add fixture

test/fixtures/README.md

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+## Fixtures testing
+
+here are some fixtures for manual testing things we don't have Jest tests for.
+
+- `build-default` focuses on our zero config defaults
+- `build-invalid` lets us check what happens when we have invalid builds due to type errors
+- `build-withConfig` lets us check that `tsdx.config.js` works as expected

test/fixtures/build-withConfig/errors/ErrorDev.js

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+
+function ErrorDev(message) {
+  const error = new Error(message);
+  error.name = 'Invariant Violation';
+  return error;
+}
+
+export default ErrorDev;      
+

test/fixtures/build-withConfig/errors/ErrorProd.js

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+
+function ErrorProd(code) {
+  // TODO: replace this URL with yours
+  let url = 'https://reactjs.org/docs/error-decoder.html?invariant=' + code;
+  for (let i = 1; i < arguments.length; i++) {
+    url += '&args[]=' + encodeURIComponent(arguments[i]);
+  }
+  return new Error(
+    `Minified BuildWithconfig error #${code}; visit ${url} for the full message or ` +
+      'use the non-minified dev environment for full errors and additional ' +
+      'helpful warnings. '
+  );
+}
+
+export default ErrorProd;

test/fixtures/build-withConfig/errors/codes.json

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+{
+  "0": "this is an old error that shouldn't be overwritten",
+  "1": "error occurred! o no"
+}

test/fixtures/build-withConfig/package.json

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+{
+  "scripts": {
+    "build": "tsdx build --extractErrors"
+  },
+  "name": "build-withconfig",
+  "license": "MIT",
+  "dependencies": {
+    "tiny-invariant": "^1.0.6",
+    "tiny-warning": "^1.0.3"
+  },
+  "devDependencies": {
+    "autoprefixer": "^9.6.1",
+    "cssnano": "^4.1.10",
+    "eslint-config-postcss": "^3.0.7",
+    "rollup-plugin-postcss": "^2.0.3"
+  }
+}

test/fixtures/build-withConfig/src/foo.ts

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+export const foo = () => 'bar';

test/fixtures/build-withConfig/src/index.ts

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+import invariant from 'tiny-invariant';
+import warning from 'tiny-warning';
+invariant(true, 'error occurred! o no');
+warning(false, 'warning - water is wet');
+export { foo } from './foo';
+
+export const sum = (a: number, b: number) => {
+  if ('development' === process.env.NODE_ENV) {
+    console.log('fuck');
+  }
+  return a + b;
+};

test/fixtures/build-withConfig/test/blah.test.ts

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+import { sum } from '../src';
+
+describe('fuck', () => {
+  it('works', () => {
+    expect(sum(1, 1)).toEqual(2);
+  });
+});

test/fixtures/build-withConfig/tsconfig.json

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+{
+  "compilerOptions": {
+    "target": "es5",
+    "module": "ESNext",
+    "lib": ["dom", "esnext"],
+    "declaration": true,
+    "sourceMap": true,
+    "rootDir": "./",
+    "strict": true,
+    "noImplicitAny": true,
+    "strictNullChecks": true,
+    "strictFunctionTypes": true,
+    "strictPropertyInitialization": true,
+    "noImplicitThis": true,
+    "alwaysStrict": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "noImplicitReturns": true,
+    "noFallthroughCasesInSwitch": true,
+    "moduleResolution": "node",
+    "baseUrl": "./",
+    "paths": {
+      "*": ["src/*", "node_modules/*"]
+    },
+    "jsx": "react",
+    "esModuleInterop": true
+  },
+  "include": ["src", "types"],
+}

test/fixtures/build-withConfig/tsdx.config.js

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+const postcss = require('rollup-plugin-postcss');
+const autoprefixer = require('autoprefixer');
+const cssnano = require('cssnano');
+
+module.exports = {
+  rollup(config, options) {
+    config.plugins.push(
+      postcss({
+        plugins: [
+          autoprefixer(),
+          cssnano({
+            preset: 'default',
+          }),
+        ],
+        inject: false,
+        // only write out CSS for the first bundle (avoids pointless extra files):
+        extract: !!options.writeMeta,
+      })
+    );
+    return config;
+  },
+};