From e2c5632db8c78b9aaea00d33d6f8ee909e645bad Mon Sep 17 00:00:00 2001
From: Jakob Unterwurzacher
Date: Sun, 16 Oct 2016 13:57:27 +0200
Subject: tests: deduplicate UtimesNano testing code

---
 tests/matrix/matrix_test.go | 72 ++++++++++++++++-----------------------------
 1 file changed, 25 insertions(+), 47 deletions(-)

(limited to 'tests/matrix')

diff --git a/tests/matrix/matrix_test.go b/tests/matrix/matrix_test.go
index 1c94cb6..8aa5c9c 100644
--- a/tests/matrix/matrix_test.go
+++ b/tests/matrix/matrix_test.go
@@ -631,13 +631,27 @@ func TestLchown(t *testing.T) {
 	}
 }
 
-// Set nanoseconds by path, normal file
-func TestUtimesNano(t *testing.T) {
-	path := test_helpers.DefaultPlainDir + "/utimesnano"
-	err := ioutil.WriteFile(path, []byte("foobar"), 0600)
+// Set nanoseconds by path, symlink
+func TestUtimesNanoSymlink(t *testing.T) {
+	path := test_helpers.DefaultPlainDir + "/utimesnano_symlink"
+	err := os.Symlink("/some/nonexisting/file", path)
 	if err != nil {
 		t.Fatal(err)
 	}
+	// syscall.UtimesNano does not provide a way to pass AT_SYMLINK_NOFOLLOW,
+	// so we call the external utility "touch", which does.
+	cmd := exec.Command("touch", "--no-dereference", path)
+	cmd.Stderr = os.Stderr
+	cmd.Stdout = os.Stdout
+	err = cmd.Run()
+	if err != nil {
+		t.Error(err)
+	}
+}
+
+// doTestUtimesNano verifies that setting nanosecond-precision times on "path"
+// works correctly. Pass "/proc/self/fd/N" to test a file descriptor.
+func doTestUtimesNano(t *testing.T, path string) {
 	ts := make([]syscall.Timespec, 2)
 	// atime
 	ts[0].Sec = 1
@@ -645,7 +659,7 @@ func TestUtimesNano(t *testing.T) {
 	// mtime
 	ts[1].Sec = 3
 	ts[1].Nsec = 4
-	err = syscall.UtimesNano(path, ts)
+	err := syscall.UtimesNano(path, ts)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -666,22 +680,14 @@ func TestUtimesNano(t *testing.T) {
 	}
 }
 
-// Set nanoseconds by path, symlink
-func TestUtimesNanoSymlink(t *testing.T) {
-	path := test_helpers.DefaultPlainDir + "/utimesnano_symlink"
-	err := os.Symlink("/some/nonexisting/file", path)
+// Set nanoseconds by path, normal file
+func TestUtimesNano(t *testing.T) {
+	path := test_helpers.DefaultPlainDir + "/utimesnano"
+	err := ioutil.WriteFile(path, []byte("foobar"), 0600)
 	if err != nil {
 		t.Fatal(err)
 	}
-	// syscall.UtimesNano does not provide a way to pass AT_SYMLINK_NOFOLLOW,
-	// so we call the external utility "touch", which does.
-	cmd := exec.Command("touch", "--no-dereference", path)
-	cmd.Stderr = os.Stderr
-	cmd.Stdout = os.Stdout
-	err = cmd.Run()
-	if err != nil {
-		t.Error(err)
-	}
+	doTestUtimesNano(t, path)
 }
 
 // Set nanoseconds by fd
@@ -691,34 +697,6 @@ func TestUtimesNanoFd(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-
-	ts := make([]syscall.Timespec, 2)
-	// atime
-	ts[0].Sec = 5
-	ts[0].Nsec = 6
-	// mtime
-	ts[1].Sec = 7
-	ts[1].Nsec = 8
-
 	procPath := fmt.Sprintf("/proc/self/fd/%d", f.Fd())
-	err = syscall.UtimesNano(procPath, ts)
-	if err != nil {
-		t.Fatalf("%s: %v", procPath, err)
-	}
-
-	var st syscall.Stat_t
-	err = syscall.Stat(path, &st)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if st.Atim != ts[0] {
-		if st.Atim.Nsec == 0 {
-			// TODO remove this once the pull request is merged
-			t.Skip("Known limitation, https://github.com/hanwen/go-fuse/pull/131")
-		}
-		t.Errorf("Wrong atime: %v, want: %v", st.Atim, ts[0])
-	}
-	if st.Mtim != ts[1] {
-		t.Errorf("Wrong mtime: %v, want: %v", st.Mtim, ts[1])
-	}
+	doTestUtimesNano(t, procPath)
 }
-- 
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