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node_modules/less/test/browser/generator/generate.js

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+const template = require('./template')
+let config
+const fs = require('fs-extra')
+const path = require('path')
+const globby = require('globby')
+const { runner } = require('mocha-headless-chrome')
+
+
+if (process.argv[2]) {
+    config = require(`./${process.argv[2]}.config`)
+} else {
+    config = require('./runner.config')
+}
+
+/**
+ * Generate templates and run tests
+ */
+const tests = []
+const cwd = process.cwd()
+const tmpDir = path.join(cwd, 'tmp', 'browser')
+fs.ensureDirSync(tmpDir)
+fs.copySync(path.join(cwd, 'test', 'browser', 'common.js'), path.join(tmpDir, 'common.js'))
+
+let numTests = 0
+let passedTests = 0
+let failedTests = 0
+
+/** Will run the runners in a series */
+function runSerial(tasks) {
+    var result = Promise.resolve()
+    start = Date.now()
+    tasks.forEach(task => {
+        result = result.then(result => {
+            if (result && result.result && result.result.stats) {
+                const stats = result.result.stats
+                numTests += stats.tests
+                passedTests += stats.passes
+                failedTests += stats.failures
+            }
+            return task()
+        }, err => {
+            console.log(err)
+            failedTests += 1
+        })
+    })
+    return result
+}
+
+Object.entries(config).forEach(entry => {
+    const test = entry[1]
+    const paths = globby.sync(test.src)
+    const templateString = template(paths, test.options.helpers, test.options.specs)
+    fs.writeFileSync(path.join(cwd, test.options.outfile), templateString)
+    tests.push(() => {
+        const file = 'http://localhost:8081/' + test.options.outfile
+        console.log(file)
+        return runner({
+            file,
+            timeout: 3500,
+            args: ['disable-web-security']
+        })
+    })
+})
+
+module.exports = () => runSerial(tests).then(() => {
+    if (failedTests > 0) {
+        process.stderr.write(failedTests + ' Failed, ' + passedTests + ' passed\n');
+    } else {
+        process.stdout.write('All Passed ' + passedTests + ' run\n');
+    }
+    if (failedTests) {
+        process.on('exit', function() { process.reallyExit(1); });
+    }
+    process.exit()
+}, err => {
+    process.stderr.write(err.message);
+    process.exit()
+})