fix: fix dts resolution

Author: 07akioni

examples/angular2/src/app/hello.ts

@@ -1,4 +1,5 @@
 import { Component } from "@angular/core";
+import { Properties } from 'csstype'
 
 @Component({
     selector: "app-hello",

packages/karma-typescript/src/bundler/bundle-item.ts

@@ -15,7 +15,7 @@ export class BundleItem {
     }
 
     public isScript(): boolean {
-        return (this.filename && /\.(js|jsx|mjs|ts|tsx)$/.test(this.filename))
+        return (this.filename && !this.isTypingsFile() && /\.(js|jsx|mjs|ts|tsx)$/.test(this.filename))
             || this.transformedScript;
     }
 

packages/karma-typescript/src/bundler/dependency-walker.ts

@@ -41,7 +41,6 @@ export class DependencyWalker {
 
                 if (lodash.isMap(resolvedModules)) { // Typescript 2.2+
                     resolvedModules.forEach((resolvedModule: any, moduleName: string) => {
-                        if (resolvedModule.extension === ".d.ts") return
                         this.addBundleItem(queued, resolvedModule, moduleName, ambientModuleNames);
                     });
                 }

packages/karma-typescript/src/bundler/resolve/resolver.ts

@@ -195,17 +195,25 @@ export class Resolver {
                 return onFilenameResolved();
             }
 
-            // This is probably a compiler path module (.d.ts)
-            if (bundleItem.isNpmModule() && bundleItem.isTypingsFile() &&
-                bundleItem.filename.indexOf(bundleItem.moduleName) === -1) {
-                const filepath = PathTool.fixWindowsPath(bundleItem.filename);
-                const matches = filepath.match(/\/node_modules\/(.*)\//);
-                if (matches && matches[1]) {
-                    moduleName = matches[1];
-                    this.log.debug("Resolved module name [%s] to [%s]", bundleItem.moduleName, moduleName);
+            
+            if (bundleItem.isNpmModule() && bundleItem.isTypingsFile()) {
+                // This is probably a compiler path module (.d.ts)
+                if (bundleItem.filename.indexOf(bundleItem.moduleName) === -1) {
+                  const filepath = PathTool.fixWindowsPath(bundleItem.filename);
+                  const matches = filepath.match(/\/node_modules\/(.*)\//);
+                  if (matches && matches[1]) {
+                      moduleName = matches[1];
+                      this.log.debug("Resolved module name [%s] to [%s]", bundleItem.moduleName, moduleName);
+                  }
+                }
+                // This is probably a type only module import
+                else {
+                  return onFilenameResolved()
                 }
             }
 
+
+
             bopts = {
                 basedir: bundleItem.filename ? path.dirname(bundleItem.filename) : this.config.karma.basePath,
                 extensions: this.config.bundlerOptions.resolve.extensions,