4.4",
     "prettier": "^2.0.5",
     "react": "^16",

test/__snapshots__/dom-to-react.test.js.snap

@@ -0,0 +1,84 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`DOM to React converts <textarea> correctly 1`] = `
+<textarea
+  defaultValue="foo"
+/>
+`;
+
+exports[`DOM to React converts SVG element with viewBox attribute 1`] = `
+<svg
+  id="foo"
+  viewBox="0 0 512 512"
+>
+  Inner
+</svg>
+`;
+
+exports[`DOM to React converts multiple DOM nodes to React 1`] = `
+Array [
+  <p>
+    foo
+  </p>,
+  <p>
+    bar
+  </p>,
+]
+`;
+
+exports[`DOM to React converts single DOM node to React 1`] = `
+<p>
+  foo
+</p>
+`;
+
+exports[`DOM to React does not escape <script> content 1`] = `
+<script
+  dangerouslySetInnerHTML={
+    Object {
+      "__html": "alert(1 < 2);",
+    }
+  }
+/>
+`;
+
+exports[`DOM to React does not escape <style> content 1`] = `
+<style
+  dangerouslySetInnerHTML={
+    Object {
+      "__html": "body > .foo { color: #f00; }",
+    }
+  }
+/>
+`;
+
+exports[`DOM to React does not modify attributes on custom elements 1`] = `
+<custom-button
+  class="myClass"
+  custom-attribute="value"
+/>
+`;
+
+exports[`DOM to React skips doctype and comments 1`] = `
+Array [
+  <p>
+    foo
+  </p>,
+  <p>
+    foo
+  </p>,
+]
+`;
+
+exports[`DOM to React when React <16 removes unknown attributes 1`] = `
+<custom-button
+  className="myClass"
+/>
+`;
+
+exports[`DOM to React when React >=16 preserves unknown attributes 1`] = `
+<custom-button
+  class="myClass"
+  custom-attribute="value"
+/>
+`;