From b47a212b1736bde0f1224c69c28320edd20d2d0c Mon Sep 17 00:00:00 2001
From: Axel Kohlmeyer <akohlmey@gmail.com>
Date: Sun, 11 Jul 2021 13:55:00 -0400
Subject: [PATCH] initialize "me" before using it.

---
 unittest/formats/test_file_operations.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/unittest/formats/test_file_operations.cpp b/unittest/formats/test_file_operations.cpp
index eb30b69cfd..794222fe5a 100644
--- a/unittest/formats/test_file_operations.cpp
+++ b/unittest/formats/test_file_operations.cpp
@@ -208,11 +208,11 @@ TEST_F(FileOperationsTest, read_lines_from_file)
     MPI_Comm world = MPI_COMM_WORLD;
     int me, rv;
     memset(buf, 0, MAX_BUF_SIZE);
+    MPI_Comm_rank(world, &me);
 
     rv = utils::read_lines_from_file(nullptr, 1, MAX_BUF_SIZE, buf, me, world);
     ASSERT_EQ(rv, 1);
 
-    MPI_Comm_rank(world, &me);
     if (me == 0) {
         fp = fopen("safe_file_read_test.txt", "r");
         ASSERT_NE(fp, nullptr);