Support benchmarks in Karma tests.

Author: davidlehn

CHANGELOG.md

@@ -1,5 +1,7 @@
 # jsonld ChangeLog
 
+- Support benchmarks in Karma tests.
+
 ## 5.2.0 - 2021-04-07
 
 ### Changed

karma.conf.js

@@ -120,6 +120,10 @@ module.exports = function(config) {
               }
             }
           }
+        ],
+        noParse: [
+          // avoid munging internal benchmark script magic
+          /benchmark/
         ]
       },
       node: {

tests/test-common.js

@@ -3,7 +3,6 @@
  */
 /* eslint-disable indent */
 const EarlReport = require('./earl-report');
-const benchmark = require('benchmark');
 const join = require('join-path-js');
 const rdfCanonize = require('rdf-canonize');
 const {prependBase} = require('../lib/url');
@@ -13,6 +12,7 @@ module.exports = function(options) {
 'use strict';
 
 const assert = options.assert;
+const benchmark = options.benchmark;
 const jsonld = options.jsonld;
 
 const manifest = options.manifest || {
@@ -573,8 +573,8 @@ function addTest(manifest, test, tests) {
           throw Error('Unknown test type: ' + test.type);
         }
 
-        let benchResult = null
-        if(options.benchmark) {
+        let benchResult = null;
+        if(options.benchmarkOptions) {
           const result = await runBenchmark({
             test,
             fn,

tests/test-karma.js

@@ -35,6 +35,13 @@ const server = require('karma-server-side');
 const webidl = require('./test-webidl');
 const join = require('join-path-js');
 
+// special benchmark setup
+const _ = require('lodash');
+const _process = require('process');
+const benchmark = require('benchmark');
+const Benchmark = benchmark.runInContext({_, _process});
+window.Benchmark = Benchmark;
+
 const entries = [];
 
 if(process.env.JSONLD_TESTS) {
@@ -75,20 +82,21 @@ if(process.env.JSONLD_TESTS) {
   entries.push(webidl);
 }
 
-let benchmark = null;
+let benchmarkOptions = null;
 if(process.env.JSONLD_BENCHMARK) {
-  benchmark = {};
+  benchmarkOptions = {};
   if(!(['1', 'true'].includes(process.env.JSONLD_BENCHMARK))) {
     process.env.JSONLD_BENCHMARK.split(',').forEach(pair => {
       const kv = pair.split('=');
-      benchmark[kv[0]] = kv[1];
+      benchmarkOptions[kv[0]] = kv[1];
     });
   }
 }
 
 const options = {
   nodejs: false,
   assert,
+  benchmark,
   jsonld,
   /* eslint-disable-next-line no-unused-vars */
   exit: code => {
@@ -103,7 +111,7 @@ const options = {
   verboseSkip: process.env.VERBOSE_SKIP === 'true',
   bailOnError: process.env.BAIL === 'true',
   entries,
-  benchmark,
+  benchmarkOptions,
   readFile: filename => {
     return server.run(filename, function(filename) {
       const fs = serverRequire('fs-extra');

tests/test.js

@@ -25,6 +25,7 @@
  * Copyright (c) 2011-2019 Digital Bazaar, Inc. All rights reserved.
  */
 const assert = require('chai').assert;
+const benchmark = require('benchmark');
 const common = require('./test-common');
 const fs = require('fs-extra');
 const jsonld = require('..');
@@ -84,13 +85,13 @@ if(process.env.JSONLD_TESTS) {
   entries.push(path.resolve(_top, 'tests/node-document-loader-tests.js'));
 }
 
-let benchmark = null;
+let benchmarkOptions = null;
 if(process.env.JSONLD_BENCHMARK) {
-  benchmark = {};
+  benchmarkOptions = {};
   if(!(['1', 'true'].includes(process.env.JSONLD_BENCHMARK))) {
     process.env.JSONLD_BENCHMARK.split(',').forEach(pair => {
       const kv = pair.split('=');
-      benchmark[kv[0]] = kv[1];
+      benchmarkOptions[kv[0]] = kv[1];
     });
   }
 }
@@ -100,6 +101,7 @@ const options = {
     path
   },
   assert,
+  benchmark,
   jsonld,
   exit: code => process.exit(code),
   earl: {
@@ -110,7 +112,7 @@ const options = {
   verboseSkip: process.env.VERBOSE_SKIP === 'true',
   bailOnError: process.env.BAIL === 'true',
   entries,
-  benchmark,
+  benchmarkOptions,
   readFile: filename => {
     return fs.readFile(filename, 'utf8');
   },