add test to run loader simultaneously

Ref. #7
piglovesyou · Jan 10, 2020 · b3dbc90 · b3dbc90
1 parent 19aec11
commit b3dbc90
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Showing 2 changed files with 44 additions and 18 deletions.
diff --git a/test/compiler.ts b/test/compiler.ts
@@ -3,7 +3,10 @@ import webpack from 'webpack';
 import memoryfs from 'memory-fs';
 import nodeExternals from 'webpack-node-externals';
 
-export default (fixture: string): Promise<webpack.Stats> => {
+export default (
+  fixture: string,
+  target: 'node' | 'web',
+): Promise<webpack.Stats> => {
   const compiler = webpack({
     mode: 'production',
     context: __dirname,
@@ -12,7 +15,7 @@ export default (fixture: string): Promise<webpack.Stats> => {
       path: path.resolve(__dirname),
       filename: 'bundle.js',
     },
-    target: 'node',
+    target,
     externals: [nodeExternals()],
     module: {
       rules: [

diff --git a/test/loader.test.ts b/test/loader.test.ts
@@ -3,11 +3,7 @@
 import assert from 'assert';
 import compiler from './compiler';
 
-test(
-  'Inserts name and outputs JavaScript',
-  async () => {
-    const fixture = 'pages/viewer.graphql';
-    const expect = `function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }
+const expect = `function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }
 
 import gql from 'graphql-tag';
 import * as React from 'react';
@@ -48,14 +44,41 @@ export function useViewerLazyQuery(baseOptions) {
   return ApolloReactHooks.useLazyQuery(ViewerDocument, baseOptions);
 }`;
 
-    const stats = await compiler(fixture);
-    const { 0: actual, length } = stats
-      .toJson()
-      .modules!.map(m => m.source)
-      .filter(Boolean);
-
-    assert.deepStrictEqual(length, 1);
-    assert.deepStrictEqual(actual, expect);
-  },
-  60 * 1000,
-);
+describe('graphql-let/loader', () => {
+  test(
+    'generates .tsx and .d.ts',
+    async () => {
+      const fixture = 'pages/viewer.graphql';
+      const stats = await compiler(fixture, 'node');
+      const { 0: actual, length } = stats
+        .toJson()
+        .modules!.map(m => m.source)
+        .filter(Boolean);
+
+      assert.deepStrictEqual(length, 1);
+      assert.deepStrictEqual(actual, expect);
+    },
+    60 * 1000,
+  );
+
+  test(
+    'runs well for simultaneous execution assuming SSR',
+    async () => {
+      const fixture = 'pages/viewer.graphql';
+      const results = await Promise.all([
+        compiler(fixture, 'node'),
+        compiler(fixture, 'web'),
+      ]);
+      for (const stats of results) {
+        const { 0: actual, length } = stats
+          .toJson()
+          .modules!.map(m => m.source)
+          .filter(Boolean);
+
+        assert.deepStrictEqual(length, 1);
+        assert.deepStrictEqual(actual, expect);
+      }
+    },
+    60 * 1000,
+  );
+});