A proof of concept for frontend test with substrate in docker (#3371)

* React tests PoC.

* Globally start and stop substrate for all tests.

* Fix compilation problem.

* Another attempt to make both compilation and tests work.

* Apply suggestions from code review

* Run slow tests with docker only nightly.

* Update yarn.lock.

Co-authored-by: Jaco Greeff <jacogr@gmail.com>

.github/workflows/test-nightly.yml

@@ -0,0 +1,19 @@
+name: Nightly tests run
+on:
+  schedule:
+    - cron:  '1 5 * * *'
+
+
+jobs:
+  alltests:
+    strategy:
+      matrix:
+        step: ['test:all']
+    name: ${{ matrix.step }}
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - name: ${{ matrix.step }}
+      run: |
+        yarn install --immutable | grep -v 'YN0013'
+        yarn ${{ matrix.step }}

__mocks__/fileMock.js

@@ -0,0 +1,6 @@
+// Copyright 2019-2020 @polkadot/extension authors & contributors
+// This software may be modified and distributed under the terms
+// of the Apache-2.0 license. See the LICENSE file for details.
+
+// eslint-disable-line
+module.exports = '';

jest.config.js

@@ -14,13 +14,30 @@ const internalModules = findPackages()
     return modules;
   }, {});
 
-module.exports = Object.assign({}, config, {
+const defaultConfig = {
   moduleNameMapper: {
     ...internalModules,
     '\\.(css|less)$': 'empty/object',
-    '\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$': 'empty/object'
+    '\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$': 'empty/object',
+    '\\.(md)$': '<rootDir>/__mocks__/fileMock.js'
   },
+  testTimeout: 25000,
   transformIgnorePatterns: [
     '<rootDir>/node_modules'
   ]
+};
+
+module.exports = Object.assign({}, config, {
+  projects: [
+    {
+      ...defaultConfig,
+      displayName: 'all-tests',
+      globalSetup: './jest/globalSetup.ts',
+      globalTeardown: './jest/globalTeardown.ts'
+    },
+    {
+      ...defaultConfig,
+      displayName: 'fast-tests'
+    }
+  ]
 });

jest/globalSetup.ts

@@ -0,0 +1,28 @@
+// Copyright 2017-2020 @polkadot/app-accounts authors & contributors
+// This software may be modified and distributed under the terms
+// of the Apache-2.0 license. See the LICENSE file for details.
+
+import { GenericContainer, Wait } from 'testcontainers';
+import { SubstrateTestsGlobal } from './substrateTestsGlobal';
+
+declare const global: SubstrateTestsGlobal;
+
+const startSubstrate = async () => {
+  console.log('Substrate container starting...');
+
+  const startedTestContainer = await new GenericContainer('parity/substrate')
+    .withName('polkadot-apps-test-substrate')
+    .withExposedPorts(9944)
+    .withCmd(['--dev', '--ws-port=9944', '--unsafe-ws-external'])
+    .withWaitStrategy(Wait.forLogMessage('New epoch 0 launching'))
+    .start();
+
+  console.log('Done.');
+
+  process.env.TEST_SUBSTRATE_PORT = startedTestContainer.getMappedPort(9944)?.toString() || '';
+  global.__SUBSTRATE__ = startedTestContainer;
+};
+
+export default async (): Promise<void> => {
+  await startSubstrate();
+};

jest/globalTeardown.ts

@@ -0,0 +1,15 @@
+// Copyright 2017-2020 @polkadot/app-accounts authors & contributors
+// This software may be modified and distributed under the terms
+// of the Apache-2.0 license. See the LICENSE file for details.
+
+import { SubstrateTestsGlobal } from './substrateTestsGlobal';
+
+declare const global: SubstrateTestsGlobal;
+
+export default async (): Promise<void> => {
+  console.log('Shutting down Substrate container...');
+
+  await global.__SUBSTRATE__.stop();
+
+  console.log('Done.');
+};

jest/substrateTestsGlobal.ts

@@ -0,0 +1,10 @@
+// Copyright 2017-2020 @polkadot/app-accounts authors & contributors
+// This software may be modified and distributed under the terms
+// of the Apache-2.0 license. See the LICENSE file for details.
+
+import { StartedTestContainer } from 'testcontainers';
+
+export interface SubstrateTestsGlobal extends NodeJS.Global {
+  __SUBSTRATE__: StartedTestContainer;
+  // You can declare anything you need.
+}

package.json

@@ -71,7 +71,8 @@
     "lint:css": "stylelint './packages/**/src/**/*.tsx'",
     "postinstall": "polkadot-dev-yarn-only",
     "postinstall:electron": "electron-builder install-app-deps",
-    "test": "polkadot-dev-run-test packages/page-claims/src packages/apps-electron",
+    "test": "polkadot-dev-run-test --selectProjects=fast-tests --silent --testNamePattern='^((?!--SLOW--).)*$'",
+    "test:all": "polkadot-dev-run-test --selectProjects=all-tests --silent",
     "test:one": "polkadot-dev-run-test",
     "start": "yarn clean && cd packages/apps && webpack --config webpack.config.js",
     "start:electron": "yarn clean:electronBuild && concurrently 'yarn build:devElectronMain && cd packages/apps-electron && electron ./build/electron.js' 'yarn build:devElectronRenderer'"

packages/page-accounts/package.json

@@ -16,5 +16,9 @@
     "@polkadot/vanitygen": "^0.20.0-beta.1",
     "detect-browser": "^5.1.1",
     "file-saver": "^2.0.2"
+  },
+  "devDependencies": {
+    "@testing-library/react": "^10.4.8",
+    "testcontainers": "^2.17.0"
   }
 }

packages/page-accounts/src/CreateAccount.spec.tsx

@@ -0,0 +1,63 @@
+// Copyright 2017-2020 @polkadot/app-accounts authors & contributors
+// This software may be modified and distributed under the terms
+// of the Apache-2.0 license. See the LICENSE file for details.
+
+import AccountsApp from '@polkadot/app-accounts';
+import { MemoryStore } from '@polkadot/app-accounts/test-support/MemoryStore';
+import { Api } from '@polkadot/react-api';
+import '@polkadot/react-components/i18n';
+import { useApi } from '@polkadot/react-hooks';
+import { fireEvent, render } from '@testing-library/react';
+import React, { PropsWithChildren } from 'react';
+import { MemoryRouter } from 'react-router-dom';
+
+const SUBSTRATE_PORT = Number.parseInt(process.env.TEST_SUBSTRATE_PORT || '30333');
+
+const WaitForApi = ({ children }: { children: React.ReactNode }): PropsWithChildren<any> | null => {
+  const api = useApi();
+
+  return api.isApiReady ? (children) : null;
+};
+
+describe('--SLOW--: Account Create', () => {
+  it('asks for confirmation after saving new account', async () => {
+    const memoryStore = new MemoryStore();
+
+    const { findByPlaceholderText, findByTestId, findByText } = render(
+      <MemoryRouter>
+        <Api store={memoryStore}
+          url={`ws://127.0.0.1:${SUBSTRATE_PORT}`}>
+          <WaitForApi>
+            <div>
+              <AccountsApp basePath='/accounts'
+                onStatusChange={() => { /* */
+                }}/>
+            </div>
+          </WaitForApi>
+        </Api>
+      </MemoryRouter>
+    );
+
+    const addAccountButton = await findByText('Add account', {}, { timeout: 4000 });
+
+    fireEvent.click(addAccountButton);
+
+    const nameInput = await findByPlaceholderText('new account');
+
+    fireEvent.change(nameInput, { target: { value: 'my super account' } });
+
+    const passwordInput = await findByTestId('password');
+
+    fireEvent.change(passwordInput, { target: { value: 'a' } });
+
+    const passwordRepeatInput = await findByTestId('password (repeat)');
+
+    fireEvent.change(passwordRepeatInput, { target: { value: 'a' } });
+
+    const saveButton = await findByText('Save');
+
+    fireEvent.click(saveButton);
+
+    expect(await findByText('Create and backup account')).toBeTruthy();
+  });
+});

packages/page-accounts/src/test-support/MemoryStore.ts

@@ -0,0 +1,35 @@
+// Copyright 2017-2020 @polkadot/app-accounts authors & contributors
+// This software may be modified and distributed under the terms
+// of the Apache-2.0 license. See the LICENSE file for details.
+
+import { KeyringJson, KeyringStore } from '@polkadot/ui-keyring/types';
+
+type AccountsMap = Record<string, KeyringJson>;
+
+export class MemoryStore implements KeyringStore {
+  private accounts: AccountsMap = {};
+
+  all (cb: (key: string, value: KeyringJson) => void): void {
+    Object.keys(this.accounts).forEach((accountsKey) => cb(accountsKey, this.accounts[accountsKey]));
+  }
+
+  get (key: string, cb: (value: KeyringJson) => void): void {
+    cb(this.accounts[key]);
+  }
+
+  remove (key: string, cb: (() => void) | undefined): void {
+    delete this.accounts[key];
+
+    if (cb) {
+      cb();
+    }
+  }
+
+  set (key: string, value: KeyringJson, cb: (() => void) | undefined): void {
+    this.accounts[key] = value;
+
+    if (cb) {
+      cb();
+    }
+  }
+}

packages/react-components/src/Input.tsx

@@ -198,6 +198,7 @@ function Input ({ autoFocus = false, children, className, defaultValue, help, ic
               : 'off'
           }
           autoCorrect='off'
+          data-testid={label}
           onPaste={_onPaste}
           spellCheck={false}
         />

yarn.lock

@@ -1428,7 +1428,17 @@ __metadata:
   languageName: node
   linkType: hard
 
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+"@babel/runtime-corejs3@npm:^7.10.2":
+  version: 7.11.2
+  resolution: "@babel/runtime-corejs3@npm:7.11.2"
+  dependencies:
+    core-js-pure: ^3.0.0
+    regenerator-runtime: ^0.13.4
+  checksum: 151da4e97bb558d5a58e2a94eb89bcd505b7273c00b6ad8fe1988aefbe16aee01aa83dba0e90e56370a3e99d974d4f5fb081a6489161dc414e322d70bf19bc92
+  languageName: node
+  linkType: hard
+
+"@babel/runtime@npm:^7.1.2, @babel/runtime@npm:^7.10.1, @babel/runtime@npm:^7.10.2, @babel/runtime@npm:^7.10.3, @babel/runtime@npm:^7.11.0, @babel/runtime@npm:^7.11.2, @babel/runtime@npm:^7.3.1, @babel/runtime@npm:^7.5.5, @babel/runtime@npm:^7.8.4":
   version: 7.11.2
   resolution: "@babel/runtime@npm:7.11.2"
   dependencies:
@@ -3099,8 +3109,10 @@ __metadata:
     "@babel/runtime": ^7.11.2
     "@polkadot/react-components": 0.55.0-beta.4
     "@polkadot/vanitygen": ^0.20.0-beta.1
+    "@testing-library/react": ^10.4.8
     detect-browser: ^5.1.1
     file-saver: ^2.0.2
+    testcontainers: ^2.17.0
   languageName: unknown
   linkType: soft
 
@@ -3925,6 +3937,32 @@ __metadata:
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+"@testing-library/dom@npm:^7.17.1":
+  version: 7.22.2
+  resolution: "@testing-library/dom@npm:7.22.2"
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+    aria-query: ^4.2.2
+    dom-accessibility-api: ^0.5.0
+    pretty-format: ^25.5.0
+  checksum: 9894fb1e1ca335099b1c3d8e5ecc2c3222bfa7ec0345c9053943d27657a554ea9c326af14a400c63cb8431de59a03baf1ec1ae4d28ec9d3abfc40db230879bc0
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@@ -3932,6 +3970,13 @@ __metadata:
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+"@types/aria-query@npm:^4.2.0":
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@@ -4036,6 +4081,15 @@ __metadata:
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+"@types/dockerode@npm:^2.5.34":
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@@ -5709,6 +5763,16 @@ __metadata:
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+"aria-query@npm:^4.2.2":
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+  languageName: node
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+
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@@ -5869,7 +5933,7 @@ __metadata:
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+"core-js-pure@npm:^3.0.0":
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@@ -9395,6 +9466,35 @@ __metadata:
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+"docker-compose@npm:^0.23.5":
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+
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@@ -9438,6 +9538,13 @@ __metadata:
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   linkType: hard
 
+"dom-accessibility-api@npm:^0.5.0":
+  version: 0.5.0
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+  languageName: node
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+
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@@ -11577,6 +11684,13 @@ __metadata:
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+"get-port@npm:^5.1.1":
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@@ -16829,6 +16943,13 @@ __metadata:
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+"node-duration@npm:^1.0.4":
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+
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+"ssh2-streams@npm:~0.4.10":
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+  resolution: "ssh2-streams@npm:0.4.10"
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+"stream-to-array@npm:^2.3.0":
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+
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+  version: 0.1.2
+  resolution: "streamsearch@npm:0.1.2"
+  checksum: f72befba95082d49be19cd4318112bc141f6cd7cbb201ee8079887f6f3cbcdf79c311977ce0eaa93d7d8c3e6b9727412f6177a87ced5b98d0fd4075723ad8eaf
+  languageName: node
+  linkType: hard
+
 "strict-uri-encode@npm:^1.0.0":
   version: 1.1.0
   resolution: "strict-uri-encode@npm:1.1.0"
@@ -22409,7 +22573,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"tar-fs@npm:^2.0.0":
+"tar-fs@npm:^2.0.0, tar-fs@npm:^2.1.0":
   version: 2.1.0
   resolution: "tar-fs@npm:2.1.0"
   dependencies:
@@ -22421,6 +22585,18 @@ __metadata:
   languageName: node
   linkType: hard
 
+"tar-fs@npm:~2.0.1":
+  version: 2.0.1
+  resolution: "tar-fs@npm:2.0.1"
+  dependencies:
+    chownr: ^1.1.1
+    mkdirp-classic: ^0.5.2
+    pump: ^3.0.0
+    tar-stream: ^2.0.0
+  checksum: 890f546bf67836f092fc15b48324b6f29692a12ed809f36aa4855c66f2ef101a5295e196b0c9f5cf8fde5c18f44a935e7766748c29b1d9699a9d8f779b06965b
+  languageName: node
+  linkType: hard
+
 "tar-stream@npm:^2.0.0":
   version: 2.1.3
   resolution: "tar-stream@npm:2.1.3"
@@ -22598,6 +22774,24 @@ __metadata:
   languageName: node
   linkType: hard
 
+"testcontainers@npm:^2.17.0":
+  version: 2.20.0
+  resolution: "testcontainers@npm:2.20.0"
+  dependencies:
+    "@types/dockerode": ^2.5.34
+    byline: ^5.0.0
+    debug: ^4.1.1
+    docker-compose: ^0.23.5
+    dockerode: ^3.2.0
+    get-port: ^5.1.1
+    glob: ^7.1.6
+    node-duration: ^1.0.4
+    stream-to-array: ^2.3.0
+    tar-fs: ^2.1.0
+  checksum: 389b2e2f689872ec0b82061fbea1d3af98b95587bacf9b023748902bd7e02f66aa07d65d70a0234e92bc4b1655d5be157481468ce31e30d46deb0fc3d0256c11
+  languageName: node
+  linkType: hard
+
 "text-extensions@npm:^1.0.0":
   version: 1.9.0
   resolution: "text-extensions@npm:1.9.0"