fix the unit test failure

Author: LinuxSuRen

pkg/testing/loader_file_test.go

@@ -56,7 +56,7 @@ func TestFileLoader(t *testing.T) {
 			}
 			tt.verify(t, loader)
 
-			readonly, err := loader.Verify()
+			readonly, _, err := loader.Verify()
 			assert.NoError(t, err)
 			assert.False(t, readonly)
 		})

pkg/testing/loader_non_test.go

@@ -79,7 +79,7 @@ func TestNonLoader(t *testing.T) {
 	assert.NoError(t, loader.RenameTestCase("", "", ""))
 
 	var readonly bool
-	readonly, err = loader.Verify()
+	readonly, _, err = loader.Verify()
 	assert.NoError(t, err)
 	assert.False(t, readonly)
 	assert.Empty(t, loader.PProf(""))

pkg/testing/remote/grpc_store_test.go

@@ -109,7 +109,7 @@ func TestNewGRPCLoader(t *testing.T) {
 		assert.Error(t, err)
 
 		var readonly bool
-		readonly, err = writer.Verify()
+		readonly, _, err = writer.Verify()
 		assert.Error(t, err)
 		assert.False(t, readonly)
 	})