From 22031d7e531985e9e94d694e74fb00da99de72a5 Mon Sep 17 00:00:00 2001
From: Jakob Unterwurzacher
Date: Sat, 7 Apr 2018 15:21:05 +0200
Subject: tests: matrix: check for fd leaks

And fix two in test_helpers.Mount().

Leftover fds can cause an unmount failure like this later:
fusermount: failed to unmount /tmp/gocryptfs-test-parent/873632270/default-plain: Device or resource busy
so try to catch them early.
---
 tests/matrix/matrix_test.go | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'tests/matrix')

diff --git a/tests/matrix/matrix_test.go b/tests/matrix/matrix_test.go
index 37c7b20..bc964ae 100644
--- a/tests/matrix/matrix_test.go
+++ b/tests/matrix/matrix_test.go
@@ -72,7 +72,15 @@ func TestMain(m *testing.M) {
 		opts = append(opts, fmt.Sprintf("-aessiv=%v", testcase.aessiv))
 		opts = append(opts, fmt.Sprintf("-raw64=%v", testcase.raw64))
 		test_helpers.MountOrExit(test_helpers.DefaultCipherDir, test_helpers.DefaultPlainDir, opts...)
+		before := test_helpers.ListFds()
 		r := m.Run()
+		after := test_helpers.ListFds()
+		if len(before) != len(after) {
+			fmt.Printf("fd leak? before, after:\n")
+			fmt.Printf("%v\n", before)
+			fmt.Printf("%v\n", after)
+			os.Exit(1)
+		}
 		test_helpers.UnmountPanic(test_helpers.DefaultPlainDir)
 		if r != 0 {
 			os.Exit(r)
-- 
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