debug test sources

src/main/kotlin/com/emberjs/resolver/EmberFileUrlMapper.kt

@@ -12,7 +12,16 @@ import com.intellij.util.Urls
 import com.jetbrains.javascript.debugger.FileUrlMapper
 
 class EmberFileUrlMapper : FileUrlMapper() {
-    /** Find the source file associated with the URL */
+    /**
+     * Find the source file associated with the URL
+     *
+     * For example:
+     *
+     *   http://localhost:4200/assets/my-app/components/foo.js => [
+     *     file://path/to/my-app/app/components/foo.js
+     *     file://path/to/my-app/app/lib/my-in-repo-addon/app/components/foo.js
+     *   ]
+     */
     override fun getFile(url: Url, project: Project, requestor: Url?): VirtualFile? {
         return ModuleManager.getInstance(project).modules.asSequence()
             .mapNotNull { it.emberRoot }
@@ -26,13 +35,25 @@ class EmberFileUrlMapper : FileUrlMapper() {
             .firstOrNull()
     }
 
-    /** Calculate the URL for a source file path */
+    /**
+     * Calculate the URL for a source file path
+     *
+     * For example:
+     *
+     *   file://path/to/my-app/app/components/foo.js                    => http://localhost:4200/assets/my-app/components/foo.js
+     *   file://path/to/my-app/tests/integration/components/foo-test.js => http://localhost:4200/assets/my-app/tests/integration/components/foo-test.js
+     */
     override fun getUrls(file: VirtualFile, project: Project, currentAuthority: String?): MutableList<Url> {
         val authority = currentAuthority ?: return mutableListOf()
         val module = file.parentEmberModule ?: return mutableListOf()
         val appName = Ember.getAppName(module) ?: return mutableListOf()
 
-        val path = file.path.removePrefix("${module.path}/app/")
+        val path = file.path
+                .removePrefix(module.path)
+                .removePrefix("/")
+                .removePrefix("app")
+                .removePrefix("/")
+
         return mutableListOf(Urls.newHttpUrl(authority, "/assets/$appName/$path"))
     }
 }