Rerun "pub list" when pubspec.lock changes.

pkg/analysis_server/test/package_map_provider_test.dart

Index: pkg/analysis_server/test/package_map_provider_test.dart
diff --git a/pkg/analysis_server/test/package_map_provider_test.dart b/pkg/analysis_server/test/package_map_provider_test.dart
index f7567b091854ddd849159ad1872729fc4f91c0e3..78607a3e0987549987d947f68575ae1c23941662 100644
--- a/pkg/analysis_server/test/package_map_provider_test.dart
+++ b/pkg/analysis_server/test/package_map_provider_test.dart
@@ -28,7 +28,7 @@ main() {
         String folderPath = '/path/to/folder';
         resourceProvider.newFolder(folderPath);
         Map<String, List<Folder>> result = packageMapProvider.parsePackageMap(
-            JSON.encode({'packages': {packageName: folderPath}}));
+            JSON.encode({'packages': {packageName: folderPath}})).packageMap;
         expect(result, hasLength(1));
         expect(result.keys, contains(packageName));
         expect(result[packageName], hasLength(1));
@@ -40,7 +40,7 @@ main() {
         String packageName = 'foo';
         String folderPath = '/path/to/folder';
         Map<String, List<Folder>> result = packageMapProvider.parsePackageMap(
-            JSON.encode({'packages': {packageName: folderPath}}));
+            JSON.encode({'packages': {packageName: folderPath}})).packageMap;
         expect(result, hasLength(0));
       });
 
@@ -51,7 +51,7 @@ main() {
         resourceProvider.newFolder(folderPath1);
         resourceProvider.newFolder(folderPath2);
         Map<String, List<Folder>> result = packageMapProvider.parsePackageMap(
-            JSON.encode({'packages': {packageName: [folderPath1, folderPath2]}}));
+            JSON.encode({'packages': {packageName: [folderPath1, folderPath2]}})).packageMap;
         expect(result, hasLength(1));
         expect(result.keys, contains(packageName));
         expect(result[packageName], hasLength(2));
@@ -60,6 +60,18 @@ main() {
           expect(result[packageName][i].path, isIn([folderPath1, folderPath2]));
         }
       });
+
+      test('Handle dependencies', () {
+        String path1 = '/path/to/folder1/pubspec.lock';
+        String path2 = '/path/to/folder2/pubspec.lock';
+        resourceProvider.newFile(path1, '...');
+        resourceProvider.newFile(path2, '...');
+        Set<String> dependencies = packageMapProvider.parsePackageMap(
+            JSON.encode({'packages': {}, 'input_files': [path1, path2]})).dependencies;
+        expect(dependencies, hasLength(2));
+        expect(dependencies, contains(path1));
+        expect(dependencies, contains(path2));
+      });
     });
   });
 }