diff --git a/.github/labeler.yml b/.github/labeler.yml
index f07126c96..e8da31ba5 100644
--- a/.github/labeler.yml
+++ b/.github/labeler.yml
@@ -1,68 +1,104 @@
 'Area: Bridge':
-  - 'packages/uniforms-bridge-graphql/**/*'
-  - 'packages/uniforms-bridge-json-schema/**/*'
-  - 'packages/uniforms-bridge-simple-schema-2/**/*'
-  - 'packages/uniforms-bridge-simple-schema/**/*'
-  - 'packages/uniforms-bridge-zod/**/*'
+  - changed-files:
+      - any-glob-to-any-file:
+          - packages/uniforms-bridge-graphql/**/*
+          - packages/uniforms-bridge-json-schema/**/*
+          - packages/uniforms-bridge-simple-schema-2/**/*
+          - packages/uniforms-bridge-simple-schema/**/*
+          - packages/uniforms-bridge-zod/**/*
 'Area: Core':
-  - 'packages/uniforms/**/*'
+  - changed-files:
+      - any-glob-to-any-file:
+          - packages/uniforms/**/*
 'Area: Docs':
-  - 'CODE_OF_CONDUCT.md'
-  - 'LICENSE'
-  - 'README.md'
-  - 'docs/**/*'
-  - 'reproductions/**/*'
-  - 'website/**/*'
+  - changed-files:
+      - any-glob-to-any-file:
+          - CODE_OF_CONDUCT.md
+          - LICENSE
+          - README.md
+          - docs/**/*
+          - reproductions/**/*
+          - website/**/*
 'Area: Infra':
-  - '.editorconfig'
-  - '.eslintignore'
-  - '.eslintrc.json'
-  - '.github/**/*'
-  - '.gitignore'
-  - '.lintstagedrc.js'
-  - '.prettierignore'
-  - '.prettierrc.js'
-  - '.stylelintrc'
-  - 'jest.config.js'
-  - 'lerna.json'
-  - 'package-lock.json'
-  - 'package.json'
-  - 'scripts/**/*'
-  - 'tsconfig.build.json'
-  - 'tsconfig.global.json'
-  - 'tsconfig.json'
+  - changed-files:
+      - any-glob-to-any-file:
+          - .editorconfig
+          - .eslintignore
+          - .eslintrc.json
+          - .github/**/*
+          - .gitignore
+          - .lintstagedrc.js
+          - .prettierignore
+          - .prettierrc.js
+          - .stylelintrc
+          - jest.config.js
+          - lerna.json
+          - package-lock.json
+          - package.json
+          - scripts/**/*
+          - tsconfig.build.json
+          - tsconfig.global.json
+          - tsconfig.json
 'Area: Theme':
-  - 'packages/uniforms-antd/**/*'
-  - 'packages/uniforms-bootstrap3/**/*'
-  - 'packages/uniforms-bootstrap4/**/*'
-  - 'packages/uniforms-bootstrap5/**/*'
-  - 'packages/uniforms-material/**/*'
-  - 'packages/uniforms-mui/**/*'
-  - 'packages/uniforms-semantic/**/*'
-  - 'packages/uniforms-unstyled/**/*'
+  - changed-files:
+      - any-glob-to-any-file:
+          - packages/uniforms-antd/**/*
+          - packages/uniforms-bootstrap3/**/*
+          - packages/uniforms-bootstrap4/**/*
+          - packages/uniforms-bootstrap5/**/*
+          - packages/uniforms-material/**/*
+          - packages/uniforms-mui/**/*
+          - packages/uniforms-semantic/**/*
+          - packages/uniforms-unstyled/**/*
 'Bridge: GraphQL':
-  - 'packages/uniforms-bridge-graphql/**/*'
+  - changed-files:
+      - any-glob-to-any-file:
+          - packages/uniforms-bridge-graphql/**/*
 'Bridge: JSON Schema':
-  - 'packages/uniforms-bridge-json-schema/**/*'
+  - changed-files:
+      - any-glob-to-any-file:
+          - packages/uniforms-bridge-json-schema/**/*
 'Bridge: SimpleSchema':
-  - 'packages/uniforms-bridge-simple-schema/**/*'
+  - changed-files:
+      - any-glob-to-any-file:
+          - packages/uniforms-bridge-simple-schema/**/*
 'Bridge: SimpleSchema (v2)':
-  - 'packages/uniforms-bridge-simple-schema-2/**/*'
+  - changed-files:
+      - any-glob-to-any-file:
+          - packages/uniforms-bridge-simple-schema-2/**/*
 'Bridge: Zod':
-  - 'packages/uniforms-bridge-zod/**/*'
+  - changed-files:
+      - any-glob-to-any-file:
+          - packages/uniforms-bridge-zod/**/*
 'Theme: AntD':
-  - 'packages/uniforms-antd/**/*'
+  - changed-files:
+      - any-glob-to-any-file:
+          - packages/uniforms-antd/**/*
 'Theme: Bootstrap 3':
-  - 'packages/uniforms-bootstrap3/**/*'
+  - changed-files:
+      - any-glob-to-any-file:
+          - packages/uniforms-bootstrap3/**/*
 'Theme: Bootstrap 4':
-  - 'packages/uniforms-bootstrap4/**/*'
+  - changed-files:
+      - any-glob-to-any-file:
+          - packages/uniforms-bootstrap4/**/*
 'Theme: Bootstrap 5':
-  - 'packages/uniforms-bootstrap5/**/*'
+  - changed-files:
+      - any-glob-to-any-file:
+          - packages/uniforms-bootstrap5/**/*
 'Theme: Material-UI':
-  - 'packages/uniforms-material/**/*'
+  - changed-files:
+      - any-glob-to-any-file:
+          - packages/uniforms-material/**/*
 'Theme: MUI':
-  - 'packages/uniforms-mui/**/*'
+  - changed-files:
+      - any-glob-to-any-file:
+          - packages/uniforms-mui/**/*
 'Theme: Semantic UI':
-  - 'packages/uniforms-semantic/**/*'
+  - changed-files:
+      - any-glob-to-any-file:
+          - packages/uniforms-semantic/**/*
 'Theme: Unstyled':
-  - 'packages/uniforms-unstyled/**/*'
+  - changed-files:
+      - any-glob-to-any-file:
+          - packages/uniforms-unstyled/**/*
diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index d5ea7fe2f..0940bf0e4 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -13,9 +13,9 @@ jobs:
         node-version: [14.x, 16.x, 18.x, 20.x]
     steps:
       - name: Checkout
-        uses: actions/checkout@v3.3.0
+        uses: actions/checkout@v4.1.1
       - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v3.6.0
+        uses: actions/setup-node@v4.0.2
         with:
           cache: npm
           node-version: ${{ matrix.node-version }}
@@ -30,14 +30,16 @@ jobs:
       - name: Test
         run: npm run coverage -- --no-cache --runInBand
       - name: Report coverage
-        uses: codecov/codecov-action@v3.1.1
+        uses: codecov/codecov-action@v4.3.0
         with:
           fail_ci_if_error: true
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
       - name: Build docs
         run: npm --prefix website run build
         if: github.event_name == 'push' && github.ref == 'refs/heads/master' && matrix.node-version == '20.x'
       - name: Deploy docs
-        uses: peaceiris/actions-gh-pages@v3.9.2
+        uses: peaceiris/actions-gh-pages@v4.0.0
         with:
           allow_empty_commit: true
           cname: uniforms.tools
diff --git a/.github/workflows/labeler.yml b/.github/workflows/labeler.yml
index 80ef3a236..dcf620738 100644
--- a/.github/workflows/labeler.yml
+++ b/.github/workflows/labeler.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Update labels
-        uses: actions/labeler@v4.0.3
+        uses: actions/labeler@v5.0.0
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
           sync-labels: true
diff --git a/packages/uniforms-antd/__tests__/SelectField.tsx b/packages/uniforms-antd/__tests__/SelectField.tsx
index c95de4fb8..51064b090 100644
--- a/packages/uniforms-antd/__tests__/SelectField.tsx
+++ b/packages/uniforms-antd/__tests__/SelectField.tsx
@@ -1,4 +1,3 @@
-import Radio from 'antd/lib/radio';
 import Select from 'antd/lib/select';
 import React from 'react';
 import { SelectField } from 'uniforms-antd';
@@ -6,187 +5,6 @@ import { SelectField } from 'uniforms-antd';
 import createContext from './_createContext';
 import mount from './_mount';
 
-test('<SelectField> - renders a select', () => {
-  const element = <SelectField name="x" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find(Select)).toHaveLength(1);
-});
-
-test('<SelectField> - renders a select with correct disabled state', () => {
-  const element = <SelectField name="x" disabled />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find(Select)).toHaveLength(1);
-  expect(wrapper.find(Select).prop('disabled')).toBe(true);
-});
-
-test('<SelectField> - renders a select with correct readOnly state', () => {
-  const onChange = jest.fn();
-
-  const element = <SelectField name="x" readOnly />;
-  const wrapper = mount(
-    element,
-    createContext(
-      { x: { type: String, allowedValues: ['a', 'b'] } },
-      { onChange },
-    ),
-  );
-
-  expect(wrapper.find(Select)).toHaveLength(1);
-  // FIXME: Provide a valid option.
-  expect(wrapper.find(Select).prop('onChange')!('b', null as any)).toBeFalsy();
-  expect(onChange).not.toHaveBeenCalled();
-});
-
-test('<SelectField> - renders a select with correct id (inherited)', () => {
-  const element = <SelectField name="x" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find(Select)).toHaveLength(1);
-  expect(wrapper.find(Select).prop('id')).toBeTruthy();
-});
-
-test('<SelectField> - renders a select with correct id (specified)', () => {
-  const element = <SelectField name="x" id="y" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find(Select)).toHaveLength(1);
-  expect(wrapper.find(Select).prop('id')).toBe('y');
-});
-
-test('<SelectField> - renders a select with correct name', () => {
-  const element = <SelectField name="x" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find(Select)).toHaveLength(1);
-  expect(wrapper.find(Select).prop('name')).toBe('x');
-});
-
-test('<SelectField> - renders a select with correct options', () => {
-  const element = <SelectField name="x" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find(Select)).toHaveLength(1);
-  expect(wrapper.find(Select).prop('children')).toHaveLength(2);
-  // @ts-expect-error Check children type.
-  expect(wrapper.find(Select).prop('children')[0].props.value).toBe('a');
-  // @ts-expect-error Check children type.
-  expect(wrapper.find(Select).prop('children')[0].props.children).toBe('a');
-  // @ts-expect-error Check children type.
-  expect(wrapper.find(Select).prop('children')[1].props.value).toBe('b');
-  // @ts-expect-error Check children type.
-  expect(wrapper.find(Select).prop('children')[1].props.children).toBe('b');
-});
-
-test('<SelectField> - renders a select with correct options (transform)', () => {
-  const element = (
-    <SelectField
-      name="x"
-      options={[
-        { label: 'A', value: 'a' },
-        { label: 'B', value: 'b' },
-      ]}
-    />
-  );
-  const wrapper = mount(element, createContext({ x: { type: String } }));
-
-  expect(wrapper.find(Select)).toHaveLength(1);
-  expect(wrapper.find(Select).prop('children')).toHaveLength(2);
-  // @ts-expect-error Check children type.
-  expect(wrapper.find(Select).prop('children')[0].props.value).toBe('a');
-  // @ts-expect-error Check children type.
-  expect(wrapper.find(Select).prop('children')[0].props.children).toBe('A');
-  // @ts-expect-error Check children type.
-  expect(wrapper.find(Select).prop('children')[1].props.value).toBe('b');
-  // @ts-expect-error Check children type.
-  expect(wrapper.find(Select).prop('children')[1].props.children).toBe('B');
-});
-
-test('<SelectField> - renders a select with correct placeholder (implicit)', () => {
-  const element = <SelectField name="x" placeholder="y" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find(Select)).toHaveLength(1);
-  expect(wrapper.find(Select).prop('placeholder')).toBe('y');
-  expect(wrapper.find(Select).prop('value')).toBe(undefined);
-});
-
-test('<SelectField> - renders a select with correct value (default)', () => {
-  const element = <SelectField name="x" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find(Select)).toHaveLength(1);
-  expect(wrapper.find(Select).prop('value')).toBe(undefined);
-});
-
-test('<SelectField> - renders a select with correct value (model)', () => {
-  const element = <SelectField name="x" />;
-  const wrapper = mount(
-    element,
-    createContext(
-      { x: { type: String, allowedValues: ['a', 'b'] } },
-      { model: { x: 'b' } },
-    ),
-  );
-
-  expect(wrapper.find(Select)).toHaveLength(1);
-  expect(wrapper.find(Select).prop('value')).toBe('b');
-});
-
-test('<SelectField> - renders a select with correct value (specified)', () => {
-  const element = <SelectField name="x" value="b" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find(Select)).toHaveLength(1);
-  expect(wrapper.find(Select).prop('value')).toBe('b');
-});
-
-test('<SelectField> - renders a select which correctly reacts on change', () => {
-  const onChange = jest.fn();
-
-  const element = <SelectField name="x" />;
-  const wrapper = mount(
-    element,
-    createContext(
-      { x: { type: String, allowedValues: ['a', 'b'] } },
-      { onChange },
-    ),
-  );
-
-  expect(wrapper.find(Select)).toHaveLength(1);
-  // FIXME: Provide a valid option.
-  expect(wrapper.find(Select).prop('onChange')!('b', null as any)).toBeFalsy();
-  expect(onChange).toHaveBeenLastCalledWith('x', 'b');
-});
-
 test('<SelectField> - renders a select which correctly reacts on change (array)', () => {
   const onChange = jest.fn();
 
@@ -224,362 +42,3 @@ test('<SelectField> - renders a select (undefined values)', () => {
   expect(wrapper.find(Select).prop('value')).not.toContain(undefined);
   expect(wrapper.find(Select).prop('value')).toContain('a');
 });
-
-test('<SelectField> - renders a select which correctly reacts on change (empty)', () => {
-  const onChange = jest.fn();
-
-  const element = <SelectField name="x" />;
-  const wrapper = mount(
-    element,
-    createContext(
-      { x: { type: String, allowedValues: ['a', 'b'] } },
-      { onChange },
-    ),
-  );
-
-  expect(wrapper.find(Select)).toHaveLength(1);
-  // FIXME: Provide a valid option.
-  expect(wrapper.find(Select).prop('onChange')!('', null as any)).toBeFalsy();
-  expect(onChange).toHaveBeenLastCalledWith('x', '');
-});
-
-test('<SelectField> - renders a select which correctly reacts on change (same value)', () => {
-  const onChange = jest.fn();
-
-  const element = <SelectField name="x" />;
-  const wrapper = mount(
-    element,
-    createContext(
-      { x: { type: String, allowedValues: ['a', 'b'] } },
-      { model: { x: 'b' }, onChange },
-    ),
-  );
-
-  expect(wrapper.find(Select)).toHaveLength(1);
-  // FIXME: Provide a valid option.
-  expect(wrapper.find(Select).prop('onChange')!('b', null as any)).toBeFalsy();
-  expect(onChange).toHaveBeenLastCalledWith('x', 'b');
-});
-
-test('<SelectField> - renders a wrapper with unknown props', () => {
-  const element = <SelectField name="x" data-x="x" data-y="y" data-z="z" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find(Select).prop('data-x')).toBe('x');
-  expect(wrapper.find(Select).prop('data-y')).toBe('y');
-  expect(wrapper.find(Select).prop('data-z')).toBe('z');
-});
-
-test('<SelectField> - works with special characters', () => {
-  mount(
-    <SelectField name="x" />,
-    createContext({ x: { type: String, allowedValues: ['ă', 'ș'] } }),
-  );
-});
-
-test('<SelectField> - disabled items (options)', () => {
-  const element = (
-    <SelectField
-      name="x"
-      options={[
-        { key: 'k1', label: 'A', value: 'a', disabled: true },
-        { key: 'k2', label: 'B', value: 'b', disabled: false },
-      ]}
-    />
-  );
-  const wrapper = mount(
-    element,
-    createContext({
-      x: { type: Array },
-      'x.$': { type: String },
-    }),
-  );
-
-  // FIXME: The `children` prop is not indexable on its own.
-  const children: any = wrapper.find(Select).prop('children');
-  expect(children).toHaveLength(2);
-  expect(children[0].props.disabled).toBe(true);
-  expect(children[1].props.disabled).toBe(false);
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes', () => {
-  const element = <SelectField checkboxes name="x" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find(Radio)).toHaveLength(2);
-  expect(wrapper.find(Radio).at(0).prop('value')).toBe('a');
-  expect(wrapper.find(Radio).at(1).prop('value')).toBe('b');
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes with correct disabled state', () => {
-  const element = <SelectField checkboxes name="x" disabled />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find(Radio.Group)).toHaveLength(1);
-  expect(wrapper.find(Radio.Group).prop('disabled')).toBe(true);
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes with correct readOnly state', () => {
-  const onChange = jest.fn();
-
-  const element = <SelectField checkboxes name="x" readOnly />;
-  const wrapper = mount(
-    element,
-    createContext(
-      { x: { type: String, allowedValues: ['a', 'b'] } },
-      { onChange },
-    ),
-  );
-
-  expect(wrapper.find('input')).toHaveLength(2);
-  expect(wrapper.find('input').at(1).simulate('change')).toBeTruthy();
-  expect(onChange).not.toHaveBeenCalled();
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes with correct id (inherited)', () => {
-  const element = <SelectField checkboxes name="x" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find(Radio.Group)).toHaveLength(1);
-  expect(wrapper.find(Radio.Group).prop('id')).toBeTruthy();
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes with correct id (specified)', () => {
-  const element = <SelectField checkboxes name="x" id="y" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find(Radio.Group)).toHaveLength(1);
-  expect(wrapper.find(Radio.Group).prop('id')).toBe('y');
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes with correct name', () => {
-  const element = <SelectField checkboxes name="x" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find(Radio.Group)).toHaveLength(1);
-  expect(wrapper.find(Radio.Group).prop('name')).toBe('x');
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes with correct options', () => {
-  const element = <SelectField checkboxes name="x" />;
-  const wrapper = mount(
-    element,
-    createContext({
-      x: { type: String, allowedValues: ['a', 'b'], label: '' },
-    }),
-  );
-
-  expect(wrapper.find('label')).toHaveLength(2);
-  expect(wrapper.find('label').at(0).text()).toBe('a');
-  expect(wrapper.find('label').at(1).text()).toBe('b');
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes with correct options (transform)', () => {
-  const element = (
-    <SelectField
-      checkboxes
-      name="x"
-      options={[
-        { label: 'A', value: 'a' },
-        { label: 'B', value: 'b' },
-      ]}
-    />
-  );
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, label: '' } }),
-  );
-
-  expect(wrapper.find('label')).toHaveLength(2);
-  expect(wrapper.find('label').at(0).text()).toBe('A');
-  expect(wrapper.find('label').at(1).text()).toBe('B');
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes with correct value (default)', () => {
-  const element = <SelectField checkboxes name="x" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find('input')).toHaveLength(2);
-  expect(wrapper.find('input').at(0).prop('checked')).toBe(false);
-  expect(wrapper.find('input').at(1).prop('checked')).toBe(false);
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes with correct value (model)', () => {
-  const element = <SelectField checkboxes name="x" />;
-  const wrapper = mount(
-    element,
-    createContext(
-      { x: { type: String, allowedValues: ['a', 'b'] } },
-      { model: { x: 'b' } },
-    ),
-  );
-
-  expect(wrapper.find('input')).toHaveLength(2);
-  expect(wrapper.find('input').at(0).prop('checked')).toBe(false);
-  expect(wrapper.find('input').at(1).prop('checked')).toBe(true);
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes with correct value (specified)', () => {
-  const element = <SelectField checkboxes name="x" value="b" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find('input')).toHaveLength(2);
-  expect(wrapper.find('input').at(0).prop('checked')).toBe(false);
-  expect(wrapper.find('input').at(1).prop('checked')).toBe(true);
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes which correctly reacts on change', () => {
-  const onChange = jest.fn();
-
-  const element = <SelectField checkboxes name="x" />;
-  const wrapper = mount(
-    element,
-    createContext(
-      { x: { type: String, allowedValues: ['a', 'b'] } },
-      { onChange },
-    ),
-  );
-
-  expect(wrapper.find('input')).toHaveLength(2);
-  expect(wrapper.find('input').at(1).simulate('change')).toBeTruthy();
-  expect(onChange).toHaveBeenLastCalledWith('x', 'b');
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes which correctly reacts on change (array check)', () => {
-  const onChange = jest.fn();
-
-  const element = <SelectField checkboxes name="x" />;
-  const wrapper = mount(
-    element,
-    createContext(
-      {
-        x: { type: Array },
-        'x.$': { type: String, allowedValues: ['a', 'b'] },
-      },
-      { onChange },
-    ),
-  );
-
-  expect(wrapper.find('input')).toHaveLength(2);
-  expect(wrapper.find('input').at(1).simulate('change')).toBeTruthy();
-  expect(onChange).toHaveBeenLastCalledWith('x', ['b']);
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes which correctly reacts on change (array uncheck)', () => {
-  const onChange = jest.fn();
-
-  const element = <SelectField checkboxes name="x" value={['b']} />;
-  const wrapper = mount(
-    element,
-    createContext(
-      {
-        x: { type: Array },
-        'x.$': { type: String, allowedValues: ['a', 'b'] },
-      },
-      { onChange },
-    ),
-  );
-
-  expect(wrapper.find('input')).toHaveLength(2);
-  expect(wrapper.find('input').at(1).simulate('change')).toBeTruthy();
-  expect(onChange).toHaveBeenLastCalledWith('x', []);
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes which correctly reacts on change (same value)', () => {
-  const onChange = jest.fn();
-
-  const element = <SelectField checkboxes name="x" />;
-  const wrapper = mount(
-    element,
-    createContext(
-      { x: { type: String, allowedValues: ['a', 'b'] } },
-      { model: { x: 'b' }, onChange },
-    ),
-  );
-
-  expect(wrapper.find('input')).toHaveLength(2);
-  expect(wrapper.find('input').at(0).simulate('change')).toBeTruthy();
-  expect(onChange).toHaveBeenLastCalledWith('x', 'a');
-});
-
-test('<SelectField checkboxes> - renders a label', () => {
-  const element = <SelectField checkboxes name="x" label="y" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find('label')).toHaveLength(3);
-  expect(wrapper.find('label').at(0).text()).toBe('y');
-});
-
-test('<SelectField checkboxes> - renders a wrapper with unknown props', () => {
-  const element = (
-    <SelectField checkboxes name="x" data-x="x" data-y="y" data-z="z" />
-  );
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find(Radio.Group).prop('data-x')).toBe('x');
-  expect(wrapper.find(Radio.Group).prop('data-y')).toBe('y');
-  expect(wrapper.find(Radio.Group).prop('data-z')).toBe('z');
-});
-
-test('<SelectField checkboxes> - works with special characters', () => {
-  mount(
-    <SelectField checkboxes name="x" />,
-    createContext({ x: { type: String, allowedValues: ['ă', 'ș'] } }),
-  );
-});
-
-test('<SelectField checkboxes> - disabled items (checkboxes)', () => {
-  const allowedValues = ['a', 'b'];
-
-  const element = (
-    <SelectField
-      checkboxes
-      name="x"
-      options={[
-        { key: 'k1', label: 'A', value: 'a', disabled: true },
-        { key: 'k2', label: 'B', value: 'b', disabled: false },
-      ]}
-    />
-  );
-  const wrapper = mount(
-    element,
-    createContext({
-      x: { type: Array },
-      'x.$': { type: String, allowedValues },
-    }),
-  );
-
-  expect(wrapper.find('input')).toHaveLength(2);
-  expect(wrapper.find('input').at(0).prop('disabled')).toBe(true);
-  expect(wrapper.find('input').at(1).prop('disabled')).toBe(false);
-});
diff --git a/packages/uniforms-bootstrap3/__tests__/_createContext.ts b/packages/uniforms-bootstrap3/__tests__/_createContext.ts
deleted file mode 100644
index e687bc994..000000000
--- a/packages/uniforms-bootstrap3/__tests__/_createContext.ts
+++ /dev/null
@@ -1,38 +0,0 @@
-import { SimpleSchemaDefinition } from 'simpl-schema';
-import { Context, UnknownObject, randomIds, ChangedMap } from 'uniforms';
-
-import createSchema from './_createSchema';
-
-const randomId = randomIds();
-
-export default function createContext<Model extends UnknownObject>(
-  schema?: SimpleSchemaDefinition,
-  context?: Partial<Context<Model>>,
-  model = {} as Model,
-): { context: Context<Model> } {
-  return {
-    context: {
-      changed: false,
-      changedMap: {} as ChangedMap<Model>,
-      error: null,
-      model,
-      name: [],
-      onChange() {},
-      onSubmit() {},
-      randomId,
-      submitted: false,
-      submitting: false,
-      validating: false,
-      ...context,
-      schema: createSchema(schema),
-      state: {
-        disabled: false,
-        readOnly: false,
-        showInlineError: false,
-        ...context?.state,
-      },
-      // @ts-expect-error We don't have a true ref in tests.
-      formRef: null,
-    },
-  };
-}
diff --git a/packages/uniforms-bootstrap3/__tests__/_createSchema.ts b/packages/uniforms-bootstrap3/__tests__/_createSchema.ts
deleted file mode 100644
index 6ac1ef72b..000000000
--- a/packages/uniforms-bootstrap3/__tests__/_createSchema.ts
+++ /dev/null
@@ -1,6 +0,0 @@
-import SimpleSchema, { SimpleSchemaDefinition } from 'simpl-schema';
-import { SimpleSchema2Bridge } from 'uniforms-bridge-simple-schema-2';
-
-export default function createSchema(schema: SimpleSchemaDefinition = {}) {
-  return new SimpleSchema2Bridge({ schema: new SimpleSchema(schema) });
-}
diff --git a/packages/uniforms-bootstrap4/__tests__/_createContext.ts b/packages/uniforms-bootstrap4/__tests__/_createContext.ts
deleted file mode 100644
index e687bc994..000000000
--- a/packages/uniforms-bootstrap4/__tests__/_createContext.ts
+++ /dev/null
@@ -1,38 +0,0 @@
-import { SimpleSchemaDefinition } from 'simpl-schema';
-import { Context, UnknownObject, randomIds, ChangedMap } from 'uniforms';
-
-import createSchema from './_createSchema';
-
-const randomId = randomIds();
-
-export default function createContext<Model extends UnknownObject>(
-  schema?: SimpleSchemaDefinition,
-  context?: Partial<Context<Model>>,
-  model = {} as Model,
-): { context: Context<Model> } {
-  return {
-    context: {
-      changed: false,
-      changedMap: {} as ChangedMap<Model>,
-      error: null,
-      model,
-      name: [],
-      onChange() {},
-      onSubmit() {},
-      randomId,
-      submitted: false,
-      submitting: false,
-      validating: false,
-      ...context,
-      schema: createSchema(schema),
-      state: {
-        disabled: false,
-        readOnly: false,
-        showInlineError: false,
-        ...context?.state,
-      },
-      // @ts-expect-error We don't have a true ref in tests.
-      formRef: null,
-    },
-  };
-}
diff --git a/packages/uniforms-bootstrap4/__tests__/_createSchema.ts b/packages/uniforms-bootstrap4/__tests__/_createSchema.ts
deleted file mode 100644
index 6ac1ef72b..000000000
--- a/packages/uniforms-bootstrap4/__tests__/_createSchema.ts
+++ /dev/null
@@ -1,6 +0,0 @@
-import SimpleSchema, { SimpleSchemaDefinition } from 'simpl-schema';
-import { SimpleSchema2Bridge } from 'uniforms-bridge-simple-schema-2';
-
-export default function createSchema(schema: SimpleSchemaDefinition = {}) {
-  return new SimpleSchema2Bridge({ schema: new SimpleSchema(schema) });
-}
diff --git a/packages/uniforms-bootstrap5/__tests__/_createContext.ts b/packages/uniforms-bootstrap5/__tests__/_createContext.ts
deleted file mode 100644
index e687bc994..000000000
--- a/packages/uniforms-bootstrap5/__tests__/_createContext.ts
+++ /dev/null
@@ -1,38 +0,0 @@
-import { SimpleSchemaDefinition } from 'simpl-schema';
-import { Context, UnknownObject, randomIds, ChangedMap } from 'uniforms';
-
-import createSchema from './_createSchema';
-
-const randomId = randomIds();
-
-export default function createContext<Model extends UnknownObject>(
-  schema?: SimpleSchemaDefinition,
-  context?: Partial<Context<Model>>,
-  model = {} as Model,
-): { context: Context<Model> } {
-  return {
-    context: {
-      changed: false,
-      changedMap: {} as ChangedMap<Model>,
-      error: null,
-      model,
-      name: [],
-      onChange() {},
-      onSubmit() {},
-      randomId,
-      submitted: false,
-      submitting: false,
-      validating: false,
-      ...context,
-      schema: createSchema(schema),
-      state: {
-        disabled: false,
-        readOnly: false,
-        showInlineError: false,
-        ...context?.state,
-      },
-      // @ts-expect-error We don't have a true ref in tests.
-      formRef: null,
-    },
-  };
-}
diff --git a/packages/uniforms-bootstrap5/__tests__/_createSchema.ts b/packages/uniforms-bootstrap5/__tests__/_createSchema.ts
deleted file mode 100644
index 6ac1ef72b..000000000
--- a/packages/uniforms-bootstrap5/__tests__/_createSchema.ts
+++ /dev/null
@@ -1,6 +0,0 @@
-import SimpleSchema, { SimpleSchemaDefinition } from 'simpl-schema';
-import { SimpleSchema2Bridge } from 'uniforms-bridge-simple-schema-2';
-
-export default function createSchema(schema: SimpleSchemaDefinition = {}) {
-  return new SimpleSchema2Bridge({ schema: new SimpleSchema(schema) });
-}
diff --git a/packages/uniforms-material/__tests__/NestField.tsx b/packages/uniforms-material/__tests__/NestField.tsx
index 0d6d107e5..468c11de2 100644
--- a/packages/uniforms-material/__tests__/NestField.tsx
+++ b/packages/uniforms-material/__tests__/NestField.tsx
@@ -3,7 +3,7 @@ import FormLabel from '@material-ui/core/FormLabel';
 import createMuiTheme from '@material-ui/core/styles/createMuiTheme';
 import ThemeProvider from '@material-ui/styles/ThemeProvider/ThemeProvider';
 import React from 'react';
-import { AutoField, NestField } from 'uniforms-material';
+import { NestField } from 'uniforms-material';
 import { render } from 'uniforms/__suites__';
 
 import createContext from './_createContext';
@@ -68,22 +68,6 @@ describe('@RTL - NestField tests', () => {
   });
 });
 
-test('<NestField> - renders an <AutoField> for each field', () => {
-  const element = <NestField name="x" />;
-  const wrapper = mount(
-    element,
-    createContext({
-      x: { type: Object },
-      'x.a': { type: String },
-      'x.b': { type: Number },
-    }),
-  );
-
-  expect(wrapper.find(AutoField)).toHaveLength(2);
-  expect(wrapper.find(AutoField).at(0).prop('name')).toBe('a');
-  expect(wrapper.find(AutoField).at(1).prop('name')).toBe('b');
-});
-
 test('<NestField> - renders a Subheader', () => {
   const element = <NestField name="x" label="y" />;
   const wrapper = mount(
diff --git a/packages/uniforms-semantic/__tests__/SelectField.tsx b/packages/uniforms-semantic/__tests__/SelectField.tsx
index 0ed954c16..4b4a2bd01 100644
--- a/packages/uniforms-semantic/__tests__/SelectField.tsx
+++ b/packages/uniforms-semantic/__tests__/SelectField.tsx
@@ -4,266 +4,6 @@ import { SelectField } from 'uniforms-semantic';
 import createContext from './_createContext';
 import mount from './_mount';
 
-test('<SelectField> - renders a select', () => {
-  const element = <SelectField name="x" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find('select')).toHaveLength(1);
-});
-
-test('<SelectField> - renders a select with correct disabled state', () => {
-  const element = <SelectField name="x" disabled />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find('select')).toHaveLength(1);
-  expect(wrapper.find('select').prop('disabled')).toBe(true);
-});
-
-test('<SelectField> - renders a select with correct readOnly state', () => {
-  const onChange = jest.fn();
-
-  const element = <SelectField name="x" readOnly />;
-  const wrapper = mount(
-    element,
-    createContext(
-      { x: { type: String, allowedValues: ['a', 'b'] } },
-      { onChange },
-    ),
-  );
-
-  expect(wrapper.find('select')).toHaveLength(1);
-  expect(
-    wrapper.find('select').simulate('change', { target: { value: 'b' } }),
-  ).toBeTruthy();
-  expect(onChange).not.toHaveBeenCalled();
-});
-
-test('<SelectField> - renders a select with correct id (inherited)', () => {
-  const element = <SelectField name="x" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find('select')).toHaveLength(1);
-  expect(wrapper.find('select').prop('id')).toBeTruthy();
-});
-
-test('<SelectField> - renders a select with correct id (specified)', () => {
-  const element = <SelectField name="x" id="y" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find('select')).toHaveLength(1);
-  expect(wrapper.find('select').prop('id')).toBe('y');
-});
-
-test('<SelectField> - renders a select with correct name', () => {
-  const element = <SelectField name="x" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find('select')).toHaveLength(1);
-  expect(wrapper.find('select').prop('name')).toBe('x');
-});
-
-test('<SelectField> - renders a select with correct options', () => {
-  const element = <SelectField name="x" />;
-  const wrapper = mount(
-    element,
-    createContext({
-      x: { type: String, allowedValues: ['a', 'b'], label: '' },
-    }),
-  );
-
-  expect(wrapper.find('select')).toHaveLength(1);
-  expect(wrapper.find('option')).toHaveLength(3);
-  [
-    ['', ''],
-    ['a', 'a'],
-    ['b', 'b'],
-  ].forEach(([value, text], index) => {
-    const option = wrapper.find('option').at(index);
-    expect(option.prop('value')).toBe(value);
-    expect(option.text()).toBe(text);
-  });
-});
-
-test('<SelectField> - renders a select with correct options (transform)', () => {
-  const element = (
-    <SelectField
-      name="x"
-      options={[
-        { label: 'A', value: 'a' },
-        { label: 'B', value: 'b' },
-      ]}
-    />
-  );
-  const wrapper = mount(
-    element,
-    createContext({
-      x: { type: String, allowedValues: ['a', 'b'], label: '' },
-    }),
-  );
-
-  expect(wrapper.find('select')).toHaveLength(1);
-  expect(wrapper.find('option')).toHaveLength(3);
-  [
-    ['', ''],
-    ['a', 'A'],
-    ['b', 'B'],
-  ].forEach(([value, text], index) => {
-    const option = wrapper.find('option').at(index);
-    expect(option.prop('value')).toBe(value);
-    expect(option.text()).toBe(text);
-  });
-});
-
-test('<SelectField> - renders a select with correct placeholder (fallback)', () => {
-  const element = <SelectField name="x" label="y" placeholder="" />;
-  const wrapper = mount(
-    element,
-    createContext({
-      x: { type: String, allowedValues: ['a', 'b'], optional: true },
-    }),
-  );
-
-  expect(wrapper.find('select')).toHaveLength(1);
-  expect(wrapper.find('option')).toHaveLength(3);
-  [
-    ['', 'y'],
-    ['a', 'a'],
-    ['b', 'b'],
-  ].forEach(([value, text], index) => {
-    const option = wrapper.find('option').at(index);
-    expect(option.prop('value')).toBe(value);
-    expect(option.text()).toBe(text);
-  });
-});
-
-test('<SelectField> - renders a select with correct placeholder (implicit)', () => {
-  const element = <SelectField name="x" placeholder="y" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find('select')).toHaveLength(1);
-  expect(wrapper.find('option')).toHaveLength(3);
-  [
-    ['', 'y'],
-    ['a', 'a'],
-    ['b', 'b'],
-  ].forEach(([value, text], index) => {
-    const option = wrapper.find('option').at(index);
-    expect(option.prop('value')).toBe(value);
-    expect(option.text()).toBe(text);
-  });
-});
-
-test('<SelectField> - renders a select with correct value (default)', () => {
-  const element = <SelectField name="x" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find('select')).toHaveLength(1);
-  expect(wrapper.find('select').prop('value')).toBe('');
-});
-
-test('<SelectField> - renders a select with correct value (model)', () => {
-  const element = <SelectField name="x" />;
-  const wrapper = mount(
-    element,
-    createContext(
-      { x: { type: String, allowedValues: ['a', 'b'] } },
-      { model: { x: 'b' } },
-    ),
-  );
-
-  expect(wrapper.find('select')).toHaveLength(1);
-  expect(wrapper.find('select').prop('value')).toBe('b');
-});
-
-test('<SelectField> - renders a select with correct value (specified)', () => {
-  const element = <SelectField name="x" value="b" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find('select')).toHaveLength(1);
-  expect(wrapper.find('select').prop('value')).toBe('b');
-});
-
-test('<SelectField> - renders a select which correctly reacts on change', () => {
-  const onChange = jest.fn();
-
-  const element = <SelectField name="x" />;
-  const wrapper = mount(
-    element,
-    createContext(
-      { x: { type: String, allowedValues: ['a', 'b'] } },
-      { onChange },
-    ),
-  );
-
-  expect(wrapper.find('select')).toHaveLength(1);
-  expect(
-    wrapper.find('select').simulate('change', { target: { value: 'b' } }),
-  ).toBeTruthy();
-  expect(onChange).toHaveBeenLastCalledWith('x', 'b');
-});
-
-test('<SelectField> - renders a select which correctly reacts on change (empty)', () => {
-  const onChange = jest.fn();
-
-  const element = <SelectField name="x" />;
-  const wrapper = mount(
-    element,
-    createContext(
-      { x: { type: String, allowedValues: ['a', 'b'] } },
-      { onChange },
-    ),
-  );
-
-  expect(wrapper.find('select')).toHaveLength(1);
-  expect(
-    wrapper.find('select').simulate('change', { target: { value: '' } }),
-  ).toBeTruthy();
-  expect(onChange).toHaveBeenLastCalledWith('x', undefined);
-});
-
-test('<SelectField> - renders a select which correctly reacts on change (same value)', () => {
-  const onChange = jest.fn();
-
-  const element = <SelectField name="x" />;
-  const wrapper = mount(
-    element,
-    createContext(
-      { x: { type: String, allowedValues: ['a', 'b'] } },
-      { model: { x: 'b' }, onChange },
-    ),
-  );
-
-  expect(wrapper.find('select')).toHaveLength(1);
-  expect(
-    wrapper.find('select').simulate('change', { target: { value: 'b' } }),
-  ).toBeTruthy();
-  expect(onChange).toHaveBeenLastCalledWith('x', 'b');
-});
-
 test('<SelectField> - renders a label', () => {
   const element = <SelectField name="x" label="y" />;
   const wrapper = mount(
@@ -278,25 +18,6 @@ test('<SelectField> - renders a label', () => {
   );
 });
 
-test('<SelectField> - renders a wrapper with unknown props', () => {
-  const element = <SelectField name="x" data-x="x" data-y="y" data-z="z" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find('div').at(0).prop('data-x')).toBe('x');
-  expect(wrapper.find('div').at(0).prop('data-y')).toBe('y');
-  expect(wrapper.find('div').at(0).prop('data-z')).toBe('z');
-});
-
-test('<SelectField> - works with special characters', () => {
-  mount(
-    <SelectField name="x" />,
-    createContext({ x: { type: String, allowedValues: ['ă', 'ș'] } }),
-  );
-});
-
 test('<SelectField> - disabled items (options) based on predicate', () => {
   const element = (
     <SelectField
@@ -314,51 +35,6 @@ test('<SelectField> - disabled items (options) based on predicate', () => {
   expect(wrapper.find('option[value="b"]').at(0).prop('disabled')).toBe(false);
 });
 
-test('<SelectField> - renders a select with correct value (default)', () => {
-  const element = <SelectField name="x" />;
-  const wrapper = mount(
-    element,
-    createContext({
-      x: { type: Array },
-      'x.$': { type: String, allowedValues: ['a', 'b'] },
-    }),
-  );
-
-  expect(wrapper.find('select')).toHaveLength(1);
-  expect(wrapper.find('select').prop('value')).toStrictEqual([]);
-});
-
-test('<SelectField> - renders a select with correct value (model)', () => {
-  const element = <SelectField name="x" />;
-  const wrapper = mount(
-    element,
-    createContext(
-      {
-        x: { type: Array },
-        'x.$': { type: String, allowedValues: ['a', 'b'] },
-      },
-      { model: { x: ['b'] } },
-    ),
-  );
-
-  expect(wrapper.find('select')).toHaveLength(1);
-  expect(wrapper.find('select').prop('value')).toStrictEqual(['b']);
-});
-
-test('<SelectField> - renders a select with correct value (specified)', () => {
-  const element = <SelectField name="x" value={['b']} />;
-  const wrapper = mount(
-    element,
-    createContext({
-      x: { type: Array },
-      'x.$': { type: String, allowedValues: ['a', 'b'] },
-    }),
-  );
-
-  expect(wrapper.find('select')).toHaveLength(1);
-  expect(wrapper.find('select').prop('value')).toStrictEqual(['b']);
-});
-
 test('<SelectField> - renders a select which correctly reacts on change (first value)', () => {
   const onChange = jest.fn();
 
@@ -403,307 +79,6 @@ test('<SelectField> - renders a select which correctly reacts on change (next va
   expect(onChange).toHaveBeenLastCalledWith('x', ['a', 'b']);
 });
 
-test('<SelectField> - renders a select which correctly reacts on change (uncheck) by value', () => {
-  const onChange = jest.fn();
-
-  const element = <SelectField name="x" value={['a']} />;
-  const wrapper = mount(
-    element,
-    createContext(
-      {
-        x: { type: Array },
-        'x.$': { type: String, allowedValues: ['a', 'b'] },
-      },
-      { onChange },
-    ),
-  );
-
-  expect(wrapper.find('select')).toHaveLength(1);
-  expect(
-    wrapper.find('select').simulate('change', { target: { value: 'a' } }),
-  ).toBeTruthy();
-  expect(onChange).toHaveBeenLastCalledWith('x', []);
-});
-
-test('<SelectField> - renders a select which correctly reacts on change (uncheck) by selectedIndex', () => {
-  const onChange = jest.fn();
-
-  const element = <SelectField name="x" value={['a']} />;
-  const wrapper = mount(
-    element,
-    createContext(
-      {
-        x: { type: Array },
-        'x.$': { type: String, allowedValues: ['a', 'b'] },
-      },
-      { onChange },
-    ),
-  );
-
-  expect(wrapper.find('select')).toHaveLength(1);
-  expect(
-    wrapper
-      .find('select')
-      .simulate('change', { target: { selectedIndex: -1 } }),
-  ).toBeTruthy();
-  expect(onChange).toHaveBeenLastCalledWith('x', []);
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes', () => {
-  const element = <SelectField checkboxes name="x" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find('input')).toHaveLength(2);
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes with correct disabled state', () => {
-  const element = <SelectField checkboxes name="x" disabled />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find('input')).toHaveLength(2);
-  expect(wrapper.find('input').at(0).prop('disabled')).toBe(true);
-  expect(wrapper.find('input').at(1).prop('disabled')).toBe(true);
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes with correct readOnly state', () => {
-  const onChange = jest.fn();
-
-  const element = <SelectField checkboxes name="x" readOnly />;
-  const wrapper = mount(
-    element,
-    createContext(
-      { x: { type: String, allowedValues: ['a', 'b'] } },
-      { onChange },
-    ),
-  );
-
-  expect(wrapper.find('input')).toHaveLength(2);
-  expect(wrapper.find('input').at(1).simulate('change')).toBeTruthy();
-  expect(onChange).not.toHaveBeenCalled();
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes with correct id (inherited)', () => {
-  const element = <SelectField checkboxes name="x" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find('input')).toHaveLength(2);
-  expect(wrapper.find('input').at(0).prop('id')).toBeTruthy();
-  expect(wrapper.find('input').at(1).prop('id')).toBeTruthy();
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes with correct id (specified)', () => {
-  const element = <SelectField checkboxes name="x" id="y" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find('input')).toHaveLength(2);
-  expect(wrapper.find('input').at(0).prop('id')).toBe('y-YQ');
-  expect(wrapper.find('input').at(1).prop('id')).toBe('y-Yg');
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes with correct name', () => {
-  const element = <SelectField checkboxes name="x" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find('input')).toHaveLength(2);
-  expect(wrapper.find('input').at(0).prop('name')).toBe('x');
-  expect(wrapper.find('input').at(1).prop('name')).toBe('x');
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes with correct options', () => {
-  const element = <SelectField checkboxes name="x" />;
-  const wrapper = mount(
-    element,
-    createContext({
-      x: { type: String, allowedValues: ['a', 'b'], label: '' },
-    }),
-  );
-
-  expect(wrapper.find('label')).toHaveLength(2);
-  expect(wrapper.find('label').at(0).text()).toBe('a');
-  expect(wrapper.find('label').at(1).text()).toBe('b');
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes with correct options (transform)', () => {
-  const element = (
-    <SelectField
-      checkboxes
-      name="x"
-      options={[
-        { label: 'A', value: 'a' },
-        { label: 'B', value: 'b' },
-      ]}
-    />
-  );
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, label: '' } }),
-  );
-
-  expect(wrapper.find('label')).toHaveLength(2);
-  expect(wrapper.find('label').at(0).text()).toBe('A');
-  expect(wrapper.find('label').at(1).text()).toBe('B');
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes with correct value (default)', () => {
-  const element = <SelectField checkboxes name="x" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find('input')).toHaveLength(2);
-  expect(wrapper.find('input').at(0).prop('checked')).toBe(false);
-  expect(wrapper.find('input').at(1).prop('checked')).toBe(false);
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes with correct value (model)', () => {
-  const element = <SelectField checkboxes name="x" />;
-  const wrapper = mount(
-    element,
-    createContext(
-      { x: { type: String, allowedValues: ['a', 'b'] } },
-      { model: { x: 'b' } },
-    ),
-  );
-
-  expect(wrapper.find('input')).toHaveLength(2);
-  expect(wrapper.find('input').at(0).prop('checked')).toBe(false);
-  expect(wrapper.find('input').at(1).prop('checked')).toBe(true);
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes with correct value (specified)', () => {
-  const element = <SelectField checkboxes name="x" value="b" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find('input')).toHaveLength(2);
-  expect(wrapper.find('input').at(0).prop('checked')).toBe(false);
-  expect(wrapper.find('input').at(1).prop('checked')).toBe(true);
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes which correctly reacts on change', () => {
-  const onChange = jest.fn();
-
-  const element = <SelectField checkboxes name="x" />;
-  const wrapper = mount(
-    element,
-    createContext(
-      { x: { type: String, allowedValues: ['a', 'b'] } },
-      { onChange },
-    ),
-  );
-
-  expect(wrapper.find('input')).toHaveLength(2);
-  expect(wrapper.find('input').at(1).simulate('change')).toBeTruthy();
-  expect(onChange).toHaveBeenLastCalledWith('x', 'b');
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes which correctly reacts on change (array check)', () => {
-  const onChange = jest.fn();
-
-  const element = <SelectField checkboxes name="x" />;
-  const wrapper = mount(
-    element,
-    createContext(
-      {
-        x: { type: Array },
-        'x.$': { type: String, allowedValues: ['a', 'b'] },
-      },
-      { onChange },
-    ),
-  );
-
-  expect(wrapper.find('input')).toHaveLength(2);
-  expect(wrapper.find('input').at(1).simulate('change')).toBeTruthy();
-  expect(onChange).toHaveBeenLastCalledWith('x', ['b']);
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes which correctly reacts on change (array uncheck)', () => {
-  const onChange = jest.fn();
-
-  const element = <SelectField checkboxes name="x" value={['b']} />;
-  const wrapper = mount(
-    element,
-    createContext(
-      {
-        x: { type: Array },
-        'x.$': { type: String, allowedValues: ['a', 'b'] },
-      },
-      { onChange },
-    ),
-  );
-
-  expect(wrapper.find('input')).toHaveLength(2);
-  expect(wrapper.find('input').at(1).simulate('change')).toBeTruthy();
-  expect(onChange).toHaveBeenLastCalledWith('x', []);
-});
-
-test('<SelectField checkboxes> - renders a set of checkboxes which correctly reacts on change (same value)', () => {
-  const onChange = jest.fn();
-
-  const element = <SelectField checkboxes name="x" />;
-  const wrapper = mount(
-    element,
-    createContext(
-      { x: { type: String, allowedValues: ['a', 'b'] } },
-      { model: { x: 'b' }, onChange },
-    ),
-  );
-
-  expect(wrapper.find('input')).toHaveLength(2);
-  expect(wrapper.find('input').at(0).simulate('change')).toBeTruthy();
-  expect(onChange).toHaveBeenLastCalledWith('x', 'a');
-});
-
-test('<SelectField checkboxes> - renders a label', () => {
-  const element = <SelectField checkboxes name="x" label="y" />;
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find('label')).toHaveLength(3);
-  expect(wrapper.find('label').at(0).text()).toBe('y');
-});
-
-test('<SelectField checkboxes> - renders a wrapper with unknown props', () => {
-  const element = (
-    <SelectField checkboxes name="x" data-x="x" data-y="y" data-z="z" />
-  );
-  const wrapper = mount(
-    element,
-    createContext({ x: { type: String, allowedValues: ['a', 'b'] } }),
-  );
-
-  expect(wrapper.find('div').at(0).prop('data-x')).toBe('x');
-  expect(wrapper.find('div').at(0).prop('data-y')).toBe('y');
-  expect(wrapper.find('div').at(0).prop('data-z')).toBe('z');
-});
-
-test('<SelectField checkboxes> - works with special characters', () => {
-  mount(
-    <SelectField checkboxes name="x" />,
-    createContext({ x: { type: String, allowedValues: ['ă', 'ș'] } }),
-  );
-});
-
 test('<SelectField> - renders correct error text (specified)', () => {
   const error = new Error();
   const element = (
diff --git a/packages/uniforms-unstyled/__tests__/_createContext.ts b/packages/uniforms-unstyled/__tests__/_createContext.ts
deleted file mode 100644
index e687bc994..000000000
--- a/packages/uniforms-unstyled/__tests__/_createContext.ts
+++ /dev/null
@@ -1,38 +0,0 @@
-import { SimpleSchemaDefinition } from 'simpl-schema';
-import { Context, UnknownObject, randomIds, ChangedMap } from 'uniforms';
-
-import createSchema from './_createSchema';
-
-const randomId = randomIds();
-
-export default function createContext<Model extends UnknownObject>(
-  schema?: SimpleSchemaDefinition,
-  context?: Partial<Context<Model>>,
-  model = {} as Model,
-): { context: Context<Model> } {
-  return {
-    context: {
-      changed: false,
-      changedMap: {} as ChangedMap<Model>,
-      error: null,
-      model,
-      name: [],
-      onChange() {},
-      onSubmit() {},
-      randomId,
-      submitted: false,
-      submitting: false,
-      validating: false,
-      ...context,
-      schema: createSchema(schema),
-      state: {
-        disabled: false,
-        readOnly: false,
-        showInlineError: false,
-        ...context?.state,
-      },
-      // @ts-expect-error We don't have a true ref in tests.
-      formRef: null,
-    },
-  };
-}
diff --git a/packages/uniforms-unstyled/__tests__/_createSchema.ts b/packages/uniforms-unstyled/__tests__/_createSchema.ts
deleted file mode 100644
index 6ac1ef72b..000000000
--- a/packages/uniforms-unstyled/__tests__/_createSchema.ts
+++ /dev/null
@@ -1,6 +0,0 @@
-import SimpleSchema, { SimpleSchemaDefinition } from 'simpl-schema';
-import { SimpleSchema2Bridge } from 'uniforms-bridge-simple-schema-2';
-
-export default function createSchema(schema: SimpleSchemaDefinition = {}) {
-  return new SimpleSchema2Bridge({ schema: new SimpleSchema(schema) });
-}
diff --git a/packages/uniforms-unstyled/__tests__/_mount.tsx b/packages/uniforms-unstyled/__tests__/_mount.tsx
deleted file mode 100644
index d586e42dd..000000000
--- a/packages/uniforms-unstyled/__tests__/_mount.tsx
+++ /dev/null
@@ -1,14 +0,0 @@
-import { mount as enzyme } from 'enzyme';
-import { context } from 'uniforms';
-
-function mount(node: any, options: any) {
-  if (options === undefined) {
-    return enzyme(node);
-  }
-  return enzyme(node, {
-    wrappingComponent: context.Provider,
-    wrappingComponentProps: { value: options.context },
-  });
-}
-
-export default mount as typeof enzyme;