Run the tests of downstream projects.

This is done by checking out each project, run npm install, drop-in a replacement for esprima.js, and run npm test. As of now, this is carried out only as part of Travis CI build. It can be tested manually by: rm -rf downstream npm run downstream Due to some unknown reason, .eslintrc can't exist otherwise it is going to confuse the linting of the downstream project. The workaround is to use custom config file. Closes jquery#1023 Closes jquerygh-1206
jasonLaster · Jun 30, 2015 · 819cada · 819cada
1 parent 06adb24
commit 819cada
Show file tree

Hide file tree

Showing 3 changed files with 98 additions and 2 deletions.
diff --git a/.eslintrc → .lintrc b/.eslintrc → .lintrc
diff --git a/package.json b/package.json
@@ -54,7 +54,7 @@
 
         "check-version": "node test/check-version.js",
         "jscs": "jscs esprima.js && jscs test/*.js",
-        "eslint": "node node_modules/eslint/bin/eslint.js esprima.js",
+        "eslint": "node node_modules/eslint/bin/eslint.js -c .lintrc esprima.js",
         "complexity": "node test/check-complexity.js",
         "static-analysis": "npm run check-version && npm run jscs && npm run eslint && npm run complexity",
 
@@ -71,7 +71,9 @@
         "benchmark": "node test/benchmarks.js",
         "benchmark-quick": "node test/benchmarks.js quick",
 
-        "travis": "npm test && coveralls < ./coverage/lcov.info",
+        "coveralls": "coveralls < ./coverage/lcov.info",
+        "downstream": "node test/downstream.js",
+        "travis": "npm test && npm run coveralls && npm run downstream",
 
         "generate-regex": "node tools/generate-identifier-regex.js"
     }

diff --git a/test/downstream.js b/test/downstream.js
@@ -0,0 +1,94 @@
+/*
+  Copyright (c) jQuery Foundation, Inc. and Contributors, All Rights Reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+  ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+var child_process = require('child_process'),
+    fs = require('fs');
+
+function execute(cmd) {
+    child_process.execSync(cmd, { stdio: 'inherit' });
+}
+
+function copy_file(source, target) {
+    fs.writeFileSync(target, fs.readFileSync(source));
+}
+
+function test_project(project, repo) {
+    console.log();
+    console.log('==========', project);
+    console.log();
+    console.log('Cloning', repo, '...');
+    execute('git clone --depth 1 ' + repo + ' ' + project);
+
+    process.chdir(project);
+    console.log();
+    console.log('HEAD is');
+    execute('git log -n1');
+
+    console.log();
+    execute('npm install');
+
+    console.log();
+    console.log('Replacing esprima.js with a fresh one...');
+    copy_file('../../esprima.js', './node_modules/esprima/esprima.js');
+
+    console.log();
+    try {
+        execute('npm test');
+    } catch (e) {
+        console.log('Failing: ', e.toString());
+        process.exit(1);
+    }
+    process.chdir('..');
+}
+
+function test_downstream(projects) {
+    var nodejs_version = 'v0.12',
+        downstream_path = 'downstream';
+
+    if (typeof child_process.execSync !== 'function') {
+        console.error('This only works with Node.js that support execSync');
+        process.exit(0);
+    }
+    if (process.version.indexOf(nodejs_version) !== 0) {
+        console.error('This is intended to run only with Node.js', nodejs_version);
+        process.exit(0);
+    }
+
+    if (!fs.existsSync(downstream_path)) {
+        fs.mkdirSync(downstream_path, 0766);
+    }
+    process.chdir(downstream_path);
+
+    Object.keys(projects).forEach(function (project) {
+        test_project(project, projects[project]);
+    });
+}
+
+
+test_downstream({
+    'escope': 'https://github.com/estools/escope.git',
+    'escomplex-js': 'https://github.com/philbooth/escomplex-js.git',
+    'js2coffee': 'https://github.com/js2coffee/js2coffee.git',
+    'istanbul': 'https://github.com/gotwarlost/istanbul.git'
+});