test: test compile dev/prod webpack config

test/__fixtures__/custom-website/siteConfig.js

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+module.exports = {
+  title: 'Sakura',
+  tagline: 'This is not an ordinary site',
+  organizationName: 'endiliey',
+  projectName: 'sakura',
+  baseUrl: '/sakura/'
+};

test/__fixtures__/simple-website/pages/bar/baz.js

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+import React from 'react';
+
+export default () => <div>Baz</div>;

test/__fixtures__/simple-website/pages/foo.js

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+import React from 'react';
+
+export default () => <div>Foo</div>;

test/__fixtures__/simple-website/pages/foo/index.js

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+import React from 'react';
+
+export default () => <div>Foo in subfolder</div>;

test/__fixtures__/simple-website/pages/index.js

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+import React from 'react';
+
+export default () => <div>Index</div>;

test/__fixtures__/simple-website/siteConfig.js

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+module.exports = {
+  title: 'Hello',
+  tagline: 'Hello World',
+  organizationName: 'endiliey',
+  projectName: 'hello',
+  baseUrl: '/'
+};

test/loadSetup.js

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+import path from 'path';
+import load from '@lib/load';
+
+// Helper methods to setup dummy/ fake projects
+const loadSetup = async name => {
+  const simpleWebsite = path.join(__dirname, '__fixtures__', 'simple-website');
+  const customWebsite = path.join(__dirname, '__fixtures__', 'custom-website');
+
+  switch (name) {
+    case 'simple':
+      return await load(simpleWebsite);
+    case 'custom':
+      return await load(customWebsite);
+    default:
+      return {};
+  }
+};
+
+export default loadSetup;

test/webpack/index.test.js

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+import webpack from 'webpack';
+import path from 'path';
+import createBaseConfig from '@lib/webpack/base';
+import createDevConfig from '@lib/webpack/dev';
+import createProdConfig from '@lib/webpack/prod';
+import loadSetup from '../loadSetup';
+
+// webpack compiler helper function
+function compile(config) {
+  return new Promise((resolve, reject) => {
+    webpack(config, (err, stats) => {
+      if (err || stats.hasErrors()) {
+        reject(new Error(`Failed to compile with errors`));
+      }
+      resolve('Compiled successfully');
+    });
+  });
+}
+
+describe('webpack', () => {
+  test('dev simple', async () => {
+    console.log = jest.fn();
+    const props = await loadSetup('simple');
+    const config = createDevConfig(props).toConfig();
+    return expect(compile(config)).resolves.toBe('Compiled successfully');
+  });
+
+  test('dev custom', async () => {
+    console.log = jest.fn();
+    const props = await loadSetup('custom');
+    const config = createDevConfig(props).toConfig();
+    return expect(compile(config)).resolves.toBe('Compiled successfully');
+  });
+
+  test('prod simple', async () => {
+    console.log = jest.fn();
+    const props = await loadSetup('simple');
+    const config = createProdConfig(props).toConfig();
+    return expect(compile(config)).resolves.toBe('Compiled successfully');
+  });
+
+  test('prod custom', async () => {
+    console.log = jest.fn();
+    const props = await loadSetup('custom');
+    const config = createProdConfig(props).toConfig();
+    return expect(compile(config)).resolves.toBe('Compiled successfully');
+  });
+});