Only add files that are match an analyzed files glob.

pkg/analysis_server/test/single_context_manager_test.dart

Index: pkg/analysis_server/test/single_context_manager_test.dart
diff --git a/pkg/analysis_server/test/single_context_manager_test.dart b/pkg/analysis_server/test/single_context_manager_test.dart
index 68a43763aedff597c354dca78fdda123a438c6ff..8c68e77c927ca2f3835cbb06f39f312110e0bd13 100644
--- a/pkg/analysis_server/test/single_context_manager_test.dart
+++ b/pkg/analysis_server/test/single_context_manager_test.dart
@@ -247,6 +247,18 @@ class SingleContextManagerTest {
     callbacks.assertContextFiles(project, [fileA, fileB]);
   }
 
+  void test_setRoots_ignoreGlobs() {
+    String file1 = '$projPath/file.dart';
+    String file2 = '$projPath/file.foo';
+    // create files
+    resourceProvider.newFile(file1, '');
+    resourceProvider.newFile(file2, '');
+    // set roots
+    manager.setRoots(<String>[projPath], <String>[], <String, String>{});
+    callbacks.assertContextPaths([projPath]);
+    callbacks.assertContextFiles(projPath, [file1]);
+  }
+
   void test_setRoots_pathContainsDotFile() {
     // If the path to a file (relative to the context root) contains a folder
     // whose name begins with '.', then the file is ignored.