ReactClassEquivalence

grunt/tasks/jest.js

@@ -83,7 +83,12 @@ function run(done, configPath) {
   grunt.util.spawn({
     cmd: 'node',
     args: args,
-    opts: { stdio: 'inherit', env: { NODE_ENV: 'test' } },
+    opts: {
+      stdio: 'inherit',
+      env: Object.assign({}, process.env, {
+        NODE_ENV: 'test',
+      }),
+    },
   }, function(spawnErr, result, code) {
     if (spawnErr) {
       onError(spawnErr);

src/isomorphic/modern/class/__tests__/ReactClassEquivalence-test.js

@@ -11,24 +11,62 @@
 
 'use strict';
 
-var MetaMatchers = require('MetaMatchers');
+var spawnSync = require('child_process').spawnSync;
+var path = require('path');
 
 describe('ReactClassEquivalence', function() {
-
-  beforeEach(function() {
-    this.addMatchers(MetaMatchers);
-  });
-
-  var es6 = () => require('./ReactES6Class-test.js');
-  var coffee = () => require('./ReactCoffeeScriptClass-test.coffee');
-  var ts = () => require('./ReactTypeScriptClass-test.ts');
-
   it('tests the same thing for es6 classes and CoffeeScript', function() {
-    expect(coffee).toEqualSpecsIn(es6);
+    var result1 = runJest('ReactCoffeeScriptClass-test.coffee');
+    var result2 = runJest('ReactES6Class-test.js');
+    compareResults(result1, result2);
   });
 
   it('tests the same thing for es6 classes and TypeScript', function() {
-    expect(ts).toEqualSpecsIn(es6);
+    var result1 = runJest('ReactTypeScriptClass-test.ts');
+    var result2 = runJest('ReactES6Class-test.js');
+    compareResults(result1, result2);
   });
 
 });
+
+function runJest(testFile) {
+  var cwd = process.cwd();
+  var jestBin = path.resolve('node_modules', '.bin', 'jest');
+  var setupFile = path.resolve(__dirname, 'setupSpecEquivalenceReporter.js');
+  var result = spawnSync('node', [
+    jestBin,
+    testFile,
+    '--setupFile',
+    setupFile,
+  ], {cwd});
+
+  if (result.error) {
+    throw result.error;
+  }
+
+  if (result.status !== 0) {
+    throw new Error(
+      'jest process exited with: ' +
+      result.status +
+      '\n' +
+      'stdout: ' +
+      result.stdout.toString() +
+      'stderr: ' +
+      result.stderr.toString()
+    );
+  }
+
+  return result.stdout.toString();
+}
+
+function compareResults(a, b) {
+  var regexp = /^EQUIVALENCE.*$/gm;
+  var aSpecs = (a.match(regexp) || []).sort().join('\n');
+  var bSpecs = (b.match(regexp) || []).sort().join('\n');
+
+  if (aSpecs.length === 0 && bSpecs.length === 0) {
+    throw new Error('No spec results found in the output');
+  }
+
+  expect(aSpecs).toEqual(bSpecs);
+}

src/isomorphic/modern/class/__tests__/setupSpecEquivalenceReporter.js

@@ -0,0 +1,31 @@
+/*!
+ * Copyright 2015-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
+'use strict';
+
+var expect = global.expect;
+
+var numExpectations = 0;
+
+global.expect = function() {
+  numExpectations += 1;
+  return expect.apply(this, arguments);
+};
+
+beforeEach(() => numExpectations = 0);
+
+jasmine.currentEnv_.addReporter({
+  specDone: (spec) => {
+    console.log(
+      `EQUIVALENCE: ${spec.description}, ` +
+      `status: ${spec.status}, ` +
+      `numExpectations: ${numExpectations}`
+    );
+  },
+});