fix(init): issue computmaxer#162

src/adapter.js

@@ -51,18 +51,23 @@
             System.bundles = [];
         }
 
-        var systemInstantiate = System.instantiate;
-        var http = location.protocol;
-        var slashes = http.concat('//');
-        var host = slashes.concat(window.location.host) + '/base/';
-        System.instantiate = function(load) {
-            var fileKey = load.name.replace(host, '');
-            if (karma.config.jspm.coverageFiles[fileKey]) {
-                var re = new RegExp('file://' + karma.config.jspm.basePath + '/','g');
-                load.source = karma.config.jspm.coverageFiles[fileKey].replace(re, host);
+        if (typeof karma.config.jspm.coverage === 'object') {
+            var systemInstantiate = System.instantiate;
+            var http = location.protocol;
+            var slashes = http.concat('//');
+            var host = slashes.concat(window.location.host);
+            if (host.split('').reverse()[0] !== '/') {
+                host = host.concat('/');
             }
-            return systemInstantiate.call(System, load);
-        };
+            System.instantiate = function(load) {
+                var fileKey = load.name.replace(host, '');
+                if (karma.config.jspm.coverage.files[fileKey]) {
+                    var re = new RegExp('file://' + karma.config.jspm.coverage.basePath + '/','g');
+                    load.source = karma.config.jspm.coverage.files[fileKey].replace(re, host);
+                }
+                return systemInstantiate.call(System, load);
+            };
+        }
 
         // Load everything specified in loadFiles in the specified order
         var promiseChain = Promise.resolve();

src/init.js

@@ -102,13 +102,13 @@ module.exports = function(files, basePath, jspm, client, emitter) {
             return packagesPath + fileName + '.js';
         }
     }
-    
+
     Array.prototype.unshift.apply(files,
         configPaths.map(function(configPath) {
             return createPattern(configPath)
         })
     );
-    
+
     // Needed for JSPM 0.17 beta
     if(jspm.browser) {
         files.unshift(createPattern(browserPath));
@@ -139,7 +139,9 @@ module.exports = function(files, basePath, jspm, client, emitter) {
 
     // Allow Karma to serve all files within jspm_packages.
     // This allows jspm/SystemJS to load them
-    var jspmPattern = createServedPattern(packagesPath + '**/*', {nocache: jspm.cachePackages !== true});
+    var jspmPattern = createServedPattern(
+        packagesPath + '!(system-polyfills.src.js|system.src.js)/**', {nocache: jspm.cachePackages !== true}
+    );
     jspmPattern.watched = false;
     files.push(jspmPattern);
 };

src/preprocessor.js

@@ -27,14 +27,16 @@ function CoveragePreprocessor(basePath, client, reporters, helper, logger) {
     // create a jspm namespace to pass data to the browsers
     if (!client.jspm) client.jspm = {};
     // store instrumented sources to be executed by browser
-    client.jspm.coverageFiles = {};
+    client.jspm.coverage = {
+        files: {}
+    };
     // store basePath used to generate the key for each source in the obj above
-    client.jspm.basePath = basePath;
+    client.jspm.coverage.basePath = basePath;
     // temp folder to store instrumented files for sourcemap remapping
-    client.jspm.tempDirectory = path.join(__dirname, '../no-source-map/');
+    client.jspm.coverage.tempDirectory = path.join(__dirname, '../no-source-map/');
 
     // make temp directory
-    var tempDirectory = client.jspm.tempDirectory;
+    var tempDirectory = client.jspm.coverage.tempDirectory;
     if (!fs.existsSync(tempDirectory)) {
         fs.mkdirSync(tempDirectory);
     }
@@ -50,7 +52,7 @@ function CoveragePreprocessor(basePath, client, reporters, helper, logger) {
             // create a unique key to store the sources of modules for the browser
             var fileKey = getFileKey(getOSFilePath(load.address), basePath);
             // exclude the dependency modules (i.e. libraries) from instrumentation
-            if (client.jspm.coverageFiles[fileKey]) {
+            if (client.jspm.coverage.files[fileKey]) {
                 // put file's transpiled counterpart in temp folder
                 var filename;
                 var sourceMap = '';
@@ -63,6 +65,8 @@ function CoveragePreprocessor(basePath, client, reporters, helper, logger) {
                     delete load.metadata.sourceMap.sourcesContent;
                     // this is the file being "instrumented"
                     load.metadata.sourceMap.file = filename;
+                    // normalize the main source filename
+                    load.metadata.sourceMap.sources[0] = load.address;
                     // removing "file://" from paths
                     load.metadata.sourceMap.sources = load.metadata.sourceMap.sources.map(function (filename) {
                         return getOSFilePath(filename);
@@ -87,7 +91,7 @@ function CoveragePreprocessor(basePath, client, reporters, helper, logger) {
                 }
 
                 // instrument with istanbul
-                client.jspm.coverageFiles[fileKey] = instrument.instrumentSync(
+                client.jspm.coverage.files[fileKey] = instrument.instrumentSync(
                     load.source,
                     // make the path-like file key into something that can be used as a name
                     filename
@@ -106,14 +110,12 @@ function CoveragePreprocessor(basePath, client, reporters, helper, logger) {
         // only files to be instrumented pass through here
         // store this information to allow "instantiate" to exclude
         // dependency modules (i.e. libraries)
-        client.jspm.coverageFiles[getFileKey(file.path, basePath)] = true;
+        client.jspm.coverage.files[getFileKey(file.path, basePath)] = true;
         // import modules
         systemJS.import(file.path).then(function () {
             done(content);
         }).catch(function(err) {
-            log.error(err);
-            // remove temp directory since something went wrong
-            rimraf.sync(tempDirectory);
+            done(content);
         });
     };
 }

src/reporter.js

@@ -15,7 +15,7 @@ function CoverageReporter(rootConfig, helper, logger, emitter) {
     };
     config._onExit = function (done) {
         try {
-            rimraf.sync(rootConfig.client.jspm.tempDirectory);
+            rimraf.sync(rootConfig.client.jspm.coverage.tempDirectory);
         } catch(e) {
             log.error(e);
         }

test/testInit.spec.js

@@ -74,7 +74,7 @@ describe('jspm plugin init', function(){
     });
 
     it('should use the configured jspm_packages path and include it at the end of the files array', function(){
-        expect(normalPath(files[files.length - 1].pattern)).toEqual(normalPath(path.resolve(cwd, './custom_packages/**/*')));
+        expect(normalPath(files[files.length - 1].pattern)).toEqual(normalPath(path.resolve(cwd, './custom_packages/!(system-polyfills.src.js|system.src.js)/**')));
         expect(files[files.length - 1].included).toEqual(false);
         expect(files[files.length - 1].served).toEqual(true);
         expect(files[files.length - 1].watched).toEqual(false);